Abstract: A pixel electrode and a direction control electrode capacitively coupled to the pixel electrode are provided in a pixel. A pixel thin film transistor is connected to a gate line, a data line, and the pixel electrode. A direction control electrode thin film transistor is connected to a previous gate line, a previous data lines or a next data line, and the direction control electrode. The gate lines are supplied with scanning signals, and each scanning signal includes first and second pulses in a frame. The first pulse of a scanning signal is synchronized with the second pulse of a previous scanning signal.

Abstract: A liquid crystal display includes first and second gate lines arranged in parallel to each other and sequentially transmitting a gate voltage, a data line crossing the first and second gate lines and transmitting a data voltage, a pixel electrode constituted by first and second sub-pixel electrodes and electrically disconnected from each other, a first switching element connected to the first gate line, the data line, and the first sub-pixel electrode, a second switching element connected to the first gate line, the data line, and the second sub-pixel electrode, a third switching element connected to the first sub-pixel electrode across a charge-sharing capacitor, and a fourth switching element connected to the second gate line and the second sub-pixel electrode and connected to the first sub-pixel electrode across the charge-sharing capacitor.

Abstract: A liquid crystal display including an upper panel having an upper alignment layer, a lower panel having a lower alignment layer, and a liquid crystal layer including liquid crystal molecules interposed between the upper panel and the lower panel. Each of the liquid crystal molecules has different refractive indexes and different permittivities with respect to each axis direction. The upper alignment layer and the lower alignment layer are vertical alignment layers and have a rubbing direction, respectively. Before the application of an electric field, a first axis of each liquid crystal molecule is aligned in a vertical direction by the vertical alignment layer, and a second axis of each liquid crystal molecule is aligned in a direction parallel to the rubbing direction, and, after the application of the electric field, one having the largest permittivity of the axis directions of the liquid crystal molecule is aligned in parallel to the applied electric field.

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 pixel electrode and a direction control electrode capacitively coupled to the pixel electrode are provided in a pixel. A pixel thin film transistor is connected to a gate line, a data line, and the pixel electrode. A direction control electrode thin film transistor is connected to a previous gate line, a previous data lines or a next data line, and the direction control electrode. The gate lines are supplied with scanning signals, and each scanning signal includes first and second pulses in a frame. The first pulse of a scanning signal is synchronized with the second pulse of a previous scanning signal.

Abstract: An array substrate includes first and second gate lines, a data line, a pixel electrode, a domain electrode, first, second and third switching elements, and a voltage-changing part. The domain-dividing electrode divides the first and second pixel parts into a plurality of areas. The first, second and third switching elements are controlled by a first gate signal applied from the first gate line. The first, second and third switching elements apply a data signal received from the data line to the first and second pixel parts and the domain-dividing electrode, respectively. The voltage-changing part is controlled by a second gate signal applied from the second gate line. The voltage-changing part increases a voltage level of the domain-dividing electrode and decreases a voltage level of the second pixel part.

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 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: In an array substrate, a display apparatus having the same and a method for repairing the same, a substrate includes a display area and a peripheral area that is adjacent to the display area. A plurality of signal transmitting lines are formed in the peripheral area of the substrate. A plurality of signal lines are formed in the display area of the substrate and connected to the signal transmitting lines. A repair part is formed in the peripheral area of the substrate. The repair part intersects and is insulated from the signal transmitting lines so as to repair a first opened signal transmitting line of the signal transmitting lines. Thus, the array substrate may be produced in high-yield and prevent signal distortion.

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 (LCD) and a driving method thereof are provided.

Abstract: A display device is provided, which includes, a plurality of pixels arranged in a matrix, each pixel including a first set of three primary color subpixels (R, G, B) 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: Disclosed is a display device together with a method of modifying image signals. The display device includes a plurality of pixels with first and second pixels, and an image signal modifier for generating a modified image signal by modifying the input image signal of the first pixel based on the previous image signal of the first pixel and the input image signal of the second pixel. Dynamic capacitance compensation is made for a pixel where the gray variation thereof with respect to the pixels neighboring thereto is low, but over-compensation that is greater than the dynamic capacitance compensation is made for a pixel where the gray variation thereof with respect to the pixel neighbors is high, thereby decreasing the blurring, and preventing the image quality from being deteriorated.

Abstract: A method of improving the viewing angle of a vertically-aligned liquid crystal display device is presented. The method involves designing a uniaxial compensation film to provide a retardation value of 200 nm or less for light having a wavelength of about 550 nm. Using this uniaxial compensation film, a display device can be built by obtaining a liquid crystal panel with liquid crystal molecules contained between glass substrates, coupling the uniaxial compensation film to at least one of the glass substrates, and coupling a polarization film and electrodes to the compensation film. Preferably, the uniaxial compensation film has a thickness less than or equal to 50 microns. Where there are multiple compensation films, the total thickness and the total retardation values should be considered.

Abstract: An organic light emitting device includes first and second sub pixels. The first sub pixel includes at least one first sub pixel that emits a light of original colors, and the second sub pixel includes at least one second sub pixel that emits a light of complementary colors, wherein a specific sub pixel is selected from the first and second sub pixels and a light emitting efficiency of a remaining sub pixels are adjusted according to a light emitting efficiency of a selected sub pixel from among the first and second sub pixels, so that the OLED displays a white color when each sub pixel emits a maximum amount of light.

Abstract: An array substrate includes a gate line, a data line, a switching device, a transmissive electrode, a reflective electrode and a compensating wiring. A pixel region includes first and second regions. The switching device is connected to the gate line and the data line. The transmissive electrode is connected to the switching device. The transmissive electrode is formed in the first region. The reflective electrode is insulated from the transmissive electrode. The reflective electrode is formed in the second region that is adjacent to the first region. The compensating wiring is connected to the switching device. The compensating wiring faces the reflective electrode in the second region with an insulation layer interposed therebetween. Thus, both of a reflectivity of the reflective electrode and a transmissivity of the transmissive electrode are enhanced simultaneously, while the liquid crystal display apparatus maintains a uniform cell gap.

Abstract: The present invention provides a thin film transistor (“TFT”) array panel including a substrate, first and second transmissive electrodes formed on the substrate, first and second reflective electrodes connected to the first and second transmissive electrodes, respectively, and third and fourth reflective electrodes separated from the first and second transmissive electrodes and the first and second reflective electrodes. A first area ratio of the first and third reflective electrodes is different from a second area ratio of the second and fourth reflective electrodes. A liquid crystal display (“LCD”) includes the TFT array panel, and a method is provided for coinciding voltage-reflection curves of adjacent pixels in the LCD.

Abstract: A method of improving the viewing angle of a vertically-aligned liquid crystal display device is presented. The method involves designing a uniaxial compensation film to provide a retardation value of 200 nm or less for light having a wavelength of about 550 nm. Using this uniaxial compensation film, a display device can be built by obtaining a liquid crystal panel with liquid crystal molecules contained between glass substrates, coupling the uniaxial compensation film to at least one of the glass substrates, and coupling a polarization film and electrodes to the compensation film. Preferably, the uniaxial compensation film has a thickness less than or equal to 50 microns. Where there are multiple compensation films, the total thickness and the total retardation values should be considered.

Abstract: A liquid crystal display has, a plurality of pixel including a switching element, a plurality of gate lines extending transversally, a plurality of data lines extending longitudinally, a first storage electrode line extending transversally, a second storage electrode line extending longitudinally, a third storage electrode line connecting two of the adjacent second storage electrode line, a repair assistant formed in an area that the data line crosses over the third storage electrode line. The liquid crystal display can be repaired with good quality by shortening the repair path.