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:
Dec. 10, 2019
Filed:
Nov. 16, 2017
Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd., Shenzhen, CN;
Jian He, Shenzhen, CN;
Shensian Syu, Shenzhen, CN;
SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD., Shenzhen, Guangdong, CN;
Abstract
The invention discloses a pixel internal compensation circuit and riving method. The pixel internal compensation circuit comprises: first TFT (T), with gate connected to third control signal (SCAN), source and drain connected to data voltage (Vdata) and first node (A); second TFT (T), with gate connected to first node (A), source and drain connected to second node (B) and high voltage power source (OVDD); third TFT (T), with gate connected to first control signal (SCAN), source and drain connected to first node (A) and reference voltage (Vref); fourth TFT (T), with gate connected to second control signal (SCAN), source and drain connected to second node (B) and initial voltage (Vini); capacitor C, with two ends connected to first node (A) and second node (B); OLED, with anode connected to second node (B), and cathode connected to low voltage power source (OVSS). The invention provides a corresponding driving method. The invention uses parallel driving mode to effectively increase sensing time of threshold voltage compensation to improve compensation effect.