<p>An organic light-emitting diode display device according to an embodiment of the present invention includes a substrate; a first signal line on the substrate; a second signal line crossing with the first signal line; a thin film transistor connected to the first and second signal lines; a pixel electrode connected to the thin film transistor's drain electrode; a light-emitting layer on the pixel electrode; a common electrode formed on the light-emitting layer and made of a reflecting material; and an electric condenser overlapped with the pixel electrode.</p>