Invention Grant
- Patent Title: Circuit for providing a temperature-dependent common electrode voltage
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Application No.: US16345707Application Date: 2018-06-12
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Publication No.: US11308906B2Publication Date: 2022-04-19
- Inventor: Sijun Lei , Xu Lu , Shuai Hou , Siqing Fu , Yong Long , Ying Zhang , Shanbin Chen , Fanjian Zeng , Zhicai Xu , Sen Tan , Xinghong Liu , Xiangchao Chen , Yunsong Li , Xin Chen , Yuxu Geng
- Applicant: Chongqing BOE Optoelectronics Technology Co., Ltd. , BOE TECHNOLOGY GROUP CO., LTD.
- Applicant Address: CN Chongqing; CN Beijing
- Assignee: Chongqing BOE Optoelectronics Technology Co., Ltd.,BOE TECHNOLOGY GROUP CO., LTD.
- Current Assignee: Chongqing BOE Optoelectronics Technology Co., Ltd.,BOE TECHNOLOGY GROUP CO., LTD.
- Current Assignee Address: CN Chongqing; CN Beijing
- Agency: Intellectual Valley Law, P.C.
- International Application: PCT/CN2018/090846 WO 20180612
- International Announcement: WO2019/237247 WO 20191219
- Main IPC: G09G3/36
- IPC: G09G3/36

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.
Public/Granted literature
- US20210327381A1 A CIRCUIT FOR PROVIDING A TEMPERATURE-DEPENDENT COMMON ELECTRODE VOLTAGE Public/Granted day:2021-10-21
Information query
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