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Backlight Unit patents



      
           
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Display apparatus and method of manufacturing the same

Backlight unit

Display device

Date/App# patent app List of recent Backlight Unit-related patents
07/17/14
20140200069
 Backlight unit and liquid crystal display device and gaming machine including same patent thumbnailBacklight unit and liquid crystal display device and gaming machine including same
A gaming machine includes: a liquid crystal panel; a backlight unit which is disposed behind the liquid crystal panel; and one or more reels which are disposed behind the backlight unit and on which a plurality of symbols are displayed. The backlight unit includes: a light switch plate which is formed such that a predetermined area corresponding to a symbol selection area where selected symbols among the plurality of symbols displayed on the reel can be selectively turned to be transparent or nontransparent using a polymer dispersed liquid crystal; a half mirror which is disposed behind the light switch plate; a first light source which is disposed in front of the half mirror and emits light passing through the light switch plate and progressing forward; and a second light source which is disposed behind the half mirror and emits lights..
07/17/14
20140198283
 Display apparatus and method of manufacturing the same patent thumbnailDisplay apparatus and method of manufacturing the same
A display apparatus includes a backlight unit generating light and a display substrate displaying an image using the light. The display substrate includes a substrate, a first electrode, a light blocking layer, a thin film transistor, a second electrode, a liquid crystal and a color filter.
07/10/14
20140192556
 Backlight unit patent thumbnailBacklight unit
A back light unit includes a light source and a light guide unit having a first surface emitting light to a display panel, a second surface facing the first surface, and a plurality of connecting surfaces connecting the first surface and the second surface. The connecting surfaces includes a first side surface, a second side surfaces and a third side surface between the first side surface and a second side surface, a first included angle of the first incident surface and the first diffusion surface is equal to or greater than about 90 degree..
07/10/14
20140192287
 Display device patent thumbnailDisplay device
A display device includes a display panel including a transistor and a backlight unit providing light to the display panel. The transistor includes a transparent substrate that the backlight unit faces.
07/10/14
20140192102
 Backlight unit and display device having the same patent thumbnailBacklight unit and display device having the same
A backlight unit includes a power converter configured to generate a light source driving voltage in response to a voltage control signal, a plurality of light emitting diode strings, where each of the light emitting diode strings receives the light source driving voltage through a first terminal thereof, a plurality of transistors corresponding to the light emitting diode strings, where each of the transistors includes: a first electrode connected to a second terminal of a corresponding light emitting diode string thereof; a second electrode; and a control electrode, and a controller connected to the control electrode and the second electrode, where the controller outputs a plurality of current control signals to control electrodes of the transistors and generate the voltage control signal, where the controller generates an over-current detection signal when any one of the current control signals has a pulse width greater than a predetermined reference width.. .
07/03/14
20140185323
 Anisotropic heat dissipation in a backlight unit patent thumbnailAnisotropic heat dissipation in a backlight unit
A backlight unit with a light source, a light guiding plate, a reflective film and an anisotropic heat dissipation layer is disclosed. At least some embodiments provide a display panel including the backlight unit and methods for reducing the temperature of a backlight unit by the anisotropic heat dissipation layer..
07/03/14
20140184980
 Display device patent thumbnailDisplay device
A liquid crystal display device 1 comprises a liquid crystal display panel 4, a backlight unit 20 emitting light toward the liquid crystal display panel 4, control substrates 9 for controlling the liquid crystal display panel 4 and the backlight unit 20, and an outer cover 2 containing the liquid crystal display panel 4, the backlight unit 20, and the control substrates 9. The control substrates 9 are arranged on the side opposite to the side including the display panel 4 with respect to the backlight unit 20, and the liquid crystal display device 1 further comprises a heat insulating frame 6, which is disposed between the backlight unit 20 and the control substrates 9, and which forms a space covering one surface of the backlight unit 20 on the side facing toward the control substrates 9..
07/03/14
20140184973
 Liquid crystal display patent thumbnailLiquid crystal display
A liquid crystal display includes: a first insulation substrate; a plurality of color filters positioned on the first insulation substrate; a plurality of gate lines and a plurality of data lines positioned on the plurality of color filters; a plurality of thin film transistors positioned on the plurality of color filters and connected to the plurality of gate lines and the plurality of data lines; a plurality of pixel electrodes connected to the plurality of thin film transistors; a second insulation substrate facing the first insulation substrate; a liquid crystal layer positioned between the first insulation substrate and the second insulation substrate; and a backlight unit positioned behind the second insulation substrate, wherein the thin film transistors are not formed on the second insulation substrate and anti-glare elements are provided in front of at least one of the data lines and gate lines for respectively reducing or preventing the reflection of ambient light to a user from the data lines or the gate lines respectively.. .
07/03/14
20140184485
 Backlight driver of liquid crystal display device and method of driving the same patent thumbnailBacklight driver of liquid crystal display device and method of driving the same
A backlight driver and a method of driving the same are disclosed. The backlight driver includes a vertical synchronization signal filter for generating a second vertical synchronization signal based on an input first vertical synchronization signal, and selecting one of the first vertical synchronization signal and the second vertical synchronization signal as a third vertical synchronization signal according to whether a period difference between adjacent first vertical synchronization signals satisfies a preset threshold range, a duty ratio detector for detecting a duty ratio of an input pulse width modulation (pwm) signal, a pwm generator for generating an output pwm signal synchronized with the third vertical synchronization signal output from the vertical synchronization signal filter and having the duty ratio and outputting the output pwm signal to a backlight unit..
06/26/14
20140176869
 Liquid crystal display device patent thumbnailLiquid crystal display device
An lcd device includes a liquid crystal panel; a backlight unit disposed at a rear side of the liquid crystal panel and including an led assembly and a light guide plate, wherein the light guide plate has a first surface facing the led assembly and a second surface opposite to the first surface; a cover bottom including a horizontal plane over which the backlight unit is disposed and a side perpendicular to the horizontal plane; a guide panel including a side wall and a horizontal portion, wherein the side wall has a first vertical portion surrounding an outer surface of the side of the cover bottom, and the horizontal portion is vertically bent from the first vertical portion and supports the liquid crystal panel, wherein at least one elastic stopper is formed at the side wall and contacts the second surface.. .
06/26/14
20140176868
Light guide plate with blunt edges
Electronic devices may include displays. A display may include display layers having an array of display pixels and a backlight unit that provides backlight illumination to the display pixels.
06/26/14
20140176864
Backlight unit for liquid crystal display device
A backlight unit for a liquid crystal display device includes a cover bottom including a horizontal plane and sides perpendicular to the horizontal plane; guides disposed at inner surfaces of the sides of the cover bottom and each including first, second and third portions, wherein the second portion protrudes from the first portion, and the third portion protrudes from the second portion and has elasticity; a reflection sheet disposed on the first portions; a light guide plate disposed over the reflection sheet and on the second portions; an led assembly disposed at a first side of the light guide plate; and optical sheets disposed over the light guide plate.. .
06/26/14
20140176863
Liquid crystal display device
A liquid crystal display device provided with a liquid crystal display panel having a pair of transparent substrates disposed to face with each other via a liquid crystal layer, and a backlight unit disposed on a back surface of the liquid crystal display panel for radiating a backlight ray is configured to have a plate member opposite a side wall surfaces of the liquid crystal display panel and a side wall surfaces of the backlight unit. The plate member is fixed to the side wall surface of the liquid crystal display panel and the side wall surface of the backlight unit..
06/26/14
20140176861
Backlight unit and liquid crystal display device including the same
A backlight unit according to an embodiment includes: a light guide plate; a light emitting diode (led) assembly supplying a light to the light guide plate; and a reflecting plate under the light guide plate, wherein the led assembly includes: an led printed circuit board (pcb) disposed at a side of the light guide plate; a plurality of led chips over the led pcb, the plurality of led chips spaced apart from each other; a plurality of first lead frames electrically connecting the led pcb and the plurality of led chips; and an led housing surrounding the plurality of led chips and the plurality of first lead frames.. .
06/26/14
20140176852
Liquid crystal display device
A liquid crystal display device includes a bottom cover including a horizontal surface, and a side surface; a first guide panel coupled with the bottom cover, surrounding peripheral portions of a backlight unit using a first vertical portion, and including a first horizontal portion protruding perpendicularly toward an inner side of the first vertical portion; and a second guide panel including a second vertical portion placed right on an outer side surface of the first vertical portion, and a second horizontal portion protruding perpendicularly toward an inner side of the second vertical portion and onto a top surface of which the liquid crystal panel is fixed, wherein a rib protrudes at a top surface of the first horizontal portion, and a rib groove, into which the rib is inserted, is formed at a bottom surface of the second horizontal portion.. .
06/26/14
20140176413
Display panel and display apparatus having the same
A display panel provided with light from a backlight unit, the display panel including: an upper substrate; a lower substrate disposed to face the upper substrate; a liquid crystal layer disposed between the upper substrate and the lower substrate; a lower polarizing layer formed on one surface of the lower substrate and polarizing-filtering the light from the backlight unit; an upper polarizing layer formed on one surface of the upper substrate and polarizing-filtering the light passing through the liquid crystal layer; and a color filter layer formed on one surface of the lower substrate and the upper substrate and filtering light so that lights of a plurality of preset colors are emitted, wherein each of the lower polarizing layer, the upper polarizing layer, and the color filter layer comprises a linear pattern.. .
06/19/14
20140168573
Backlight unit and liquid crystal display device comprising the same
Disclosed are a backlight unit and a liquid crystal display device including the same with a light guide plate of a reduced size to enable driving at a low power and manufacture at a low cost despite using fewer light sources, and realizing high-brightness and high quality-driving. The backlight unit includes a lower case having a bottom surface and side walls extending upward extended from edges of the bottom surface.
06/19/14
20140168564
Curved liquid crystal display device
A curved liquid crystal display device includes a liquid crystal display panel, a backlight unit, a bottom cover and a reinforcement frame. The liquid crystal display panel includes a thin film transistor substrate and a color filter substrate.
06/19/14
20140168534
Display apparatus and method of manufacturing the same
A display apparatus includes a display panel including a protective electrode and a ground pad that is applied with a ground voltage, a conductive member electrically connecting the ground pad and the protective electrode, a backlight unit providing light to the display panel, a bottom chassis accommodating the backlight unit, and at least one fixing member fixing a side portion of the display panel and a side portion of the bottom chassis to each other. The fixing member makes contact with the conductive member and the bottom chassis to electrically connect the conductive member and the bottom chassis..
06/19/14
20140167594
Side-emitting led lens and backlight unit and display device having the same
A side-emitting led lens includes a bottom surface having an incident surface through which light from the led enters, a top surface that reflects light, and a side surface which connects the bottom surface to the top surface, and through which light exits the lens. Within the incident surface, a central area directs light emitted from the led to the top surface by refracting the light in a direction away from the optical axis, whereby the height of the lens can be reduced.
06/12/14
20140160733
Light emitting device, illuminating apparatus, and display apparatus
There are provided a light-emitting device, an illuminating apparatus, and a display apparatus in which, in order to apply light to an object to be illuminated with uniformity in light intensity, the quantity of light which is applied to a part of an edge of a to-be-illuminated region of the to-be-illuminated object located near a light-emitting section can be lessened. A backlight unit includes a printed substrate, a plurality of light-emitting sections each of which has a base support, an led chip and a lens, and reflective members each of which is placed around the light-emitting section and has a first wall portion and a second wall portion..
06/12/14
20140160732
Light-emitting device, backlight unit, and display device
The present invention provides a light-emitting device including a lampshade and a set of light sources arranged within the lampshade. Wherein the lampshade includes a set of light-reflecting structures, each light-reflecting structure in the set of light-reflecting structures is used for respectively reflecting rays in a middle portion of light emitted from a light source corresponding to the light-reflecting structure towards two sides of the corresponding light source.
06/12/14
20140160574
Optical sheet, backlight unit including the same, and display apparatus including the same
An optical sheet includes: a base film comprising a rear surface upon which light is incident, a front surface facing the rear surface for emitting the light, and a side surface connecting the rear and front surfaces to each other; and a light collection section in which prisms formed by coupling a plurality of prism units to each other are arranged on the front surface of the base film and integrated with the base film. One end surface of each prism unit has a semicircular shape.
06/12/14
20140160397
Blacklight unit, liquid crystal display device having the same and fabrication method thereof
A backlight unit and a liquid crystal display device having the same which may facilitate control of output light through a light guide plate, improve light concentration effect, and reduce moire. The backlight unit includes light sources generating light, a light guide plate guiding light through an incidence surface opposite the light sources, emitting the light through an emission surface, and having lower patterns of a prism shape formed on the lower surface of the light guide plate opposite the emission surface by inclined surfaces and sub-inclined surfaces, and at least one optical sheet stacked on the emission surface..
06/12/14
20140160396
Display panel and display apparatus having the same
A display panel of a display apparatus including the display panel and a backlight unit configured to provide light to the display panel, the display panel including: an upper substrate; a lower substrate; a liquid crystal layer between the upper substrate and the lower substrate; a wire grid polarizer (wgp) provided on at least one from among the lower substrate and the upper substrate and configured to filter light radiated from the backlight unit; and an antireflection layer provided on the upper substrate and configured to substantially prevent reflection of external light from an external source on a surface of the upper substrate. The wgp may include a light absorption layer configured to absorb the external light which passes through the antireflection layer..
06/12/14
20140158982
Light-emitting device, backlight unit, display device, and manufacturing method thereof
A light emitting device may include: a light emitting unit; a wavelength conversion unit disposed in a path of light emitted from the light emitting unit and converting a wavelength of light emitted from the light emitting unit; and a light transmission unit formed on at least one side of the wavelength conversion unit. The wavelength conversion unit may include a first quantum dot converting a wavelength of light into red light and a second quantum dot converting a wavelength of light into green light, and the patterns of first quantum dot and second quantum dot are alternately disposed repeatedly at least one or more times..
06/05/14
20140153284
Light source device of backlight unit for display
A light source device of a backlight unit in which a circuit board on which light-emitting diodes (leds) are mounted is disposed inside a rear cover and a heat dissipating means for dissipating heat generated from the leds to an outside is disposed between the rear cover and the circuit board. The circuit board is implemented as a patterned substrate which includes a thin sheet and a conductive pattern formed on the thin sheet, the conductive pattern connecting the leds to a power source, thereby reducing a thickness through which the heat generated by the leds is to be conducted to the heat dissipating means.
06/05/14
20140153281
Backlight unit and display device
The present invention provides a backlight unit including a light source and a light guide plate, wherein the backlight unit further includes a set of reflectors, the set of reflectors includes a first reflector and a second reflector, the first reflector is arranged at a side of the light guide plate, the second reflector is arranged at the back of the light guide plate, the light source is arranged below the first reflector, the first reflector is used for reflecting light emitted from the light source into the light guide plate, and light exits from the front of the light guide plate after being scattered by the light guide plate and being reflected by the second reflector. Correspondingly, a display device including the backlight unit is provided.
06/05/14
20140153221
Printed circuit board, and lighting device and backlight unit including the same
Provided is a printed circuit board including: a support substrate including a first area in which a light emitting device is mounted, and a second area extending from the first area; a bending part which is configured such that a part between the first area and the second area is bent; a through hole passing through the bending part; a connection wiring connected to the light emitting device and disposed on the bending part; and a wiring connected to the connection wiring.. .
06/05/14
20140153213
Display device
A display device includes: a display panel assembly; and a backlight unit. The backlight unit includes an optical sheet, a reflective sheet and a light source.
06/05/14
20140153212
Hybrid backlight unit embeddable in liquid crystal display and method for fabricating the same
A hybrid backlight unit embeddable in liquid crystal display and method for fabricating the same is disclosed. The hybrid backlight unit uses chemically toughened glass as substrate, which, after optical layers are stacked thereon using photochemical lithography and coating-printing process, laminates with a polarizing film to form an optical substrate with hybrid planar light source capable of producing polarization effect.
06/05/14
20140152720
Liquid crystal display device and method of driving the same
Disclosed are a liquid crystal display device and a drive method thereof. The liquid crystal display device includes a liquid crystal panel having a plurality of pixel areas to display an image, a data driver configured to drive data lines of the liquid crystal panel, a dimming controller configured to generate a dimming value via modulation using any one value within the range from an average gray-level value to a maximum gray-level value of image data input from an external source, and output the image data via modulation and control drive time of a backlight unit based on the dimming value, a timing controller configured to allow transmission of the image data modulated by the dimming controller to the data driver, and to control the data driver, and the backlight unit configured to emit light to the liquid crystal panel in response to a drive signal from the dimming controller..
05/29/14
20140147645
Resin composition for a surface treatment, and steel sheet coated with same
Provided are a resin composition for surface treatment and a surface-treated steel sheet coated therewith. The resin composition for surface treatment includes a dispersing element having excellent thermal conductivity and heat dissipation, thereby maintaining physical properties of the conventional anti-fingerprint steel sheet, for example, high whiteness, fingerprint resistance, workability, electric conductivity and alkali resistance, and providing heat dissipation.
05/29/14
20140146564
Backlight unit and display apparatus having the same
A backlight unit includes a light source part, a light guide plate, a prism sheet, and a reflecting element. The light source part is configured to provide light.
05/29/14
20140146562
Illumination device and display device
A backlight unit comprises a light source, a light guide plate and a frame. The light guide plate comprises a light guide and a low-refractive-index layer.
05/29/14
20140146560
Reflection sheet, backlight unit, liquid crystal display device, and manufacturing method thereof
A reflection sheet of display backlighting unit is designed to be spaced apart by a predetermined gap distance from an overlying optical layer. However, the reflection sheet may inadvertently come into at least partial contact with the overlying optical layer.
05/29/14
20140146522
Backlight unit and display device having the same
A backlight unit includes a light source part configured to emit a light and a reflective sheet disposed under the light source part. The light source part includes a first light source block including a plurality of light sources with first distances therebetween and a second light source block including a plurality of light sources with second distances therebetween.
05/29/14
20140146269
Liquid display apparatus
A liquid crystal display includes a support frame having a partitioned storage space; a backlight unit disposed in the storage space; a liquid crystal display panel disposed over the backlight unit and spaced apart from the backlight unit by a gap; and a cover window combined with the support frame such that the liquid crystal display panel is attached to the cover window.. .
05/29/14
20140146251
Three-dimensional image display device and driving method thereof
A 3d image display device includes: a backlight unit including a first color light source and a second color light source, which are alternately turned on; a display panel on a front side of the backlight unit and including a pixel, where the pixel includes a first subpixel including a first color filter and a second subpixel including a second color filter; a patterned circular polarizer on a front side of the display panel, extending substantially in a first direction, and including a first circular polarization part and a second circular polarization part having widths substantially the same as widths of the first subpixel and the second subpixel, respectively; and glasses including a left lens and a right lens, where each of the left lens and the right lens includes a plurality of circular polarization patterns and a shutter glass panel which turns on and off each circular polarization pattern.. .
05/29/14
20140145626
Backlight unit and display device having the same
In a display device, a backlight unit including a power converter configured to generate a light source driving voltage in response to a voltage control signal, a plurality of light emitting diode strings each configured to receive the light source driving voltage through an end thereof, and a controller connected to the other end of each of the plurality of light emitting diode stringsand configured to generate a plurality of current control signals used to control a current flowing through each of the plurality of light emitting diode strings and the voltage control signal. The controller is configured to generate the voltage control signal in response to a current control signal from among the plurality of current control signals, which is applied to a light emitting diode string configured to receive a lowest forward driving voltage among the plurality of light emitting diode strings..
05/22/14
20140140095
Illumination device and display device
Provided is an illumination device for obtaining planar light having satisfactory uniformity and suppressed brightness irregularities. A backlight unit (illumination device) (20) comprises a light source and a light-guiding element (23) for guiding light from the light source.
05/22/14
20140140046
Light-emitting device and display apparatus
There are provided a light-emitting device for use in a backlight unit of a display apparatus equipped with a display panel, which can be made lower in profile and is capable of applying light to the display panel with uniformity in the brightness of the display panel in a planar direction of the display panel, as well as a display apparatus equipped with the light-emitting device. A backlight unit includes a plurality of light-emitting devices each having a printed substrate, a base support, an led chip and a lens, and a reflective member surrounding the light-emitting device.
05/22/14
20140140043
Backlight unit and display device
Disclosed are a backlight unit and a display device. The backlight unit includes a bottom cover including first and second longer sides and first and second shorter sides, a light emitting module disposed on at least one of the first and second longer sides and the first and second shorter sides in the bottom cover, a light guide plate having at least a part disposed on the light emitting module in the bottom cover, an optical sheet on the light guide plate, a support member connected to the bottom cover and having at least a part disposed on the optical sheet, and a top cover disposed on the support member and connected to the bottom cover..
05/22/14
20140139785
Two-way display device and method of driving the same
A two-way display device includes a transparent display panel, a roll film unit disposed opposite to the transparent display panel and a backlight unit disposed between the roll film unit and the transparent display panel.. .
05/22/14
20140139499
Redundant operation of a backlight unit of a display device under a shorted led condition
Disclosed embodiments relate to techniques for operating a backlight unit of a display device in a redundant mode and a non-redundant mode in the event of a shorted led failure condition. For instance, in a redundant mode, multiple led strings arranged in an end-to-end configuration are each driven to provide a first quantity of light, such that the combined output from all led strings is capable of providing a total light output corresponding to a maximum brightness setting for the display device.
05/22/14
20140139498
Redundant operation of a backlight unit of a display device under open circuit or short circuit led string conditions
Disclosed embodiments relate to techniques for operating a backlight unit of a display device in a redundant mode and a non-redundant mode in the event of an open circuit condition or short string condition. For instance, in a redundant mode, multiple led strings are driven to provide a first quantity of light, such that the combined output from all led strings is capable of providing a total light output corresponding to a maximum brightness setting for the display device.
05/15/14
20140133178
Backlight unit and display device having the same
A display device includes a backlight unit generating light and a display panel displaying an image using the light from the backlight unit. The backlight unit includes a circuit board, a plurality of light emitting devices, a light guide member including a light incident surface, and a guide member disposed between a surface of the circuit board and the light incident surface.
05/15/14
20140133177
Lcd backlight component coatings for reducing light losses and improving in-stack light collimation
Provided are multilayer stacks for backlight units in lcd panels and methods for forming thereof. The stacks include refractive index matching layers and pressure sensitive adhesives to minimize light losses.
05/15/14
20140132888
Backlight unit and liquid crystal display apparatus
In order to prevent unevenness in planar light and reduce power consumption, a backlight unit a that emits planar light towards a front side thereof has a light-shielding part 500 provided on a package 50 at least on a front side of the backlight unit. The package 50 has an led module 5 that surrounds an led chip 51 that is a light source, and the light-shielding part 500 protrudes towards a light receiving face 22 of a light guide plate 2..
05/15/14
20140132158
Synchronized ambient light sensor and display
An electronic device may be provided that has a display. The display may produce light using a backlight unit or using an array of light-emitting display pixels.
05/08/14
20140126184
Backlight unit and display apparatus using the same
Disclosed are a backlight unit and a display apparatus using the same. The backlight unit includes first and second reflectors, a light source module, an optical member spaced apart from the second reflector, a first cover to come into contact with the second reflector and optical member, a second cover coupled to the first cover to support the light source module, and a third cover coupled to the first and second covers.
05/08/14
20140125913
Curved liquid crystal display device
A curved liquid crystal display device includes a liquid crystal display panel, a backlight unit, a bottom cover and a reinforcement frame. The liquid crystal display panel includes a thin film transistor substrate and a color filter substrate.
05/08/14
20140125910
Nanocrystal display
A nanocrystal display includes a display panel including a plurality of pixels; and a substrate including a plurality of pixel areas corresponding to the plurality of pixels, and a boundary area between the pixel areas. Each pixel includes a first electrode on an upper surface of the substrate and in a corresponding pixel area; a second electrode on the upper surface of the substrate and spaced apart from the first electrode in a cross-section direction, a tunnel-shaped cavity defined in the plurality of pixel areas and spaced apart from the substrate by a predetermined distance; and an image display layer in the tunnel-shaped cavity; and a backlight unit which provides a light to the display panel and faces the upper surface of the substrate..
05/08/14
20140125640
Transparent display apparatus and controlling method thereof
A transparent display apparatus and a controlling method thereof include a transparent display panel which displays an image, a backlight unit which provides backlight to the transparent display panel, an input unit which receives a user command, a power supply unit which supplies power to the transparent display apparatus, and a controller which controls the power supply unit to cut off power supply to the backlight unit if a preset command is input through the input unit, controls the transparent display panel to output a preset image, and controls the power supply unit to cut off power supply to the transparent display panel after a preset time has elapsed.. .
05/08/14
20140125251
Flat panel electronic device and current control system thereof
Embodiments of the present invention provide a flat panel electronic device and a current control system thereof. The current control system comprises: a detecting module for detecting a current in a main circuit of the flat panel electronic device; and a control mechanism for reducing a brightness level of a backlight unit of the flat panel electronic device when the current in the main circuit is larger than or equal to a threshold so that the current in the main circuit is reduced to be less than the threshold.
05/08/14
20140124121
Manufacture method of touch and display device
A manufacture method of a touch and display device includes following acts. An open cell is provided.
05/01/14
20140119049
Backlight unit and display apparatus having the same
A backlight unit includes a light source unit having a light source configured to emit a first light, a quantum dot sheet configured to emit a second light having a different color from the first light, a light guide plate configured to guide a light exiting from the light source unit or the quantum dot sheet, and an optical member including a prism sheet and configured to control the light exiting from the light guide plate. The quantum dot sheet includes a polymer resin and a plurality of first and second quantum dots, which are dispersed in the polymer resin.
05/01/14
20140118656
Liquid crystal display and manufacturing method thereof
A liquid crystal display includes a transparent insulation substrate, a first polarizer, and a semiconductor layer, a thin film transistor, and a backlight unit. The first polarizer is disposed on the transparent insulation substrate.
05/01/14
20140118614
Display device and home network system comprising display device
The present invention provides a display device, which comprises: a liquid crystal panel; a backlight unit configured to provide the liquid crystal panel with a light source; a digital interactive interface for video and audio configured to input/output all signals into/from the display device; a signal conversion module configured to convert the signal input via the digital interactive interface for video and audio into a first signal; a signal processing unit configured to adjust a resolution of the first signal converted by the signal conversion module to a predetermined resolution, convert the first signal whose resolution is adjusted to the predetermined resolution into a second signal for time-sequence control over the liquid crystal panel, and transmit the second signal to the liquid crystal panel; and a power source module configured to supply power to the liquid crystal panel, the backlight unit and the signal processing unit.. .
05/01/14
20140118531
Methods for assembling display structures
Electronic devices may include displays. A display may include a display unit that includes an array of display pixels and a backlight unit that provides backlight illumination for the display pixels.
05/01/14
20140118417
Backlight unit and display device
A backlight unit and a display device including the same are disclosed. The backlight unit includes a substrate and a plurality of light sources disposed on the substrate.
04/24/14
20140111972
Light source module and backlight unit having the same
A light source module includes a receiving container, a light source disposed in the receiving container and a filter filtering the light produced from the light source. A backlight unit includes a plurality of light source modules.
04/24/14
20140111742
Wire mesh type diffuser plate and method of fabricating the same, and liquid crystal display device having the wire mesh type diffuser plate
Disclosed are a wire mesh type diffuser plate, a method of fabricating the same, and a liquid crystal display device having the same. A film type diffuser plate having predetermined tension is fabricated through traction by using a wire mesh instead of a diffuser plate based on an existing extruding method to improve egg mura generated in a backlight unit.
04/24/14
20140111741
Liquid crystal display device
A liquid crystal display device includes: a liquid crystal panel outputting an image; a light guide plate installed below the liquid crystal panel to transfer light from a backlight unit to the liquid crystal panel; a plurality of optical sheets installed between the liquid crystal panel and the light guide plate; a reflective plate installed below the light guide plate; and a viewing angle control sheet installed between the liquid crystal panel and the optical sheet and having a diffractive pattern formed on an upper surface of a base film and a prism pattern formed on a lower surface of the base film to control a viewing angle. In the lcd device having a viewing angle controllable backlight unit, a viewing angle control sheet capable of freely controlling light output is manufactured by forming a diffractive pattern on an upper surface thereof and a prism pattern on a lower surface thereof, and an application of the viewing angle control sheet to a vehicle backlight unit provides viewing angle characteristics allow for optimum driving conditions..
04/24/14
20140111736
Curved display apparatus
A curved display apparatus includes a curved display panel, a curved bottom sash disposed at a rear of the display panel such that the curved bottom sash is spaced apart from the display panel, and a plurality of backlight units disposed at opposite inner sides of the bottom sash to irradiate light to the bottom sash. The inside of the bottom sash reflects the light irradiated from the backlight units to the display panel.
04/24/14
20140111735
Liquid crystal display apparatus
A liquid crystal display apparatus includes a display panel that displays an image, a backlight unit that provides a light to the display panel, and a frame that accommodates the display panel and the backlight unit. The backlight unit includes a light source that emits the light, a diffusion plate that diffuses the light from the light source, an optical sheet that condenses the diffused light and provides the condensed light to the display panel, and a clip that couples the diffusion plate and the optical sheet..
04/24/14
20140111734
Printed circuit board structure of backlight unit, backlight unit and liquid crystal display device using the same
A printed circuit board structure of a backlight unit is provided, which comprises a circuit board, having a first and a second lateral side corresponding to the first lateral side, wherein the first lateral side has a first notch and the second lateral side has a second notch. In addition, a backlight unit is provided, which comprises a back plate, a circuit board, and a plurality of leds.
04/24/14
20140111497
Backlight unit and display device including the same
A backlight unit includes a power supply converter including a primary winding connected to an input power supply voltage, and a secondary winding which is connected to an output node and outputs a light emitting diode drive voltage to the output node in response to a mode signal and a switching control signal; and a light emitting diode string connected to the output node of the power supply converter, where the power supply converter serially connects a boosting winding to the secondary winding and the output node and when the mode signal represents a three dimensional image display mode, and outputs a boosted light emitting diode drive voltage to the output node through the boosting winding.. .
04/17/14
20140104877
Backlight unit and display device including the same
A backlight unit includes a light guide plate; a light emitting unit configured to irradiate light toward a side portion of the light guide plate, the side portion comprising an upper side part and a lower side part; and a light controller of which at least a portion is in at least one from among the upper and the lower side parts of the side portion of the light guide plate. The light controller includes a first region overlapping the light guide plate and a second region not overlapping the light guide plate, and a reflectivity of the first region is different from a reflectivity of the second region..
04/17/14
20140104870
Prism sheet, backlight unit including the same, and method of manufacturing the same
A prism sheet includes: a first portion including a prism elongated in a first direction; and a second portion including a prism elongated in a second direction different from the first direction. The second direction is vertical to a light incident surface of a light guide plate of a backlight unit, a light source of the backlight unit faces the light indicent surface of the light guide plate, and the prism sheet overlaps a light emitting surface of the light guide plate..
04/17/14
20140104541
Backlight unit for display device and driving method thereof
A backlight unit for a display device includes a light source module which emits light, a light guiding plate which guides the light incident from the light source module toward a front surface thereof, and a light beam spread angle regulating sheet disposed between the light source module and a lateral surface of the light guiding plate, where the light beam spread angle regulating sheet regulates a light beam spread angle of the light incident from the light source module.. .


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Backlight Unit topics: Backlight Unit, Display Panel, Liquid Crystal, Liquid Crystal Display, Control Unit, Visualization, Image Processing, Computer Readable, User Interface, Control Program, Image Display Apparatus, Electronic Apparatus

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