Patent ID: 7924252

Claim:
A display driver for a display panel which includes a signal line on one side of the panel and an opposite electrode on an opposite side of the panel, wherein a current leakage path exists between the signal line and the opposite electrode when a voltage is applied to the signal line, comprising: a generating circuit for generating gray scale voltages corresponding to each of a plurality of gray scales; and a selecting circuit for selecting a gray scale voltage to be outputted to the signal line of the display panel in accordance with inputted display data, wherein said selecting circuit selects a gray scale voltage to be outputted to said signal line from the gray scale voltages outputted through time division from said generating circuit for each signal line and controls a length of a period for outputting the selected gray scale voltage based on said display data, said generating circuit is configured to generate the gray scale voltage whose level to an ideal voltage is fluctuated due to charge transfer through the current leakage path in accordance with each of a plurality of periods obtained by time-division of one scanning period for outputting said gray scale voltage to said signal line, and said generating circuit generates the gray scale voltages whose levels differ in each divided period, which are obtained by adding or subtracting voltage fluctuation values corresponding to the charge transfer through the current leakage path to/from said gray scale voltage in each of the time-divided periods.