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. 17, 2022
Filed:
Apr. 22, 2021
Kunshan Go-visionox Opto-electronics Co., Ltd., Kunshan, CN;
Yuqing Wang, Kunshan, CN;
KUNSHAN GO-VISIONOX OPTO-ELECTRONICS CO., LTD., Kunshan, CN;
Abstract
A device for dimming a display screen includes a pixel driving circuit including a first Thin-Film Transistor, a second Thin-Film Transistor, a third Thin-Film Transistor, a capacitor and a pixel. Signals received by a gate of the first Thin-Film Transistor and a first electrode of the first Thin-Film Transistor correspond to a scanning signal Vscan and a data signal Vdata, respectively. Signals received by a gate of the third Thin-Film Transistor and a first electrode of the third Thin-Film Transistor correspond to a Vpwm signal and a transmitted signal transmitted from a second electrode of the second Thin-Film Transistor, respectively. A second electrode of the third Thin-Film Transistor is connected to the pixel. The capacitor is connected between the gate of the second Thin-Film Transistor and a power supply.