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:
Apr. 05, 2022
Filed:
Aug. 16, 2018
Hefei Boe Optoelectronics Technology Co., Ltd., Anhui, CN;
Boe Technology Group Co., Ltd., Beijing, CN;
Ran Jiang, Beijing, CN;
Hai Kang, Beijing, CN;
Donghui Wang, Beijing, CN;
Chengchen Yan, Beijing, CN;
Shengfei Ma, Beijing, CN;
HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., Anhui, CN;
BOE Technology Group Co., Ltd., Beijing, CN;
Abstract
The present application discloses a method for driving a pixel circuit. The method includes initializing a voltage setting in a pixel circuit including at least a driving transistor coupled to a light-emitting device and obtaining a first threshold voltage of the driving transistor. The method further includes inputting a first data voltage to the pixel circuit to generate a first driving current independent of the first threshold voltage, to drive light emission of the light-emitting device in a current cycle. Additionally, the method includes generating a compensation voltage via a feedback sub-circuit based on a change of the first driving current upon a second threshold voltage of the light-emitting device. Furthermore, the method includes inputting a second data voltage combined with the compensation voltage as a negative feedback to generate a second driving current to drive light emission of the light-emitting device in a next cycle.