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:
Jul. 25, 2023
Filed:
Dec. 15, 2021
Chongqing Boe Optoelectronics Technology Co., Ltd., Chongqing, CN;
Boe Technology Group Co., Ltd., Beijing, CN;
Zhiyong Ning, Beijing, CN;
Zhonghao Huang, Beijing, CN;
Xu Wu, Beijing, CN;
Kunkun Gao, Beijing, CN;
Chao Zhang, Beijing, CN;
Can Wang, Beijing, CN;
Maokun Tian, Beijing, CN;
Chongqing BOE Optoelectronics Technology Co., Ltd., Chongqing, CN;
BOE TECHNOLOGY GROUP CO., LTD., Beijing, CN;
Abstract
A shift register, a gate drive circuit, and a display panel are provided. The shift register includes an input sub-circuit configured to pre-charge a pull-up node using an input signal; an output sub-circuit configured to output a clock signal through an signal output terminal; a pull-down control sub-circuit configured to control a potential of a pull-down node using a power supply voltage signal; a first pull-down sub-circuit configured to pull down a potential of the pull-down node using a first preset voltage signal; and a first control sub-circuit configured to control the potential of the pull-up node using a second preset voltage signal in response to the potential of the pull-down node; a potential of the first preset voltage signal is lower than a potential of a non-operating level signal of the first pull-down sub-circuit, but higher than a potential of the second preset voltage signal.