The invention prevents an uneven display on an organic EL display panel by reducing characteristic variation of a driving transistor among pixels. A gate signal line for supplying a gate signal and a drain signal line for supplying a display signal are crossing each other. Four split driving TFTs of P-channel type are provided in a pixel, and drains of the driving TFTs are connected with anodes of split organic EL elements, respectively. A common gate of the driving TFTs is connected with a pixel selecting TFT.