Patent ID: 8274452

Claim:
An organic light emitting display, comprising: a demux coupled to data lines, the demux configured to receive a data voltage at an input and to apply the data voltage through an output to the data lines; and a plurality of pixel circuits coupled to the data lines, wherein the data voltage is supplied to each pixel circuit according to a scan signal, wherein the scan signal and a turn-on emission control signal are simultaneously supplied to each of the pixel circuits, and wherein the pixel circuits are each coupled to a scan line and a data line, the pixel circuits each comprising: a first switching transistor comprising a control electrode coupled to the scan line, a first electrode coupled to the data line; a driving transistor coupled between a first power supply line and a second power supply line, the driving transistor comprising a control electrode coupled to the first switching transistor; a first storage capacitor coupled to the first power supply line and directly connected to the first switching transistor and the driving transistor; a second switching transistor coupled to the first power supply line and the driving transistor, and comprising a control electrode coupled to an emission control line; a second storage capacitor coupled to the second switching transistor and directly connected to the first switching transistor, the first storage capacitor, and the driving transistor; and an organic light emitting diode coupled to the driving transistor and the second power supply line.