Patent ID: 8482495
Filing Date: 2013-07-09
Classification: G09G

Abstract:
1. A pixel positioned at an (i)th pixel row, the pixel comprising: an organic light emitting diode (OLED); a pixel circuit comprising a driving transistor for supplying a current to the OLED, a first switching transistor directly coupled to an (i)th scan line and a data line and configured to be turned on when a scan signal is supplied to the (i)th scan line to supply a data signal supplied to the data line to a first electrode of the driving transistor, the pixel circuit being configured to compensate for a threshold voltage variation of the driving transistor, the pixel circuit further comprising a storage capacitor coupled between a gate electrode of the driving transistor and an (i−1)th emission control line and configured to directly receive an emission control signal from the (i−1)th emission control line; and a compensating unit for controlling a voltage of the gate electrode of the driving transistor to compensate for deterioration of the OLED, wherein the compensating unit comprises: wherein i is a natural number, and wherein a first electrode of the storage capacitor is coupled to the gate electrode of the driving transistor, and a second electrode of the storage capacitor is coupled to the (i−1)th emission control line.