Patent ID: 7285763

Claim:
A display device comprising: a pixel portion having a plurality of pixels; a cumulative data storage unit for storing a cumulative light-emission frequency data of each of the plurality of pixels in corresponding one of a plurality of memories; an adder for adding a light-emission frequency data of each of the plurality of pixels detected by sampling a corrected video data supplied to the pixel portion to the cumulative light-emission frequency data of each of the plurality of pixels stored in the cumulative data storage unit, and for writing to the cumulative data storage unit, a result of the adding, as a new cumulative light-emission frequency data; and a correction unit for correcting a video data based on the cumulative light-emission frequency data stored in the cumulative data storage unit, and for outputting the corrected video data to the pixel portion, wherein each of the plurality of the pixels emits light having any one of a plurality of colors, wherein the cumulative light-emission frequency data is divided into a plurality of data fragments, wherein each of the plurality of the data fragments is corresponded to at least one of the plurality of the colors, and wherein each of the plurality of the data fragments is stored in corresponding one of the plurality of memories.