Patent ID: 6873320
Filing Date: 2005-03-29
Classification: G09G

Abstract:
1. A display device comprising: a plurality of display pixels arranged in a matrix form; a plurality of scanning lines arranged in a row direction of said display pixels; data lines arranged in a column direction of said display pixels; a data line driving circuit configured to supply image data to said data lines; a scanning line driving circuit configured to supply a scanning signal to said scanning lines; and a controller configured to control said data line driving circuit and said scanning line driving circuit, wherein each of said display pixels includes: a plurality of data bit storages which store the corresponding image data in response to the scanning signal; a holding circuit which holds one bit data in the image data stored in said plurality of data bit storages, and conducts refresh operation for said plurality of data bit storages; a lighting controller which controls whether or not to light the display pixels in accordance with a logic of one bit data held in said holding circuit; and a transferring transistor connected between said plurality of data bit storages and said holding circuit, said holding circuit includes: two inverters connected in series; and a feedback transistor connected between an output terminal of the inverter at a subsequent stage and an input terminal of the inverter at a previous stage, wherein said plurality of display pixels are divided into two or more blocks in each of horizontal and vertical directions, and said display pixels are configured to update image data based on a signal which is transmitted from said controller, said signal including an indicator designating a block for display updating and the pixel data in the block.