Patent ID: 7692613

Claim:
A pixel circuit comprising: a light emitting device; a driver for supplying a pixel current to the light emitting device corresponding to a data signal supplied from a data line; a first switching unit coupled between the driver and the data line and turned on during a first period of a horizontal period, the horizontal period being divided into the first period and a second period and turned off and on at least once during the second period of the horizontal period; and a second switching unit coupled between the data line and a common node between the driver and the light emitting device, the second switching unit being turned off during the first period and turned on and off alternately with the first switching unit during the second period, wherein the driver includes: a first transistor for generating the pixel current from a voltage supplied by a first power line, the pixel current corresponding to the data signal and being supplied to the light emitting device; a first capacitor coupled between the first transistor and the first switching unit capable of being charged with a voltage corresponding to a threshold voltage of the first transistor; and a second capacitor having a first terminal coupled to a node between the first capacitor and the first switching unit, and a second terminal coupled to the first power line and chargeable with a voltage corresponding to the data signal.