Patent ID: 8237637
Filing Date: 2012-08-07
Classification: G09G

Abstract:
1. An organic light emitting display comprising a scan signal line forwarding a scan signal, an emission control signal line forwarding an emission control signal, an emission reverse control signal line forwarding an emission reverse control signal, a data line sending a data signal, and a pixel coupled to the scan signal line, the emission control signal line, the emission reverse control signal line, and the data line, the organic light emitting diode display, wherein the pixel includes: a first switching transistor transmitting a data signal from the data line in response to the scan signal of the scan signal line; a driving transistor, coupled to the first switching transistor, controlling driving current from a first power source line; a storage capacitor coupled between the driving transistor and the first power source line; an organic light emitting diode, coupled between the driving transistor and a second power source line, displaying an image with the driving current controlled by the driving transistor; an initial switching transistor, coupled between the storage capacitor and an initial power source line, initializing the storage capacitor; and a switching transistor, coupled between the second power source line and the initial power source line, a control electrode of the switching transistor is coupled to the emission reverse control signal line, the emission reverse control signal line is an inverted signal of the emission control signal line, and the switching transistor applies a reverse bias voltage to the organic light emitting diode, wherein the respective pixels are classified into an odd line and an even line in the horizontal direction and driving periods of the pixels on the odd and even lines are classified into a storage period for storing a data voltage and a threshold voltage of the driving transistor and a light emission period.