Patent ID: 8599114
Filing Date: 2013-12-03
Classification: G09G

Abstract:
1. A pixel comprising: an organic light emitting diode; a first transistor coupled to a scan line and a data line, the first transistor configured to be turned on when a scan signal is supplied to the scan line; a storage capacitor for storing a voltage corresponding to a data signal supplied to the data line; a second transistor for supplying a current corresponding to the voltage stored in the storage capacitor, the current flowing from a first power supply to a second power supply via the organic light emitting diode; and a compensation unit for controlling a voltage of a gate electrode of the second transistor corresponding to a deterioration of the organic light emitting diode, and for coupling a first electrode of the second transistor to the data line during a compensation period in which a threshold voltage of the second transistor is compensated, wherein the compensation unit comprises: