Patent ID: 8928642
Filing Date: 2015-01-06
Classification: G09G

Abstract:
1. A pixel circuit comprising: an organic light emitting diode; a first transistor having a second electrode coupled to the organic light emitting diode, the first transistor being configured to control an amount of current supplied to the organic light emitting diode; a third transistor coupled between a reference power source and a first node, the first node being directly coupled to a gate electrode of the first transistor and also being directly coupled to the third transistor, the third transistor being configured to be turned on when a scan signal is supplied to a scan line; a second transistor configured to be turned on when the scan signal is supplied to the scan line, the second transistor for electrically coupling a data line and a second node to each other such that a data signal on the data line is applied to the second node when the second transistor is turned on; a fourth transistor coupled between the first node and the second node, the fourth transistor being configured to be turned off when an emission control signal is supplied to an emission control line; a fifth transistor coupled between a first electrode of the first transistor and a first power source, the fifth transistor being configured to be turned off when the emission control signal is supplied to the emission control line; and a storage capacitor coupled between the second node and the first electrode of the first transistor.