Invention Grant
- Patent Title: Liquid crystal display gamma circuit outputting positive and negative gamma reference voltage occupying smaller layout space
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Application No.: US17556767Application Date: 2021-12-20
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Publication No.: US11594191B2Publication Date: 2023-02-28
- Inventor: Xueguang Hao , Yongda Ma , Hongfei Cheng
- Applicant: Beijing BOE Technology Development Co., Ltd. , BOE Technology Group Co., Ltd.
- Applicant Address: CN Beijing; CN Beijing
- Assignee: Beijing BOE Technology Development Co., Ltd.,BOE Technology Group Co., Ltd.
- Current Assignee: Beijing BOE Technology Development Co., Ltd.,BOE Technology Group Co., Ltd.
- Current Assignee Address: CN Beijing; CN Beijing
- Agency: IPro, PLLC
- Priority: CN202110031377.3 20210111
- Main IPC: G09G3/36
- IPC: G09G3/36

Abstract:
The present disclosure relates to the field of display technologies, and provides a gamma circuit. The gamma circuit includes: a plurality of positive gamma voltage output terminals, a plurality of negative gamma voltage output terminals in one-to-one correspondence with the plurality of positive gamma voltage output terminals, and a plurality of voltage conversion circuits. Each of the voltage conversion circuits is configured to output a negative gamma reference voltage to the negative gamma voltage output terminal based on a positive gamma reference voltage output by the positive gamma voltage output terminal corresponding to the negative gamma voltage output terminal.
Public/Granted literature
- US20220223118A1 GAMMA CIRCUIT, METHOD FOR DRIVING THE SAME, AND DISPLAY PANEL Public/Granted day:2022-07-14
Information query
IPC分类: