Invention Grant
- Patent Title: Ultrasonic induction circuit, driving method thereof, display device and storage medium
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Application No.: US17265802Application Date: 2020-07-02
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Publication No.: US11537241B2Publication Date: 2022-12-27
- Inventor: Yingming Liu , Haisheng Wang , Xiaoliang Ding , Lei Wang , Pengpeng Wang , Changfeng Li , Xiufeng Li , Chenyang Zhang , Tianqi Wang
- 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
- Agency: Ling and Yang Intellectual Property
- Agent Ling Wu; Stephen Yang
- Priority: CN201910599313.6 20190704
- International Application: PCT/CN2020/099925 WO 20200702
- International Announcement: WO2021/000914 WO 20210107
- Main IPC: G06F3/043
- IPC: G06F3/043 ; G06V40/13 ; B06B1/02 ; B06B1/06

Abstract:
An ultrasonic induction circuit is provided, a first electrode of an ultrasonic sensor is electrically connected with a first terminal of the ultrasonic sensing circuit, a second electrode is electrically connected with a second terminal of a first potential supply sub-circuit, and the first terminal of the first potential supply sub-circuit is electrically connected with a first potential supply end. A gate of M1 is electrically connected with the second electrode and the second terminal of the compensation sub-circuit. The second electrode is electrically connected with the first terminal of the compensation sub-circuit. The first electrode is coupled to the second potential supply end. The first terminal of the signal output sub-circuit is electrically connected to the second electrode of the first transistor, and the second terminal is electrically connected to the second terminal of the ultrasonic induction circuit.
Public/Granted literature
- US20210165524A1 Ultrasonic Induction Circuit, Driving Method Thereof, Display Device and Storage Medium Public/Granted day:2021-06-03
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