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Diode patents

      

This page is updated frequently with new Diode-related patent applications.




 Light emitting diode control circuit with hysteretic control and low-side output current sensing patent thumbnailnew patent Light emitting diode control circuit with hysteretic control and low-side output current sensing
An led control circuit controls a switching operation of a switch by hysteretic control. The led control circuit includes a controller integrated circuit (ic) that senses a current sense voltage from a current sense resistor that is on a low-side of the switch.
Fairchild Korea Semiconductor Ltd.


 Light emitting diode control circuit with wide range input voltage patent thumbnailnew patent Light emitting diode control circuit with wide range input voltage
A light emitting diode (led) control circuit includes an inductor current sense circuit with a high-side diode string, a low-side diode string, and a sense resistor in series with and between the high-side and low side diode strings. The led control circuit receives an input voltage on an end that connects to the high-side diode string.
Fairchild Korea Semiconductor Ltd.


 Multiple linear regulation patent thumbnailnew patent Multiple linear regulation
A circuit comprises an amplifier and a plurality of channels, the plurality of channels including respective transistors. The respective transistors of the channels control respective magnitudes of respective currents of the channels according to an output of the amplifier.
Fairchild Korea Semiconductor, Ltd.


 Illuminator with engineered illumination pattern patent thumbnailnew patent Illuminator with engineered illumination pattern
Techniques for tuning the illumination pattern of a light emitting diode (led) are described. An example image capture system incorporates an led with an integrated micro-reflector.
Intel Corporation


 Optical transceiver using fec, optical transceiving system comprising same, and remote optical wavelength control method patent thumbnailnew patent Optical transceiver using fec, optical transceiving system comprising same, and remote optical wavelength control method
The present invention relates to an optical transceiver using fec, an optical transceiving system comprising the same, and a remote optical wavelength control method and, specifically, to an optical transceiver using fec, the optical transceiver comprising: a laser diode driver (ldd) for driving a laser diode (ld) for outputting light; a transmitter optical sub-assembly (tosa) for transmitting an optical signal received from the ld driver; a receiver optical sub-assembly (rosa) for receiving the optical signal from the transmitter optical sub-assembly; a micro controller unit (mcu) for controlling the transmitter optical sub-assembly and the receiver optical sub-assembly and analyzing the optical signal; and a forward error correction (fec) which is controlled by the micro controller unit and generates the optical signal by including, in an overhead excess data frame, control or monitoring request information of a subscriber-side base station.. .
Lightron Fiber-optic Devices Inc.


 Current-controlled active diode patent thumbnailnew patent Current-controlled active diode
This application relates to an active diode circuit for letting current pass in one direction and blocking current in the opposite direction. The active diode circuit comprises a transistor, a control voltage generation circuit for generating a control voltage that is supplied to a control terminal of the transistor, and a sensing circuit for detecting a quantity indicative of a current flowing through the transistor.
Dialog Semiconductor (uk) Limited


 Junction box for solar cell patent thumbnailnew patent Junction box for solar cell
The present invention discloses a junction box for a solar cell. The junction box includes a box body, wherein the box body is provided with a plurality of conducting pieces for connecting solar cell pieces; two adjacent conducting pieces are connected by a diode; the conducting pieces at both ends are connected to the outside parts via a guide line respectively; and the forward dissipation power of the diode in the middle is less than that of the diodes at both sides.
Zhejiang Renhe Photovoltaic Technology Co., Ltd.


 Junction box for solar cell patent thumbnailnew patent Junction box for solar cell
The invention discloses a junction box for a solar cell. The junction box includes a box body, wherein the box body is provided with a plurality of conducting pieces for connecting solar cell pieces; two adjacent conducting pieces are connected by a diode; the conducting pieces at both ends are connected to the outside via a guide line respectively; and the chip area of the diode in the middle is bigger than that of the diodes at both sides.
Zhejiang Renhe Photovoltaic Technology Co., Ltd.


 System and  an inverter for self-excitation of an induction machine patent thumbnailnew patent System and an inverter for self-excitation of an induction machine
A capacitor is connected between the direct current voltage terminals. Switched terminals of a first switch and a second switch are coupled in series, between the direct current voltage terminals.
Deere & Company


 Precharge  power conversion system patent thumbnailnew patent Precharge power conversion system
Power conversion systems, methods and precharge systems are disclosed to charge a dc bus capacitor, including thyristors and reverse diodes coupled in ac circuit paths between ac input lines and a rectifier, a precharge resistor coupled in one or more of the ac circuit paths, and a controller to turn all the thyristors off to allow the dc bus capacitor to charge through the precharge resistor, and to turn all the thyristors on when the dc bus voltage reaches a non-zero threshold value.. .
Rockwell Automation Technologies, Inc.


new patent

Driver for low emission switching regulator

A switching regulator includes circuitry for reducing conductive emissions caused when the regulators switch from one transistor switch to the other. The switching regulator includes at least one switch with a diode connected from the source to the drain of at least one of the transistor switches.
Stmicroelectronics (china) Investment Co. Ltd

new patent

Power supply sub-module of mmc

Provided is a power supply apparatus for sub-modules of a modular multilevel converter (mmc) which stably supplies power to the sub-modules of the mmc in connection with an hvdc system. The power supply apparatus for sub-modules of an mmc can include a charging unit in which an input voltage between p and n busses of the mmc is stored, a relay unit connected in parallel with the charging unit, a resistor connected in series with the relay unit, a tvs diode connected in series with the resistor, a zener diode connected in series with the tvs diode, a transformer for delivering the input voltage (in a primary winding) to a secondary winding thereof, and a switch for switching the flow of current supplied to the transformer..
Hyosung Corporation

new patent

High-power planar waveguide (pwg) pumphead with modular components for high-power laser system

A system includes a laser system having a master oscillator and a planar waveguide (pwg) amplifier having one or more laser diode pump arrays, a pwg pumphead, input optics, and output optics. The pwg pumphead is configured to receive a low-power optical beam from the master oscillator and generate a high-power optical beam.
Raytheon Company

new patent

Method for manufacturing light extraction substrate for organic light emitting diode, light extraction substrate for organic light emitting diode, and organic light emitting diode comprising same

The present invention relates to a method for manufacturing a light extraction substrate for an organic light emitting diode, a light extraction substrate for an organic light emitting diode, and an organic light emitting diode comprising same, and more specifically, to a method for manufacturing a light extraction substrate for an organic light emitting diode, a light extraction substrate for an organic light emitting diode, and an organic light emitting diode comprising same, capable of significantly increasing light extraction efficiency of the organic light emitting diode. To this end, provided in the present invention is the method for manufacturing the light extraction substrate for the organic light emitting diode, comprising: a mixture-preparing step of preparing a mixture by mixing a sol-gel solution containing a first metal oxide, and a plurality of scattering particles composed of a second metal oxide having a refractive index different from that of the first metal oxide; a mixture coating step of coating the mixture on a base substrate; a mixture firing step of firing the mixture which has been coated to form, on the base substrate, a matrix layer comprising the first metal oxide and inside of which the scattering particles are dispersed; and a filling layer forming step of forming a filling layer by filling the surface of the matrix layer with a material having a refractive index different from that of the matrix layer, wherein the filling layer fills cracks formed on the matrix layer when firing the mixture, and wherein corrugation is formed on the surface of the filling layer by the scattering particles and the shape of the cracks which is transferred onto the surface of the filling layer..
Corning Precision Materials Co., Ltd.

new patent

Organic light-emitting diode and producing an organic light-emitting diode

In one embodiment the organic light-emitting diode includes a substrate having a substrate upper side, an electrically conductive grid structure for a current distribution and an electrically conductive particle layer, which are located at the substrate upper side. The grid structure may be embedded in the particle layer.
Osram Oled Gmbh

new patent

Organic light emitting diode

An embodiment of the present invention discloses an organic light emitting diode comprising an organic layer consisting of one layer or more, which includes a transparent electrode, a reflective electrode provided facing the transparent elector, and a light emitting layer provided between the transparent electrode and the reflective electrode. Here, the light emitting layer includes two or more light emitting materials and is characterized in that the difference between the dipole moment value of one light emitting material and the dipole moment value of another light emitting material from among the light emitting materials is 1.5 debye or more..
Lg Chem, Ltd.

new patent

Solar antenna array fabrication

A method for constructing a solar rectenna array by growing carbon nanotube antennas between lines of metal, and subsequently applying a bias voltage on the carbon nanotube antennas to convert the diodes on the tips of the carbon nanotube antennas from metal oxide carbon diodes to geometric diodes. Techniques for preserving the converted diodes by adding additional oxide are also described..
Novasolix, Inc.

new patent

Apparatus and forming organic light emitting diode

A method for forming an organic light emitting diode is provided. A substrate and an evaporating source are provided.
Hon Hai Precision Industry Co., Ltd.

new patent

Light-emitting module and light unit having thereof

A light-emitting module provided in an embodiment comprises: a circuit board; a light-emitting diode arranged on the circuit board; an optical lens arranged on the light-emitting diode; a reflective sheet arranged between the optical lens and the circuit board; and an adhesive layer arranged between the reflective sheet and the circuit board, wherein the optical lens comprises: an incident surface having a recessed part on the light-emitting diode; a reflective surface for reflecting light incident on the incident surface; and a light-emitting surface arranged on the outer circumference thereof, wherein the reflective sheet includes an open area in which the light-emitting diode is arranged and the open area has a width wider than the width of the light-emitting diode and narrower than the width of the incident surface of the optical lens.. .
Lg Innotek Co., Ltd.

new patent

Light emitting diode for surface mount technology, manufacturing the same, and manufacturing light emitting diode module

A light emitting diode (led) includes a substrate, a first semiconductor layer disposed on the substrate, an active layer disposed on the first semiconductor layer, a second semiconductor layer disposed on the active layer, a first conductive layer disposed on a portion of the second semiconductor layer, a second conductive layer disposed on the second semiconductor layer, and an insulation layer including a first insulating layer and a second insulating layer disposed on the first insulating layer, and overlapping the first semiconductor layer, the second semiconductor layer, and the second conductive layer, in which the insulation layer has a first region having different thicknesses and a second region having a substantially constant thickness.. .
Seoul Viosys Co., Ltd.

new patent

Light-emitting diode with multiple n contact structure

Provided are a horizontal light emitting diode (led) device and a method for fabricating the same. The horizontal led device includes a sapphire substrate; an n-type gan layer disposed on the sapphire substrate; an activation layer disposed on the n-type gan layer; a p-type gan layer disposed on the activation layer; a current spreading layer disposed on the p-type gan layer; a p-electrode disposed on the current spreading layer; a plurality of holes exposing the n-type gan layer through the current spreading layer, the p-type gan layer, and activation layer; and an n-electrode disposed on the exposed n-type gan layer and being in ohmic contact with the exposed n-type gan layer at a plurality of positions on bottom surfaces of the plurality of holes..
Korea University Research And Business Foundation

new patent

Light emitting diode structure, light emitting diode device and the manufacturing method thereof

A method for manufacturing a light emitting diode structure uses a removable prefilled layer to attach the flip-type chip on a temporary substrate. A growth substrate of the flip-type chip is removed by laser lift-off, and then the light emitting diode structure is attached to a transparent support body.
Lite-on Technology Corporation

new patent

Fabricating optical sensing device

An optical sensing device includes a thin film transistor disposed on a substrate, an optical sensor, a planar layer, and an organic light emitting diode. The optical sensor includes a metal electrode disposed on a gate dielectric layer of the thin film transistor and connecting to a drain electrode of the thin film transistor, an optical sensing layer disposed on the metal electrode, and a first transparent electrode disposed on the optical sensing layer.
Au Optronics Corp.

new patent

Modulation device comprising a nanodiode

The invention relates to a modulation device created on a substrate (1), comprising at least one nanodiode in the form of a t fitted into a u, the channel (31) of said nanodiode being the leg of the t that is inserted into the u. The device is characterised in that it comprises at least one electrically conductive line (37) that passes over at least part of said channel (31)..
Unlversite Lille 1 - Sciences Et Technologies

new patent

Semiconductor device

The present invention relates to a vertical semiconductor device such as an igbt or a diode which includes an n buffer layer formed in the undersurface of and adjacent to an n− drift layer. A concentration slope δ, which is derived from displacements in a depth tb (μm) and an impurity concentration cb (cm−3), from the upper surface to the lower surface in a main portion of the n buffer layer satisfies a concentration slope condition defined by {0.03≦δ≦0.7}..
Mitsubishi Electric Corporation

new patent

Organic light emitting diode display device and manufacturing method thereof

An organic light emitting diode display includes a substrate, a semiconductor, a gate electrode, a source electrode connected to a first portion of the semiconductor, a drain electrode connected to a second portion of the semiconductor, and a pixel electrode connected to the drain electrode. Each of the source electrode, the drain electrode, and the pixel electrode includes a barrier metal layer, a low resistance metal layer, a metal oxide layer, and a contact assistant layer disposed between the low resistance metal layer and the metal oxide layer.
Samsung Display Co., Ltd.

new patent

Tft array substrate structure based on oled

A thin film transistor (tft) array substrate structure based on organic light-emitting diodes (oleds) may include multiple sets of tft components, capacitors, common electrodes, and data signal lines, all of which are formed on a substrate. Each set of tft components includes a driving tft, and the driving tft has a gate, a source, and a drain.
Shenzhen Royole Technologies Co. Ltd.

new patent

Organic light emitting diode display panel and organic light emitting diode display device containing the same

An organic light emitting diode display panel is disclosed, which includes: a first substrate, having a display region and a non-display region; an organic light emitting layer disposed above the first substrate; and a plurality of spacers disposed above the first substrate, the spacers including a first spacer, a second spacer, a third spacer and a fourth spacer, the first spacer and the second spacer being adjacently located in the display region, and the third spacer and the fourth spacer being adjacently located in the non-display region, wherein a first minimum distance is between the first spacer and the second spacer, a second minimum distance is between the third spacer and the fourth spacer, and the first minimum distance is different from the second minimum distance. In addition, the present invention also disclosed an organic light emitting diode display device including the same..
Innolux Corporation

new patent

Method for fabricating an array of diodes, in particular for a non-volatile memory, and corresponding device

The array of diodes comprises a matrix plane of diodes arranged according to columns in a first direction and according to rows in a second direction orthogonal to the first direction. The said diodes comprise a cathode region of a first type of conductivity and an anode region of a second type of conductivity, the said cathode and anode regions being superposed and disposed on an insulating layer situated on top of a semiconductor substrate..
Stmicroelectronics (rousset) Sas

new patent

Charge packet signal processing using pinned photodiode devices

An image sensor may include an array of image pixels coupled to analog-to-digital conversion circuitry formed from pinned photodiode charge transfer circuits. Majority charge carriers for the pinned photodiodes in the charge transfer circuits may be electrons for photodiode wells formed from n-type doped regions and may be holes for photodiode formed from p-type doped regions.
Semiconductor Components Industries, Llc

new patent

Charge packet signal processing using pinned photodiode devices

An image sensor may include an array of image pixels coupled to analog-to-digital conversion circuitry formed from pinned photodiode charge transfer circuits. Majority charge carriers for the pinned photodiodes in the charge transfer circuits may be electrons for photodiode wells formed from n-type doped regions and may be holes for photodiode formed from p-type doped regions.
Semiconductor Components Industries, Llc

new patent

Voltage-balanced serial iled pixel and display

A multi-color inorganic light-emitting diode (iled) display includes a display substrate with a common voltage signal and a common ground signal and a plurality of multi-color pixels. In certain embodiments, each multi-color pixel includes a first color sub-pixel including two or more first ileds, a second color sub-pixel including one or more second ileds, and a third color sub-pixel including one or more third ileds.
X-celeprint Limited

new patent

Micro-transfer-printed light-emitting diode device

A compound light-emitting diode (led) device includes a semiconductor substrate having an active electronic circuit formed in or on the semiconductor substrate. Two or more electrically conductive circuit connection pads are formed in or on the semiconductor substrate and are electrically connected to the active electronic circuit.
X-celeprint Limited

new patent

Novel heterocyclic compounds and organic light-emitting diode including the same

Wherein substituents r1 to r8, x1 to x4, w1, and y1 are each as defined in the specification.. .

new patent

Aging tolerant register file

An apparatus is provided which comprises: a first supply node to provide power supply; a column of memory cells coupled to the first supply node; a diode-connected device having a gate terminal coupled to the first supply node, and a source terminal coupled to second supply node; and a stack of devices coupled to the first supply node, wherein at least one device in the stack is coupled to the second supply node, and wherein the stack of devices is controllable according to an operation mode.. .
Intel Corporation

new patent

Low power sense amplifier based on phase transition material

A sense amplifier utilizes a phase transition material (ptm) in conjunction with cmos circuits to provide a precise sensing threshold. The sense amplifier can be used in memory applications to sense states of stored bits with high accuracy and robustness.
The Penn State Research Foundation

new patent

Pixel circuit and drive method therefor, and active matrix organic light-emitting display

A pixel circuit and a drive method therefor, and an active matrix organic light-emitting display. The pixel circuit initializes an anode of an organic light-emitting diode (oled) through a seventh thin-film transistor (m7), so that the aging of the organic light-emitting diode (oled) is slowed down and the service life of the organic light-emitting diode (oled) is prolonged.
Kunshan Go-visionox Opto-electronics Co., Ltd.

new patent

Module type display apparatus, display apparatus comprising the module type display apparatus, and control method thereof

A module type display apparatus includes a communication interface configured to communicate with at least one external module type display apparatus; a display panel including a plurality of light emitting diodes (leds); a storage configured to store information regarding at least one of brightness and a color coordinate that is previously measured according to a characteristic of an led among the plurality of light emitting diodes; at least one sensor configured to sense a characteristic of at least one led; and a processor configured to set a target value based on at least one of second brightness and a second color coordinate received from the at least one external module type display apparatus, and control to adjust at least one of first brightness and first color coordinate of the at least one led to have the target value, based on the information acquired from the storage.. .
Samsung Electronics Co., Ltd.

new patent

Operating display device and display device

An operating method of a display device includes providing a first supply voltage to a light emitting diode to make a driving current pass through the light emitting diode. The light emitting diode is electrically connected with an electrically controlled switch, the electrically controlled switch is electrically connected with a control circuit, the control circuit is configured to drive the electrically controlled switch according to a data signal and a scan signal, the first supply voltage is a pulse width modulation voltage, and a duty cycle of the first supply voltage is less than 100%..
Mikro Mesa Technology Co., Ltd.

new patent

Laser diode collimator and a pattern projecting device using same

An optical collimating unit is provided that comprises a laser unit, and a lens having three optical surfaces, being a first refractive surface, a second reflective surface and a third refractive surface. Also provided is a light projection device comprising an optical collimating unit that comprises a laser unit, a lens and an optical component configured to shape laser beams being emitted into respective desired light patterns..
Inuitive Ltd.

new patent

Solid state switch power emulator

A solid state switch power emulator circuit, the circuit including a high voltage section including a high voltage power supply (hvps); a high voltage capacitor (hvc) electronically connected to the hvps in parallel; a high voltage switch (hvs) electronically connected to the hvc and the hvps in series; and a high voltage load (hvl) electronically connected to the hvs in series; a low voltage section including a low voltage power supply (lvps); a low voltage capacitor (lvc) electronically connected to the lvps in parallel; a low voltage switch (lvs) electronically connected to the lvps and the lvc in series; a low voltage load (lvl) electronically connected to the lvs in series; and a high voltage diode (hvd) electronically connected to the lvl in series, wherein voltage levels associated with the low voltage section are less than voltage levels associated with the high voltage section.. .
U.s. Army Research Laboratory Attn: Rdrl-loc-i

new patent

Sobriety monitoring system with identification indicia

A system for monitoring the sobriety of a user is provided. The system may include a testing device that generates a substance content signal.
Soberlink Healthcare, Llc

new patent

Charge packet signal processing using pinned photodiode devices

An image sensor may include an array of image pixels coupled to analog-to-digital conversion circuitry formed from pinned photodiode charge transfer circuits. Majority charge carriers for the pinned photodiodes in the charge transfer circuits may be electrons for photodiode wells formed from n-type doped regions and may be holes for photodiode formed from p-type doped regions.
Semiconductor Components Industries, Llc

new patent

Image sensors with led flicker mitigaton global shutter pixles

An image sensor may include one or more pixels having a charge steering structure that may selectively route charge from a photodiode to increase the dynamic range of the pixel. The charge steering structure may be a coupled gate structure that routes overflow charge to a voltage supply and to one or more integrating storage structures during an exposure period.
Semiconductor Components Industries, Llc

new patent

Light emitting diode lamp

An led lamp is provided. The led lamp includes a lamp shell and an led module.
Energy Pro Technology Co., Ltd.

new patent

Adjustable light emitting diode luminaire device and system for customized installation

A lighting system is disclosed that includes elongated led light fixture with one or more master circuit boards configured to power light emitting diodes. The elongated led light fixtures include modular light boards with arrays of light emitting diodes that interchangeably couple to the matched connectors on the master circuit board.
Finelite Inc.

new patent

Power plant methods and apparatus

A hybrid power plant system including a gas turbine system and a coal fired boiler system inputs high oxygen content gas turbine flue gas into the coal fired boiler system, said gas turbine flue gas also including carbon dioxide that is desired to be captured rather than released to the atmosphere. Oxygen in the gas turbine flue gas is consumed in the coal fired boiler, resulting in relatively low oxygen content boiler flue gas stream to be processed.
Mitsubishi Hitachi Power Systems Americas, Inc.

new patent

Integrated module of on-board charger and inverter and control method thereof

An integrated module of an obc and an inverter includes: an obc primary side circuit and a plurality of transformers converting, when 3-phase alternating current (ac) voltages are received from a fuel station, the 3-phase ac voltages in form and level and transmitting the converted voltages into a secondary side; and an inverter switch turned off in a charge mode in which a high capacity vehicle battery is charged, to rectify an output voltage of a secondary side of each of the plurality of transformers by a body diode included in each switching element for an inverting function.. .
Hyundai Motor Company

new patent

Electroceutical device and wrap for using the same

An electroceutical apparatus and self-care method for treating pain by providing transcutaneous electrical nerve stimulation (tens) in combination with pulsed ultrasound or light emitting diode (led) treatments. In some embodiments, the apparatus includes a pod unit and a controller, and wrap for holding the pod unit on an area of a user's body.
360 Approach To Health, Llc

new patent

Storage apparatus having air purifying module

A storage apparatus according to an embodiment may include a body having a storage space of storage products and an air purifying module coupled to the body. The air purifying module may include a light emitting diode part disposed along a passage of air to provide ultraviolet light, and a filter part disposed adjacent to the light emitting diode part..
Seoul Viosys Co., Ltd.

new patent

Optical vital signs sensor

An optical vital signs sensor comprises a light source (110) having alight unit (111, 112) generating light which is directed towards a skin (1000) of a user, at least one photo detector unit (120) having a plurality of photo diodes (121-12n) detecting light from the skin (1000), and an adjusting unit (140, 150) configured to adjust an effective distance which the light travels between the light unit (111, 112) and the photo diode (12-12n).. .
Koninklijke Philips N.v.

new patent

Intracorporeal transillumination of tissue using led array

A device which illuminates internal tissue and organs of a patient is described. The illumination member includes an array of light-emitting diodes (“leds”).

Facilitating improved luminance uniformity in organic light emitting diode device panels

An apparatus facilitating luminosity uniformity across an organic light emitting diode (oled) device is provided. In one embodiment, the method includes: operating an organic light emitting diode (oled) device including an anode; a semiconductor material coupled to the anode; and a cathode coupled to the semiconductor material.
City University Of Hong Kong

Temperature compensation in optical sensing system

A temperature compensation circuit for a light source (e.g., light emitting diode (led)) whose radiant energy output decreases when ambient temperature increases includes a first circuit element for generating a first current that increases proportional to an increase in the ambient temperature, and a second circuit element for generating a second current that is first order independent of the ambient temperature. The circuit further includes a weighted current adder for generating a third current by combining the first and second currents with first and second weights applied to the first and second currents respectively.
Tt Electronics Plc

Backlight unit using multi-cell light emitting diode

A backlight unit includes a backlight module with a printed circuit board including blocks and mjt leds disposed on the blocks, respectively and a backlight control module generating a signal for drive control of each of the blocks, wherein each of the blocks comprises at least one mjt led, and the backlight control module includes a drive controller for on/off control and dimming control of each of the blocks.. .
Seoul Semiconductor Co., Ltd.

Systems and methods for detecting light-emitting diode without flickering

An image sensor for detecting light-emitting diode (led) without flickering includes a pixel array with pixels. Each pixel including subpixels including a first and a second subpixel, dual floating diffusion (dfd) transistor, and a capacitor coupled to the dfd transistor.
Omnivision Technologies, Inc.

Quantum random pulse generator

Provided is a quantum random pulse generator having enhanced security using a phenomenon in which a radioactive isotope naturally collapses. The quantum random pulse generator includes a photodiode detection unit which has a photodiode disposed at the center of the photodiode detection unit on a top surface, a radioactive isotope emission unit which emits alpha particles discharged when an atomic nucleus naturally collapses toward a photodiode, and a plate which is disposed on a top surface of the radioactive isotope emission unit and supports the radioactive isotope emission unit.
Eyl Inc.

Logic circuit, semiconductor device, electronic component, and electronic device

A drive capability of a dynamic logic circuit is improved. A logic circuit includes a dynamic logic circuit, a first output node, a first transistor that is diode-connected, and a capacitor.
Semiconductor Energy Laboratory Co., Ltd.

Electric power conversion circuit including switches and bootstrap circuits, and electric power transmission system including electric power conversion circuit

An electric power conversion circuit includes: first through fourth port terminals; a first diode having an anode connected to the first port terminal; a second diode having a cathode connected to the second port terminal; a third diode having a cathode connected to the first port terminal; a fourth diode having an anode connected to the second port terminal; first through fourth switches that are bridge-connected between a cathode of the first diode and an anode of the second diode; fifth through eighth switches that are bridge-connected between an anode of the third diode and a cathode of the fourth diode; a first bootstrap circuit that is connected to control terminals of the first through fourth switches; and a second bootstrap circuit that is connected to control terminals of the fifth through eighth switches.. .
Panasonic Intellectual Property Management Co., Ltd.

Electric power conversion circuit including switches and bootstrap circuits, and electric power transmission system including electric power conversion circuit

An electric power conversion circuit includes: first through fourth port terminals; first through fourth switches that are connected with each other in a bridge configuration; fifth through eighth switches that are respectively connected in parallel with the first through fourth switches; first through eighth diodes that are respectively connected in series with the first through eighth switches; a first bootstrap circuit that is connected to control terminals of the first, second, fourth, and sixth switches; and a second bootstrap circuit that is connected to control terminals of the third, fifth, seventh, and eighth switches.. .
Panasonic Intellectual Property Management Co., Ltd.

Power converters

A dc/dc power converter connected to a dc power source/load having first and second dc terminals. The dc/dc power converter operates in voltage step-up and step-down modes.
Ge Energy Power Conversion Technology Ltd

Capacitor discharge circuit

A capacitor discharge circuit according to one or more embodiments includes a capacitor connected in parallel to an alternating-current power source; a rectification element; a first discharge circuit that includes a first diode and a second diode, and causes the capacitor to discharge; a first series circuit including a first capacitor and a second capacitor connected in series between one end of the alternating-current power source and a ground terminal of the rectification element; a second discharge circuit that causes the second capacitor to discharge such that an absolute value of voltage across opposite ends of the second capacitor does not reach a predetermined voltage; and a predetermined period generator that actuates the first discharge circuit after an elapse of a predetermined period of time from stoppage of a discharge operation of the second discharge circuit.. .
Sanken Electric Co., Ltd.

Semiconductor device

The semiconductor device includes a power supply wiring, a ground wiring, an input circuit coupled between the power supply wiring and the ground wiring, an input pad which is coupled with the input circuit and to which a negative voltage lower than a voltage supplied to the ground wiring can be inputted, a plurality of first diodes provided between the ground wiring and the input pad, and a second diode provided between the input pad and the power supply wiring. A reverse bias breakdown voltage of the second diode is greater than a reverse bias breakdown voltage of each of the first diodes..

Stackable electrically-isolated diode-laser bar assembly

A diode-laser bar assembly comprises a diode-laser bar mounted onto a cooler by way of an electrically-insulating submount. A laminated connector is provided that includes two electrically-conducting sheets bonded to opposite sides on an electrically-insulating sheet.
Coherent, Inc.

Laser beam amplification by homogenous pumping of an amplification medium

Apparatus and method for the amplification of a laser beam by pumping a homogenous composite source beam through an amplification medium. A slab crystalline active medium is side-pumped via a pump module having a laser diode bar and an optical assembly.
Rofin-sinar Uk Ltd

Organic light emitting diode display

An organic light emitting diode display including: a plurality of pixels on a substrate; an encapsulation substrate facing the substrate; a color filter on one surface of the encapsulation substrate facing the substrate and including a red filter, a green filter, and a blue filter; and an overcoat layer including a first region covering the red filter, a second region covering the green filter, and a third region covering the blue filter. At least one of the first region, the second region, and the third region has an optimized refractive index and/or an optimized thickness..
Samsung Display Co., Ltd.

Method for manufacturing light extraction substrate for organic light emitting diode, light extraction substrate for organic light emitting diode, and organic light emitting diode comprising same

The present invention relates to a method for manufacturing a light extraction substrate for an organic light emitting diode, a light extraction substrate for an organic light emitting diode, and an organic light emitting diode comprising same, and more specifically, to a method for manufacturing a light extraction substrate for an organic light emitting diode, a light extraction substrate for an organic light emitting diode, and an organic light emitting diode comprising same, the method capable of complicating or diversifying the path of a light that is emitted by forming cracks on a matrix layer that can induce scattering of the light emitted from the organic light emitting diode, thereby further improving light extraction efficiency of the organic light emitting diode. To this end, provided in the present invention is the method for manufacturing the light extraction substrate for the organic light emitting diode, comprising: a mixture-preparing step of preparing a mixture by mixing a sol-gel solution containing a first metal oxide, and a plurality of scattering particles composed of a second metal oxide having a refractive index different from that of the first metal oxide; a mixture coating step of coating the mixture on a base substrate; and a mixture firing step of firing the mixture which has been coated to form, on the base substrate, the matrix layer comprising the first metal oxide and inside of which the scattering particles are dispersed, wherein in the mixture firing step, cracks that can induce scattering of the light emitted from the light emitting diode are formed on the matrix layer due to the difference in the coefficient of thermal expression (cte) of the base substrate and the first metal oxide..
Corning Precision Materials Co., Ltd.

Flexible display device

A flexible display device includes a base substrate defining a display area and a non-display area; a thin film transistor in the display area of the base substrate; an organic light emitting diode on and connected with the thin film transistor; an encapsulation layer on the organic light emitting diode; and a crack preventing portion in the non-display area defined by the base substrate.. .
Lg Display Co., Ltd.

Organic light emitting diode comprising an organic semiconductor layer

The present invention relates to an organic light emitting diode including an anode electrode, a cathode electrode, at least one emission layer and at least one organic semiconductor layer, wherein the at least one emission layer and the at least one organic semiconductor layer are arranged between the anode electrode and the cathode electrode and the organic semiconductor layer includes a substantially metallic rare earth metal dopant and a first matrix compound, the first matrix compound including at least two phenanthrolinyl groups as well as to a method for preparing the same.. .
Novaled Gmbh

Organic light-emitting diode (oled) display panel, fabrication method and electronic device thereof

R′ is selected from any one of a substituted aryl group and a substituted heteroaryl group, and a substituent in the substituted aryl group and a substituent in the substituted heteroaryl group each includes at least one electron acceptor group.. .

Flexible organic light emitting display panel

Disclosed is a flexible organic light emitting display panel in which an upper substrate is larger in size than a lower substrate including a pad area. The flexible organic light emitting display panel includes, for example, a lower substrate, including a flexible lower base film and an organic light emitting diode (oled) included in the flexible lower base film, and an upper substrate including a flexible upper base film and a multi-buffer which is coated on the flexible upper base film for preventing penetration of water..
Lg Display Co., Ltd.

Organic light emitting diode comprising an organic semiconductor layer

The present invention relates to organic light-emitting diodes that include an anode electrode, a transparent cathode electrode, at least one emission layer and at least one organic semiconductor layer, wherein the at least one emission layer and the at least one organic semiconductor layer is arranged between the anode electrode and the transparent cathode electrode and the organic semiconductor layer includes a first zero-valent metal dopant and a first matrix compound wherein the first matrix comprising at least two phenanthrolinyl groups as well as to a method for manufacturing the same.. .
Novaled Gmbh

Compound for organic optoelectronic device, composition for organic optoelectronic device, and organic optoelectronic device and display device comprising same

The present invention relates to: a compound for an organic optoelectronic diode, represented by chemical formula 1; an organic optoelectronic diode comprising same; and a display device comprising the organic optoelectronic diode. The details of the chemical formula 1 are shown in the description..
Samsung Sdi Co., Ltd.

Organic compound and light emitting diode and organic light emitting diode display device using the same

This organic compound has the advantages in the thermal stability, the emission property, the color purity, the hole transport property and the hole movement property, and thus the lifetime, the emission efficiency and the emission property of the led using the same are improved.. .

Light emitting diodes and associated methods of manufacturing

Light emitting diodes and associated methods of manufacturing are disclosed herein. In one embodiment, a light emitting diode (led) includes a substrate, a semiconductor material carried by the substrate, and an active region proximate to the semiconductor material.
Micron Technology, Inc.

Light-emitting diode

A light-emitting diode having a stack-like structure, whereby the stack-like structure comprises a substrate layer and a mirror layer and an n-doped bottom cladding layer and an active layer, producing electromagnetic radiation, and a p-doped top cladding layer and an n-doped current spreading layer, and the aforementioned layers are arranged in the indicated sequence. The active layer comprises a quantum well structure.
Azur Space Solar Power Gmbh

Iii-nitride nanowire led with strain modified surface active region and making thereof

A light emitting diode (led) device includes a semiconductor nanowire core, and an in(al)gan active region quantum well shell located radially around the semiconductor nanowire core. The active quantum well shell contains indium rich regions having at least 5 atomic percent higher indium content than indium poor regions in the same shell.
Glo Ab

Schottky barrier diode and electronic apparatus

A schottky barrier diode includes a graphene nanoribbon, a first electrode connected to one end of the graphene nanoribbon, and a second electrode connected to the other end of the graphene nanoribbon. The graphene nanoribbon includes a first part and a second part which are connected in the length direction of the graphene nanoribbon and which differ in electronic state.
Fujitsu Limited

Imaging device and manufacturing the same

A groove-type through hole passing through a silicon layer and a first interlayer insulating film is formed in a region around a chip formation region including a photodiode. In the groove-type through hole, a wall-like wall-type conductive pass-through portion corresponding to the groove-type through hole is formed.
Renesas Electronics Corporation

Three-layer stacked image sensor

An image sensor may include a lower device that includes logic transistors, an intermediate device that is formed over the lower device and includes a correlated double sampling (cds) circuit and a capacitor, and an upper device that is formed over the intermediate device and includes a photodiode, a floating diffusion region, and a transfer gate electrode.. .
Sk Hynix Inc.

Pixel with spacer layer covering photodiode

A semiconductor device is provided. The semiconductor device includes a semiconductor substrate.
Taiwan Semiconductor Manufacturing Co., Ltd.

Graded-semiconductor image sensor

An image sensor includes a semiconductor material having an illuminated surface and a non-illuminated surface. A plurality of photodiodes is disposed in the semiconductor material to receive image light through the illuminated surface.
Omnivision Technologies, Inc.

Method for forming a pn junction and associated semiconductor device

A method can be used to make a semiconductor device. A number of projecting regions are formed over a first semiconductor layer that has a first conductivity type.
Stmicroelectronics (rousset) Sas

Low dynamic resistance low capacitance diodes

A low dynamic resistance, low capacitance diode of a semiconductor device includes a heavily-doped n-type substrate. A lightly-doped n-type layer 1 micron to 5 microns thick is disposed on the n-type substrate.
Texas Instruments Incorporated

Through via extending through a group iii-v layer

A process for manufacturing an integrated circuit (ic) with a through via extending through a group iii-v layer to a diode is provided. An etch is performed through the group iii-v layer, into a semiconductor substrate underlying the group iii-v layer, to form a via opening.
Taiwan Semiconductor Manufacturing Co., Ltd.

Electric power conversion circuit including switches and bootstrap circuits, and electric power transmission system including electric power conversion circuit

An electric power conversion circuit includes: first and second input terminals; first and second output terminals; first and third switches connected to the first output terminal; second and fourth switches connected to the second output terminal; first through fourth diodes that are bridge-connected between the first and second switches; fifth through eighth diodes that are bridge-connected between the third and fourth switches; a first bootstrap circuit that is connected to control terminals of the second and fourth switches; and a second bootstrap circuit that is connected to control terminals of the first and third switches.. .
Panasonic Intellectual Property Management Co., Ltd.

Display apparatus and fabricating method thereof

A display apparatus and a fabricating method thereof are provided. The display apparatus includes a substrate, a light emitting diode, a first bump, a first insulating layer and a second insulating layer.
Advanced Optoelectronic Technology Inc.

Pickup and placing device and operation picking and placing by pickup and placing device

The current disclosure provides a pickup and placing device including a control element, a substrate and a pickup structure. The substrate has an upper surface and a lower surface opposite to each other and a plurality of conductive via structures, wherein the conductive via structures are electrically connected to the control element.
Innolux Corporation

Solid-state impedance matching systems including a hybrid tuning network with a switchable coarse tuning network and a varactor fine tuning network

An evc including coarse and fine tuning networks. The coarse tuning network includes a circuit: receiving a rf input signal from a rf generator; outputting a rf output signal to a reference terminal or load; and receiving a dc bias voltage.
Mks Instruments, Inc.

Triaxial mineral insulated cable in flame sensing applications

An apparatus and method for flame sensing within a turbine. A sensor assembly, an electrical assembly and a cable assembly extending therebetween.
General Electric Company

Organic light emitting diode display and driving the same

An organic light emitting diode (oled) display is discussed. The oled display is capable of duty driving for controlling an emission duty of an oled in one frame.
Lg Display Co., Ltd.

Pixel unit and display apparatus having the pixel unit

A pixel unit includes a first organic light emitting diode for a front-side emission, a second organic light emitting diode for a back-side (both-sides) emission, and a pixel circuit configured to driver the first and second organic light emitting diodes. The pixel unit pu may include a pixel circuit, a first organic light emitting diode and a second organic light emitting diode..
Samsung Display Co., Ltd.

Pixel driving circuit and display appratus thereof

A display apparatus includes a plurality of pixel units. Each pixel unit is driven by a pixel driving circuit.
Hon Hai Precision Industry Co., Ltd.

Organic light emitting display device

The present disclosure relates to an organic light emitting display device which is implemented to reduce or suppress the residual image and the flicker. According to an embodiment, a circuit includes an organic light emitting diode disposed between a first node and a first power source, a driving transistor disposed between the first node and a second power source and driving the organic light emitting device, a first transistor transmitting a data signal to the driving transistor, and a first control transistor disposed between the first node and a second node.
Lg Display Co., Ltd.

Systems and methods for providing redundant data and power

A display system including a plurality of light-emitting diode (led) display modules is provided. Each led display module of the plurality of display modules may include a plurality of leds.
Anthem Displays, Llc

Active matrix organic light-emitting diode display device and driving the same

A method for driving an active matrix organic light-emitting diode (amoled) display. The method may be used to digitally drive the amoled display in a way that limits the susceptibility of the amoled display to certain problems arising out of digital driving techniques, such as image sticking or low display lifetimes.

Lighting assembly with multiple lighting units

A lighting assembly includes an assembly body. A first lighting unit is attached to the assembly body.
Ultravision Technologies, Llc

Device for generating images and head-up display of automotive vehicle

The subject of the invention is a device for generating images (10) for automotive vehicle head-up display (100), comprising a liquid crystal screen (12) and a back-lighting device (14), said back-lighting device (14) comprising: at least one light-emitting diode (16), a housing (28; 29) surrounding the space lying between the at least one light-emitting diode (16) and the liquid crystal screen (12), characterized in that said housing (28; 29) is bent, the device for generating images (10) furthermore comprising a reflecting surface (31; 32) arranged in a bent portion (28c; 29c) of the housing (28; 29) and oriented in such a way as to reflect the light emitted by the at least one light-emitting diode (16) in the direction of the screen (12). The invention also relates to a head-up display (100)..
Valeo Comfort And Driving Assistance

Air cooled array and system for cooling light emitting diode systems

An air-cooled high intensity led light system includes an air-cooled led array coupled to a blower device via a conduit. Each segment of the array includes a radiator thermally coupled to the led elements to transfer heat from the led elements to the environment.
Air Motion Systems, Inc.

Recessed light-emitting diode lighting fixture

A recessed lighting fixture comprises a generally annular body having a central cavity in the form of a partially spherical socket. There is a lighting support member having a partially spherical exterior portion which is closely fitted within the partially spherical socket of the annular body.

Narrow angle light engine

A light engine includes a housing containing a rectangular aperture, a polarizer disposed in the housing facing the aperture, a light emitting diode (led) array disposed in the housing, and a light guide configured to guide light emitted from the led array toward the aperture, such that light is emitted through the aperture.. .
Glo Ab

High intensity marine led strobe and torch light

A submersible light fixture including an outer casing with a window and a housing, the outer casing being sealed for operation underwater, an led array within the outer casing behind the window including a plurality of light-emitting diodes, and a driver within the outer casing including a microprocessor, at least one capacitor, a charging circuit, and discharging circuit. The charging circuit charges the at least one capacitor to a voltage of at least two times a forward voltage of the led array.

Lighting module and lighting lamp

The present disclosure discloses a lighting module including a light source module, a driving module, and an optical element and a lighting lamp. The light source module includes a light source plate and a plurality of light-emitting diode (led) light sources.
Opple Lighting Co., Ltd.

Light engine for ac and dc driver architectures for led lamps

A light engine includes a first plurality of diodes coupled in series. The first plurality of diodes includes a first anode end and a first cathode end.
Elumigen Llc

Light emitting diode (led) lamp with top-emitting leds mounted on a plannar pc board

Led lamp 10 includes a housing, a mounting base, a light engine (le) 16, light-transmissive cover 20 circumscribing the le, and reflector 18. The le comprises a plurality of top-emitting led packages (te-led packages) mounted on planar upper surface 32 of pc board 26, each configured to emit light having an angular distribution centered around a principal light-emitting direction (pled) normal to an emission face 45.
Ledvance Llc

Organic light-emitting diode with high efficiency and long lifetime

The present invention relates to an organic light-emitting diode exhibiting high efficiency and longevity. The organic light-emitting diode comprises: a first electrode; a second electrode facing the first electrode; and a light-emitting layer interposed between the first electrode and the second electrode, wherein the light-emitting layer contains at least one of the amine compounds represented by chemical formula a or chemical formula b and at least one of the compounds represented by chemical formulas h1 to h7, chemical formulas a, b, and h1 to h7 being the same as in the specification..
Sfc Co., Ltd.

System providing lighting to vehicle wheel spinners and covers

Light emitting diode (led) illumination is provided to various aspects of vehicle wheels, including wheel covers and wheel spinners. Unlike after-market add-on illumination, the wheel covers and wheel spinners described herein are built into and integrated with the wheel covers and wheel spinners, providing safe and effective illumination for the user.

Non-invasive medical analysis based on ts fuzzy control

The proposed method use monte carlo simulation in order to measuring the path-length of photon in different tissues. We develop a modified monte carlo algorithm based on ts fuzzy model.

Illuminating footwear assembly

An illuminating footwear assembly directs a beam of light from the toe and heel portions of a shoe while being donned by a shoe wearer. The assembly provides a pair of shoes that include a sole portion, an upper portion, a toe portion, and a heel portion.

Adapter extending capabilities of remote control and lifi to installations of devices including light-emitting diode-based luminaires

An adapter for connection between a luminaire and a power input for powering the luminaire comprises circuitry for modulating light output of the luminaire to contain information, or circuitry for connection to a network so that signals associated with the luminaire are communicated on the network. The adapter is placed between the luminaire and a power input for the luminaire.
Basic6, Inc.

Lighting system built-in intelligence

The present invention provides a method for minimizing a ripple current and turning the light emitting diode (led) off rapidly in order to maximize the efficiency of a light emitting diode array. To achieve this, a set of dual drain field effect transistor circuit is included with a light emitting diode array and a filter capacitor, wherein the led current and the filter capacitor current are interrupted through a common source i.e.
Lunera Lighting, Inc.

Dimming module, dimming method and lighting device

A dimming module includes a triggering circuit, a control signal generating circuit, a voltage converting circuit, and a linear driving circuit. The triggering circuit is configured to control a trigger delay angle of an ac input voltage according to a dimming command, in order to output a first voltage signal correspondingly.
Lextar Electronics Corporation

Programmable and adaptable interface for dimming light emitting diodes

Described herein is an apparatus including, a decoder that is configured to decode a digital control code. The digital control code corresponds to an intensity level control code of a plurality of leds.
Avago Technologies General Ip (singapore) Pte. Ltd.

Dual mode light emitting diode (led) driver

Described herein is a device comprising circuitry configured to determine, based on an input signal level, one of a first mode of operation and a second mode of operation for a light-emitting-diode (led) driver. The circuitry activates a loop-filter associated with the first mode of operation of the led driver in response to the input signal level being below a predetermined threshold.
Avago Technologies General Ip (singapore) Pte. Ltd.

Multi-channel led driver with overheating protection capabilities

An apparatus to drive a multi-channel light emitting diode (led) array includes switching transistors connected to led strings of the multi-channel led array, error amplifiers connected to the switching transistors, each of the error amplifiers being configured to control current flowing through the led string to have a target magnitude, and overheating protection circuits connected to the switching transistors, each of the overheating protection circuits being configured to regulate current flowing through a respective switching transistor to have a magnitude less than or equal to the target magnitude.. .
Magnachip Semiconductor, Ltd.

Pinned photodiode pixels including current mirror-based background light suppression, and imaging devices including the same

An imaging device includes a focal plane array of demodulation pixel cells. Each of the demodulation pixel cells includes a pinned photodiode, demodulation gates operable to demodulate optical signals sensed by the pinned photodiode and to transfer accumulated photo-charges to a respective one of a multitude of sense nodes, a readout circuit operable selectively to read out signals from the sense nodes, and a background light suppression circuit including cross-coupled current mirrors..
Heptagon Micro Optics Pte. Ltd.

Solid-state imaging device, manufacturing solid-state imaging device, and electronic apparatus

A solid-state imaging device (1-1) includes: a photodiode (pd) as a photoelectric conversion unit; a transfer gate (tg) that reads out charges from the photodiode (pd); a floating diffusion (fd) from which the charges of the photodiode (pd) are read by an operation of the transfer gate (tg); and an amplifying transistor (tr3) connected to the floating diffusion (fd). More particularly, the amplifying transistor (tr3) is of a fully-depleted type.

Imaging systems with global shutter phase detection pixels

An image sensor may include a pixel array with global shutter phase detection pixels. The global shutter phase detection pixels may include global shutter charge storage regions.
Semiconductor Components Industries, Llc

Optically powered transducer module

A sensor assembly comprises a remote data concentrator (rdc) and an optically powered transducer module (optm). The rdc transmits a first optical pulse including a parameter request signal along an optical fiber.
Rosemount Aerospace Inc.

Second order harmonic cancellation for radio frequency front-end switches

A radio frequency switch circuit with improved harmonic suppression and low insertion loss has an antenna port and a plurality of signal ports. A plurality of transistor switch circuits, are connected to a respective one of the plurality of signal ports and to the antenna port.
Skyworks Solutions, Inc.

Electric assembly including a reverse conducting switching device and a rectifying device

An electric assembly includes a reverse conducting switching device and a rectifying device. The reverse conducting switching device includes transistor cells for desaturation configured to be, under reverse bias, turned on in a desaturation mode and to be turned off in a saturation mode.
Infineon Technologies Ag

High voltage power system with enable control

Disclosed is a high voltage power system with enable control, comprising a high voltage start-up circuit, a pwm control module, and a driving module; the high voltage start-up circuit comprises a first transistor, a third transistor, a fourth transistor, a resistor, a diode, a vdd detection unit and an i/o interface unit; the high voltage start-up circuit is controlled by an input of a pin en; when the pin en is set, the high voltage start-up circuit stops working; the power system is shut off and doesn't restart, and enters a zero standby state; when the pin en is reset, the high voltage start-up circuit restores to work, and the power system restarts and enters a normal working state. The power system having the high voltage start-up circuit with enable control has characteristics that the standby input power consumption and standby input current are both close to zero..
Wuxi Chipown Micro-electronics Limited

Method and system for a feedback transimpedance amplifier with sub-40khz low-frequency cutoff

A system for a differential trans-impedance amplifier circuit comprising: an amplifier having a pair of input nodes and configured to generate an amplified replica of a differential voltage on said pair of input nodes; a photodiode; a pair of dc-blocking capacitors coupling said photodiode to said pair of input nodes; at least one resistance coupled between said pair of input nodes of said amplifier; and a bias network comprising two identical photodiode biasing resistances each photodiode biasing resistance coupled in series between said photodiode and a respective dc voltage. A feedback loop for the amplifier may include source followers that are operable to level shift voltages prior to coupling capacitors that couple said photodiode to said amplifier to ensure stable bias conditions for said amplifier.
Luxtera, Inc.

Solar cell testing apparatus and solar cell testing method

A solar cell testing apparatus is provided that tests bypass diodes in a solar cell string constructed by connecting a plurality of solar cell modules, which include solar cells and the bypass diodes, in series for failures in the open position. The solar cell testing apparatus includes a unidirectional element that is connected between a positive electrode and a negative electrode of the solar cell string, and a voltage applier that applies a test voltage across the positive electrode and the negative electrode of the solar cell string to which the unidirectional element is connected.
Hioki Denki Kabushiki Kaisha

Device overvoltage detector

A semiconductor device, overvoltage detection structure is described that includes a current path including a zener diode connected in series with a fuse. The zener diode is configured to conduct a current in response to an overvoltage condition at a semiconductor device and the fuse is configured to permanently break the current path of the overvoltage detection structure in response to the zener diode conducting the current..
Infineon Technologies Ag

Laser diode chip

A laser diode chip is described. In an embodiment the laser diode chip includes an n-type semiconductor region, a p-type semiconductor region and an active layer arranged between the n-type semiconductor region and the p-type semiconductor region, wherein the active layer is in the form of a single quantum well structure.
Osram Opto Semiconductors Gmbh

High-voltage pulse generator and gas laser apparatus

A high-voltage pulse generator may include a number “n” (n is a natural number of not less than 2) of primary electric circuits connected in parallel to one another on the primary side of a pulse transformer, and a secondary electric circuit of the pulse transformer, which is connected to a pair of discharge electrodes disposed in a laser chamber of a gas laser apparatus. The “n” primary electric circuits may include a number “n” of primary coils connected in parallel to one another, a number “n” of capacitors respectively connected in parallel to the “n” primary coils, and a number “n” of switches respectively connected in series to the “n” capacitors.
Gigaphoton Inc.

Organic light emitting diode structure and forming same

There is provided organic light emitting diode (oled) device that include an organic electroluminescent layer formed between a first electrode and a second electrode. The organic electroluminescent layer is formed of a photo-crosslinkable liquid having dichroic molecules therein, and has a grating pattern defined therein by exposure of regions of the organic electroluminescent layer to a light beam.
Lomox Limited

Organic light emitting diode

The present invention relates to an organic light emitting diode, and more specifically, to an organic light emitting diode capable of significantly increasing light extraction efficiency through optimization of a corrugated structure, which is formed by being transferred from an inner light extraction layer, thereby enabling excellent light-emitting efficiency. To this end, provided in the present invention is the organic light emitting diode comprising: a first substrate; the inner light emitting layer formed on the first substrate; a first electrode formed on the inner light emitting layer; an organic light emitting layer formed on the first electrode; and a second electrode formed on the organic light emitting layer, wherein corrugation is formed on the surface of the inner light emitting layer, wherein the corrugation is sequentially transferred onto the first electrode, the organic light emitting layer, and the second electrode, and wherein the surface of the second electrode comprises the corrugated structure, wherein the corrugated structure comprises a plurality of convex portions and a plurality of concave portions, which are formed between the convex portions that are adjacent, and wherein the depth/pitch ratio with respect to the pitch between the convex portions that are adjacent and the depth of the concave portions is 0.1 to 7..
Corning Precision Materials Co., Ltd.

Organic light emitting display device

Embodiments disclosed herein relate to a light emitting display device comprising a plurality of subpixels, the plurality of subpixels including at least a first subpixel and a second subpixel. The light emitting display device includes a common layer shared by a first light emitting diode of the first subpixel and a second light emitting diode of the second subpixel, the common layer disposed between a first anode electrode and a first cathode electrode of the first subpixel and between a second anode electrode and a second cathode electrode of the second subpixel, and an auxiliary electrode disposed on a different layer from the common layer, the first anode electrode, the first cathode electrode, the second anode electrode, and the second cathode electrode, the auxiliary electrode connected to the common layer through a contact hole..
Lg Display Co., Ltd.

Organic electroluminescent materials and devices

Tetradentate ligands with rigid backbone for use as phosphorescent emitters, and devices, such as organic light emitting diodes are disclosed.. .
Universal Display Corporation

Autonomous thermoelectric energy harvesting platform for biomedical sensors

Thermoelectric energy harvesting systems in accordance with embodiments of the invention enable energy harvesting. One embodiment includes a thermoelectric energy harvesting (teh) system comprising a teh comprising a thin-film array-based teh source; start-up mode circuitry comprising: an upper branch comprising: a mode switch configured to allow selection of the upper branch; an inductive-load ring oscillator (ilro); a charge pump configured to receive an input from the ilro and output current, where output current is utilized to charge an upper branch capacitor; a lower branch comprising: an inductor; an active diode configured to transfer energy stored in the inductor to an output capacitor; maximum-power-point tracking (mppt) mode circuitry, where the mppt loop comprises: a mode control unit; a gate controller; a clock generator configured to generate at least one control signal; an analog-domain mppt unit configured to receive the at least one generated control signal..
The Regents Of The University Of California

Formation and structure of post enhanced diodes for orientation control

Embodiments are related to systems and methods for fluidic assembly, and more particularly to diodes offering orientation control properties in a fluidic assembly system.. .
Sharp Laboratories Of America, Inc.

Ultraviolet light-emitting diode packaging structure

The present invention provides a packaging structure of ultraviolet light-emitting diodes, comprising: a substrate having an electrode; an uv led chip disposed on the substrate and electrically connected to the electrode; a transparent cap covering the substrate and the chip; an adhesive layer disposed between the substrate and the transparent cap; and a light reflective layer disposed between the adhesion layer and the transparent cap, wherein the transparent cap is fixed onto the substrate via the light reflective layer and the adhesion layer. And the light reflective layer of the case is made by metal, the adhesive layer is optional..
Unistars Corporation

Light emitting diode

A light emitting apparatus, including: a substrate; a light emitting diode disposed on the substrate; and a lens covering the light emitting diode. The light emitting diode includes a light emitting diode chip; a first molding portion covering the light emitting diode chip; a second molding portion covering the first molding portion.
Seoul Semiconductor Co., Ltd.

Fabrication casting graphene quantum dots on light-emitting diodes and structure thereof

The present invention provides a fabrication method for casting graphene quantum dots on leds and the structure thereof. A graphene and an ethanol are mixed uniformly.
Chung Yuan Christian University

Light-emitting device and manufacturing the same

A light-emitting diode package includes a frame portion with a chip-mounting region defined in an upper portion thereof, and first and second frames spaced apart from each other. A light-emitting diode is mounted on at least a portion of the chip-mounting region with a bonding layer interposed therebetween.
Seoul Viosys Co., Ltd.

Light emitting diode and light emitting diode array comprising same

Provided in one embodiment is a light emitting diode comprising: a light emitting structure including a first conductive semiconductor layer, an active layer on top of the first conductive semiconductor layer, and a second conductive semiconductor layer on top of the active layer; a first electrode arranged on a portion of the first conductive semiconductor layer; an insulating layer, which is arranged on a portion of the first electrode, the first conductive semiconductor layer, the active layer, and the second conductive semiconductor layer, and which has a dbr structure; and a second electrode arranged on the second conductive semiconductor layer, wherein the first electrode comes into contact with the insulating layer via a first surface and is exposed to the insulating layer via a second surface opposite the first surface.. .
Lg Innotek Co., Ltd.

Interlayer for light emitting diode device

The present invention is a light emitting diode (led) device including a substrate, a buffer layer, a first conductivity type semiconductor layer, a light emitting layer, an interlayer, an electron blocking layer, and a second conductivity type semiconductor layer. The thickness of the interlayer is substantially thinner than the thickness of the electron blocking layer.
Lextar Electronics Corporation

Light-emitting diode and a manufacturing the same

A method for manufacturing a light-emitting diode (led) is provided. The method includes following steps.
Genesis Photonics Inc.

Flip-chip multi-junction solar cell and fabrication method thereof

A flip-chip multi junction solar cell chip integrated with a bypass diode includes from up to bottom: a glass cover; a transparent bonding layer; a front electrode; an n/p photoelectric conversion layer; a p/n tunnel junction; a structure layer of the n/p bypass diode; a first backside electrode; a second backside electrode. The solar cell chip also includes at least a through hole extending through the n/p photoelectric conversion layer, the p/n tunnel junction and the structure layer of the n/p bypass diode.
Xiamen Sanan Optoelectronics Technology Co., Ltd.

Semiconductor device

A semiconductor device includes a semiconductor layer that has a transistor structure including a p type source region, a p type drain region, an n type body region between the p type source region and the p type drain region, and a gate electrode facing the n type body region and a voltage-regulator diode that is disposed at the semiconductor layer and that has an n type portion connected to the p type source region and a p type portion connected to the gate electrode, in which the transistor structure and the voltage-regulator diode are unified into a single-chip configuration.. .
Rohm Co., Ltd.

High-speed diode and manufacturing the same

A high-speed diode includes an n-type semiconductor layer and a p-type semiconductor layer which is laminated on the n-type semiconductor layer, where a pn junction is formed in a boundary portion between the n-type semiconductor layer and the p-type semiconductor layer, and crystal defects are formed such that the frequency of appearance is gradually decreased from the upper surface of the p-type semiconductor layer toward the bottom surface of the n-type semiconductor layer.. .
Rohm Co., Ltd.

Light emitting diodes (leds) with integrated cmos circuits

Disclosed is a multi-color semiconductor led display with integrated with cmos circuit components, such as thin film transistors (tfts). Leds of the display are disposed on a first major surface of a substrate while cmos circuit components which are configured as circuitry for operating the display are disposed on a second opposing major surface of the substrate.
Globalfoundries Inc.

Light emitting diodes (leds) with stacked multi-color pixels for displays

A color stacked light emitting diode (led) pixel is disclosed. The color stacked led includes an led pixel structure body, a base led disposed on at least a portion of the led pixel structure body, an intermediate led disposed on the base led, and a top led disposed on the intermediate led.
Globalfoundries Inc.

Solid-state imaging device and electronic apparatus

The present technology relates to a solid-state imaging device and an electronic apparatus that perform a stable overflow from a photodiode and prevent qs from decreasing and color mixing from occurring. A solid-state imaging device according to an aspect of the present technology includes, at a light receiving surface side of a semiconductor substrate, a charge retention part that generates and retains a charge in response to incident light, an ofd into which the charge saturated at the charge retention part is discharged, and a potential barrier that becomes a barrier of the charge that flows from the charge retention part to the ofd, the ofd including a low concentration ofd and a high concentration ofd having different impurity concentrations of the same type, and the high concentration ofd and the potential barrier being formed at a distance.
Sony Corporation

Method for manufacturing a solid state image sensor with pixels having photodiodes patterned through overlapping divided exposure

In a solid state image sensor which has two photodiodes juxtaposed in a predetermined direction in each pixel and is formed by carrying out divided exposure, that is, exposure treatment of an entire chip by a plurality of times of exposure, image quality is improved and autofocusing speed is increased. Provided is a solid state image sensor having a first exposure region having a first region and a second exposure region having a second region.
Renesas Electronics Corporation

Solid-state imaging device and electronic apparatus

A solid-state imaging device includes a layout in which one sharing unit includes an array of photodiodes of 2 pixels by 4×n pixels (where, n is a positive integer), respectively, in horizontal and vertical directions.. .
Sony Corporation

Single mask level including a resistor and a through-gate implant

A method of forming an ic includes providing a field dielectric in a portion of a semiconductor surface, a bipolar or schottky diode (bsd) class device area, a cmos transistor area, and a resistor area. A polysilicon layer is deposited to provide a polysilicon gate area for mos transistors in the cmos transistor area, over the bsd class device area, and over the field dielectric for providing a polysilicon resistor in the resistor area.
Texas Instruments Incorporated

Electrostatic discharge protection device for high voltage

A circuit for protecting against electrostatic discharge events has a semiconductor substrate (200) of first conductivity embedding a first diode in a well (260) of opposite second conductivity, the diode's anode (111) tied to an i/o pin-to-be-protected (101) at a first voltage, and the first diode's cathode (112) connected to the first drain (123) of a first mos transistor in the substrate. The first mos transistor's first gate (122) is biased to a second voltage smaller than the first voltage, thereby reducing the first voltage by the amount of the second voltage.
Texas Instruments Incorporated

Semiconductor integrated circuit device including an electrostatic discharge protection circuit

A semiconductor integrated circuit device having a first clamping circuit, a second clamping circuit, a third clamping circuit, a first path-changing line and a second path-changing line. The first clamping circuit may be connected between an input/output pad and a power pad.
Sk Hynix Inc.

Optoelectronic semiconductor chip and fabrication thereof

An optoelectronic semiconductor chip is disclosed. In an embodiment the optoelectronic semiconductor chip includes a first semiconductor layer sequence having a plurality of microdiodes, and a second semiconductor layer sequence having an active region.
Osram Opto Semiconductors Gmbh

Display device

Provided is a display device, which includes a substrate, a transistor, a capacitor and a light emitting unit. The transistor and the capacitor are disposed on the substrate.
Innolux Corporation

Glass articles with non-planar features and alkali-free glass elements

An electronic device assembly includes a backplane having a glass composition substantially free of alkali ions, an elastic modulus of about 40 gpa to about 100 gpa, and a final thickness from about 20 μm to about 100 μm. The primary surfaces of the backplane are characterized by a prior material removal to the final thickness from an initial thickness that is at least 20 μm greater than the final thickness.
Corning Incorporated

Semiconductor device, and display device and electronic device utilizing the same

A semiconductor device having a normal function means is provided, in which the amplitude of an output signal is prevented from being decreased even when a digital circuit using transistors having one conductivity is employed. By turning off a diode-connected transistor 101, the gate terminal of a first transistor 102 is brought into a floating state.
Semiconductor Energy Laboratory Co., Ltd.

Organic light-emitting diode display device and driving the same

Discussed herein are an oled display device and a method of driving the same. The oled display device includes according to an embodiment an organic light-emitting diode; a driving transistor involved in driving the organic light-emitting diode and including a bottom gate electrode, an oxide semiconductor layer, a source electrode, a drain electrode and a top gate electrode; a first switching transistor electrically connected to the bottom gate electrode of the driving transistor and involved in transmitting a data voltage to control the driving transistor; a storage capacitor electrically connected to the bottom gate electrode and involved in charging the data voltage; a second switching transistor configured to store a threshold voltage in the storage capacitor; a compensating transistor directly connected to the top gate electrode of the driving transistor to compensate for a deviation in the threshold voltage of the driving transistor; and a compensating capacitor disposed between the source electrode of the driving transistor and a source electrode of the compensating transistor and storing the threshold voltage therein..
Lg Display Co., Ltd.

Display apparatus and driving the same

A display apparatus includes a plurality of pixels. A pixel includes a first capacitor connected between a first voltage line receiving a first driving signal and a first node, a first transistor comprising a control electrode connected to the first node, a first electrode connected to a second voltage line receiving a first power source signal and a second electrode connected to a second node, an organic light emitting diode comprising an anode electrode connected to the second node and a cathode electrode receiving a second power source signal, a second capacitor connected between an m-th data line and the second node (wherein, ‘m’ is a natural number) and a second transistor comprising a control electrode connected to an n-th scan line (wherein, ‘n’ is a natural number), a first electrode connected to the first node and a second electrode connected to the second node..
Industry-university Cooperation Foundation Hanyang University

Display apparatus

The disclosure provides a display apparatus. The display apparatus of the disclosure includes a substrate having a plurality of pixel regions, a plurality of active elements, a plurality of first signal lines and second signal lines, a plurality of ground signal lines and a plurality of light emitting diodes (leds).
Innolux Corporation

Mobile device with a flexible organic light emitting diode (oled) multi-touch display

A mobile electronic device may have a flexible organic light emitting diode (oled) multi-touch display with a pixel layer and an adaptive layer. The adaptive layer may include a resizable display area capable of being made semi-transparent by the controller..
Hj Laboratories, Llc

Backlight unit and liquid crystal display including same

A backlight unit for a liquid crystal display device, the backlight unit including: an light emitting diode (“led”) light source; a light conversion layer disposed separate from the led light source to convert light emitted from the led light source to white light and to provide the white light to the liquid crystal panel; and a light guide panel disposed between the led light source and the light conversion layer, wherein the light conversion layer includes a semiconductor nanocrystal and a polymer matrix, and wherein the polymer matrix includes a first polymerized polymer of a first monomer including at least to two thiol (—sh) groups, each located at a terminal end of the first monomer, and a second monomer including at least two unsaturated carbon-carbon bonds, each located at a terminal end of the second monomer.. .
Samsung Electronics Co., Ltd.

Multi-channel parallel optical receiving device

The present disclosure provides a multi-channel parallel optical receiving device, including a carrier, a light receiving chip, a plurality of optoelectronic diodes disposed on a top surface of an end of the carrier, an optical fiber connector disposed in another end of the carrier, and an arrayed waveguide grating disposed on the top surface of the carrier. The plurality of optoelectronic diodes is electrically connected to the light receiving chip, and an input end of the arrayed waveguide grating is connected to the optical fiber connector for receiving an optical signal from the optical fiber.
Global Technology Inc.

Optical waveguide and lamp including same

An optical waveguide includes a body of optically transmissive material having a width substantially greater than an overall thickness thereof and including a first side, a second side opposite the first side, a central bore extending between the first and second sides and adapted to receive a light emitting diode, and extraction features on the second side. A light diverter extends into the central bore for diverting light into and generally along the width of the body of material.
Cree, Inc.

Organic light emitting diode device

An organic light emitting diode device includes an organic light emitting display panel and a circular polarizing plate which includes a polarizer and a compensation film including a liquid crystal layer which includes a first surface and a second surface, and liquid crystals that tilt obliquely with respect to an extension direction of the first and second surfaces of the liquid crystal layer where tilt angles of the liquid crystals with respect to the extension direction of the liquid crystal layer become gradually larger from the first surface to the second surface of the liquid crystal layer in a thickness direction of the liquid crystal layer, and a maximum tilt angle of the liquid crystals with respect to the extension direction of the liquid crystal layer is determined based on a thickness direction phase delay generated in a thickness direction of the organic light emitting display panel.. .
Samsung Electronics Co., Ltd.

Multiple-level driver circuit with non-commutating bridge

A multiple-level driver circuit, such as for providing several different signals to a device under test (dut) in an automated test system, can include multiple diode bridge circuits. In an example, a first diode bridge circuit is configured to receive a multiple-valued input voltage signal, having at least two different dc voltage signal levels, at an input node and, in response, to selectively provide a corresponding multiple-valued output voltage signal at an output node.
Analog Devices, Inc.

Photodiode-augmented infrared sensor

Methods and apparatus relating to a photodiode-augmented infrared (ir) motion sensor are provided. The ir motion sensor can be used to sense mid-ir range radiation emitting from a person.
Google Inc.

Quantum dot light emitting diodes for multiplex gas sensing

A gas detection device comprising a light emitting source including a first plurality of quantum dots of substantially discrete size and made of a semiconductor material a gas cell to contain the gas to be detected and a light detector.. .
Board Of Supervisors Of Louisiana State University And Agricultural And Mechanical College

Microtome

The preparation holding device of a microtome can be pivoted via a ball head. To pivot the preparation holding device, actuators are assigned to the latter as drives.

Broadband or mid-infrared fiber light sources

A super continuum light source includes an input light source having semiconductor diodes generating an input beam having a wavelength shorter than 2.5 microns. Optical amplifiers receive the input beam and form an amplified optical beam having a spectral width.
Omni Medsci, Inc.

Lens assembly for implementing low beam

A lens assembly for implementing a low beam may include: a first lens including an incident surface having a shape enclosing a light emitting diode (led), and an exit surface through which light of the led exits in a direction perpendicular to the exit surface; and a second lens disposed on the exit surface of the first lens and configured to project the light of the led that exits from the exit surface. The light of the led that is projected through the second lens may form a low-beam pattern..
Hyundai Mobis Co., Ltd.

Light emitting devices and light emitting bulbs including the same

Filament type light emitting devices are disclosed. One of the light emitting devices includes a non-conductive transparent substrate, one or more light emitting diode chips arrayed above the upper surface of the non-conductive transparent substrate and each including input and output ends extending toward the non-conductive transparent substrate, and conductive transparent connection portions formed on the upper surface of the non-conductive transparent substrate and electrically connected to the input and output ends.
Lumens Co., Ltd.

Lighting system having improved unidirectional intensity

A strip of a flexible plastic has a transparent cover surface which permits passage of light and an opposed bottom surface and sides which are opaque to passage of light. A series of spaced apart light emitting diodes are positioned on the top surface in electrical contact with a pair of spaced apart, generally parallel electrical wires running along the length of the top surface and individual electric bulbs are positioned on top of each light emitting diode.

System and enhancing driver situation awareness and environment perception around a transporation vehicle

A system for enhancing driver situation awareness and environment perception around a transportation vehicle. The system incorporates a plurality of object detecting sensors.
Spirited Eagle Enterprises, Llc

Portable rechargeable led red light cavity healing devices

A light-emitting diode (led) therapy device and method of use is provided that increases healing of tissues by targeting damaged tissue at a predetermined wavelength and pulsed at a predetermined frequency. The device includes a housing and a light radiation module enclosed within the housing.

Driving circuit and driving organic light emitting diode

The present invention relates to a driving circuit of organic light emitting diode comprising an electricity storage unit having a positive polarity at a first terminal and a negative polarity at a second terminal, and a signal input unit having opposite polarities at the first and second terminals, the signal polarity of the signal input unit being changed according to a preset frequency; a control unit, which causes the first terminal of the signal input unit to transmit negative charges to the anode of the organic light emitting diode and causes the second terminal of the signal input unit to transmit positive charges to the cathode of the organic light emitting diode, when the signal polarity at the first terminal of the signal input unit is negative and the signal polarity of the second terminal thereof is positive, and causes the first terminal of the electricity storage unit to transmit positive charges to the anode of the organic light emitting diode and causes the second terminal of the electricity storage unit to transmit negative charges to the cathode of the organic light emitting diode, when the signal polarity at the first terminal of the signal input unit is positive and the signal polarity of the second terminal thereof is negative. The embodiments of the application can make the cathode of the organic light emitting diode accumulate electrons during the non-excitation period, so that when the electricity storage unit drives the organic light emitting diode to emit light, more electrons can pass through the light emitting layer, so that the excitation subjected by the light emitting layer is improved and more light is emitted..
Beijing Boe Optoelectronics Technology Co., Ltd.

Image pixels having processed signal storage capabilities

An image sensor may include an array of image sensor pixels. Each image sensor pixel may have signal storage capabilities implemented through a write-back supply line and a control transistor for the supply line.
Semiconductor Components Industries, Llc

Method and reduced flicker visible light communications (vlc)

A visible light communication (vlc) device for lighting and data transmission is disclosed. The vlc device may comprise circuitry configured to receive a first stream of bits and determine a first switchpoint for transmitting the first stream of bits and first filler data.
Interdigital Patent Holdings, Inc.

Transceiver switch of radio frequency transceiver

A transceiver switch of a radio frequency transceiver is provided with a first diode and a second diode included in an electrostatic discharge circuit, which are connected in parallel along different directions to ground a positive (+) current or a negative (−) current generated from electrostatic charges. Another transceiver switch of a radio frequency transceiver is also provided with a resistor connected between a node connecting to an electrostatic discharge circuit and a ground terminal, to make the voltage of the node connecting to the electrostatic discharge circuit become a fixed dc potential connecting to the ground terminal..
Fci Inc.

Boost chopper circuit

In a boost chopper circuit, a backflow prevention diode circuit has a withstand voltage equal to or more than a withstand voltage of a capacitor circuit connected in series to the backflow prevention diode circuit between opposite ends of a switching device circuit.. .
Fuji Electric Co., Ltd.

Dc/dc converter

This invention is concerning a secondary side reflux circuit having a series circuit that is formed by connecting a secondary side reflux diode and a reflux reactor in series, the secondary side reflux circuit being provided on a secondary side of a dc/dc converter that subjects dc power from a dc power supply to dc/dc conversion and outputs the converted power to a load connected in series to a smoothing reactor connected to an output side of a rectifier circuit having a plurality of rectifying semiconductor switching elements. During a period in which a voltage from the dc power supply is not applied to a primary side of a transformer, the secondary side reflux circuit diverts a load current flowing through a load so as to return the load current to the load..
Mitsubishi Electric Corporation

Llc power converter and switching method thereof

In some embodiments, an inductor-inductor-capacitor (llc) converter includes a transformer having a primary winding, a secondary winding, and an auxiliary winding. The primary winding is coupled to a primary side circuit and the auxiliary winding has a first winding portion coupled between a first terminal and a middle terminal, and a second winding portion coupled between the middle terminal and a second terminal.
Infineon Technologies Austria Ag

Electric power converter

An electric power converter includes an inverter, an insulating transformer, and a rectifier. The inverter converts an input dc voltage, supplied from a dc power supply, to an ac voltage outputted at an ac output side of the inverter, and includes at least one semiconductor switching device made of wide bandgap semiconductor material configured to carry out turning-on and turning-off operations at a specified frequency to thereby invert the dc voltage to the ac voltage at the specified frequency; and at least one freewheeling diode made of silicon-based semiconductor material respectively connected to the at least one switching device in inverse parallel..
Fuji Electric Co., Ltd.

Boost chopper circuit

In a boost chopper circuit, a withstand voltage of at least one device of a switching device circuit is lower than a withstand voltage of a capacitor circuit connected in series to a backflow prevention diode circuit between opposite ends of the switching device circuit.. .
Fuji Electric Co., Ltd.

Power receiver circuit

Systems and techniques are provided for a power receiver circuit. A power generating mechanism may include power generating elements that may generate alternating current signals.
Ubeam Inc.

Semiconductor device

The semiconductor device includes a first and a second digital circuits, a first and a second ground potential lines respectively provided corresponding to the first and the second digital circuits, a first and a second analog circuits, a third and a fourth ground potential lines respectively provided corresponding to the first and the second analog circuits, a first bidirectional diode group provided between the first and the second ground potential lines, a second bidirectional diode group provided between the third and the fourth ground potential lines, and a third bidirectional diode group provided between the first and the third ground potential lines. The number of stages of bidirectional diodes of the third bidirectional diode group is greater than that included in each of the first and the second bidirectional diode groups..

Low voltage laser diodes on gallium and nitrogen containing substrates

A low voltage laser device having an active region configured for one or more selected wavelengths of light emissions.. .
Soraa Laser Diode, Inc.

Laser diodes with layer of graphene

According to an example of the present disclosure a semiconductor laser diode includes a layer of graphene between an active laser region and a semiconductor substrate structure. The semiconductor laser diode may further include a first pair of electrodes to apply a potential difference across the active laser region and a second pair of electrodes to apply a potential difference across the layer of graphene..
Hewlett Packard Enterprise Development Lp

Method for obtaining a laser diode

Method for obtaining a laser diode (1) with vertical mirrors, includes the steps of providing (100) a substrate (2) having optical layers (4, 6, 8); performing (102) a first dry etching of said substrate (2), so as to get two opposite transversal facets (10) having a predetermined depth, which represent the lateral walls of a cavity (12); cleaning (104) the bottom of said cavity (12); depositing (106) a coating layer (52) on the whole substrate (2); performing (108) a second etching, so as to free the bottom of the cavity (12) from the coating layer (52); performing (110) a third deep etching of the bottom of the cavity (12); and removing (112) the coating layer (52), so as to obtain said diode (1) with transversal mirrors (10).. .
Prima Electro S.p.a.

Organic light emitting diode

According to an embodiment of the present disclosure, an organic light emitting diode includes: a first electrode; a second electrode overlapping the first electrode; an emission layer positioned between the first electrode and the second electrode; an electron injection layer positioned between the emission layer and the second electrode; and an electron injection delay layer positioned between the emission layer and the electron injection layer, wherein the electron injection layer includes a first material made of a metal and a second material made of a metal halide, and the electron injection delay layer has a thickness of about 20 Å to about 140 Å.. .
Samsung Display Co., Ltd.

Organic light emitting diode display

An organic light emitting diode display is provided that may include a first substrate, a plurality of electrodes on the first substrate and spaced apart from each other, a pixel defining layer on the plurality of electrodes, spacers on the pixel defining layer, and a second substrate on the spacers. The pixel defining layer includes a plurality of openings spaced apart from each other and respectively open to the plurality of electrodes.
Samsung Display Co., Ltd.

Organic light emitting diode, manufacturing organic light emitting diode, and repairing organic light emitting diode

One embodiment of the present invention relates to an organic light emitting diode, a method for manufacturing an organic light emitting diode, and a method for repairing an organic light emitting diode, the light emitting diode comprising at least one exposed part on an upper electrode which exposes an organic layer or a lower electrode, wherein the light emitting diode effectively prevents performance deterioration or operation failure of the light emitting diode due to leakage current by removing an electrical passage in an area prone to short circuit flaws.. .
Lg Display Co., Ltd.

Organic light-emitting diode display

An organic light-emitting diode display is disclosed. In one aspect, the display includes a substrate, a scan line formed over the substrate and configured to provide a scan signal, and a data line crossing the scan line and configured to provide a data voltage.
Samsung Display Co., Ltd.

Organic electroluminescent materials and devices

Compounds comprising phosphorescent metal complexes comprising cyclometallated imidazo[1,2-f]phenanthridine and diimidazo[1,2-a:1′,2′-c]quinazoline ligands, or isoelectronic or benzannulated analogs thereof, are described. Organic light emitting diode devices comprising these compounds are also described..
Universal Display Corporation

Luminescent diazabenzimidazole carbene metal complexes

To organic electronic devices, especially oleds (organic light-emitting diodes) which comprise such complexes, to an apparatus selected from the group consisting of illuminating elements, stationary visual display units and mobile visual display units comprising such an oled, to the use of such a metal-carbene complex in oleds, for example as emitter, matrix material, charge transport material and/or charge or exciton blocker. .

Conjugated polymers

The invention relates to new conjugated semiconducting polymers containing thermally cleavable side groups. The thermally cleavable side groups are selected from among carbonate groups and carbamate groups, by thermally cleaving side groups, the solubility or the polymers can he reduced in a targeted manner.
Max-planck-gesellschaft Zur Foerderung Der Wissens Chaften E.v.

Self-gated rram cell and manufacturing the same

The present disclosure discloses a self-gated rram cell and a manufacturing method thereof; which belong to the field of microelectronic technology. The self-gated rram cell comprises: a stacked structure containing multiple layers of conductive lower electrodes; a vertical trench formed by etching the stacked structure; a m8xy6 gated layer formed on an inner wall and a bottom of the vertical trench; a resistance transition layer formed on a surface of the m8xy6, gated layer; and a conductive upper electrode formed on a surface of the resistance transition layer, the vertical trench being filled with the conductive upper electrode.
Institute Of Microelectronics, Chinese Academy Of Sciences

Light emitting diode

A light emitting diode including a first light emitting cell and a second light emitting cell separated from each other on a substrate, a first transparent electrode layer electrically connected to the first light emitting cell, an interconnection electrically connecting the first light emitting cell to the second light emitting cell, and a first insulation layer. The first transparent electrode layer is disposed on an upper surface of the first light emitting cell and partially covers a side surface of the first light emitting cell.
Seoul Viosys Co., Ltd.

Light emitting diode

A light emitting diode is disclosed. The light emitting diode includes: a plurality of light emitting cells including a first light emitting cell and a second light emitting cell spaced apart from each other on a single substrate; a continuous passivation layer formed over the upper surface and one facet of the first light emitting cell, the upper surface and the other facet of the second light emitting cell, and the substrate; and an interconnection layer formed on the passivation layer to electrically connect the first light emitting cell to the second light emitting cell.
Lumens Co., Ltd.

A lighting device having an optical lens formed on composite encapsulant comprising nanoparticles covering a light-emitting diode (led)

There is herein described a lighting device including a composite encapsulant and an optical component. The lighting devices include a first interface between the composite encapsulant and a light emitting surface of a light source, and a second interface between the composite encapsulant and the optical component.

Wavelength converting particle, manufacturing wavelength converting particle, and light emitting diode containing wavelength converting particle

Provided are a wavelength converting particle, a method for manufacturing a wavelength converting particle, and a light-emitting diode containing a wavelength converting particle. The wavelength converting particle comprises a hybrid oip nanocrystal that converts a wavelength of light generated by an excitation light source into a specified wavelength.
Postech Academy-industry Foundation

Display device

A display device is provided. The display device includes a substrate and a light-emitting diode.
Innolux Corporation

Semicondcutor light-emitting device and fabricating method thereof

A semiconductor light-emitting device including a light-emitting diode chip and an electrode disposed thereon is provided. The electrode at least includes a plated silver alloy (ag1-xyx) layer, wherein the y of the ag1-xyx layer includes metals forming a complete solid solution with ag at arbitrary weight percentage, and the x of the ag1-xyx layer is in a range from about 0.02 to 0.15.
Chipmos Technologies Inc.

Light emitting diode and fabrication method thereof

A light-emitting diode includes: an epitaxial-laminated layer having from bottom up: an n-type ohmic contact layer, a first n-type transition layer, an n-type etching-stop layer, a second n-type transition layer, an n-type confinement layer, an active layer, a p-type confinement layer, a p-type transition layer and a p-type window layer; a p electrode on the upper surface of the p-type window layer; a metal bonding layer over the bottom surface of the n-type ohmic contact layer, wherein, the portion corresponding to the p electrode position extends upwards and passes through the n-type ohmic contact layer and the first n-type transition layer, till the n-type etching-stop layer, thereby forming a current distribution adjustment structure such that the injected current would not flow towards the epitaxial-laminated layer right below the p electrode; and a conductive substrate over the bottom surface of the metal bonding layer.. .
Xiamen Sanan Optoelectronics Technology Co., Ltd.

Metal nitride alloy contact for semiconductor

Systems and methods are provided that enable the production of semiconductor devices having a metal nitride layer in direct contact with a semiconductor layer to form a schottky diode, such as a tin gate on an algan/gan high electron mobility transistor (hemt). Metal nitrides offer exceptional thermal stability and a lower diffusion coefficient.
The Government Of The United States Of America, As Represented By The Secretary Of The Navy

Double-side oled display and manufacture method thereof

The disclosure discloses a double-side organic light-emitting diode (oled) display and a manufacture method thereof. The double-side oled display includes a substrate, an oled layer and a packaging layer overlapped in sequence; the oled layer includes a first display region and a second display region; the double-side oled display has a bending region, the bending region is applied to bend the double-side oled display inwards, to place the first display region and the second display region on two separate flat surfaces.
Wuhan China Star Optoelectronics Technology Co., Ltd.

Organic light emitting diode and light emitting device including the same

An organic light emitting diode includes a first electrode and a second electrode overlapping each other, an emission layer disposed between the first electrode and the second electrode, and a hole transport layer disposed between the first electrode and the emission layer, the hole transport layer having a refractive index in a range of 1.0 to 1.6, in which the organic light emitting diode has a microcavity structure between the first electrode and the second electrode.. .
Samsung Display Co., Ltd.

Nanophosphors-converted quantum photonic imagers and methods for making the same

An emissive solid state imager (ssi) comprised of a spatial array of digitally addressable multicolor micro pixels. Each pixel is a micro optical cavity comprising multiple photonic layers of blue-violet semiconductor light emitting diode.
Ostendo Technologies, Inc.

Physical layout and structure of rgbz pixel cell unit for rgbz image sensor

An image sensor is described having a pixel cell unit. The pixel cell unit has first, second and third transfer gate transistor gates on a semiconductor surface respectively coupled between first, second and third visible light photodiode regions and a first capacitance region.
Google Inc.

Image sensors with symmetrical imaging pixels

An image sensor may include a symmetrical imaging pixel with a floating diffusion region. The floating diffusion region may be formed in the center of the imaging pixel.
Semiconductor Components Industries, Llc

Solid-state imaging device

In this solid-state imaging device, the sameness of the potential distributions in pixels, in a region from a photodiode of a transfer transistor to a floating diffusion in a charge transfer path, is improved. The solid-state imaging device includes a first transfer transistor including a first photodiode, a first gate electrode, and a first floating diffusion, a second transfer transistor including a second photodiode, a second gate electrode, and a second floating diffusion, a third transfer transistor including a third photodiode, a third gate electrode, and a third floating diffusion, and a reset transistor including a diffusion layer, which is a source or drain region, and a reset gate.
Seiko Epson Corporation

Display apparatus and driving the same

A display apparatus includes a display and a controller. The display includes a plurality color sub-pixels, each including an organic light emitting diode and a driving transistor to drive the organic light emitting diode.
Samsung Display Co., Ltd.

Pixel and organic light emitting diode display using the same

A pixel and an organic light emitting diode (oled) display using the pixel are disclosed. The pixel includes a driving transistor for transmitting a driving current, an oled configured to receive a first portion of the driving current and a bypass transistor configured to receive a second portion of the driving current..
Samsung Display Co., Ltd.

Method of manufacturing connection structure connecting cathode electrode to auxiliary cathode electrode and organic light-emitting diode display device using the same

An organic light-emitting diode display device having an organic light-emitting diode having an anode electrode, an organic emission layer, and a cathode electrode is provided. The organic light-emitting diode display device includes a low potential source line configured to supply a low potential source voltage; and at least one auxiliary cathode electrode configured to connect the low potential source line to the cathode electrode.
Lg Display Co., Ltd.

Organic light-emitting diode display device

An oled display device includes an array of pixel units. Each pixel unit includes a pixel driving circuit and an oled.
Everdisplay Optronics (shanghai) Limited

Method of driving dual pixel of active matrix organic lighting emitting diode display

A pixel array includes a plurality of pixels. Each pixel has a first sub-pixel, a second sub-pixel, and a pair of third sub-pixels.
Chunghwa Picture Tubes, Ltd.

Organic light emitting diode display device and operating method thereof

An organic light emitting diode (oled) display device, comprises: a power supply unit configured to supply a voltage to an oled; and a control unit configured to control the power supply unit to supply a first minimum voltage for maintaining luminance corresponding to a brightness set value to the oled.. .
Lg Electronics Inc.





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