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:
May. 03, 2022
Filed:
Feb. 17, 2020
Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd., Shenzhen, CN;
Xiang Xiao, Shenzhen, CN;
Yan Xue, Shenzhen, CN;
Abstract
Provided are a pixel circuit, a display panel, and a compensation method of a reference voltage of a pixel circuit, including a plurality of pixel internal driving circuits arranged in an array. The internal driving circuit of each pixel includes: a first thin film transistor (T), a second thin film transistor (T), a fourth thin film transistor (T), a first capacitor (C), an organic light emitting diode (D), and a compensation module. By setting the compensation module, the compensation module is connected to a scan signal (EM). An end of the compensation module is connected to a first node (G), and another end of the compensation module is connected to a power supply voltage (VDD). The compensation module is configured to compensate a potential drop of the first node (G) due to coupling of the first capacitor (C).