Patent ID: 7385577

Claim:
A method of correcting an image signal of an electro-optical panel, the electro-optical panel comprising: a plurality of scanning lines; a plurality of data lines grouped in blocks each having a predetermined number of data lines; a predetermined number of image signal lines for supplying sampled image signals to the predetermined number of data lines belonging to a selected block, respectively, when the blocks are sequentially selected; a plurality of sampling switches interposed between the data lines and the image signal lines, for sampling the image signals supplied from the image signal lines to the data lines; and a plurality of pixels arranged at intersections of the scanning lines and the data lines, in which the image signals supplied from the corresponding data lines are written, the method comprising obtaining the difference between brightness indicated by an image signal supplied to a first data line arranged at one end of a first block and brightness indicated by an image signal supplied to a second data line arranged at one end of a second block; and correcting an image signal provided to a third data line arranged at the other end of the second block using a correction signal obtained from the difference of brightness.