Patent ID: 6650307
Filing Date: 2003-11-18
Classification: G09G

Abstract:
A method of driving a display panel equipped with plural cells that carry out discharge for light emission selectively and a display luminance of which is determined by a number of times the discharge for light emission is performed, wherein: a display frame of a screen comprises plural subframes, each of the subframes being assigned a number of times the discharge for light emission is performed according to a specified luminance relation; a representation of a gray scale is performed by combining the subframes in which a display is presented according to an intensity of an input image signal for each cell; and a control of power consumption is carried out by both a control of a total number of times discharge for light emission is performed, and a control of a gain of the input image signal,wherein the control of the power consumption is carried out by first reducing the total number of times discharge for light emission is performed with the gain being set to a constant value, and after the total number of times discharge for light emission is performed is reduced to a threshold value, setting the total number of times discharge for light emission is performed to the threshold value and then reducing the gain.