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:
Sep. 27, 2022
Filed:
Apr. 29, 2020
Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd., Guangdong, CN;
Xiaodong Zhang, Guangdong, CN;
Sangcheol Song, Guangdong, CN;
Abstract
The present invention provides a pixel driving circuit and a display panel. The pixel driving circuit includes a light emitting module and a compensation driving module which are electrically connected. The compensation driving module includes a doubled-gate driving thin film transistor, and is configured to charge a bottom gate of the doubled-gate driving thin film transistor and adjust a threshold voltage to an initial value in an initial stage. The compensation driving module receives a reference voltage to discharge the bottom gate of the doubled-gate driving thin film transistor in a threshold voltage compensation, realizing a compensation of the threshold voltage.