Abstract:
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.
Abstract:
The disclosure describes a liquid crystal display panel including a plurality of sub-pixels, a plurality of thin film transistors, a plurality of data lines, and a plurality of gate lines. Each of the sub-pixels has first and second gray scale regions which are split up and down and have different areas, first and second gray scale regions of one sub-pixel having a staggered arrangement with respect to those of an adjacent sub-pixel. Thin film transistors are connected to first and second gray scale regions so that first gray scale regions are driven when one of gate lines is driven and the second gray scale regions are driven when another gate line is driven.
Abstract:
A liquid crystal display includes a first substrate having a first alignment layer, a second substrate having a second alignment layer, a liquid crystal layer having liquid crystal molecules operating in a twisted nematic (TN) mode, a first polarizing film, a second polarizing film, and a phase difference compensation film. The phase difference compensation film has a delay axis to compensate for an undesired phase difference imposed by the NT operating liquid crystal layer on light, traveling through the liquid crystal layer when an ideally fully untwisting electric field is applied to the liquid crystal layer, and the delay axis forms an acute angle with a rubbing direction of the second alignment layer.
Abstract:
A liquid crystal display includes: a substrate; a pixel electrode disposed on the substrate and having a first subpixel electrode and a second subpixel electrode; and a common electrode facing the pixel electrode, wherein the first subpixel electrode has a pair of bent edges substantially parallel to each other, the second subpixel electrode has a pair of bent edges substantially parallel to each other, and the second subpixel electrode has a height greater than a height of the first subpixel electrode.
Abstract:
An additional capacitor (“sharing capacitor”) is provided for each pixel of a liquid crystal display to store the previous voltage on the pixel electrode (i.e. the voltage obtained in the previous frame). At an opportune time after the pixel electrode has begun to charge for the current frame, the sharing capacitor's electrode is coupled to the pixel electrode to combine the pixel electrode's voltage with the sharing capacitor's voltage. As a result, the pixel electrode's voltage is changed to take into account the previous voltage so as to increase the liquid crystal's response speed. More particularly, the sharing capacitor's voltage changes the pixel voltage to provide a greater voltage overshoot or undershoot when the pixel color is changed a lot, so as to increase the liquid crystal response time. Therefore, greater response speed is provided at low power.
Abstract:
In a display panel, main and sub pixel electrodes are connected to first and second drain electrodes of a thin film transistor, respectively, to receive a data voltage during a 1 H period as main and sub pixel voltages. A main storage electrode overlaps the main pixel electrode to receive a first common voltage that varies with the gate pulse and the polarity of the data voltage. A sub storage electrode overlaps the sub pixel electrode to receive a second common voltage that is uniformly maintained at a constant voltage level. The sub pixel voltage is uniformly maintained by the second common voltage, but the main pixel voltage is shifted up or down by the first common voltage. Thus, the main pixel voltage may have a voltage level higher than that of the sub pixel voltage.
Abstract:
A liquid crystal display includes a substrate, a pixel electrode disposed on the substrate and including a first subpixel electrode and a second subpixel electrode, and a common electrode facing the pixel electrode. The first subpixel electrode comprises a first edge, a second edge disposed opposite the first edge, and two first oblique edges substantially parallel to each other, the first oblique edges making an oblique angle with the first edge and the second edge and meeting the first edge. The second subpixel electrode comprises a first edge, a second edge disposed opposite the first edge, and two first oblique edges substantially parallel to or substantially perpendicular to the first oblique edges of the first subpixel electrode, the first oblique edges of the second subpixel electrode meeting the first edge of the second subpixel electrode. The first edge of the first subpixel electrode is adjacent to the first edge of the second subpixel electrode, and a length of the first edge of the first subpixel electrode is different from a length of the first edge of the second subpixel electrode. The first oblique edges of the first subpixel electrode are offset from the first oblique edges of the second subpixel electrode.
Abstract:
A liquid crystal display panel includes a plurality of sub-pixels, a plurality of thin film transistors, a plurality of data lines, and a plurality of gate lines. Each of the sub-pixels have first and second gray scale regions which are split up and down and have different areas, the first and second gray scale regions of one sub-pixel having a staggered arrangement with respect to those of an adjacent sub-pixel. Thin film transistors are connected to the first and second gray scale regions so that the first gray scale regions are driven when one of gate lines is driven and the second gray scale regions are driven when another gate line is driven.
Abstract:
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.
Abstract:
A display apparatus comprises a plurality of pixel areas, each defined by gate lines and data lines, wherein the data lines are arranged with the gate lines forming an angular relationship with the data lines, and a plurality of pixel electrodes formed in the pixel areas and configured to be essentially parallel with the arrangement of the gate lines.