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.

Date of Patent:
Feb. 23, 2021

Filed:

Jun. 19, 2019
Applicants:

Hefei Xinsheng Optoelectronics Technology Co., Ltd., Anhui, CN;

Boe Technology Group Co., Ltd., Beijing, CN;

Inventors:

Shenghua Hu, Beijing, CN;

Chunyang Nie, Beijing, CN;

Ke Dai, Beijing, CN;

Kun Yang, Beijing, CN;

Ruilian Li, Beijing, CN;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C 19/28 (2006.01); G09G 3/20 (2006.01);
U.S. Cl.
CPC ...
G11C 19/287 (2013.01); G09G 3/20 (2013.01); G09G 2300/0426 (2013.01); G09G 2300/0809 (2013.01); G09G 2310/0286 (2013.01); G09G 2310/08 (2013.01); G09G 2330/021 (2013.01);
Abstract

A voltage control circuit, a shift register unit, and a display device are provided. The voltage control circuit is applied to a shift register unit, the shift register unit includes a gate-driving-signal output end, and the voltage control circuit includes a discharge control end, a discharge circuit and a discharge voltage end. The discharge circuit is configured to, under control of a signal inputted by the discharge control end, control to electrically disconnect the gate-driving-signal output end from the discharge voltage end during a display period of a display screen, and control to electrically connect the gate-driving-signal output end to the discharge voltage end during a shutdown period of the display screen.


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