| Patent application number | Description | Published |
|---|
| 20080303768 | DISPLAY APPARATUS AND METHOD OF DRIVING THE SAME - In a display apparatus having a plurality of pixel parts, each pixel part receives a data signal in response to a present gate signal and charges first and second pixel voltages having the same voltage level. A plurality of voltage controllers includes a level-down part to lower a voltage level of the second pixel voltage using a previous pixel voltage charged in a previous frame in response to a next gate signal and a level-up part to receive the lowered second pixel voltage in response to the next gate signal to boost up a voltage level of the first pixel voltage. | 12-11-2008 |
| 20090009696 | POLARIZER AND METHOD OF MANUFACTURING THE SAME - A polarizer includes a first, second and third support layers, a first polarizing element disposed between the first support layer and the second support layer and the second polarizing element disposed between the second support layer and the third support layer. During the process of manufacturing the polarizer, the polarizer is stretched in the direction of length until the width of the polarizer after stretching is not less than half of the width of the polarizer before stretching. | 01-08-2009 |
| 20090027581 | LIQUID CRYSTAL DISPLAY AND METHOD OF DRIVING THE SAME - A LCD and a method of driving the LCD are provided. The LCD includes first and second gate lines extending in a first direction, a data line insulated from the first gate line and crossing the first gate line, a pixel electrode including first and second sub-pixel electrodes, the pixel electrode being disposed in a pixel having a long side in the first direction, a first thin film transistor (TFT) connected to the first gate line, the data line, and the first sub-pixel electrode, a second TFT connected to the first gate line, the data line, and the second sub-pixel electrode, and a third TFT connected to the second gate line, the second sub-pixel electrode, and a charge-sharing capacitor, the charge-sharing capacitor sharing a data voltage applied to the second sub-pixel electrode. | 01-29-2009 |
| 20090201452 | LIQUID CRYSTAL COMPOSITION AND DISPLAY DEVICE HAVING THE SAME - The present invention relates to liquid crystal composition and a display device having the same. The liquid crystal composition includes uniaxial liquid crystal molecules and biaxial liquid crystal molecules mixed with the uniaxial liquid crystal molecules for controlling an alignment direction of the uniaxial liquid crystal molecules. The liquid crystal composition helps reduce generation of singular points and texture regions where orientation of liquid crystal molecules are difficult to control. Hence, the liquid crystal composition is able to provide improved image quality. | 08-13-2009 |
| 20090310069 | LIQUID CRYSTAL DISPLAY - A liquid crystal display includes a lower panel, an upper panel facing the lower panel and including a plurality of red color filters, green color filters, and blue color filters, and a liquid crystal layer interposed between the lower and upper panels. The liquid crystal layer has first, second and third cell-gap portions corresponding to the red, green and blue filters, respectively, and the first second and third cell-gap portions have cell gaps Dr, Dg and Db, respectively. A first compensation film is disposed on an outer surface of one of the lower panel or the upper panel. A lower polarizer is on the outer surface of the lower panel and an upper polarizer is on the outer surface of the upper panel. The cell gaps Dr, Dg and Db may satisfy the equation 0 μm≦Dg−Db and Dr−Dg≦0.5 μm. | 12-17-2009 |
| 20090316095 | DISPLAY DEVICE FOR INCREASING VIEWING ANGLE - A display device includes a display panel, a first optical unit, and a second optical unit. The display panel includes a first substrate, a second substrate, and a liquid crystal layer disposed between the first substrate and the second substrate. The liquid crystal layer is operated in a vertical alignment mode. The first optical unit includes a C-plate and a first polarization plate having a first absorption axis. The second optical unit includes a positive A-plate, a negative A-plate, and a second polarization plate having a second absorption axis substantially perpendicular to the first absorption axis. The positive A-plate and the negative A-plate may gather dispersed polarization states of a colored light. | 12-24-2009 |
| 20100053521 | LIQUID CRYSTAL DISPLAY AND METHOD FOR MANUFACTURING THE SAME - The present invention relates to compensation films of a vertically-aligned liquid crystal display. Upper and lower compensation films asymmetrically differ in refractive index from each other. | 03-04-2010 |
| 20100097537 | THIN FILM TRANSISTOR SUBSTRATE CAPABLE OF ENHANCING IMAGE CLARITY AND REDUCING RESIDUAL IMAGES - A thin film transistor substrate and a liquid crystal display capable of eliminating residual images and enhancing clarity are presented. The thin film transistor substrate includes a charge-up capacitor for increasing electric charge in a first pixel electrode of a first pixel capacitor and a charge-down capacitor decreasing electric charge in a second pixel electrode of a second pixel capacitor. An extension electrode portion of the charge-up capacitor is formed in the shape of a frame to reduce any variation in the overlapping area between the first pixel electrode and the extension electrode portion caused by an alignment error generated during the manufacturing process. | 04-22-2010 |
| 20100134732 | DISPLAY SUBSTRATE, METHOD OF MANUFACTURING THE SAME AND DISPLAY PANEL HAVING THE DISPLAY SUBSTRATE - A display substrate includes a base substrate, a gate line, a first insulation layer, a semiconductor layer, a data line, a switching element, a light-blocking member, a reflective electrode, a second insulation layer and a transmissive electrode. The switching element is defined by a gate electrode, a source electrode and a drain electrode spaced apart from a source electrode. The light-blocking member includes a first light-blocking part disposed in correspondence with an area where the gate line and the data line are disposed, and a second light-blocking part is disposed in a reflective area to include an embossing pattern. The reflective electrode is disposed on the second light-blocking part. The second insulation layer is disposed in a pixel area of the reflective electrode. The transmissive electrode is disposed on the second insulation layer in correspondence with a transmissive area of the pixel area. | 06-03-2010 |
| 20100328593 | OPTICAL FILM ASSEMBLY AND DISPLAY DEVICE HAVING THE SAME - An optical film assembly includes a first polarization plate disposed below a liquid crystal layer and having a first absorption axis, a second polarization plate disposed above the liquid crystal layer and having a second absorption axis, an A-plate disposed between the first polarization plate and the second polarization plate, and a negative C-plate disposed between the first polarization plate and the second polarization plate. A thickness-direction phase retardation value of the negative C-plate is equal to or less than a value acquired by subtracting about 75 nanometers from a thickness-direction phase retardation value of the liquid crystal layer and the thickness-direction phase retardation value of the negative C-plate is equal to or greater than a value acquired by subtracting about 275 nanometers from the thickness-direction phase retardation value of the liquid crystal layer. | 12-30-2010 |
| 20110043730 | DISPLAY APPARATUS PROVIDING SIDE VIEW LUMINANCE ENHANCEMENT - A flat panel display device is provided with an increased viewing angle having good dark versus light imaging contrast. The display device includes a display panel, a first optical unit, and a second optical unit. The display panel includes a liquid crystal layer that is driven in a vertical alignment mode. The first optical unit includes a negative C-plate and a first polarizer having a first absorption axis. The second optical unit includes a biaxial compensation plate having a refractive indices coefficient, (nx−nz)/(nx−ny) of more than 0.45 and less than 0.55, and a second polarizer having a second absorption axis crossing the first absorption axis. The biaxial compensation plate has a refractive indices relationship of nx>nz>ny such that dispersion of polarization states of colored light rays passed through the C-plate and the liquid crystal layer may be minimized and gathered about an extinction point, thereby improving contrast at side viewing angles. | 02-24-2011 |
| 20110128460 | LIQUID CRYSTAL DISPLAY - A liquid crystal display includes: first and second substrates; a liquid crystal layer; first and second gate lines; a data line and a voltage supplying line disposed on the first substrate; and a pixel. The pixel includes a first switching element connected to the first gate line and the data line, a second switching element connected to the first gate line and the voltage supplying line, a third switching element connected to the second gate line, a first pixel electrode connected to the first switching element, and a separate second pixel electrode connected to the second switching element. The voltage supplying line is supplied with a first voltage, which has a substantially uniform magnitude. | 06-02-2011 |
