Patent ID: 6320562
Filing Date: 2001-11-20
Classification: G09G

Abstract:
A liquid crystal display device which includes a plurality of row electrodes to which a scanning voltage is applied; a plurality of column electrodes provided so as to cross the plurality of row electrodes and having a display data voltage applied thereto; and a liquid crystal layer interposed between the plurality of row and column electrodes, the liquid crystal layer providing a display function at intersections between the plurality of row and column electrodes in response to a root mean square (RMS) value of a voltage applied between the plurality of row and column electrodes, the liquid crystal display device further comprising:a section for outputting a display data signal representing the display data voltage;a compensation circuit for outputting a compensation data signal based on a RMS value difference between an ideal RMS value of the display data voltage and an actual RMS value of the display data voltage applied to the plurality of column electrodes; anda driving circuit for applying a compensation voltage during a compensation period to at least one of the plurality of column electrodes based on the compensation data signal.