Patent ID: 9007283
Filing Date: 2015-04-14
Classification: G09G,H01L

Abstract:
1. A pixel comprising: an organic light emitting diode of which a cathode electrode is connected to a second power supply; a first transistor for controlling the amount of current that flows to the second power supply through the organic light emitting diode from a first power supply; a second transistor connected between a data line and a second node, and turned on by a scanning signal supplied to an i-th scanning line, wherein i is a natural number; a first capacitor connected between a first node and the second node, wherein the first node is connected to a gate electrode of the first transistor; a second capacitor connected between the first power supply and the first node; a plurality of third transistors connected between the first node and a second electrode of the first transistor, wherein the third transistors are turned on by the scanning signal supplied to the i-th scanning line; a plurality of fourth transistors connected between an initial power supply and the first node, and turned on by a scanning signal supplied to the i-1-th scanning line to supply initial power to the gate electrode of the first transistor; and a leakage current prevention unit for supplying a fixed voltage to a fourth node between the fourth transistors and to a third node between the third transistors,