METHOD FOR COMPENSATING BRIGHTNESS VARIATION, CIRCUIT FOR COMPENSATING BRIGHTNESS VARIATION, ELECTRO-OPTICAL DEVICE, AND ELECTRONIC APPARATUS

摘要

To correct unevenness of brightness caused from unevenness in a cell gap, etc. with high accuracy. When unevenness of brightness of pixels is corrected by adding correction data corresponding to a pixel to image data specifying the brightness of the pixel, a plurality of vertical scan periods is used as a reference cycle, and during the respective vertical scan periods of the reference cycle, one of two data values between which a correction amount of the pixel is interposed is selected and the selected data value is output as correction data. At this time, the number of times when one of the two data values is supplied during the reference cycle is increased as the correction amount comes close to the one data value.