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:
Apr. 19, 2022
Filed:
Jun. 12, 2018
Chongqing Boe Optoelectronics Technology Co., Ltd., Chongqing, CN;
Boe Technology Group Co., Ltd., Beijing, CN;
Sijun Lei, Beijing, CN;
Xu Lu, Beijing, CN;
Shuai Hou, Beijing, CN;
Siqing Fu, Beijing, CN;
Yong Long, Beijing, CN;
Ying Zhang, Beijing, CN;
Shanbin Chen, Beijing, CN;
Fanjian Zeng, Beijing, CN;
Zhicai Xu, Beijing, CN;
Sen Tan, Beijing, CN;
Xinghong Liu, Beijing, CN;
Xiangchao Chen, Beijing, CN;
Yunsong Li, Beijing, CN;
Xin Chen, Beijing, CN;
Yuxu Geng, Beijing, CN;
Chongqing BOE Optoelectronics Technology Co., Ltd., Chongqing, CN;
BOE Technology Group Co., Ltd., Beijing, CN;
Abstract
The present application discloses a circuit for providing a temperature-dependent common electrode voltage. The circuit includes a sensing sub-circuit coupled between a power-supply terminal and a ground terminal and configured to generate a first voltage for controlling a switching sub-circuit to connect the power-supply terminal to a first node. The circuit further includes a compensation sub-circuit coupled between the first node and the ground terminal and be enabled, when the first voltage decreases below a threshold as temperature increases above a threshold temperature, to output a temperature-dependent second voltage proportional to the temperature to a second node. Additionally, the circuit includes an output sub-circuit coupled to the second node combined with a first input-voltage terminal and further coupled to a second input-voltage terminal, to generate a temperature-dependent output voltage based on a weighted mixing of the temperature-dependent second voltage, a first input voltage, and a second input voltage.