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:
Jan. 04, 2022
Filed:
May. 31, 2019
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;
Yongquan Lu, Beijing, CN;
Yunyun Zhang, Beijing, CN;
HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., Anhui, CN;
BOE TECHNOLOGY GROUP CO., LTD., Beijing, CN;
Abstract
A pixel circuit and driving method thereof, a display device are provided, and the pixel circuit includes a switching sub-circuit, a threshold voltage extraction sub-circuit, an initialization sub-circuit, a feedback compensation sub-circuit, a driving transistor and a light emitting device. The threshold voltage extraction sub-circuit is coupled to a control electrode of the driving transistor, and configured to extract and store a threshold voltage of the driving transistor in response to an enable signal and configured to apply the threshold voltage and a data voltage written by the switching sub-circuit to the control electrode of the driving transistor. The feedback compensation sub-circuit is coupled to a second terminal of the light emitting device and a data line, and configured to generate a data voltage compensation signal for a next display image frame according to an operating current of the light emitting device and supply it to the data line. (FIG.).