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. 28, 2023
Filed:
Sep. 04, 2020
Applicant:
Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd., Wuhan, CN;
Inventor:
Hong Fang, Wuhan, CN;
Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H10K 77/10 (2023.01); H01L 27/146 (2006.01); H10K 50/84 (2023.01); H10K 59/12 (2023.01); H10K 59/40 (2023.01); H10K 59/65 (2023.01); H10K 71/00 (2023.01); H10K 102/00 (2023.01); H10K 50/844 (2023.01);
U.S. Cl.
CPC ...
H10K 77/111 (2023.02); H01L 27/14623 (2013.01); H10K 50/841 (2023.02); H10K 50/844 (2023.02); H10K 59/12 (2023.02); H10K 59/40 (2023.02); H10K 59/65 (2023.02); H10K 71/00 (2023.02); H10K 59/1201 (2023.02); H10K 2102/311 (2023.02);
Abstract
A pixel driving circuit and a display panel are provided. The pixel driving circuit includes a control unit to output a control signal by detecting a voltage difference between two opposite ends of a sampling resistor, and to turn on a fourth switch by the control signal. When the fourth switch is turned on, a second positive voltage received by the pixel driving circuit charges a second node to further speed up a voltage pulling up of the second node to improve a detecting speed of the pixel driving circuit.