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. 04, 2018
Filed:
Mar. 15, 2017
Shenzhen China Star Optoelectronics Technology Co., Ltd., Shenzhen, CN;
Jimu Kuang, Shenzhen, CN;
SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD., Shenzhen, Guangdong, CN;
Abstract
The OLED pixel driving circuit adds the third thin film transistor (T) and arranges the switch (K) on the basis of the 2T1C structure. The first pin (K) of the switch (K) is electrically coupled to the drain of the third thin film transistor (T), and the second pin (K) is electrically coupled to the digital to analog converter (DAC), and the third pin is electrically coupled to the analog to digital converter (ADC). The switch signal (Switch) is used to control the switch (K) to connect the first pin (K) and the second pin (K) for entering the display mode, and the switch signal (Switch) is used to control the switch (K) to connect the first pin (K) and the third pin (K) for entering the sensing mode so that the analog to digital converter (ADC) can sense the threshold voltage (Vth) of the second thin film transistor (T).