Patent ID: 8059073

Claim:
An organic light emitting diode OLED display, comprising: a pixel unit including a plurality of pixels connected to scan lines and data lines; a scan driver adapted to generate and supply scan signals to the scan lines; a data driver adapted to generate and supply data signals to the data lines; an optical sensor adapted to generate an optical sensing signal according to an intensity of light; and a data converter adapted to store input image data or changed input image data in accordance to the optical sensing signal, wherein the data converter includes: a comparator adapted to output a selection signal corresponding to the optical sensing signal, a controller adapted to determine a state of the input image data corresponding to the selection signal, a first calculator adapted to generate pixel saturation data corresponding to the input image data received from the controller, a second calculator adapted to extract changed data corresponding to the pixel saturation data, and a memory adapted to store the input image data received from the controller or the changed data supplied from the second calculator, wherein the data driver is adapted to generate the data signal corresponding to the input image data or the changed input image data.