The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 25, 2019
Filed:
Dec. 16, 2016
Shenzhen China Star Optoelectronics Technology Co., Ltd., Shenzhen, CN;
Yuying Cai, Shenzhen, CN;
SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD., Shenzhen, Guangdong, CN;
Abstract
The invention discloses an AMOLED pixel driver circuit and pixel driving method, by using a pixel driver circuit of 4T1C or 4T2C structure to effectively compensate threshold voltage of driving TFT in each pixel; through adding a third TFT (T) and a fourth TFT (T) and introducing the first scan signal (SEL) to control the third TFT (T) and the fourth TFT (T) to respectively writing the initialization signal (INI) to initialize the gate and the source of the driving TFT in reset phase so as to reduce the complexity of the power supply signal so that the circuit can use DC power supply directly; by adding a second capacitor (C) to regulate the influence on the source voltage of the driving TFT by the data signal (DATA) so as to reduce the data signal complexity. As a result, the data signal only needs to switch once.