LG.DISPLAY CO., LTD.
|LG.DISPLAY CO., LTD. Patent applications|
|Patent application number||Title||Published|
|20100232136||Backlight module - A backlight module is disclosed. The backlight module includes a light source producing light, a reflective plate that is positioned under the light source to reflect the light, and a prism plate including an incident surface and an emitting surface. The prism plate is positioned on the light source so that direct light from the light source and reflective light from the reflective plate are directly incident on the prism plate through the incident surface. A light scattering unit scattering the direct light and the reflective light is positioned on the incident surface of the prism plate, and a prism pattern changing a traveling path of light incident through the incident surface is positioned on the emitting surface of the prism plate.||09-16-2010|
|20090207356||Method of aligning alignment layer and liquid crystal display device having alignment layer aligned by the same - A liquid crystal display device includes: a first substrate having a black matrix, a color filter layer and a common electrode; a second substrate having gate lines, data lines and thin film transistors connected to pixel electrodes; a first alignment layer on the first substrate; a second alignment layer on the second substrate; and a liquid crystal layer having a plurality of liquid crystal molecules and positioned between the first and second alignment layers, wherein each of the first and second alignment layers has a first area with ion-altered side chains and a second area with non-altered side chains.||08-20-2009|
|20090168035||Exposure method and exposure apparatus for photosensitive film - An exposure apparatus for a photosensitive film includes: light-emitting diodes for generating rays to expose a photosensitive film; a light shield positioned between the light-emitting diodes to prevent noise; a stage for receiving a substrate having the photosensitive film thereon; and a parallelizer positioned between the light-emitting diodes and the stage for redirecting the rays from the light-emitting diodes to be perpendicularly incident upon the photosensitive film.||07-02-2009|
|20090109170||Method of driving liquid crystal display device - A method of driving a liquid crystal display device includes inputting source image data, each of which has one of m gray level values, wherein m is a natural number, defining T error data from the source image data, wherein the error data have top k gray level values, and T and k are a natural number, generating conversion image data having larger gray level values than the source image data using one having a largest gray level value from the source image data excluding the error data, inputting the conversion image data to a liquid crystal panel, controlling a brightness of a backlight unit in accordance with the conversion image data, forming a bitmap corresponding to the conversion image data, wherein the bitmap shows positional distribution of pixels with the error data, counting error areas by scanning the bitmap, wherein each of the error areas includes the predetermined number of the pixels having the error data, and controlling the T according to the number of the error.||04-30-2009|
|20090096741||Liquid crystal display device including backlight unit and method of driving the same - A liquid crystal display device includes: a light emitting diode array unit including at least two groups of light emitting diode arrays for emitting light; a light emitting diode driving unit for supplying at least two pulse width modulation signals having different phases from each other to the at least two groups of light emitting diode arrays, respectively; a liquid crystal display panel for displaying images using the light from the light emitting diode array unit; and a timing controller for controlling the light emitting diode driving unit and the liquid crystal display panel.||04-16-2009|
|20090091254||Organic electroluminescence device and method for manufacturing the same - An organic electroluminescence device and a method for manufacturing the same, in which a thin film transistor is covered by one electrode of a luminescence device, a shield layer, or an insulating layer, so that it is prevented from being exposed to natural light or X-rays, are disclosed. The organic electroluminescence device includes a semiconductor layer on the substrate while including a source region, a channel region, and a drain region, a gate insulating film on the substrate while including first contact holes, a gate electrode on the gate insulating film over the channel region, an interlayer insulating film on the gate insulating film while including second contact holes, source and drain electrodes on the interlayer insulating film while being electrically connected to the source and drain regions via the first and second contact holes, a planarizing film on the resulting structure while including a third contact hole, a first electrode of a luminescence device on the planarizing film such that the first electrode covers the semiconductor layer while being electrically connected to the drain electrode via the third contact hole, an organic luminescence layer on the first electrode, and a second electrode of the luminescence device on the organic luminescence layer.||04-09-2009|
|20090002624||Pad of liquid crystal display device and method for manufacturing the same - A pad of a liquid crystal display and a method for manufacturing the same are disclosed. The pad of the liquid crystal display includes an IC substrate and a lower substrate opposite each other, an IC pad metal formed on the IC substrate, a bump formed on the IC substrate to come into contact with the IC pad metal, a first transparent electrode electrically connected with the IC pad metal, an interlayer insulating layer formed between the IC pad metal and the first transparent electrode, a gate pad metal formed on the lower substrate, a second transparent electrode electrically connected with the gate pad metal, a gate insulating layer formed between the gate pad metal and the second transparent electrode, and a conductive ball to electrically connect the first transparent electrode and the second transparent electrode to each other.||01-01-2009|
|20080309611||Driving circuit of liquid crystal display device and method for driving the same - A driving circuit of a liquid crystal display device and a method for driving the same, which are capable of reducing manufacturing cost of the liquid crystal display device and reducing a luminance deviation so as to improve image quality, are disclosed. The driving circuit of the liquid crystal display device includes an LED backlight which includes a plurality of LED modules arranged in a plurality of division areas and generates light, an internal photosensor which is mounted in any one of the plurality of division areas, for detecting a luminance value, a controller which generates and outputs a plurality of control signals for changing respective luminance values of the plurality of division areas according to the luminance value detected by the internal photosensor, and a plurality of LED drivers which drive the plurality of LED modules according to the plurality of control signals.||12-18-2008|
|20080309602||Video display device capable of compensating for display defects - A video display device capable of compensating for display defects, comprising: liquid crystal panel for displaying an image through a pixel matrix; a data driver for outputting data to data lines of the liquid crystal display panel; a gate driver for driving the gate lines of the liquid crystal display panel; a timing controller for receiving compensated data, uncompensated data and synchronizing signals to output a gate control signal to the gate driver and to output both resultant data and a data control signal to the data driver; and a memory for storing information on point defect information on the liquid crystal display panel, and at least one of horizontal and vertical line defects of the liquid crystal display panel of the liquid crystal display panel; and a data compensation circuit for receiving display data and synchronizing signals, and outputting compensated data to the timing controller based on the information in the memory and uncompensated data to the timing controller, wherein the data compensation circuit includes a vertical line compensator for compensating a vertical line defect of the liquid crystal display panel, a horizontal line compensator for compensating a horizontal line defect of the liquid crystal display panel, and a multiplexer for selecting an output from one of the vertical line compensator and the horizontal line compensator in accordance with whether a defect is a vertical line defect or a horizontal line defect.||12-18-2008|
|20080303764||Liquid crystal display device and method for driving the same - Liquid crystal display device and method for driving the same, which has a gate high voltage generating circuit for preventing flickering of a gate high voltage. The liquid crystal display device includes a gate high voltage generating circuit for generating a gate high voltage by using n (where n is a natural number greater than unity) pumping units and supplying the gate high voltage through an output line, and a voltage stabilizing unit for generating a gate high voltage within a range of a highest preset value by using an output voltage of the (n−1)th pumping unit in a case the gate high voltage generated at the gate high voltage generating circuit exceeds the highest preset value.||12-11-2008|
|20080273158||Liquid crystal display panel having seal pattern for minimizing liquid crystal contamination and method of manufacturing the same - A liquid crystal display panel and the method of manufacturing the same are disclosed. Because an overlap portion of the seal pattern that encompasses in a closed form the outer edge of the image display part is minimized, excessive distribution of sealant at the overlap portion may be prevented. The liquid crystal display panel includes a first and a second substrates having at least one image display part; a main pattern on one of the first and second substrates and encompassing the outer edge of the image display part; a start pattern connected to the main pattern and formed from a point spaced apart from the image display part to a point adjacent to an outer edge of the image display part; an end pattern connected to the main pattern and formed from the point adjacent to the outer edge of the image display part to a point spaced apart from the image display part, wherein the start pattern and end pattern extend in a direction substantially parallel to a facing side of the main pattern; and liquid crystal dispensed in the image display part.||11-06-2008|
Patent applications by LG.DISPLAY CO., LTD.