Abstract: In a display apparatus, a common electrode receives a common voltage of which a voltage level is inverted at every H/2 period of 1H period during which pixels connected to one row are turned on. A first switching device outputs a first data voltage having a voltage level different from the common voltage during an earlier H/2 period, and a second switching device outputs a second data voltage having a polarity different from the first data voltage during a later H/2 period. First and second pixel electrodes receive the first and second data voltages from the first and second switching devices, respectively. Thus, a liquid crystal voltage applied to a liquid crystal layer increases, thereby improving a response speed of a liquid crystal and reducing a power consumption of the display apparatus.

Abstract: Certain types of displays such as electrophoretic displays tend to deteriorate if their pixel units are persistently driven by currents flowing in only one direction for the purpose of maintaining (i.e. refreshing) a relatively constant optical state. A first method pulses the pixel unit with a drive pulse of opposed polarity but duration too short (i.e. less than 1/25 second) for a viewer to notice. A second method pulses the pixel unit with a drive pulse of opposed polarity but magnitude to small to effect change in optical state.

Abstract: A driving device for a display device and a method of compensating an image signal of the display device in which the driving device for a display device having a plurality of pixels includes: a first compensating unit that converts an image signal corresponding to the pixel into a first compensated signal according to a difference between the image signal, and an image signal in a previous frame; a second compensating unit that converts the first compensated signal corresponding to the pixel into first and output image signals; an edge detecting unit that outputs a signal according to whether the pixel exists in an edge region in an image based on a difference between image signals corresponding to peripheral pixels; and a first calculating unit that generates converted signals of the first and second output signals based on the output signal of the edge detecting unit.

Abstract: A method of converting image signals for a display device including six-color subpixels is provided, which includes: classifying three-color input image signals into maximum, middle, and minimum; decomposing the classified signals into six-color components; determining a maximum among the six-color components; calculating a scaling factor; and extracting six-color output signals.

Abstract: A thin film transistor array panel is provided, which includes an insulating substrate, a gate line formed on the insulating substrate, a gate insulating layer covering the gate line, a data line formed on the gate insulating layer, a lower passivation layer covering the data line, an upper passivation layer formed on the lower passivation layer and made of organic insulating material, and a pixel electrode formed on the upper passivation layer. The thicknesses of the gate insulating layer, the lower passivation layer, and the pixel electrode are respectively represented as dG, dP, and dI, the refraction indexes of the gate insulating layer, the passivation layer, and the pixel electrode are respectively represented as nG, nP, and nI, and condition equations are satisfied according to: 4(dGnG+dPnP)=, which is an even multiple of the wavelength; and 4dInI=, which is an even multiple of the wavelength.

Abstract: A thin film transistor array panel is provided, which includes; an insulating substrate; a plurality of gate lines formed on the insulating substrate; a plurality of data lines formed on the insulating substrate, insulated from the gate lines, and intersecting the gate lines; a plurality of storage electrode lines formed on the insulating substrate, insulated from the data lines, and intersecting the data lines; a plurality of pixel electrodes provided on the respective pixel areas defined by the intersections of the gate lines and the data lines, each pixel electrode having a cutout; a plurality of direction control electrodes provided on the respective pixel areas defined by the intersections of the gate lines and the data lines; a first thin film transistor connected to a relevant one of the gate lines, a relevant one of the data lines and a relevant one of the gate lines, a relevant one of the data lines and a relevant one of the pixel electrodes; a second thin film transistor connected to a previous one

Abstract: A liquid crystal display is provided, which includes: first and second panels facing each other, interposing a gap therebetween, and first and second field generating electrodes, respectively; a liquid crystal layer filled in the gap and including a plurality of liquid crystal molecules; first and second tilt direction defining members disposed on the first and the second panels, respectively, and giving a first tilt direction to a group of the liquid crystal molecules; and a third tilt direction defining member disposed on one of the first and the second panels and giving a second tilt direction oblique to the first tilt direction to the group of the liquid crystal molecules.

Abstract: A liquid crystal display including a liquid crystal panel, a temperature sensor sensing a temperature of the liquid crystal panel, a gray scale voltage generating part including a plurality of gray scale voltage generating units each generating a first gray scale voltage set corresponding to a preset temperature and a controller generating a second gray scale voltage set corresponding to the sensed temperature using the first gray scale voltage sets when the sensed temperature does not correspond to the preset temperature.

Abstract: A liquid crystal display (LCD) and a driving method thereof are provided.

Abstract: A method of fabricating a display device has a simple process and reduced manufacturing cost by forming an alignment film on a first insulating substrate; forming a liquid crystal polymer layer in a liquid-crystal state on the alignment film; arranging a mold with a pattern forming part on the first insulating substrate and pressing the mold toward the liquid crystal polymer layer; curing the liquid crystal polymer layer while the mold is being pressed; and separating the mold from the liquid crystal polymer layer to form a phase adjusting plate including a plurality of sub-plates corresponding to the pattern forming part of the mold.

Abstract: A liquid crystal display is provided, which includes: first and second panels facing each other, interposing a gap therebetween, and first and second field generating electrodes, respectively; a liquid crystal layer filled in the gap and including a plurality of liquid crystal molecules; first and second tilt direction defining members disposed on the first and the second panels, respectively, and giving a first tilt direction to a group of the liquid crystal molecules; and a third tilt direction defining member disposed on one of the first and the second panels and giving a second tilt direction oblique to the first tilt direction to the group of the liquid crystal molecules.

Abstract: The present invention provides a liquid crystal display having excellent visibility. A thin film transistor array panel is provided, which includes: gate lines formed on an insulating substrate; data lines insulated from the gate lines and intersecting the gate lines; first pixel electrodes disposed on pixel areas defined by intersections of the gate lines and the data lines; first thin film transistors, each having three terminals connected to one of the gate lines, one of the data lines, and one of the first pixel electrodes; second pixel electrodes disposed on the pixel areas and capacitively coupled to the first pixel electrodes; and second thin film transistors, each having three terminals connected to a previous gate line, a storage electrode line or one of the data lines, and one of the second pixel electrodes.

Abstract: A TFT array panel for a display has a gate insulating layer with substantially the same dielectric constant as the passivation layer and may be thicker than the passivation layer, while the storage capacitor includes a pixel electrode and a storage electrode overlapping each other along with the passivation layer sandwiched therebetween such that the storage capacitor has a higher capacitance than known storage capacitors even though the storage conductors have the same area as before.

Abstract: A display device is provided, which includes: a plurality of pixels arranged in matrix, each pixel including a first set of three primary color subpixels (R, B, G) and at least one of a second set of three primary color subpixels, (C, M, Y) wherein the first and the second sets of three primary colors have a complementary relation.

Abstract: A thin film transistor array panel is provided, which includes: a substrate; a plurality of first signal lines formed on the substrate; a plurality of second signal lines intersecting the first signal lines to define pixel areas, first and second pixel electrodes disposed substantially, in a pixel area and having different areas; a plurality of thin film transistors connected to the first and the second signal lines and at least one of the first and the second pixel electrodes; a coupling electrode overlapping the second pixel electrode; and a tilt direction defining member for determining tilt directions of liquid crystal molecules formed on the substrate.

Abstract: A liquid crystal display and a driving method thereof. The liquid crystal display includes a timing controller, a gate driver, a data driver and a liquid crystal panel. The timing controller stores a plurality of sets of gray level correction values, each set of gray level correction values corresponding to each gray level and generates corrected gray level data in response to input gray level data, the corrected gray level data reflecting the gray level correction values corresponding to the input of gray level data. The brightness of the corrected gray level data is time-averaged to be equal to brightness of the input gray level data.

Abstract: A thin film transistor (TFT) array panel that automatically matches the gamma curves of the reflective mode and the transmissive mode is presented. The TFT array panel includes a substrate, a switching element formed on the substrate and including an input terminal, an output terminal, and a control terminal. A transmissive electrode is connected to the output terminal, and a first reflective electrode is connected to the output terminal. A storage electrode is formed on a layer that underlies the output terminal and separated from the output terminal to form a storage capacitor with the output terminal. A second reflective electrode is formed on a layer that is above the output terminal and separated from the output terminal to form an auxiliary capacitor with the output terminal.

Abstract: A liquid crystal display includes a common electrode panel having a first substrate, a color filter formed on the substrate and having a light hole, a common electrode formed on the color filter and into the light hole, a first insulating film formed on the common electrode and formed into the light hole, a thin film transistor (TFT) panel facing the common electrode panel, and a liquid crystal layer interposed between the common electrode panel and the TFT panel. The TFT panel includes a second substrate, a transmissive electrode formed on the second substrate, and a reflective electrode formed on the second substrate and connected to the transmissive electrode.

Abstract: A method of displaying an image using an image display device in which the image display device has an artificial light source includes inputting primary image signals to the image display device, determining chroma state of the primary image signals for each image frame, and determining gray-scale state of the primary image signals for each image frame. The primary image signals are transformed to multi-color image signals and luminance of the artificial light source is controlled, in response to the determined chroma state and gray-scale state of the primary image signals.

Abstract: A gray scale voltage generator and a method of generating a gray scale voltage in a transmissive and reflective type liquid crystal display device are disclosed. A transmissive mode gray scale data are transformed into real reflective mode gray scale data. An integer part is extracted from the real reflective mode gray scale data as a first reflective mode gray scale data. The first reflective mode gray scale data and temporary reflective mode gray scale data are mixed in a predetermined ratio by N-frame period. The temporary reflective mode gray scale data has a sum of one and the first reflective mode gray scale data. Pseudo gray scale data are inserted into the second reflective mode gray scale data. Therefore, superior display quality is provided in both transmissive and reflective mode.