Patent ID: 6154189
Filing Date: 2000-11-28
Classification: G09G

Abstract:
A method of driving a liquid crystal display panel having scanning electrodes and signal electrodes through the multi-line selection drive method for simultaneously selecting a plurality of scanning electrodes, comprising the steps of:generating a virtual data based on a gray shades data corresponding to said plurality of scanning electrodes to be simultaneously selected;performing a given calculation based on said gray shades data, said virtual data and an orthogonal function defining signals to be given to the scanning electrodes; andpulse width modulating signals to be given to the signal electrodes during a selected period based on the resulting data from said given calculation,wherein data from said given calculation is obtained by converting said gray shades data and said virtual data into a data symmetrical about 0, performing a matrix calculation based on the converted data and an orthogonal function of i row and j column (wherein i and j are positive integers) and converting the result of the matrix calculation into a data represented only by a positive integer.