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. 30, 2025
Filed:
Apr. 18, 2023
Chengdu Boe Optoelectronics Technology Co., Ltd., Sichuan, CN;
Boe Technology Group Co., Ltd., Beijing, CN;
Changlong Yuan, Beijing, CN;
Chengdu BOE Optoelectronics Technology Co., Ltd., Sichuan, CN;
BOE TECHNOLOGY GROUP CO., LTD., Beijing, CN;
Abstract
Provided are a pixel driving circuit () and a driving method, a display panel () and a display device (). The pixel driving circuit () includes: a driving sub-circuit () connected to a light-emitting element (); a data writing sub-circuit () configured to write a data signal from the data signal terminal (Vdata) into the driving sub-circuit () and apply the data signal to a leakage current compensation point (M), under control of the scanning signal terminal (Vscan); and a light-emitting control sub-circuit () configured to control the driving sub-circuit () to output a driving current related to the data signal to the light-emitting element () under control of the light-emitting control signal terminal (EM). In a process of emitting light by the light-emitting element (), a voltage of a control electrode of the driving sub-circuit () is compensated by a voltage of the leakage current compensation point (M).