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Class 349/69 - Electroluminescent light source


Subclass of Class 349 - Liquid crystal cells, elements and systems
Definition: Subject matter wherein the liquid crystal device is lit
No. of patents: 288
Last issue date: 05/22/2012


1                
NumberTitleIssue Date
8184239Liquid crystal display device
Disclosed is an LCD device capable of enhancing a display quality on a screen by minimizing feature changes of light emitting diodes (LED) due to heat in a structure that heat is rapidly emitted, from the LED serving as a light source, to outside of a lower cover. T...
05/22/2012
8115890Backlight unit and a liquid crystal display apparatus applying the same therein
A backlight unit, being thin-sized, but having high definition and high uniformity of luminance, and a video display apparatus applying the same therein, has a plural number of sets of at least one or more of light source(s) (1) and a light guidance plate (
02/14/2012
8107037Display device and fabrication method thereof
A display device and its fabrication method are disclosed. According to one aspect, the method for fabricating a display device includes forming a first element unit including a first reflector layer, a light emitting part and a common electrode on a lower substrate...
01/31/2012
8107036Backlight device, liquid crystal display apparatus, and light deflecting sheet
According to the present invention, by controlling the angular distribution of the light outputted from a light guide plate to enable the angular brightness distribution of the light emitted from a backlight device to be controlled, the thickness of a liquid crystal...
01/31/2012
8054410Pixel structure having red sub-pixel, green sub-pixel, blue sub-pixel and white sub-pixel
A pixel structure includes a red sub-pixel, a green sub-pixel, a blue sub-pixel and a white sub-pixel. The red sub-pixel, the green sub-pixel and the blue sub-pixel are suitable for providing a first white light, and a chroma coordinate of the first white light is (...
11/08/2011
8035772Backlight unit and liquid crystal display device having the same
A backlight unit for a liquid crystal display (“LCD”) device includes a light emitting diode (“LED”) light source and a light conversion layer disposed separate from and above from the LED light source. The light conversion layer includes a semiconductor nan...
10/11/2011
8023070LED backlight device and LCD device
A backlight device includes a first substrate having optical transparency and having first and second surfaces opposite to each other. An LED thin-film is fixed to the first surface of the first substrate. An anode electrode and a cathode electrode are formed on the...
09/20/2011
8013952LED backlight device and LCD device
A backlight device includes a first substrate having optical transparency and having a first surface and a second surface. An LED thin-film is fixed to the first surface of the first substrate. The LED thin-film is formed of epitaxially grown inorganic material laye...
09/06/2011
8009247Light source apparatus, backlight apparatus, liquid crystal display apparatus, and manufacturing method of backlight apparatus
A light source apparatus used in a backlight apparatus is disclosed. The light source apparatus includes a light-emitting diode unit and a wiring board. The light-emitting diode unit is provided as one unit by nonlinearly and closely placing respective light-emittin...
08/30/2011
7965351Planar light source, display device and method for manufacturing the same
Light-emitting elements are divided into chromaticity groups on the basis of their chromaticity. In a planar light source, light-emitting elements selected from two of the chromaticity groups are alternately provided in a longitudinal direction and in a transverse d...
06/21/2011
7936421Display device and fabrication method thereof
A display device and its fabrication method are disclosed. According to one aspect, the method for fabricating a display device includes forming a first element unit including a first reflector layer, a light emitting part and a common electrode on a lower substrate...
05/03/2011
7932970Two dimensional light source using light emitting diode and liquid crystal display device using the two dimensional light source
A two-dimensional light source includes a base substrate having holes, wires disposed on a lower surface of the base substrate, a light emitting diode (LED) chip disposed on an upper surface of the base substrate, plugs that connect two electrodes of the LED chip to...
04/26/2011
7932969Liquid crystal display device with light emitting diode package mounted on printed circuit board
A liquid crystal display device using a light emitting diode includes a liquid crystal panel, a light guide plate including a light inlet part, the light guide plate being arranged at rear side of the liquid crystal panel, a flexible printed circuit film electricall...
04/26/2011
7894017Plane light source and LCD backlight unit having the same
There are provided a plane light source and an LCD backlight unit having the same. A plane light source including light emitting device matrixes each having a plurality of light emitting devices arranged in rows and columns on a substrate according to an aspect of t...
02/22/2011
7876399Liquid crystal display with split electrode
A light shutter includes a first electrode, a second electrode, and a third electrode, wherein the first and second electrodes are capacitively coupled to each other by the third electrode. The first electrode and the second electrode can be segmented and the segmen...
01/25/2011
7872706Polarized light-emitting device
Polarized light-emitting device with a light source, multiple layers of first optical thin films and second optical thin films alternately stacked is disclosed. Each first optical thin film has a number of first geometric units, and each second optical thin film has...
01/18/2011
7859614Light emitting diode package having dual lens structure and backlight for liquid crystal display device implementing the same
Disclosed is a liquid crystal display (LCD) device in which low power LEDs with a dual lens structure re configured for application in a backlight device to increase the optical efficiency at low power, thus enhancing the brightness, such LCD device including: a low...
12/28/2010
7852434Aromatic polymer
Disclosed is an aromatic polymer containing one or more repeating units represented by the following formula (1). (In the formula, Ar1 represents an arylene group having a fused ring structure or a divalent heterocyclic compound group having a π-conjugat...
12/14/2010
7847883Reflective liquid crystal display device
The invention is directed to the higher contrast in a liquid crystal display device (LCD) having a lighting portion as a front light. A lighting portion is formed by interposing an organic EL layer between a transparent substrate and a transparent substrate. A light...
12/07/2010
7843528Backlight unit and flat panel display having the same
A flat panel display includes a base chassis, a display panel, a backlight unit connected to the base chassis to emit light to the display panel, and including a substrate mounted with a plurality of light emitting diodes (LEDs) each generating light and a light gui...
11/30/2010
7839467Color Tuneable electroluminescent devices
The present invention replaces conventional lighting devices, such as incandescent lamps, fluorescent lamps, and LED lamps, with an integrated electro-luminescent film structure, subdivided into electrically isolated micro-panels. Ideally, the electro-luminescent st...
11/23/2010
7830476Electroluminescence display device comprising a drain electrode being directly contacted with the upper surface of the first transparent conductive layer and the side surface of the second conductive layer and fabricating methods thereof
A liquid crystal display device includes a first thin film transistor having an active layer, a gate electrode with a double conductive layer structure overlapping the active layer with a gate insulating film there between, a source electrode and a drain electrode c...
11/09/2010
7821597Display device having liquid crystal layer and switchable optical layer
A display device including a first electrode, a liquid crystal layer positioned under and connected to the first electrode, a second electrode and a switchable optical layer. The switchable optical layer includes either a transparent state or a non-transparent state...
10/26/2010
7808580Reflector member, backlight assembly and display apparatus having the same
In a backlight assembly, a reflector member includes a base sheet reflecting a light and a connecting line disposed on a face of the base sheet and, and transmitting signals. An input pad is disposed at a first end portion of the connecting line and receives the sig...
10/05/2010
7808581Low profile backlight apparatus
A backlight apparatus includes a point source of radiant electromagnetic energy. A total internal reflection (TIR) lens has a vertical central axis located along a path of the radiant electromagnetic energy. The TIR lens receives and evenly distributes the radiant e...
10/05/2010
7791685Liquid crystal display having particular relationship between color filter layer and backlight module
An liquid crystal display including a backlight module and an LCD panel is disclosed. The backlight module has a white light source, and the normalized optical spectrum of the backlight module is BL(λ). The LCD panel includes a red color filter layer, a green color...
09/07/2010
7777835Liquid crystal display
A liquid crystal display according to an embodiment of the present invention includes: a liquid crystal panel assembly comprising a plurality of first field-generating electrodes, a second field-generating electrode facing the first field-generating electrodes, a li...
08/17/2010
7760291Planar light-source apparatus
A planar light-source apparatus illuminates, from the backside, a transmissive liquid crystal display having a display area composed of pixels formed in a two-dimensional matrix arrangement, and the planar light-source apparatus includes a diffusing plate facing the...
07/20/2010
7740365Backlighting arrangement with semiconductor light sources arranged in light groups and lighting device
This invention relates to uniform backlighting of surfaces by semiconductor light sources. Various semiconductor light sources are combined into identical illumination groups. These identical illumination groups are arranged so that uniform backlighting of a surface...
06/22/2010
7728926Liquid crystal display and method for controlling brightness of an image
A liquid crystal display and method for controlling brightness of an image on a liquid crystal display are provided, in which, a liquid crystal display panel displays an image, a light generating unit provides a laser beam to illuminate the liquid crystal display pa...
06/01/2010
7710516Liquid crystal display with color sector backlighting
An LCD display system provides colored backlighting to enhance the viewing experience of presentations by the display system. The liquid crystal display (LCD) system includes a monochrome LCD to display monochrome information including at least two sectors; at least...
05/04/2010
7683981Light emitting diode substrate, method of manufacturing the same, and liquid crystal display device using the same
A luminance control circuit for controlling the luminance levels of different colored light sources that lends itself to easy incorporation into display devices is presented. A light emitting diode (LED) substrate includes a plurality of driving thin film transistor...
03/23/2010
7675585Liquid crystal display with organic EL backlight comprising cap member with protrusions
A liquid crystal display and fabricating method thereof are disclosed, by which a backlight having a simple configuration, a reduced thickness and a low cost can be provided. The present invention includes a liquid crystal display panel having an upper substrate, a ...
03/09/2010
7667790Liquid crystal display device comprising a filter layer lying in a same plane as a self-luminous body including a first electrode, an organic substance layer and a second electrode
Disclosed is a reflective type liquid crystal display device. The liquid crystal display device includes: an upper substrate provided with a polarizing plate on one surface of the upper substrate; a lower substrate spaced away from the other surface of the upper sub...
02/23/2010
7663714Backlight device and color liquid crystal display apparatus
Disclosed is a backlight device used for a color liquid crystal display (LCD) apparatus. The red light, green light and blue light, generated by a light source, made up by a red light emitting diode (21R), a green light emitting diode (21G) and a blue ...
02/16/2010
7651235Planar light source device and liquid crystal display device assembly
A planar light source device configured to illuminate a transmissive liquid crystal device having a display region configured of pixels arrayed in a two-dimensional matrix from the rear side, includes: planar light source units corresponding to hypothetical display ...
01/26/2010
7649593Backlight unit and liquid crystal display having the same
A backlight unit comprises an arrangement surface and a plurality of point light sources arranged on the arrangement surface, wherein the arrangement surface is divided into an array of hexagonal cells, a plurality of the cells comprising a white light providing uni...
01/19/2010
7646450Light emitting diode array, method of manufacturing the same, backlight assembly having the same, and LCD having the same
Provided is a light emitting diode array including: a plurality of light emitting chips spaced apart from one another by a predetermined distance; and a fixing member that positions the plurality of light emitting chips at predetermined heights and/or predetermined ...
01/12/2010
7633577Light emitting diode backlight unit and liquid crystal display device using the same
A light emitting diode backlight unit and a liquid crystal display device having the same is provided. The light emitting diode improves efficiency of a backlight and productivity by mounting light emitting diodes and drive components onto the same printed circuit b...
12/15/2009
7630027Display device having a metal polarizing layer disposed between a first substrate and a common electrode which itself is disposed between a liquid crystal layer and the first substrate
The invention is directed to the higher contrast in a display device with a lighting device as a front light and a reflective LCD. A lighting device is disposed, being opposed to a front surface of a reflective electrode of a reflective LCD. An organic EL element la...
12/08/2009
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