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:
Apr. 10, 2018
Filed:
Oct. 12, 2015
Shenzhen China Star Optoelectronics Technology Co., Ltd., Shenzhen, CN;
Pengfei Liang, Shenzhen, CN;
SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD., Shenzhen, Guangdong, CN;
Abstract
The present invention provides an AMOLED real-time compensation system, comprising a source drive and real-time detection compensation integration module (), in which a first operational amplifier and a second operational amplifier are provided. The positive, negative input ends of the first operational amplifier (Y) respectively receive the drive thin film transistor source target voltage and the drive thin film transistor source actual voltage, and the output end outputs the difference value (ΔV) of the drive thin film transistor source target voltage and the actual voltage to implement real-time detection to a threshold voltage deviation of the drive thin film transistor (T). Then, the second operational amplifier (Y) accumulates the voltage difference value (ΔV) of the drive thin film transistor source target voltage and the actual voltage outputted by the outputted end of the first operational amplifier (Y) to the data signal (data) voltage to implement real-time compensation to the threshold voltage deviation of the drive thin film transistor (T). The real-time measurement, real-time compensation to each pixel unit can be realized and all the gray scale data signals (data) can be effectively compensated.