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Diode patents

      

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




new patent Light emitting diode light structures
A light emitting diode (led) light includes a bridge rectifier configured to be powered by an alternating current power source and to produce a rectified output. Control circuitry couples to the bridge rectifier and is configured to produce a shunt signal when the rectified output is less than a threshold voltage.
Austin Ip Partners


new patent Light emitting device and led light bulb
A light emitting device includes: a first white light source which includes n pieces of first white light emitting diodes and emits a first white light; and a second white light source which includes m pieces of second white light emitting diodes and a first resistance element electrically connected in series to the second white light emitting diodes and having a first resistance value, is electrically connected in parallel to the first white light source, and emits a second white light, the light emitting device emitting a mixed white light of the first white light and the second white light. The drive voltage of the first white light source is higher than a drive voltage of the second white light source, and a color temperature of the mixed white light is higher as a total luminous flux of the mixed white light is higher..
Phoenix Electric Co., Ltd.


new patent Global shutter image sensor pixels having improved shutter efficiency
An image sensor may be provided with an array of image sensor pixels formed on a substrate having front and back surfaces. Each pixel may have a photodiode that receives light through the back surface, a floating diffusion node, a charge transfer gate, and first and second reset transistor gates.
Semiconductor Components Industries, Llc


new patent Visible light communication device and driving method thereof
A visible light communication device includes a light-emitting unit, a switch-mode light-emitting diode (led) driver, a synthesizing circuit, and a path selection circuit. The switch-mode led driver provides a driving current for driving the light-emitting unit.
Industrial Technology Research Institute


new patent Method and system for reliable bootstrapping switches
Methods and systems for reliable bootstrapping switches may comprise sampling a received signal with a bootstrapping switch, where the bootstrapping switch comprises a switching metal-oxide semiconductor (mos) transistor having a pull-down path coupled to a gate terminal of the switching mos transistor, wherein: source terminals of both a diode-connected transistor and a second mos transistor are coupled to the gate terminal of the switching mos transistor; drain terminals of both the diode-connected transistor and the second mos transistor are coupled to a source terminal of a third mos transistor, the third mos transistor coupled in series with a fourth mos transistor; and a drain terminal of the fourth mos transistor is coupled to ground. The third and fourth mos transistors may be in series with the second mos transistor.
Maxlinear, Inc.


new patent Amplifier circuit with overshoot suppression
An amplifier circuit including an input amplifier, an output amplifier and a diode device is provided. The output amplifier is coupled to the input amplifier and outputting an output voltage.
Novatek Microelectronics Corp.


new patent Temperature-compensated rectifying component
A temperature-compensated rectifying component is configured to receive an input signal and comprises: a diode part, for rectifying the received input signal and providing a rectified output signal thereby, the diode part having an operational temperature; and a temperature compensation controller, configured to control a power dissipated by the diode part over a predetermined period of time, such that an average of the operational temperature over the predetermined period of time meets pre-set criteria. This may be used in a rf detector for generating a dc level from a rf input signal, which may form part of a control circuit for setting an amplitude of an rf potential for supplying to an electronic amplifier in an analytical instrument, such as an ion optical device..
Thermo Fisher Scientific (bremen) Gmbh


new patent Charge pump and switch control circuit
A charge pump includes: a first diode that is connected to a first node; a second diode that is connected to a second node; a pump capacitor that is connected to a third node to which the first diode and the second diode are connected; a power supply capacitor that is connected to the pump capacitor; a third diode that is connected between the pump capacitor and the power supply capacitor; and a zener diode that is connected in parallel to the third diode and the power supply capacitor. A power supply device decreases a ripple of an output current using a ripple reduction signal..
Fairchild Korea Semiconductor Ltd.


new patent Method to tune emission wavelength of wavelength tunable laser apparatus and laser apparatus
A method to tune an emission wavelength of a wavelength tunable laser apparatus is disclosed. The laser apparatus implements, in addition to a wavelength tunable laser diode (t-ld) integrating with a semiconductor optical amplifier (soa), a wavelength monitor including an etalon filter.
Sumitomo Electric Device Innovations, Inc.


new patent Ruby laser pumped ultrashort pulse laser
An apparatus and method are provided for producing an ultrashort pulsed output beam. A 694 nm pump beam from a first gan semiconductor laser diode pumped, q-switched ruby laser is directed into at least one amplifier that includes a broadband gain element doped with trivalent chromium ions (cr3+).
Wfk Lasers, Llc.


new patent

Light emitting diode and display device including the same

An exemplary embodiment of the present disclosure provides a light emitting diode including: a first electrode; a second electrode configured to overlap the first electrode; an emission layer between the first electrode and the second electrode; and an electron-injection layer between the emission layer and the first electrode, wherein the electron-injection layer includes a compound xin, in xin the subscript n is an integer which is in a range of 1 to 3, and x includes a lanthanide element.. .
Samsung Display Co., Ltd.

new patent

Multi-material led heat sinks

A number of variations may include a product that may include a first heat sink that may include a first face opposite a second face, a plurality of fins disposed on the second face, and a recess that may be defined by the first face; a second heat sink may be disposed within the recess and may have a third face opposite a fourth face wherein the fourth face may be disposed within the recess; and a light-emitting diode may be disposed on the fourth face of the second heat sink.. .
Gm Global Technology Operations Llc

new patent

Package structure for ultraviolet light-emitting diode

The present embodiment discloses a package structure for ultraviolet led, which comprises a substrate, an ultraviolet light-emitting diode (led), and an optical device. The wavelength of the light emitted by the ultraviolet led is between 200 and 400 nm.
Institute Of Nuclear Energy Research, Atomic Energy Council, Executive Yuan, R.o.c.

new patent

Micro-light-emitting diode device

A micro-light-emitting diode device includes a first semiconductor layer, an active layer, and a second semiconductor layer. The first semiconductor layer has a first bottom surface.
Au Optronics Corporation

new patent

Method of manufacturing a semiconductor device

Provided is a method of manufacturing a semiconductor device having a photodiode that has a shallow p-n junction and thus achieves high sensitivity to an ultraviolet ray, in which an oxide containing impurities at high concentration is deposited on the surface of the silicon substrate, and thereafter a diffusion region is formed to have a shallow junction by performing thermal diffusion of a rapid temperature change, with the use of a high-speed temperature rising and falling apparatus without using ion implantation into the silicon substrate.. .
Sii Semiconductor Corporation

new patent

Power semiconductor element and power semiconductor module using same

In a schottky barrier diode comprising silicon carbide: an active region includes a first semiconductor region of a first conductivity type configuring a first schottky junction having a plurality of linear patterns between a first electrode and the first semiconductor region and a second semiconductor region of a second conductivity type adjacent to the first schottky junction and connected to the first electrode; at the border of the active region and a periphery region, a second schottky junction comprising the first electrode and the first semiconductor region and having at least one annular pattern surrounding the linear patterns is provided and the second semiconductor region is adjacent to the second schottky junction and is connected to the first electrode; and the first and second schottky junctions are conductive parts and the second semiconductor region is a nonconductive part in a forward bias state.. .
Hitachi, Ltd.

new patent

Bidirectional zener diode

A bidirectional zener diode of the present invention includes a semiconductor substrate of a first conductivity type, a first electrode and a second electrode which are defined on the semiconductor substrate, and a plurality of diffusion regions of a second conductivity type, which are defined at intervals from one another on a surface portion of the semiconductor substrate, to define p-n junctions with the semiconductor substrate, and the plurality of diffusion regions include diode regions which are electrically connected to the first electrode and the second electrode, and pseudo-diode regions which are electrically isolated from the first electrode and the second electrode.. .
Rohm Co., Ltd.

new patent

Semi-floating gate fet

A semi-floating gate transistor is implemented as a vertical fet built on a silicon substrate, wherein the source, drain, and channel are vertically aligned, on top of one another. Current flow between the source and the drain is influenced by a control gate and a semi-floating gate.
Stmicroelectronics, Inc.

new patent

Power mosfet, an igbt, and a power diode

Super-junction mosfets by trench fill system requires void-free filling epitaxial growth. This may require alignment of plane orientations of trenches in a given direction.
Renesas Electronics Corporation

new patent

Metallization and its use in, in particular, an igbt or a diode

A vertical power semiconductor component includes a semiconductor chip, the semiconductor chip having a top main surface and a bottom main surface. Each of said top main surface and said bottom main surface is in a heat exchanging relationship with a top metallization layer and a bottom metallization each of which serving as a heat sink.
Infineon Technologies Ag

new patent

Organic light emitting display device

Provided is an organic light emitting display device including a base substrate, a pixel layer, a quantum dot layer, and a thin film encapsulation part. The pixel layer includes a plurality of organic light emitting diodes on the base substrate.
Samsung Display Co., Ltd.

new patent

Organic light emitting diode display, optical unit, and manufacturing optical unit

An organic light emitting diode display includes: a display module including a first organic light emitting diode to emit light with a first wavelength, a second organic light emitting diode to emit light with a second wavelength, and a third organic light emitting diode to emit light with a third wavelength; a phase difference layer including a first liquid crystal pattern on the first organic light emitting diode, and a second liquid crystal pattern on the second organic light emitting diode and the third organic light emitting diode; and a linear polarization layer on the phase difference layer.. .
Samsung Display Co., Ltd.

new patent

Memory devices and memory device forming methods

Some embodiments include memory devices having a wordline, a bitline, a memory element selectively configurable in one of three or more different resistive states, and a diode configured to allow a current to flow from the wordline through the memory element to the bitline responsive to a voltage being applied across the wordline and the bitline and to decrease the current if the voltage is increased or decreased. Some embodiments include memory devices having a wordline, a bitline, memory element selectively configurable in one of two or more different resistive states, a first diode configured to inhibit a first current from flowing from the bitline to the wordline responsive to a first voltage, and a second diode comprising a dielectric material and configured to allow a second current to flow from the wordline to the bitline responsive to a second voltage..
Micron Technology, Inc.

new patent

Dot matrix light-emitting diode light source for a wafer-level microdisplay and fabricating the same

A dot matrix light-emitting diode (led) backlighting light source for a wafer-level microdisplay includes a substrate, multiple led sets arranged at spaced intervals, a first electrode assembly, and a second electrode assembly. The multiple led sets have multiple leds spaced apart and aligned in a first direction.
Trend Lighting Corp.

new patent

Light-emitting diode

A light-emitting diode comprises: a first light-emitting structure, comprising: a first area comprising a side wall; a second area; and a first isolation path having an electrode isolation layer between the first area and the second area, wherein the side wall of the first area is in the first isolation path; an electrode contact layer covering the side wall of the first area, wherein the electrode contact layer is separated from electrode isolation layer; an electrical connecting structure covering the second area; and an electrical contact layer under the electrical connecting structure, wherein the electrical contact layer directly contacts the electrical connecting structure; wherein each of the first area and the second area sequentially comprises a first conductive type semiconductor layer, an active layer, and a second conductive type semiconductor layer.. .
Epistar Corporation

new patent

Solid-state imaging element, imaging device, and electronic apparatus

The present technology relates to a solid-state imaging element, an imaging device, and an electronic apparatus which enable enhancement of focusing accuracy and sensitivity and suppression of color mixing, in a high image height portion. Incident light is condensed by a main lens, and the condensed light is condensed by a plurality of on-chip lenses.
Sony Corporation

new patent

Optoelectronic device

The optoelectronic device includes a matrix of optoelectronic components including semiconductor optical amplifiers soas, the semiconductor optical amplifiers soas containing an active layer of gallium nitride gan having multiple ingan/gaasn or ingan/algan quantum wells on a substrate of p-doped gallium nitride and covered with a layer of n-doped gallium nitride. The p-doped gallium nitride gan substrate forms a column of p-gan covered with a layer of an insulator in biocompatible material.
Alcatel Lucent

new patent

Goa circuit for narrow border lcd panel

The invention provides a goa circuit for narrow border lcd panel, by disposing a first node leakage prevention unit (700) comprised of ninth tft (t9), tenth tft (t10) and third capacitor (c3), wherein the ninth tft (t9) has gate and source connected to the output clock signal (ck) to form a diode structure to charge the third capacitor (c3) and fourth node (h(n)) to high voltage; the tenth tft (t10) clears the fourth node during stage-propagated signal duration to ensure normal charging for the first node (q(n)). The goa circuit is applicable to dual-side progressive scanning architecture and also to dual-side interlaced scanning architecture, and able to prevent current leakage in the first node under dual-side interlaced scanning architecture to ensure stable operation of circuit and improve reliability of goa circuit.
Wuhan China Star Optoelectronics Technology Co. Ltd.

new patent

Esd protection device and manufacturing the same

Disclosed is a method for manufacturing an esd protection device. The esd protection device includes a rectifier diode and an open-base bipolar transistor, the anode of the rectifier diode is the first doped region and the cathode of the rectifier diode is the semiconductor substrate, the emitter region, base region and collector region of the open-base bipolar transistor are the second doped region, the epitaxial semiconductor layer and semiconductor substrate, respectively, the first doped region and the second doped region extend through the doped region into the epitaxial semiconductor layer by a predetermined depth.
Silergy Semiconductor Technology (hangzhou) Ltd.

new patent

Power control in an organic light emitting diode (oled) display device

Embodiments of systems and methods for power control in an organic light emitting diode (oled) display device are described. In an embodiment, a method includes monitoring a level of current draw from an organic light emitting diode (oled) display device.
Dell Products L.p.

new patent

Display panel, display device, and driving a pixel circuit

The disclosure discloses a display panel, a display device, and a method for driving a pixel circuit, and the pixel circuit includes a data writing module, a light-emission control module, a driver control module, a threshold compensation module, an anode resetting module, a node initialization module, and an organic light-emitting diode. The threshold compensation module can compensate for drifting of threshold voltage of the driver transistor so that the pixel circuit can emit light and display while operating current of the driver transistor to drive the light-emitting element to emit light is only dependent upon a signal on the data line and voltage at a reference signal end, but independent of the threshold voltage and a first power source voltage end to thereby avoid the threshold voltage and an ir drop from affecting the current flowing through the organic light-emitting diode..
Shanghai Tianma Am-oled Co., Ltd.

new patent

Display apparatus

A display apparatus comprises a plurality of scan lines and a plurality of data lines intersected with the scan lines in a grid, a plurality of pixel units, a first driving circuit for providing a plurality of scanning signals to the plurality of pixel units, and a plurality of pixel driving circuits. Each pixel driving circuit corresponds to one of the plurality of pixel units, and drives the corresponding pixel unit.
Hon Hai Precision Industry Co., Ltd.

new patent

Organic light emitting display device and electronic device having the same

An organic light emitting display device includes a display panel including pixels that includes an organic light emitting diode that emits light based on a driving current, a data driver providing a data signal to the pixels through a data line, a scan driver providing a scan signal to the pixels through a scan line, an emission control driver providing an emission control signal to the pixels through an emission control line, a first power provider providing a first high power voltage to the pixels through a first power providing line and a second power provider providing a second high power voltage to the pixels through a second power providing line and coupled to the first power provider. The second power provider includes a static current circuit that maintains the driving current having uniform value when the display panel is operated in a low frequency driving mode..
Samsung Display Co., Ltd.

new patent

Display with vias for concealed printed circuit and component attachment

An electronic device may include a display. The display may be an organic light-emitting diode display.
Apple Inc.

new patent

Touch organic light-emitting diode display device and touch device

A touch organic light-emitting diode display device including an organic light-emitting diode display, a touch panel, and a linear polarizing layer is provided. The touch panel is disposed on the organic light-emitting diode display, and the touch panel includes a substrate, a driving electrode, a sensing electrode, and a dielectric layer.
Young Lighting Technology Inc.

new patent

Electronic detonator, electronic ignition module (eim) and firing circuit for enhanced blasting safety

Disclosed examples include firing control electronic circuits, such as electronic ignition modules (eims), electronic detonators and firing circuits for blasting applications, in which a zener diode or one or more general purpose diodes is connected between a firing capacitor and charging voltage source in a circuit with a detonator ignition element to block voltage below a certain desired level so that the firing capacitor is not charged to enhance safety in the logger mode.. .
Austin Star Detonator Company

new patent

Compact lighting system for attracting fish and game

A compact waterproof lighting assembly includes a circuit board having a battery, a light, a switching circuit and a push button switch selectively powering the light with the battery via the switching circuit. The waterproof lighting assembly can be coupled to fishing tackle to attract fish to a fish bait.

new patent

Bulb simulating light emitting diode headlight

A bulb simulating light emitting diode headlight is disposed through a lamp bowl of an illumination device on a vehicle or motorbike body. The bulb simulating light emitting diode headlight includes a main body, a circuit board, and two light emitting diode modules.

new patent

Rear facing multi-light and function light bar

A rear facing light bar assembly that incorporates a plurality of light functions in a small integrated unit. A multifunctional circuit board powers different colored light emitting diodes to produce the tail light, brake light, amber and/or backup light.
Bestop Baja, Llc

new patent

Optical compensation films based on styrenic fluoropolymer

Disclosed are optical compensation films with exceptionally high positive out-of-plane birefringence. The optical compensation films are based on substituted styrenic fluoropolymers and have positive out-of-plane bireftingence greater than 0.02 throughout the wavelength range of 400 nm<λ<800 nm.
Akron Polymer Systems, Inc.

new patent

Lighted soft top for a sport utility vehicle or utility task vehicle

A soft top assembly for suv/utv vehicles having connected thereto at least one lighting source, such as a fixed light emitting diode lighting device, a rope/flexible light emitting diode lighting device, a solid fiber optic lighting device, to illuminate the interior of the vehicle. The lighting device has at least one water resistant housing that is low profile.
Bestop, Inc.

new patent

Bandage having a compact led insert

A portable capsule for insertion into a bandage consists of an light emitting diode (led) connected to a power source encased in a housing. The housing has a clear window that allows the uv light from the led to shine through and sterilize the surrounding bandage area.

new patent

Bottle cap with electronic embedded curved display

A cap for a container includes a base portion having a curved outer surface and being connectable to a container, the base having an indented portion on at least a part of said curved outer surface. An electronic display fits in the indented portion of the base portion and electronically connected to circuitry within the cap.
Nanhthealth, Inc.

new patent

Ultraviolet biosensor

In some embodiments, a semiconductor biosensor includes a plurality of wells, a plurality of detectors, and processing circuitry. Each well is configured to hold a test sample and to allow the test sample to be irradiated with ultraviolet radiation.
Silanna Uv Technologies Pte Ltd

System, apparatus, and light control

Embodiments of systems, methods, and apparatuses for led lighting for area lighting management, security and safety are described. An exemplary apparatus comprises a plurality of light emitting diodes (leds); a led controller to drive the plurality of leds; and a controller to receive a radio frequency (rf) led drive command and communicate the received drive command to the led controller, wherein the led controller to drive the plurality of leds according to the received drive command..
Echelon Corporation

Led lighting constant current control in various operation modes

System and method for providing at least an output current to one or more light emitting diodes. The system includes a control component configured to receive at least a demagnetization signal, a sensed signal and a reference signal and to generate a control signal based on at least information associated with the demagnetization signal, the sensed signal and the reference signal, and a logic and driving component configured to receive at least the control signal and output a drive signal to a switch based on at least information associated with the control signal.
On-bright Electronics (shanghai) Co., Ltd.

Led lighting constant current control in various operation modes

System and method for providing at least an output current to one or more light emitting diodes. The system includes a control component configured to receive at least a demagnetization signal, a sensed signal and a reference signal and to generate a control signal based on at least information associated with the demagnetization signal, the sensed signal and the reference signal, and a logic and driving component configured to receive at least the control signal and output a drive signal to a switch based on at least information associated with the control signal.
On-bright Electronics (shanghai) Co., Ltd.

Transmission circuit

A transmission circuit includes a first transmitter and a second transmitter. The first transmitter turns off first transistors when a transmission data is in a high level, and turns on the first transistors when the transmission data is in a low level.
Denso Corporation

Switching circuit

In one embodiment, an impedance matching network is disclosed that includes a first circuit comprising a first variable component providing a first variable capacitance or inductance, and a second circuit comprising a second variable component providing a second variable capacitance or inductance. Each of the first circuit and the second circuit includes plurality of switching circuits configured to provide the first variable capacitance or inductance and the second variable capacitance or inductance.
Reno Technologies, Inc.

Transimpedance amplifier with variable inductance input reducing peak variation over gain

A transimpedance amplifier (tia) structure includes an input node with a variable inductance component serving to reduce variation in peak amplitude over different gain conditions. According to certain embodiments, an inductor at the tia input has a first node in communication with a field effect transistor (fet) drain, and a second node in communication with the fet source.
Inphi Corporation

High-power laser systems with modular diode sources

In various embodiments, a modular laser system features an enclosure having interfaces for accepting input laser beam modules, optical elements for combining beams from the modules into a combined output beam, and a heat-exchange manifold for interfacing with and cooling the modules during operation.. .

Gan pumped ruby laser

A diode pumped solid state laser is provided which includes a ruby crystal optical gain medium and a high bandgap semiconductor laser diode (ld) or light emitting diode (led) pump source to directly optically pump the gain medium. The high-bandgap semiconductor ld or led is a semiconductor device whose chemical composition is chosen to provide output radiation at an approximate wavelength of ˜405 nm.
Wfk Lasers, Llc.

Electrical tools, nickel-zinc battery system and manufacturing method therefor

The present invention further provides a nickel-zinc battery system used for rechargeable electrical tools. The present invention further provides a method for manufacturing a battery set of the nickel-zinc battery system.
Hangzhou Neucell Energy Co., Ltd.

Organic light emitting diode display device

An oled display device includes a substrate. A first electrode is disposed on the substrate.
Samsung Display Co., Ltd.

Display apparatus and an organic light-emitting diode device

The disclosure discloses a display apparatus and an organic light emitting diode device, wherein the organic light emitting diode device including a glass substrate, an anode layer, an organic layer and a cathode layer laminated sequentially, the refractive index of the anode layer is larger than the refractive index of the glass substrate, wherein a through hole is formed in the anode layer so that partial of the incident light from the organic layer can be extracted through the through hole to the glass substrate in order to reduce the total reflection phenomenon of the contracting surface of the anode layer and the glass substrate.. .
Shenzhen China Star Optoelectronics Technology Co., Ltd.

Organic light emitting diode and display device including the same

Disclosed is an organic light emitting diode, including a cathode electrode and an anode electrode positioned above the cathode electrode. An emitting layer is positioned between the cathode electrode and the anode electrode.
Samsung Display Co., Ltd.

Organic light emitting compound and organic light emitting diode including the same

Also disclosed is an organic light emitting diode including the organic light emitting compound. Particularly, the organic light emitting diode employs the organic light emitting compound as a material for electron injection and transport.

Light-emitting diode display device

A light-emitting diode display device includes a light-emitting diode and a substrate. The light-emitting diode includes a central axis, and the substrate includes a first connecting portion and a second connecting portion.
Innolux Corporation

Light emitting diode chip and display composed of light emitting diode chips

A light emitting diode chip comprises a light emitting diode chip core and a coating layer. The coating layer covers side surfaces of the light emitting diode chip core.
Advanced Optoelectronic Technology, Inc.

Light emitting diode

A light emitting diode include a light emitting chip, a first reflecting layer surrounding the light emitting diode chip, a first encapsulation layer and a second encapsulation layer covering on the light emitting diode chip. The light emitting chip has a light exiting surface, a first electrode and a second electrode.
Advanced Optoelectronic Technology, Inc.

Display apparatus and manufacturing method thereof

A display apparatus is provided. The display apparatus includes a substrate, a transistor, a metal layer, and a light-emitting diode.
Innolux Corporation

Bond and release layer transfer process

Embodiments transfer thin layers of material utilized in electronic devices (e.g., gan for optoelectronic devices), from a donor to a handle substrate. Certain embodiments employ bond-and-release system(s) where release occurs along a cleave plane formed by implantation of particles into the donor.
Qmat, Inc.

Semiconductor device including a resonant tunneling diode structure with electron mean free path control layers

A semiconductor device including at least one double-barrier resonant tunneling diode (dbrtd) is provided. The at least one dbrtd may include a first doped semiconductor layer, and a first barrier layer on the first doped semiconductor layer and including a superlattice.
Atomera Incorporated

Method for making a semiconductor device including a resonant tunneling diode structure having a superlattice

A method for making a semiconductor device may include forming at least one double-barrier resonant tunneling diode (dbrtd) by forming a first doped semiconductor layer, and forming a first barrier layer on the first doped semiconductor layer and including a superlattice. The superlattice may include stacked groups of layers, each group of layers including stacked base semiconductor monolayers defining a base semiconductor portion, and at least one non-semiconductor monolayer constrained within a crystal lattice of adjacent base semiconductor portions.
Atomera Incorporated

Semiconductor device including resonant tunneling diode structure having a superlattice

A semiconductor device may include at least one double-barrier resonant tunneling diode (dbrtd). The at least one dbrtd may include a first doped semiconductor layer and a first barrier layer on the first doped semiconductor layer and including a superlattice.
Atomera Incorporated

Method for making a semiconductor device including a resonant tunneling diode with electron mean free path control layers

A method for making a semiconductor device may include forming at least one a double-barrier resonant tunneling diode (dbrtd) by forming a first doped semiconductor layer, and a forming first barrier layer on the first doped semiconductor layer and including a superlattice. The method may further include forming a first intrinsic semiconductor layer on the first barrier layer, forming a second barrier layer on the first intrinsic semiconductor layer and also comprising the superlattice, forming a second intrinsic semiconductor layer on the second barrier layer, and forming a third barrier layer on the second intrinsic semiconductor layer and also comprising the superlattice.
Atomera Incorporated

Organic light emitting diode display device and fabricating the same

An organic light emitting diode display device comprises a substrate including a pixel region, the pixel region including a first portion and a second portion, a first electrode in the second portion of the pixel region, a bank layer separating the first portion and the second portion of the pixel region, an emitting layer in the second portion of the pixel region but not in the first portion of the pixel region, an emission assisting layer extending in the first portion of the pixel region and in the second portion of the pixel region, the emission assisting layer in the first portion of the pixel region being more conductive than the emission assisting layer in the second portion of the pixel region, and a second electrode on the emission assisting layer in the first portion of the pixel region and in the second portion of the pixel region.. .
Lg Display Co., Ltd.

Organic light emitting diode display

An organic light emitting diode display includes a substrate, a plurality of pixels disposed on the substrate, a plurality of transmissive windows spaced apart from the pixels, and a light blocking member disposed between one of the pixels and one of the transmissive windows. The pixels display an image, and light is transmitted through the transmissive windows.
Samsung Display Co., Ltd.

Display device with heterogeneous pixel array for borderless design

An organic light emitting diode display includes a substrate defining a first pixel portion and one or more second pixel portions. Pixels formed in the first pixel portion can include a first driver circuit.
Motorola Mobility Llc

Organic light emitting diode display

An organic light emitting diode display includes a stretchable substrate, a plurality of pixel forming plates, first and second pixels, and a cut-out groove. The pixel forming plates are on the substrate and spaced apart from each other.
Samsung Display Co., Ltd.

Method for manufacturing image capturing device and image capturing device

An offset spacer film (oss) is formed on a side wall surface of a gate electrode (nlge, plge) to cover a region in which a photo diode (pd) is disposed. Next, an extension region (lnld, lpld) is formed using the offset spacer film and the like as an implantation mask.
Renesas Electronics Corporation

Photodiode array structure for cross talk suppression

There is provided an avalanche photodiode array that includes a plurality of avalanche photodiodes. Each avalanche photodiode in the array includes a stack of active photodiode materials.
Massachusetts Institute Of Technology

Diode design of finfet device

A method for manufacturing an electrostatic discharge (esd) protection device includes providing a semiconductor structure including a semiconductor substrate including a first region of a first conductivity type and a semiconductor fin on the semiconductor substrate; forming an electrode on the semiconductor fin; and performing a doping process on the semiconductor structure to forming a second region in the first region, the second region having a second conductivity type opposite the first conductivity type to form a pn junction in the semiconductor substrate. Since the pn junction is formed in the semiconductor substrate, it has a relatively large area to prevent local hot spots from occurring when a current flows through the esd protection device, thereby reducing performance degradation of a semiconductor device..
Semiconductor Manufacturing International (shanghai) Corporation

Semiconductor device and composite semiconductor device

Provided is a lateral field effect transistor in which response performance is improved. In a lateral field effect transistor, a block is arranged closer to a gate terminal than a zener diode..
Sharp Kabushiki Kaisha

Application of diode box to reduce crazing in glass coatings

Systems, methods, and apparatus are disclosed for reducing crazing in thin film stacks deposited on large area substrates such as glass, for instance architectural glass. Crazing can occur once a conductor-insulator-conductor series of films have been deposited, thereby effectively forming a capacitor, and where the substrate spans multiple deposition chambers such the coupling between chambers can cause the effective capacitor voltage to breakdown the insulator layer between the two conductor layers.
Advanced Energy Industries, Inc.

Improvements in and relating to drivers

A driver circuit for an led display for switching a light-emitting diode (led) between a non-luminous state and a luminous state for producing light for a display, the driver circuit comprising an led, a drive current controller (10) arranged to selectively open and close a drive current flow path (8) through the led (2) thereby selectively to switch the led between a non-luminous state and a luminous state, a charge injector unit (13) for inputting charge into the led to store said charge within the led via the junction capacitance (3) thereof, a control unit (12) arranged to control the charge injector unit to input said charge into the led concurrently with the opening of the drive current flow path.. .
Bae Systems Plc

Synchronized true random number generator

A synchronized true random number generator (srng) includes a pulse source that provides a synchronized pulse signal synchronized with a known time, an oscillator to make a clock signal, a time synthesizer, and a triggerable true random number generator (trng). Another embodiment includes a plurality of independent triggerable trngs, separated by a separation distance, that produce free trng output.

Input device, mouse using the same and method using the same

An input device, a mouse using the same and a method using the same are provided. The input device capable of avoiding error action of a switch includes a first g diode, a second diode and a switch.
Benq Corporation

Device and detecting light

A device for detecting light includes a silicon photomultiplier (sipm) comprising a detection area formed from an array of a plurality of single-photon avalanche diodes (spads). An optical system is configured to shape the light such that the detection area is covered as completely as possible with a light beam region of substantially constant intensity..
Leica Microsystems Cms Gmbh

Single spad array ranging system

One or more embodiments are directed to imaging devices and methods for determining a distance to a target object utilizing a single sensor array. One embodiment is directed to an imaging device that includes a light-emitting device, a driving circuit, a return single-photon avalanche diode (spad) array and readout circuitry.
Stmicroelectronics (research & Development) Limited

Tdlas architecture for widely spaced wavelengths

A system for widely spaced wavelength tunable diode laser absorption spectroscopy includes at least a first and second tunable diode laser generating laser light at a first and second wavelength, wherein laser light of the first and second wavelengths cannot co-propagate efficiently on the same single-mode fiber. A first fiber may be configured to carry light in the first wavelength, and a second fiber configured to carry light in the second wavelength.
Zolo Technologies, Inc.

Light receiver and portable electronic apparatus

There is provided a light receiver which corrects measurement of ultraviolet rays on the basis of measurement of visible right and infrared rays. The light receiver is a light receiver (1) including a first light-receiving element (pd1) and a second light-receiving element (pd2), and a uv cutoff filter (11) in which transmittance of light in an ultraviolet region is lower, in which light after passage through the uv cutoff filter (11) enters the first light-receiving element (pd1), and the first light-receiving element (pd1) and the second light-receiving element (pd2) are switchable between a photodiode (pd_uv) having sensitivity to the ultraviolet region and a photodiode (pd_clear) having sensitivity to a visible light region and an infrared region.
Sharp Kabushiki Kaisha

Method for on-line imaging of mesophase particles

On-line detection of mesophase particles employs a laser diode light source to illuminate a target area with a pulsed laser linearly or circularly polarized probe beam. Analysis of images determines extent of presence the birefringent mesophase particles, which are precursors to coking in catalytic hydrocracking processes.
Honeywell Limited

Method of preparing crosslinked pressure-sensitive adhesives using a light-emitting diode for crosslinking

A method of preparing a crosslinked pressure-sensitive adhesive is provided, including exposing at least one radiation crosslinkable pressure-sensitive adhesive composition to radiation from at least one light-emitting diode to crosslink the radiation crosslinkable pressure-sensitive adhesive composition. The crosslinked pressure-sensitive adhesive is optionally a hot melt processable pressure-sensitive adhesive.
3m Innovative Properties Company

Insect trap using uv led lamp

The present document relates to an insect trap using an ultraviolet light-emitting diode (uv led) lamp, and more particularly, to an insect trap using, in place of a conventional uv light source lamp, a uv led lamp that significantly increases the insect trapping efficiency. One example implementation of the insect trap includes: a uv led lamp disposed in an air inlet portion of the duct, and including a printed circuit board (pcb) that has a uv led chip mounted thereon; an installing portion for installing the uv led lamp on; and a trapping portion provided near the installing portion..
Seoul Viosys Co., Ltd.

Accent lights with junction box controller

A system and method for an accent lighting system is provided. The system includes a plurality of underwater luminaires each having a plurality of light emitting diodes, and a junction box controller housing a plurality of electrical components for generating electrical signals for controlling the plurality of underwater luminaries.
Hayward Industries, Inc.

Dimming led circuit augmenting dc/dc controller integrated circuit

Embodiments include systems, methods, and apparatuses for providing a dimming function in a single stage ac input light emitting diode (led) driver with a controller that contains an on-chip error amplifier and an on-chip fixed reference voltage source coupled to a first input of the error amplifier. The controller controls a duty cycle of a switching transistor to cause a feedback voltage, applied to a first package input terminal, to match the reference voltage.
Lumileds Llc

Circuit arrangement for operating semiconductor light sources

According to the present disclosure, a circuit arrangement for operating semiconductor light sources includes: a power input for inputting an ac input voltage, an output having a first output terminal, and a second output terminal, which is designed to connect a string of semiconductor light sources, a control input for controlling the operation of the circuit arrangement with a control signal, a rectifier circuit for converting the ac input voltage into a rectified voltage, a converter circuit for transforming the rectified voltage into a current which is suitable for the semiconductor light sources, a first switch arranged between the converter circuit and the output, for the switching of the current through the semiconductor light sources, and a first diode arranged between the first switch and the output, or between the converter circuit and the first switch.. .
Osram Gmbh

Led driver for high-speed optical communications based on linear modulations

This invention relates to a light emitting diode driving circuit (101) for use in an optical transmitter (100) comprising: a high-speed signal path (102) comprising a high-speed trans-conductance amplifier (114) configured for a linear transformation of an input signal to an output signal for linear modulation of a light emitting diode (110), and a low-frequency control path (103) configured for generating a trans-conductance (115) in dependence of a low-frequency component of the input signal (106), and wherein the low-frequency control path (103) is configured for controlling the trans-conductance (116) of the high-speed trans-conductance amplifier (114).. .
Knowledge Development For Pof Sl

Device for driving light emitting diode, and light emitting module including same

One embodiment relates to a device for driving a light emitting diode, the device controlling a plurality of light emitting diode arrays connected in series, and comprising: a rectifying unit for rectifying an alternating current signal so as to output the rectified signal; and a control unit for sensing the level of the rectified signal, comparing the sensed level of the rectified signal with a reference voltage, and aligning a first group among the plurality of light emitting diode arrays and a second group among the plurality of light emitting diode arrays in series or in parallel on the basis of the comparison result, wherein the control unit successively drives the light emitting diode arrays of the first and second groups connected in parallel or successively drives the light emitting diode arrays of the first and second groups connected in series on the basis of the magnitude of the sensed level of the rectified signal.. .
Lg Innotek Co., Ltd.

Structure for detecting vibration displacement of a speaker and acoustoelectric inter-conversion dual-effect device

Disclosed is a structure for detecting the vibration displacement of a speaker, including: a vibration system having a movable pole plate; a magnetic circuit system; and a fixed pole plate provided under the vibration system and opposite to the movable pole plate, the movable pole plate and the fixed pole plate constituting a capacitor. Also disclosed is an acoustoelectric inter-conversion dual-effect device, further including an impedance transformer connected to the capacitor and including a field effect transistor and a diode.
Goertek.inc

Image sensor having test pattern and offset correction method thereof

An image sensor includes a substrate including an active pixel and a test pattern, wherein the test pattern is located adjacent to the active pixel, wherein the active pixel comprises a first photodiode, a floating diffusion, a first channel provided between the first photodiode and the floating diffusion, and a first transfer gate electrode provided over the first channel, wherein the test pattern comprises a first test photodiode, a test floating diffusion, a second channel provided between the first test photodiode and the test floating diffusion, a first test transfer gate electrode provided over the second channel, and a first contact plug connected to the first test photodiode, and wherein the first test photodiode, the test floating diffusion, the second channel, and the first test transfer gate have substantially the same alignment errors as the first photodiode, the floating diffusion, the first channel, and the first transfer gate electrode, respectively.. .
Sk Hynix Inc.

Laser lighting having selective resolution

In an example, the present invention provides an optical engine apparatus. The apparatus has a laser diode device, the laser diode device characterized by a wavelength ranging from 300 to 2000 nm or any variations thereof.
Soraa Laser Diode, Inc.

Systems, devices, and methods for laser projectors

Laser safety systems, devices, and methods for use in laser projectors are described. A laser projector includes any number of laser diodes that each emit laser light, a shared laser diode power source, a photodetector to detect a power/intensity of a portion of the laser light, a beam splitter to direct a first portion of the light towards the photodetector and a second portion of the light towards an output on the projector, and a laser safety circuit responsive to signals from the photodetector.
Thalmic Labs Inc.

Monolithic visible/ir fused low light level imaging sensor

An imaging array and method for fabricating the same are disclosed. The imaging array includes a semiconductor substrate having a plurality of vis pixel sensors and a plurality of swir readout circuits fabricated therein.
Bae Systems Imaging Solutions Inc.

Portable authentication and encryption device and system

A portable electronic device for authentication and encryption communicably attached to a computer system is provided. The portable device may generate and automatically output authentication data for a plurality of accounts on request by a user.

High-bandwidth underwater data communication system

An apparatus is described which uses directly modulated ingan light-emitting diodes (leds) or ingan lasers as the transmitters for an underwater data-communication device. The receiver uses automatic gain control to facilitate performance of the apparatus over a wide-range of distances and water turbidities..
Fairfield Industries Incorporated

Circuit breaker device, especially for a vehicle electrical system

A circuit breaker device includes at least one circuit breaker component with an input terminal (18), an output terminal (22) and with a driving terminal (26). The circuit breaker component (14) is in a conductor state when driving voltage is applied to the driving terminal (26) and is in a diode state when driving voltage is not applied thereto, resulting in a component blocked state when the input terminal (18) is at a higher potential than the output terminal (22).
Eberspächer Controls Landau Gmbh & Co. Kg

Temperature compensated constant current system and method

A current reference circuit includes a voltage generating device, a resistor, one or more diodes, and a thermal bridge including one or more metal alloy contacts disposed on a substrate. The voltage generating device and the resistor have similar temperature coefficients.
Semiconductor Components Industries, Llc

Power converter

An inverter main circuit using high-side mosfets converts a power source voltage of a battery to an alternating current, and supplies the alternating current to a three-phase motor. A control circuit drives, via a high-side drive circuit and a low-side drive circuit, the mosfets.
Denso Corporation

Device and closed-loop control of a power converter

A control device for a switching power converter having an inductor element, a switch coupled to the inductor element, a storage element coupled to an output on which an output voltage is provided, and a diode element coupled to the storage element. The control device generates a command signal to control the switch and determine storage of energy in the inductor element in a first interval, and transfer of energy onto the storage element through the diode element in a second interval.
Stmicroelectronics S.r.l.

Accurate non-isolated high voltage dc-dc feedback

A method and apparatus for regulating a non-isolated high voltage converter applies a pwm signal to a power transistor that couples an input voltage to a floating ground node to charge an inductor and generate an output voltage which is measured with a first floating comparator to disable the pwm signal upon detecting a high threshold output voltage, the first floating comparator having inputs connected across first and second resistive elements to measure a voltage across a feedback resistor connected in series with a diode between the output voltage and a neutral ground reference. Subsequently, the output voltage is measured with a second floating comparator to enable the pwm signal upon detecting a low threshold output voltage, where the second floating comparator has inputs connected across the first and second resistive elements to measure the feedback voltage across the feedback resistor..
Nxp Usa, Inc.

Power switch with power harvesting for local controller

A power switch includes a bridge-connected switching circuit with (1) a pair of mosfets back-to-back in series between line and load connections, an interconnection point of the mosfets being a first common connection, and (2) a pair of diodes back-to-back between the line and load connections, an interconnection point of the diodes being a second common connection. A line/load controller has supply inputs connected to the first and second common connections for receiving operating power, and (1) places both mosfets in the on state to deliver normal operating current to the load for normal operation, and (2) places both mosfets in the off state to deliver (by body diode conduction) a substantially reduced leakage current to the load when the load is not powered for normal operation, the leakage current providing the operating power to the line/load controller..
Bel Fuse (macao Commercial Offshore) Limited

Monolithic diode laser arrangement and producing the monolithic diode laser

A monolithic diode laser arrangement contains a plurality of individual emitters which are arranged adjacent to one another on a common supporting substrate and which in each case have contact windows for electrical contact which are arranged on the respective individual emitters on a front face opposite the supporting substrate. A method for producing such a diode laser arrangement and a laser device having such a diode laser arrangement are further described..
Dilas Diodenlaser Gmbh

Failure detection of laser diodes

Embodiments described herein generally relate to an apparatus and method for performing photolithography processes. More particularly, embodiments described herein generally relate to an apparatus and method for the digital control of optical-coupled solid state relays employed on a laser diode.
Applied Materials, Inc.

Single longitudinal mode laser diode system

A semiconductor laser diode system may include a single longitudinal mode laser diode and a feedback system that monitors and controls the emission characteristics of the laser diode. The laser diode may include a gain medium and an optical feedback device.
Necsel Intellectual Property, Inc.

Laser device

To provide a laser device including an electrically conductive member, which shortens an operation time during electrical connection of laser diode modules, appropriately performs positioning during connection, is highly effective in reducing the number of processes, is highly versatile, and has a simple structure. The laser device includes: a plurality of laser diode modules each including two electrodes; and an electrically conductive member for electrically connecting the electrodes of different ones of the laser diode modules through soldering.
Fanuc Corporation

Beam source having a laser diode

A beam source includes a laser diode having an emission surface for emitting a divergent beam, a carrier structure on which the laser diode is arranged such that the beam has, immediately downstream of the emission surface, a direction component parallel to a surface of the carrier structure that faces the laser diode, and a reflection prism with a transparent prism material having a refractive index np≧1.5. The diode and the prism are arranged relative to each other such that the beam from the diode is incident downstream on an entrance surface of the prism, travels through the prism material with a reduced aperture angle, and in the process is reflected away from the carrier structure at a reflection surface of the prism.
Osram Gmbh

Evaporation method and evaporation device for organic light-emitting diode substrate

An evaporation method and an evaporation device for an organic light-emitting diode substrate are proposed. The evaporation method includes: step 1, regulating a distance between a supporting module for supporting a substrate and a crucible platform of an evaporation device; step 2, adjusting a direction of opening of a crucible disposed on the crucible platform; and step 3, placing a substrate to be evaporated on the supporting module and volatizing an evaporation source in the crucible and attaching the volatized evaporation source onto a surface of the substrate..
Shenzhen China Star Optoelectronics Technology Co., Ltd.

Organic light emitting diode display

An organic light emitting diode display is disclosed in which a flow control pattern of an organic protective layer is disposed to implement a thin bezel. In an active area and a bezel area defined on a substrate, the flow control pattern disposed reduces the flow of a protective layer so as to minimize area size of the bezel area..
Lg Display Co., Ltd.

Organic light emitting diode package structure

An organic light emitting diode package structure includes a first structure layer, a second structure layer, and a luminous layer disposed between the first structure layer and the second structure layer. Two recesses are formed by bending two respective opposite ends of the first structure layer.
Wuhan China Star Optoelectron Technology Co., Ltd

Quantum dot light emitting devices

In one aspect, light emitting devices are described herein. In some embodiments, a light emitting device described herein comprises an inorganic semiconductor substrate and a layer of quantum dots (qds) covalently bonded to the inorganic semiconductor substrate.
University Of North Carolina At Charlotte

Light emitting diode and fabricating the same

A light emitting diode and a method of fabricating the same are described. The light emitting diode has: a hole transport layer, an active layer and an electron transport layer.
National Cheng Kung University

Light emitting diode package having frame with bottom surface having two surfaces different in height

A light emitting diode package can include a substrate; a light emitting diode on the substrate; an electrode electrically connected to the light emitting diode; a frame surrounding the light emitting diode and configured to reflect light emitted from the light emitting diode; and a hole formed to pass through the substrate and configured to connect both upper and bottom surfaces of the substrate, in which a top surface of the frame is higher than a top surface of the light emitting diode, a portion of the frame has an inclined inner surface, the frame includes at least one protruding portion protruding from an imaginary surface where the light emitting diode is disposed, a bottom surface of the at least one protruding portion contacts the substrate, the at least one protruding portion is outside of the light emitting diode, and the hole is vertically overlapped with the light emitting diode.. .
Lg Innotek Co., Ltd.

Light emitting diode assembly structure

A light emitting diode assembly structure includes a light emitting chip, a color converting layer, a light guiding member, and a reflecting member. The color converting layer coats the light emitting chip and the light guiding member coats the color converting layer.
Harvatek Corporation

Light emitting diodes, components and related methods

Light emitting diodes, components, and related methods, with improved performance over existing light emitting diodes. In some embodiments light emitter devices included herein include a submount, a light emitter, a light affecting material, and a wavelength conversion component.
Cree, Inc.

Illuminated transflective gemstones, methods, and apparatus thereof

A light source comprising a substrate, wherein the substrate is coated with a transflective thin film optical coating, wherein the coating results in a metallic mirror and/or iridescent effect on the substrate; and a light emitting diode comprising an internal circuitry, wherein when the light source in a switched-off mode the metallic mirror effect or the iridescent effect conceal internal circuitry of the light emitting diode to provide an aesthetic look and color on the gemstone, wherein when the light source is switched-on the transflective thin film allows led light to transmit through the substrate, wherein the light source comprises a substantially invisible light source integrated onto a substrate. In other embodiments, led may include oled, transparent inorganic led, flexible cof led, etc.
Effulgent Inc.

Substrate with topological features for steering fluidic assembly led disks

Embodiments are related to integrated circuit (ic) fabrication and, more particularly, to a fluidic assembly process for the placement of light emitting diodes on a direct-emission display substrate.. .
Sharp Laboratories Of America, Inc.

Thin-film flip-chip light emitting diode having roughening surface and manufacturing the same

A thin-film flip-chip light emitting diode (led) having a roughened surface and a method for manufacturing the same are provided. First, a substrate having a patterned structure on a surface of the substrate is provided, and the surface is roughened.
Genesis Photonics Inc.

Flexible silicon infrared emitter

An apparatus includes a flexible silicon (si) substrate, such as a crystalline n-type substrate, and a heterostructure structure formed on the silicon substrate. The heterojunction structure includes a first layered structured deposited on a first side of the silicon substrate.
Arizona Board Of Regents On Behalf Of Arizona State University

Array of geiger-mode avalanche photodiodes for detecting infrared radiation

An array of geiger-mode avalanche photodiodes is formed in a die and includes: an internal dielectric structure, arranged on the die; and an external dielectric region arranged on the internal dielectric structure. The external dielectric region is formed by an external material that absorbs radiation having a wavelength that falls in a stop-band with low wavelength and transmits radiation having a wavelength that falls in a pass-band with high wavelength, at least part of the pass-band including wavelengths in the infrared.
Stmicroelectronics S.r.l.

High power semiconductor device

This application provides a high power semiconductor device, which is characterized by forming two diodes connected in parallel and a schottky contact on a channel layer to lower the turn-on voltage and turn-on resistance of the high power semiconductor device at the same time and to enhance the breakdown voltage.. .
Epistar Corporation

Stucture for protecting an integrated circuit against electrostatic discharges

An integrated circuit includes at least one input-output pad and a terminal intended to be connected to a source of a reference potential and further including a protection structure including a thyristor forward-connected between the pad and the terminal. The thyristor includes a first resistor between its cathode gate and the terminal.
Stmicroelectronics (rousset) Sas

Organic light emitting diode display

An organic light emitting diode display includes a substrate; a buffer layer on the substrate; a scan line running to a horizontal direction on the buffer layer; an intermediate insulating layer covering the scan line; a first trench having a segment shape apart from the scan line with a predetermined distance and exposing some of the substrate by patterning the intermediate insulating layer and the buffer layer; a data line running to a vertical direction on the substrate exposed by the first trench and on the intermediate insulating layer; a passivation layer covering the data line and the scan line; and a color filter filling into the trench and depositing on the passivation layer.. .
Lg Display Co., Ltd.

Organic light emitting diode display

An organic light emitting diode (oled) display includes a substrate, a thin film transistor on the substrate, an organic light emitting diode on the thin film transistor, and including a first electrode connected with the thin film transistor, and a black organic layer between the thin film transistor and the first electrode, and including a black protrusion spaced from the first electrode.. .
Samsung Display Co., Ltd.

Display device

A display device including a base layer, a circuit layer, a light emitting device layer, an organic layer, and a touch sensing unit. The base layer includes a display area and a non-display area.
Samsung Display Co., Ltd.

Photo sensor

Some embodiments described herein are directed to a photo sensor and a method of operating a photo sensor. In an embodiment, a photo sensor comprises a photo diode, a filter circuit, and an output circuit.
Wcsystems Corporation

Photo sensor

Some embodiments described herein are directed to a photo sensor and a method of operating a photo sensor. In an embodiment, a photo sensor comprises a photo diode, a filter circuit, and an output circuit.
Wcsystems Corporation

Biased deep trench isolation

An image sensor includes a plurality of photodiodes disposed in a semiconductor material, and a through-semiconductor-via coupled to a negative voltage source. Deep trench isolation structures are disposed between individual photodiodes in the plurality of photodiodes to electrically and optically isolate the individual photodiodes.
Omnivision Technologies, Inc.

Displays with silicon and semiconducting oxide thin-film transistors

An electronic device may include a display having an array of display pixels on a substrate. The display pixels may be organic light-emitting diode display pixels or display pixels in a liquid crystal display.
Apple Inc.

Avalanche diode having an enhanced defect concentration level and making the same

The invention relates to an avalanche diode that can be employed as an esd protection device. An avalanche ignition region is formed at the p-n junction of the diode and includes an enhanced defect concentration level to provide rapid onset of avalanche current.
Infineon Technologies Ag

Optoelectronic nuclear batteries based on radionuclide nanoencapsulation and organic photodiodes

Embodiments of the present disclosure relate to compositions including a doped material, batteries including the composition, photovoltaic devices including the battery, and the like.. .
University Of Florida Research Foundation, Inc.

Display device

A display device includes a display panel having a data display area in which pixels are arranged and a lighting part outside the data display area; a display panel driver driving an organic light-emitting diodes in the pixels; and a lighting driver driving an organic light-emitting diodes in the lighting part; and a power supply part generating the high-potential power supply voltage and the low-potential power supply voltage, wherein the lighting part includes: one or more second high-potential power supply lines connected between the power supply part and the organic light-emitting diodes in the lighting part; and a switch connected to the second high-potential power supply lines, and wherein the lighting driver turns on the switch to supply the high-potential power supply voltage to the organic light-emitting diodes in the lighting part when there is an user input or a system power is turned off.. .
Lg Display Co., Ltd.

Organic light-emitting display panel, organic light-emitting display device, driving circuit, controller, and driving method

An organic light-emitting display device includes: an organic light-emitting display panel including: a plurality of subpixels including: an organic light-emitting diode (oled), a driving transistor (dt) driving the oled including a first transistor between a first node of the dt and a data line, and a second transistor (t2) between a second node of the dt and a reference voltage line having a reference voltage (rv) applied, a sensor, and a sampling switch, wherein, during an oled short detection period for detecting a short circuit between the first electrode and a second electrode of the oled: the dt and the first transistor are off, when the t2 is turned off, the rv line is initialized when the rv is applied thereto, after the t2 is turned on, the sampling switch is turned on to connect the sensor and the rv line, and the sensor measures the rv line voltage.. .
Lg Display Co., Ltd.

Pixel circuit and driving the same

The present disclosure relates to a pixel circuit and a method for driving the same. The pixel circuit includes: first and second transistors, control terminals of which receive a first scan signal; third and fourth transistors, control terminals of which receive a second scan signal; a fifth transistor, a control terminal of which is electrically coupled to a capacitor; sixth, seventh and eighth transistors, control terminals of which receive a control signal; and a light emitting diode.
Everdisplay Optronics (shanghai) Limited

Organic light emitting display and driving method thereof

Disclosed is an organic light emitting display including: a display panel on which a plurality of gate lines, a plurality of data lines, and a plurality of pixels are arranged, each pixel including an organic light emitting diode (oled); a gate driving circuit connected to the pixels through the gate lines; and a data driving circuit connected to the pixels through the data lines, wherein each of the pixels comprises: a driving thin film transistor (tft); a first switch tft; a second switch tft; a third switch tft; and a storage capacitor, and wherein the first to third tfts and the driving tft are p-type tfts.. .
Lg Display Co., Ltd.

Braille cells and assemblies for single-line braille displays

Braille cells and assemblies include an actuator that engages and makes readable a braille dot by moving a shaft on a base to engage the dot. An electro-permanent magnet and a separate magnetic plate on the shaft can cause the rotation.
Inceptor Technologies Pvt. Ltd.

Biometric device and wearable carrier

A biometric device includes a substrate, an image sensor, at least one infrared light emitting diode (ir led), a supporting structure and an optical layer. The image sensor is disposed on the substrate.
Industrial Technology Research Institute

Image forming apparatus

The present disclosure is directed to suppressing image defects due to variations in the values of currents flowing through respective photosensitive drums during image formation, and reducing the absolute value of a voltage applied when a primary transfer power supply unit applies a voltage of polarity opposite to that during image formation, to primary transfer members. There is provided an image forming apparatus including a transfer member configured to make contact with an inner peripheral surface of a transfer belt, a first power supply unit configured to apply a voltage to the transfer member, a resistance element connected between the first power supply unit and the transfer member, and a diode connected in parallel with the resistance element in a direction in which a current flowing in a first direction is blocked and a current flowing in a second direction is passed..
Canon Kabushiki Kaisha

Method for manufacturing a germanium slow light waveguide and photodiode incorporating this slow light waveguide

Before implementing said epitaxial growth operation, a protective layer is deposited on an upper face of the silicon plate or, after implementing said epitaxial growth operation, the germanium that has grown on said upper face is removed.. .

Light source module

A light source module includes a light guide plate, a reflecting film, and a plurality of edge-type light emitting diode (led) units. Grooves are defined in a lower surface of the light guide plate.
Harvatek Corporation

Light-emitting checking light-emitting apparatus

A light-emitting apparatus includes: a radiation apparatus which includes a first laser diode and a second laser diode; a light guide which includes a first photoreceptor, a second photoreceptor, and a leak, and guides laser light received by the first photoreceptor and the second photoreceptor, the leak allowing leakage laser light to be leaked out in a direction crossing a light-guiding direction, the leakage laser light being part of the laser light; a converter which converts a wavelength of the leakage laser light leaked out of the light guide; and a detector which detects, at a non-radiation time in which laser light is not radiated, an electromotive force of the first laser diode, the electromotive force being based on laser light radiated by the second laser diode.. .
Panasonic Intellectual Property Management Co., Lt D.

Method for improving the dynamic range of a device for detecting light

A method for improving dynamic range of a device for detecting light includes providing at least two detection regions. The detection regions are each formed by an array of a plurality of single-photon avalanche diodes (spads) and the detection regions each comprise at least one signal output.
Leica Microsystems Cms Gmbh

Optical encoder with axially aligned sensor

Embodiments of the present disclosure provide an optical encoder for an electronic device. The optical encoder comprises an elongated shaft and a plurality of markings axially disposed around a circumference of the elongated shaft.
Apple Inc.

Cooling system of led lamp

A cooling system of a light emitting diode (led) lamp includes: a circulatory pipe, a pump, an led cooling module and a power source cooling module, wherein the led cooling module is a fluid cooling mechanism for an led lamp, the power source cooling module is a fluid cooling mechanism for an led lamp power source module, the circulatory pipe is connected to the led cooling module and the power source cooling module, the pump is assembled to the circulatory pipe, causing a fluid in the circulatory pipe to flow through the led cooling module and the power source cooling module and form a circulatory flow, thereby achieving a cooling and temperature reducing function of the led lamp and the power source module at the same time.. .

Lighting device and making and using the same

A lighting device includes a light-emitting diode (led). A first carbon nanotube (cnt) is coupled to and extends from the led.
The Boeing Company

Vehicle lamp and control method thereof

A vehicle lamp may include at least one head lamp having a plurality of optical modules spaced apart from each other. Each optical module may include a base substrate and a plurality of light emitting diodes disposed on the base substrate.
Lg Electronics Inc.

Headlamp module

A headlamp module comprises a connecting base, a substrate, and at least two edge-type light emitting diode (led) units. The at least two edge-type led units are mounted to opposite surfaces of the substrate facing away from each other.
Harvatek Corporation

Scalable direct line voltage led luminaire tape

A lighting device includes a junction box and a power cord coupled to the junction box. A tape is connected to the junction box and is electrically coupled to the power cord.

Led chip-on-board lighting device

A lighting device may comprise: a housing configured to receive a light emitting circuit and a battery; a light emitting circuit including one or more light emitting diodes mounted to a circuit board; a translucent or transparent conformal lens formed to cover the one or more light emitting diodes; and an electrical switch for selectively energizing the light emitting diodes to produce light. The housing may be in a shape resembling a key.
Streamlight, Inc.

Lighting device with led filaments

A lighting device is providing that includes several led filaments disposed inside a partially transparent external container and connected to anode and cathode output terminals. Each led filament includes a slimline substrate, a plurality of light-emitting diodes regularly distributed in line.
Led-ner

Curable nano-composites for additive manufacturing

Curable liquid nano-composites for additive manufacturing of objects having precisely controlled mechanical and electronic properties are provided. Methods of making the curable nano-composites, and methods of additive manufacturing using the nano-composites are also provided.
Schmutz Ip, Llc

Thienothiophene - boron (donor-acceptor) based materials for organic light emitting diodes

The present invention discloses new molecules having defined structures of a series of thienothiophene (tt) and boron derivatives, light emitting devices of which are expected to be applied to organic light emitting diodes (oled). .
Tubitak

Portable lighting devices

A method for increasing battery life in a lighting device powered by a battery source in which an electronic switch is caused to provide a declining power supply to a light emitting diode (“led”) as a power profile of the battery source declines.. .
Mag Instrument, Inc.

Color-temperature adjustable led lighting device and adjusting color temperature of led lighting device

A color-temperature adjustable light-emitting diode (led) lighting device and a method for adjusting the color temperature of an led lighting device are provided. The color-temperature adjustable led lighting device includes: a power supply module, a micro-control unit (mcu), an adjustable led driving power supply having a positive output terminal and a negative output terminal, a cool white led array, a warm white led array, a first switch circuit, a second switch circuit, a first current detection circuit, and a second current detection circuit.
Sengled Co., Ltd.

Led lighting device

A light emitting diode (led) lighting device includes a circuit for receiving an input power from a power source and outputting a rectified power, an led unit including a plurality of led channels connected in series, each led channel having a front end and a rear end, a current sensing resistor, and a switch circuit unit. The switch circuit unit includes a plurality of switches, and an nth switch is connected to the rear end of an nth led channel so as to control an operation of the nth led channel, and is controlled by a sum of a current of the nth switch and a current of an (n+1)th switch, which flows through the current sensing resistor.
Lumens Co., Ltd.

Laser-based devices utilizing multiple laser beams

A laser-based device or sensor includes: a first laser transmitter having a first self-mix carrier frequency; a second laser transmitter having a second, different, self-mix carrier frequency; a first monitor photodiode to receive a first optical signal from the first laser transmitter, and to output a first electric signal; a second monitor photodiode to receive a first optical signal from the second laser transmitter, and to output a second electric signal; an electric connection to connect together the first electric signal and the second electric signal, forming a combined electric signal; a single laser receiver to receive the combined electric signal and to generate from it a spectrum that corresponds to both (i) self-mix signal of the first laser transmitter, and (ii) self-mix signal of the second laser transmitter. Alternatively, a single monitor photodiode is used, receiving self-mix signals from multiple laser transmitters, and outputting a single electric signal to a single laser receiver..
Vocalzoom Systems 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.

Image sensor floating diffusion boosting by transfer gates

A shared pixel includes a plurality of transfer gates coupled between respective photodiodes and a shared floating diffusion. Each transfer gate is coupled to receive a transfer control signal to independently control a transfer of the image charge from the corresponding photodiodes to the shared floating diffusion.
Omnivision Technologies, Inc.

High-bandwidth underwater data communication system

An apparatus is described which uses directly modulated ingan light-emitting diodes (leds) or ingan lasers as the transmitters for an underwater data-communication device. The receiver uses automatic gain control to facilitate performance of the apparatus over a wide-range of distances and water turbidities..
Fairfield Industries Incorporated

Energy collection

An electro-hydrodynamic energy collection system may collect and use the energy generated by an electric field. Collection fibers are suspended from a support system.
Ion Power Group Llc

Tunable voltage regulator circuit

A voltage regulator has an output driver current mirror circuit and one or more control circuits. The output driver current mirror circuit includes an output driver transistor, a tunable resistance circuit, and a diode-connected transistor.
Nxp Usa, Inc.

Multilevel converter with energy storage

A multilevel power converter includes at least one phase leg. The phase leg includes a plurality of cascaded chain link connected cells, each cell including a capacitor and two semiconductor switches in series, each with an anti-parallel connected diode.
Abb Schweiz Ag

Driver circuit, circuit arrangement comprising a driver circuit, and inverter comprising a circuit arrangement

The disclosure discloses a driver circuit that is intended for a power semiconductor switch having a unidirectional flow direction and having a control connection, a reference potential connection and a controlled connection. The driver circuit includes a driver module having a control output, a reference potential input and an overvoltage monitoring input.
Sma Solar Technology Ag

Light emitting diode emergency light with transportation mode and operation method thereof

A light emitting diode (led) emergency light with transportation mode includes an alternating current (ac)-direct current (dc) led driving circuit, a light source, and an emergency module, wherein the emergency module includes a battery, the ac-dc led driving circuit is electrically connected to a terminal of the light source, and the emergency module is electrically connected to another terminal of the light source. After the emergency module generates a transportation mode signal, the led emergency light enters the transportation mode, and a power supply circuit within the emergency module utilizing the battery to drive the light source is turned off according to the transportation mode signal.
Xiamen Pvtech Co., Ltd.

Power control apparatus, power control system, and power control method

A power control apparatus includes a plurality of transformers configured to transform power generated by a plurality of solar cell strings, and a controller configured to control the transformers. The transformers each include a diode configured to prevent a reverse flow of power to be output from the transformer itself and a switch configured to open or close a connection between the solar cell string and an inverter.
Kyocera Corporation

Semiconductor laser oscillator

A semiconductor laser oscillator includes laser diode modules. A temperature sensor directly or indirectly detects a temperature of at least one of the laser diode modules.
Amada Holdings Co., Ltd.

Methods of forming a polymeric thin film layer on an organic light-emitting diode substrate

The present teachings relate to various embodiments of methods for forming organic polymer thin films on a device substrate using an ink composition, which once printed and cured forms an organic thin film on the substrate. The ink composition include one or more a neopentyl glycol-based di(meth)acrylate monomers..
Kateeva, Inc.

Thin-film package for organic light-emitting diode, organic light-emitting diode, and organic light-emitting display

The present invention relates to a thin-film package for an organic light-emitting diode, an organic light-emitting diode using the thin-film package, and an organic light-emitting display. The thin-film package includes at least one inorganic film layer and at least one organic film layer, the inorganic film layer and the organic film layer being alternately stacked; the inorganic film layer is made of a material selected from any one of poly(silicon nitride), poly(silicon oxide), poly(silicon carbonitride), poly(silicon carbooxide), poly(silicon carbonitride) and poly(silicon carbonitrideoxide), or any combination thereof; and the organic film layer is made of a material selected from any one of acrolein-based polymer, silicon-based polymer and epoxy-based polymer, or any combination thereof.
Everdisplay Optronics (shanghai) Limited

Core-shell nanowire, synthesizing the core-shell nanowire, and transparent electrode and organic light emitting diode including the core-shell nanowire

A nanowire according to an embodiment of the invention comprises a nanowire core and a metal-compound coated on the nanowire core, wherein the nanowire core comprises at least two bent portions, and wherein an angle (α) between an n-th wire portion and an (n+1)-th wire portion connected to the n-th wire portion through an n-th bent portion satisfies an inequation of 0<α<180°.. .
Duksan Hi-metal Co., Ltd.

Carbazole-based gumbos for highly efficient blue oleds

Various examples are provided for carbazole-based gumbos (group of uniform materials based on organic salts), and its application in organic light emitting diodes (oleds). In one example, a composition includes a solid phase carbazole-based gumbos (group of uniform materials based on organic salts) comprising a counterion such as, e.g., trifluoromethanesulfonate ([otf]), bis-(trifluoromethanesulfonyl)imide ([ntf2]), bis-(pentafluoroethylsulfonyl)imide ([beti]), tetrafluoroborate (bf4), hexa-fluorophosphate (pf6), and/or thiocyanate (scn).
Board Of Supervisors Of Louisiana State University And Agricultural And Mechanical College

Organic light emitting diode display

Disclosed is an organic light emitting diode (oled) display comprising a substrate; an organic light emitting element disposed on the substrate; an encapsulation substrate disposed on the organic light emitting element; and an adhesive layer formed on the substrate, covering the organic light emitting element, and bonding the substrate on which the organic light emitting element is formed with the encapsulation substrate.. .
Samsung Display Co., Ltd.

Light emitting diode chip and preparation method thereof

A method for preparing a light emitting diode chip, the method including: 1) providing a substrate; 2) growing an n-type semiconductor layer, an active layer and a p-type semiconductor layer on the substrate sequentially in that order; 3) forming a step including an upper horizontal end surface, a lower horizontal end surface and a step surface in the n-type semiconductor layer, the active layer and the p-type semiconductor layer; 4) growing a transparent conductive layer on the upper horizontal end surface, and forming an etching hole in the middle of the transparent conductive layer; 5) forming an n electrode on the lower horizontal end surface, and forming a p electrode in the etching hole; 6) growing a metal catalyst layer on the light emitting diode chip; and 7) forming a fluorinated graphene protective layer on the metal catalyst layer.. .
Hc Semitek Corporation

Light-emitting diode with transparent conductive electrodes for improvement in light extraction efficiency

A light-emitting diode device may include a conductive substrate, a metal reflection layer provided on the conductive substrate, a transparent insulating layer provided on the metal reflection layer, an n ohmic contact plug provided in a lower portion of each of through holes formed in the transparent insulating layer, an n-type gallium arsenide (gaas) plug provided in an upper portion of the through hole, an n cladding layer provided on the transparent insulating layer, an active layer provided on the n cladding layer, a p cladding layer provided on the active layer, a p-type gap window layer provided on the p cladding layer, a p ohmic contact pattern provided on the p-type gap window layer, a transparent conductive metal oxide pattern provided on the p ohmic contact layer, and a p electrode pad provided on the transparent conductive metal oxide.. .
Korea University Research And Business Foundation

Method for manufacturing light emitting diode device

According to one embodiment, a method for manufacturing an led device includes forming a laminated semiconductor layer including a gan layer of a first conductivity type, a gan-based luminous layer, and a gan layer of a second conductivity type stacked in this order on a surface of a substrate, forming a resist pattern on the laminated semiconductor layer, subjecting the laminated semiconductor layer to reactive ion etching using the resist pattern as a mask to selectively remove the laminated semiconductor layer to form an led element structure part and an electrode connection region, removing the resist pattern, and treating the substrate including the led element structure part and the electrode connection region with a first etching residue removing aqueous solution.. .
Kabushiki Kaisha Toshiba

Light emitting diode and fabrication method thereof

A light-emitting diode (led) chip includes from bottom to up: a conductive substrate, a p-type nitride layer, an active layer, an n-type recovery layer, an n-type nitride layer and an n electrode, wherein, the n-type nitride layer has a nitride polarity crystal and a gallium polarity crystal, and the surfaces of the nitride polarity and the gallium polarity regions appear different in height, the n-type recovery layer surface approximate to the n-type nitride layer has consistent mixed polarity with the n-type nitride layer, and the surface far from the n-type nitride layer is a connected gallium polarity surface.. .
Xiamen Sanan Optoelectronics Technology Co., Ltd.

Patterned sapphire substrate, light emitting diode and fabrication method thereof

A patterned sapphire substrate has a first surface and a second surface opposite to each other, in which, the first surface of the substrate is formed by arranging a plurality of interspaced patterns, wherein, the patterns have a top surface, a bottom surface and a plurality of side surfaces and at least one concave region sandwiched between the adjacent side surfaces and the top surface, where, depth and width of the concave region gradually decrease from the top to the bottom of the pattern. The concave region on the pattern surface of the patterned sapphire substrate enlarges light reflection area, thus improving light extraction efficiency of the patterned sapphire substrate..
Xiamen Sanan Optoelectronics Technology Co., Ltd.

Vertical gate guard ring for single photon avalanche diode pitch minimization

A photon detection device includes a single photon avalanche diode (spad) including a multiplication junction defined at an interface between n doped and p doped layers of the spad in a first region of a semiconductor layer. A vertical gate structure surrounds the spad in the semiconductor layer to isolate the spad in the first region from a second region of the semiconductor layer on an opposite side of the vertical gate structure.
Omnivision Technologies, Inc.

Super-junction schottky diode

The present invention relates to the field of semiconductor technology, particularly to a super-junction schottky diode. According to the present invention, the effective area of schottky junction is increased by forming the schottky junction in the trench located in the body of the device.
University Of Electronic Science And Technology Of China

Fin-based rf diodes

Methods for forming a fin-based rf diode with improved performance characteristics and the resulting devices are disclosed. Embodiments include forming fins over a substrate, separated from each other, each fin having a lower portion and an upper portion; forming sti regions over the substrate, between the lower portions of adjacent fins; implanting the lower portion of each fin with a first-type dopant; implanting the upper portion of each fin, above the sti region, with the first-type dopant; forming a junction region around a depletion region and along exposed sidewalls and a top surface of the upper portion of each fin; and forming a contact on exposed sidewalls and a top surface of each junction region..
Globalfoundries Inc.

Device isolator with reduced parasitic capacitance

Isolator structures for an integrated circuit with reduced effective parasitic capacitance. Disclosed embodiments include an isolator structure with parallel conductive elements forming a capacitor or inductive transformer, overlying a semiconductor structure including a well region of a first conductivity type formed within an tank region of a second conductivity type.
Texas Instruments Incorporated

Organic light emitting diode display

An organic light emitting display device comprises a common voltage line formed over a peripheral region of a substrate; a passivation layer formed over a pixel region of the substrate and the peripheral region; pixel electrodes formed over the pixel region; and a pixel defining layer formed over the pixel region and the peripheral region. The pixel defining layer defines pixel openings overlapping the pixel electrodes, respectively.
Samsung Display Co., Ltd.

Light emitting device and fabricating method thereof

A light emitting device includes a first electrode, an insulating layer, a second electrode, and a bar-type light emitting diode (led). The insulating layer includes a plurality of protruding parts protruding from the first electrode and at least one hole between the protruding parts.
Samsung Display Co., Ltd.

Circuit and controlling a spad array

A circuit may include an array of single photon avalanche diode (spad) cells, each spad cell configured to be selectively enabled by an activation signal. The circuit may include a control circuit configured to selectively enable a subset of the array of spad cells based on a measured count rate of the array of spad cells..
Stmicroelectronics (research & Development) Limited

Overvoltage protection device

An electrostatic discharge protection device includes the following successive structures: a very heavily-doped semiconductor substrate of a first conductivity type; a first heavily-doped buried semiconductor layer of a second conductivity type; a first lightly-doped semiconductor layer of the second conductivity type; and a second heavily-doped layer of the first conductivity type. The device further includes, located between first heavily-doped buried semiconductor layer and the first lightly-doped semiconductor layer, a third doped layer of the first conductivity type having a thickness and a dopant atom concentration configured to form, at a junction of the first lightly-doped semiconductor layer and the third layer, a diode having a reverse punchthrough operation..
Stmicroelectronics (tours) Sas

Semiconductor device and forming vertical one-time-programmable fuse

A vertical otp fuse formed in a semiconductor device has a substrate and an insulating layer formed over the substrate with an opening through the insulating layer extending to the substrate. A conductive layer, such as silicide, is formed over a sidewall of the opening.
Semiconductor Components Industries, Llc

Top contact resistance measurement in vertical fets

A test device includes a diode junction layer having a first dopant conductivity region and a second dopant conductivity region formed within the diode junction layer on opposite sides of a diode junction. A first portion of vertical transistors is formed over the first dopant conductivity region as a device under test, and a second portion of vertical transistors is formed over the second dopant conductivity region.
International Business Machines Corporation

Top contact resistance measurement in vertical fets

A test device includes a diode junction layer having a first dopant conductivity region and a second dopant conductivity region formed within the diode junction layer on opposite sides of a diode junction. A first portion of vertical transistors is formed over the first dopant conductivity region as a device under test, and a second portion of vertical transistors is formed over the second dopant conductivity region.
International Business Machines Corporation

Low-power-consumption active noise-reduction in-ear music earphone and noise reduction

An earphone and a method for noise reduction in the earphone are disclosed in the present invention. The earphone includes: an audio circuit configured for outputting an audio signal; a noise cancellation circuit configured for detecting an ambient noise signal, determining phase of the ambient noise signal and reversing such phase to generate an anti-noise signal having same level and opposite phase as that of the ambient noise signal; a combiner unit configured for combining the audio signal with the anti-noise signal to generate a combined signal; a speaker electrically connected to the combiner unit and configured for receiving and outputting the combined signal; wherein, the combiner unit includes a first diode and a second diode electrically connected to the speaker in parallel; the audio circuit is electrically connected to the first diode; and, the noise cancellation circuit is electrically connected to the second diode..
Shenzhen Aerospace Golden Shine Technology Co., Ltd

Display apparatus and operating the same

A display apparatus includes a display panel and a panel driver. The display panel includes a first pixel including a first organic light emitting diode (oled).
Samsung Display Co., Ltd.

Apparatus for data retention and supply noise mitigation using clamps

An apparatus is provided which comprises: a first power gate transistor coupled to an ungated power supply node and a gated power supply node, the first power gate transistor having a gate terminal controllable by a first logic; and a second power gate coupled to the ungated power supply node and the gated power supply node, the second power gate transistor having a gate terminal controllable by a second logic, wherein the first power gate transistor is larger than the second power gate transistor, and wherein the second logic is operable to: weakly turn on the second power gate, fully turn on the second power gate, turn off the second power gate, and connecting the second power gate as diode.. .
Intel Corporation

Laser-diode, liquid-crystal projector

The present invention relates to a laser-diode, liquid-crystal projector. In the present invention, a light source comprises a g laser diode emitting green light, a b laser diode emitting blue light, and an r laser diode emitting red light and provided such that a power application pin is positioned vertical to the power application pin of the g laser diode or b laser diode, and an optical structure appropriate therefor is proposed.
Cremotech Co., Ltd.

Diode light source for a projector

A projector includes a diode light source for a projector. The light source comprises at least first, second, and third diode matrices respectively delivering at least first, second, and third light bundles at separate wavelengths and of determined dimensions.
Xyzed

Head-mounted display with off-board illumination

Techniques of providing illumination to a head-mounted display (hmd) involve providing off-board illumination apart from the hmd. An off-board illumination unit delivers the illumination to the hmd via optical fibers.
Google Inc.

Lidar system

A lidar system with a pulsed laser diode configured to produce an optical seed pulse of light at an operating wavelength between approximately 1400 nm and approximately 1600 nm. The lidar system may also include an optical amplifier configured to amplify the optical seed pulse to produce an eye-safe output optical pulse that is emitted into a field of view.
Luminar Technologies, Inc.

Gas measurement system

Presented herein are systems and methods for quantifying trace and/or ultra-trace levels of a species—for example, h2s or h2o—in a natural gas line. The systems and methods employ a tunable laser, such as a tunable diode laser, vertical-cavity surface-emitting laser (vcsel), external cavity diode laser or a vertical external-cavity surface-emitting laser (vecsel) or a tunable quantum cascade laser (qcl).
Mks Instruments, Inc.

Led lamp with a flexible heat sink

An led lamp uses a flexible metal belt as a heat sink. At least one light emitting diode is attached to a circuit board that is mounted on a heat conducting member.
Putco, Inc.

Apparatus with light emitting or absorbing diodes

An exemplary printable composition of a liquid or gel suspension of diodes generally includes a plurality of diodes, a first solvent and/or a viscosity modifier. An exemplary apparatus may include: a plurality of diodes; at least a trace amount of a first solvent; and a polymeric or resin film at least partially surrounding each diode of the plurality of diodes.
Nthdegree Technologies Worldwide Inc.

Conjugated polymer containing ethynyl crosslinking group, mixture composition, organic electronic device continaing the same and application therof

Provided are a conjugated polymer containing ethynyl crosslinking group, mixture, formulation, organic electronic device containing the same and application thereof. The conjugated polymer material has a conjugated main chain structure and an ethynyl crosslinking group as a functional side chain.
Guangzhou Chinaray Optoelectronic Materials Ltd.

Hair growth stimulating band

The current invention includes a device and method for the promotion and stimulation of hair growth using one or more light sources such as a diode laser, each light source operating at a low wattage, collectively less than about 1000 mw, with the power level typically being in the region of 500 mw, in the infrared range at wavelengths in a range from about 2500 nm to about 10,000 nm. A diode laser operating in this range will have a greater dispersion rate than heretofore, thus requiring fewer diodes to cover the same area of scalp with less power required per diode laser..

Scatter estimation and/or correction in x-ray imaging

Disclosed are methods and devices for estimating object scatter and/or internal scatter in a multi-level photon-counting x-ray detector, as well as x-ray tomographic imaging while correcting for object and internal scatter. The x-ray detector has at least two layers of detector diodes mounted in an edge-on geometry, e.g.
Prismatic Sensors Ab

Compact low-cost fiberless diffuse speckle contrast flow-oximeter

A low-cost compact fiberless diffuse speckle contrast flowmeter includes a small laser diode and a 2-dimensional imaging device such as a charge coupled device (ccd) or complementary metal oxide semiconductor (cmos) for directly contacting the tissue and measuring a parameter such as blood flow in a deep/thick volume of tissue (up to 10 mm depth). The small laser diode is fixed at a certain distance (0 to 20 mm) from the imaging device and directly contacts the tissue.
University Of Kentucky Research Foundation

Light maintenance system

Lighting systems maintain the quantitative and/or qualitative output of a light as the light ages, while also limiting the power consumed by the light, for example by increasing this power limit as the light ages. Some lighting systems compensate for reduction of spectral output as the light ages by activating compensating light emitting diodes within a light, which compensating light emitting diodes produce a spectral output that supplements the light's output at the frequencies at which spectrum has been reduced.

Light-emitting diode (led) light sets

Apparatuses and systems are provided for changing the spectrum of light emission from a light-emitting diode (led) light set. The led light set may include leds, each of which having at least a first led chip and a second led chip configured to emit light at differing wavelengths.

Light-emitting diode (led) light sets

Apparatuses and systems are provided for changing the spectrum of light emission from a light-emitting diode (led) light set. The led light set may include leds, each of which having at least a first led chip and a second led chip configured to emit light at differing wavelengths.

Load control device for a light-emitting diode light source

A load control device for controlling the intensity of a lighting load, such as a light-emitting diode (led) light source, may include a power converter circuit operable to receive a rectified ac voltage and to generate a dc bus voltage, a load regulation circuit operable to receive the bus voltage and to control the magnitude of a load current conducted through the lighting load, and a control circuit operatively coupled to the load regulation circuit for pulse width modulating or pulse frequency modulating the load current to control the intensity of the lighting load to a target intensity. The control circuit may control the intensity of the lighting load by pulse width modulating the load current when the target intensity is above a predetermined threshold and control the intensity of the lighting load by pulse frequency modulating the load current when the target intensity is below the predetermined threshold..
Lutron Electronics Co., Inc.

Light-emitting diode arrangement

In various embodiments, a light-emitting diode arrangement is provided. The light-emitting diode arrangement includes a first substrate with a first light-emitting diode which is arranged on the first substrate such that light emitted by it radiates in a main emission direction of the light-emitting diode arrangement, and a second substrate with a second light-emitting diode which is arranged on the second substrate such that light emitted by it radiates in the main emission direction of the light-emitting diode arrangement.
Osram Gmbh

Pixel unit for an image sensor, image sensor, sensing a light signal, controlling a pixel unit, and generating an image using a pixel unit

A pixel unit for an image sensor. The pixel unit includes a photodiode for converting alight signal into a processing signal, a multiplexer unit that is designed for using the processing signal to generate at least a first multiplexer signal and a second multiplexer signal that deviates therefrom, and a storage device having at least a first storage unit for buffer storing a time-limited integral value of the first multiplexer signal and a second storage unit for buffer storing a time-limited integral value of the second multiplexer signal.
Robert Bosch Gmbh

Circuits for self-powered image sensors

Circuits for self-powered image sensors are provided. In some embodiments, an image sensor is provided, the image comprising: a plurality of pixels, each of the plurality of pixels comprising: a photodiode having an anode and a cathode connected to a ground voltage; a first transistor having: a first input connected to the anode of the photodiode; a first output connected to a reset bus; and a first control configured to receive a discharge signal; and a second transistor having: a second input connected to the anode of the photodiode; a second output connected to a pixel output bus; and a second control configured to receive a select signal; and a third transistor having: a third input coupled to each first output via the reset bus; a third output configured to be coupled to an energy storage device; and a third control configured to receive an energy harvest signal..





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