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:
Feb. 16, 2021
Filed:
Nov. 26, 2018
Wuhan China Star Optoelectronics Technology Co., Ltd., Wuhan, CN;
Zuomin Liao, Wuhan, CN;
Dian Zhang, Wuhan, CN;
Abstract
The present invention provides a pixel driving circuit, a display panel, and a display device. The pixel driving circuit includes: an upper plate of a liquid crystal capacitor and an upper plate of a storage capacitor both connected to a drain of a driving thin film transistor, and a lower plate of the liquid crystal capacitor and a lower plate of the storage capacitor both connected to a voltage regulator module. When the display panel is powered off, the voltage regulator module keeps a voltage difference between the upper and lower plates of the liquid crystal capacitor and the upper and lower plates of the storage capacitor constant.