Patent ID: 9514672
Filing Date: 2016-12-06
CPC Classification: G09G,H05B,Y02B

Claim Text:
1. A pixel circuit, comprising: a first p-type metal oxide semiconductor (PMOS) transistor having a first electrode connected to a first voltage, a gate electrode connected to a scan line, and a second electrode; a second PMOS transistor having a first electrode connected to the second electrode of the first PMOS transistor, a gate electrode directly connected to a first data line, and a second electrode connected to a first node; a third PMOS transistor having a first electrode connected to a second voltage, a gate electrode connected to the scan line, and a second electrode; a fourth PMOS transistor having a first electrode connected to the second electrode of the third PMOS transistor, a gate electrode directly connected to a second data line, and a second electrode connected to the first node; a fifth PMOS transistor having a first electrode connected to a first power supply voltage, a gate electrode connected to the first node, and a second electrode; a storage capacitor having a first electrode connected to the first node, and a second electrode connected to the first electrode of the fifth PMOS transistor; and an organic light emitting diode having an anode electrode connected to the second electrode of the fifth PMOS transistor, and a cathode electrode connected to a second power supply voltage; wherein the pixel circuit is included in an organic light emitting display device that sequentially displays a previous frame and a current frame, previous data of the pixel circuit corresponds to the previous frame, and current data of the pixel circuit corresponds to the current frame; and wherein when the current data is substantially the same as the previous data, the first and third PMOS transistors are turned on in response to a scan signal received from the scan line, and the second and fourth PMOS transistors are turned off in response to a first data signal received from the first data line and a second data signal received from the second data line.