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. 04, 2019
Filed:
Nov. 16, 2017
Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd., Shenzhen, CN;
Xuebing Zhou, Shenzhen, CN;
Xiaolong Chen, Shenzhen, CN;
SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD., Shenzhen, Guangdong, CN;
Abstract
The invention discloses a pixel driver circuit and driving method thereof. The pixel driver circuit comprises a first TFT (T) connected to first node (G) and second node (K); a second TFT (T), connected to first control signal (S), first node (G) and second node (K); a third TFT (T), connected to second control signal (S) and second node (K); a fourth TFT (T), connected to first control signal (S), third node (N) and reference voltage (Vref); a fifth TFT (T), connected to first control signal (S), third node (N) and data signal (Vdata); a sixth TFT (T), connected to third control signal (S); a first capacitor (C) and a second capacitor; the reference voltage (Vref) being less than data signal Vdata). The invention also provides a corresponding driving method. The invention uses internal detection to eliminate luminance inconsistency caused by change of the driving TFT threshold voltage.