Patent ID: 11915649
Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A pixel circuit, comprising:
a light emitting device, applied with a first power signal and a second power signal;
a data signal writing module, outputting a data signal in response to a first scan signal;
a driving transistor, having a source coupled to the data signal writing module;
a threshold voltage compensation module, fed with coupled to a second scan signal and the first power signal, and connected to a drain of the driving transistor and a gate of the driving transistor;
a first initialization module, fed with a control signal and a first initial signal, and connected to the gate of the driving transistor;
a light emitting control module, fed with a light control signal, the first power signal and the second power signal; and
a coupling capacitor, fed with an adjusting signal and connected to the first initialization module or the threshold voltage compensation module,
wherein the threshold voltage compensation module comprises:
a second transistor, having a gate fed with the second scan signal, a source coupled to the gate of the driving transistor, and a drain coupled to a first node;
a seventh transistor, having a gate fed with the first scan signal, a source coupled to a first node, and a drain coupled to the drain of the driving transistor; and
a first capacitor, fed with the first power signal and coupled to the gate of the driving transistor.