Patent ID: 9589507
Date: 2017-03-07
CPC Classifications: G09G

Claim:
1. A driving circuit for an active matrix organic light-emitting diode (AMOLED), consisting essentially of: a scanning line for providing a scanning voltage; a reverse scanning line for providing a reverse scanning voltage reverse to the scanning voltage; a data line for providing a data voltage; a storage capacitor; a CMOS transmission gate having two control terminals, an input terminal and an output terminal, the two control terminals respectively electrically coupled to the scanning line and the reverse scanning line, the input terminal electrically coupled to the data line, the output terminal electrically coupled to the storage capacitor, the CMOS transmission gate configured to couple the data voltage to the storage capacitor via control of the scanning voltage and the reverse scanning voltage; a first transistor having a control terminal, a first terminal and a second terminal which are respectively electrically coupled to the storage capacitor, a power voltage and an OLED; and a second transistor, a third transistor and a fourth transistor respectively having a control terminal, a first terminal and a second terminal, wherein the first terminal of the second transistor is electrically coupled to the second terminal of the first transistor, the control terminal of the second transistor is electrically coupled to an emitting control signal, the second terminal of the second transistor is electrically coupled to the OLED; the first terminal of the third transistor is electrically coupled to a second terminal of the storage capacitor, the control terminal of the third transistor is electrically coupled to the scanning line, the second terminal of the third transistor is electrically coupled to the first terminal of the second transistor; and the first terminal of the fourth transistor is electrically coupled to a first terminal of the storage capacitor and the output terminal of the CMOS transmission gate, the control terminal of the fourth CMOS transistor is electrically coupled to a discharge signal, the second terminal of the fourth transistor is electrically coupled to the first terminal of the third transistor.