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:
Nov. 15, 2022
Filed:
Mar. 31, 2020
Chengdu Boe Optoelectronics Technology Co., Ltd., Sichuan, CN;
Boe Technology Group Co., Ltd., Beijing, CN;
Ziyang Yu, Beijing, CN;
Zhu Wang, Beijing, CN;
Sheng Hu, Beijing, CN;
Tianliang Liu, Beijing, CN;
Guo Liu, Beijing, CN;
CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., Sichuan, CN;
BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD., Beijing, CN;
Abstract
A pixel circuit includes: pixel units, wherein each pixel unit includes a light-emitting element and a pixel driving circuit, the pixel driving circuit and the light-emitting element are electrically connected to a first node; a first compensation sub-circuit electrically connected to each pixel driving circuit, and configured to provide an initialization signal to the pixel driving circuit, obtain a voltage at the first node when the light-emitting element emits light via the pixel driving circuit, and generate a compensation data signal based on the voltage at the first node; and a second compensation sub-circuit electrically connected to each pixel driving circuit and configured to keep the voltage at the first node within a set operating voltage range of the light-emitting element. The pixel driving circuit is further configured to initialize the first node based on the initialization signal, and use the compensation data signal to drive the light-emitting element.