Invention Application
- Patent Title: PHOTOCURRENT AMPLIFICATION CIRCUIT, AMPLIFICATION CONTROL METHOD, OPTICAL DETECTION MODULE AND DISPLAY APPARATUS
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Application No.: US18032923Application Date: 2022-01-25
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Publication No.: US20240377250A1Publication Date: 2024-11-14
- Inventor: Xinshe Yin , Hui Zhao , Xinbin Han
- Applicant: BOE TECHNOLOGY GROUP CO., LTD.
- Applicant Address: CN Beijing
- Assignee: BOE TECHNOLOGY GROUP CO., LTD.
- Current Assignee: BOE TECHNOLOGY GROUP CO., LTD.
- Current Assignee Address: CN Beijing
- International Application: PCT/CN2022/073824 WO 20220125
- Main IPC: G01J1/44
- IPC: G01J1/44 ; H03H7/06

Abstract:
A photocurrent amplification circuit, an amplification control method, an optical detection module and a display apparatus are provided, where the photocurrent amplification circuit includes a photoelectric sensor, a compensation circuit, a reset circuit, an energy storage circuit and a drive circuit, and the photoelectric sensor is configured to sense the optical signal and convert the optical signal into the photocurrent signal; the compensation circuit controls the communication between the control terminal of the drive circuit and the first terminal of the drive circuit under the control of the compensation control signal; the reset circuit controls the communication between the first voltage terminal and the control terminal of the drive circuit under the control of the reset control signal.
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