Patent ID: 7839366

Claim:
A display device, comprising: a plurality of light-emitting elements that emit light having different colors; a plurality of scanning signal lines that transmit scanning signals; a plurality of sense data lines that transmit sense reference voltages, the sense data lines crossing the scanning signal lines; a plurality of driving transistors that supply a driving current to the light-emitting elements; and a plurality of sense transistors that are exposed to the light-emitting elements and generate a photocurrent according to light emission of the light-emitting elements; wherein the sense transistors corresponding to the light-emitting elements that emit light having different colors have different sizes from each other, wherein the different colors comprise red, green and blue, wherein the sense transistors that correspond to the light-emitting elements that emit a blue light are smaller than the sense transistors that correspond to the light emitting elements that emit a red light, wherein the sense transistors that correspond to the light-emitting elements that emit the red light are smaller than the sense transistors that correspond to the light-emitting elements that emit a green light, wherein the plurality of driving transistors comprises first terminals connected to a first voltage line, second terminals connected to the plurality of light emitting elements, and control terminals, and wherein the plurality of sense transistors comprising first terminals connected to sense data lines, second terminals connected to next scanning signal lines, and control terminals connected to a second voltage line.