Patent ID: 7847760

Claim:
A pixel circuit comprising: a first capacitor and a second capacitor; a first transistor configured to turn on when a first scan signal is provided from a first scan line to the first transistor so as to electrically connect a data line with a first terminal of the first capacitor; a second transistor comprising a gate which is connected to the first terminal of the first capacitor, the second transistor further comprising a first electrode which is connected to a first terminal of the second capacitor; a third transistor configured to turn on when the first scan signal is provided to the third transistor so as to provide a first voltage to the second terminal of the first capacitor and the second terminal of the second capacitor; a fourth transistor connected to the first electrode of the second transistor and to a first power source, the fourth transistor configured to turn off when the second scan signal is supplied from the second scan line to the fourth transistor, and to turn on when the second scan signal is not supplied from the second scan line to the fourth transistor; and an organic light emitting diode coupled between the second transistor and a second power source.