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:
May. 06, 2025
Filed:
May. 31, 2021
Applicant:
Tcl China Star Optoelectronics Technology Co., Ltd., Shenzhen, CN;
Inventor:
Bin Liu, Shenzhen, CN;
Assignee:
TCL China Star Optoelectronics Technology Co., Ltd., Shenzhen, CN;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/3233 (2015.12); G09G 3/32 (2015.12); G09G 3/3266 (2015.12);
U.S. Cl.
CPC ...
G09G 3/3233 (2012.12); G09G 3/32 (2012.12); G09G 3/3266 (2012.12); G09G 2310/0216 (2012.12); G09G 2310/0267 (2012.12);
Abstract
A pixel driving circuit proposed in the present application includes a first transistor, a second transistor, a third transistor, a fourth transistor, a fifth transistor, a sixth transistor, a capacitor and a light-emitting device. In the pixel driving circuit, a threshold-voltage compensation is performed on the first transistor, and this can efficiently improve attenuation of electric current of the light-emitting device caused by a drift of threshold voltage of a drive transistor, thereby improving stability of a display panel.