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:
Nov. 06, 2018
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 3T2C structure to effectively compensate threshold voltage of driving TFT in each pixel; through adding a third TFT (T) and introducing control signal voltage (Vc) to control the third TFT (T) to prevent current from flowing through in the threshold voltage detection phase and threshold voltage compensation phase so as to reduce the complexity of the power supply (Vdd); by adding a second capacitor (C) to regulate the influence on the source voltage of the driving TFT by the data signal voltage (VData) so as to reduce the data signal complexity. As a result, the data signal only needs to switch once.