Patent ID: 6229583
Filing Date: 2001-05-08
Classification: G09G

Abstract:
A liquid crystal display device including a liquid crystal panel, the panel comprising:a plurality of row electrodes to which scanning signals are applied;a plurality of column electrodes arranged so as to cross the plurality of row electrodes to which display signals are applied; anda liquid crystal layer interposed between the row electrodes and the column electrodes for displaying images in response to a value of an effective voltage applied between the row electrode and the column electrode at intersections of the row electrodes and the column electrodes, the device comprising:a display data transformer for receiving input image data for one frame, for providing subframes for a period including a plurality of frames, a number of subframes being equal to d or greater than a number of gray-scale bits representing a gray-scale level of the input image data, and for generating binary display data in which respective binary data is associated with each subframe according to the gray-scale bits;a pulse amplitude controller for transforming the binary display data by setting a respective voltage amplitude independently for each subframe according to the binary display data so as to generate a display signal having a respective voltage value set independently for each subframe, wherebyan effective voltage according to the gray-scale bits of the input image data is applied to the liquid crystal display layer so as to conduct a gray-scale display for the input image data.