Patent ID: 8441421
Filing Date: 2013-05-14
Classification: G09G

Abstract:
1. A pixel comprising: an organic light emitting diode comprising a cathode electrode coupled to a second power supply; a first transistor comprising a first electrode coupled to a first power supply, a second electrode, and a gate electrode, the first transistor being for controlling an amount of current that flows to the second power supply through the organic light emitting diode from the first power supply; a second transistor coupled between a data line and the first electrode of the first transistor, and configured to be turned on when a scanning signal is supplied to an i-th scanning line, where “i” is a natural number; a plurality of third transistors coupled between the gate electrode of the first transistor and the second electrode of the first transistor, each of the third transistors being configured to be turned on when the scanning signal is supplied to the i-th scanning line; a plurality of fourth transistors coupled between an initial power supply and the gate electrode of the first transistor, and configured to be turned on when the scanning signal is supplied to an i−1-th scanning line; a first capacitor coupled between the first power supply and the gate electrode of the first transistor; and a second capacitor comprising a first terminal coupled to a first node between two of the third transistors and to a third node between two of the fourth transistors, and a second terminal coupled to the first power supply.