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. 18, 2022
Filed:
Jul. 17, 2018
Beijing Boe Optoelectronics Technology Co., Ltd, Beijing, CN;
Boe Technology Group Co., Ltd, Beijing, CN;
Lei Mi, Beijing, CN;
Yanna Xue, Beijing, CN;
Zhiying Bao, Beijing, CN;
Yong Zhang, Beijing, CN;
Lu Bai, Beijing, CN;
Gang Hua, Beijing, CN;
Jingpeng Wang, Beijing, CN;
Haobo Fang, Beijing, CN;
BEIJING OPTOELECTRONICS TECHNOLOGY CO., LTD., Beijing, CN;
BOE TECHNOLOGY GROUP CO., LTD., Beijing, CN;
Abstract
A shift register unit and a driving method thereof, a gate driving circuit and a driving method thereof, and a display device are provided to improve a stability of the shift register unit. The shift register unit includes a first input circuit, a second input circuit, an output circuit, a first pull-down circuit, and a second pull-down circuit and further includes: a first pull-down control circuit configured to control a level of the first pull-down node; a second pull-down control circuit configured to output a voltage of the third voltage terminal to the first pull-down node under the control of the fifth voltage terminal; a third pull-down control circuit configured to control a level of the second pull-down node; and a fourth pull-down control circuit configured to output the voltage of the third voltage terminal to the second pull-down node under the control of the fourth voltage terminal.