Invention Grant
- Patent Title: Fingerprint circuit, force touch control method and device and computer-readable storage medium
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Application No.: US16111794Application Date: 2018-08-24
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Publication No.: US10936707B2Publication Date: 2021-03-02
- Inventor: Nan Liu
- Applicant: BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.
- Applicant Address: CN Beijing
- Assignee: BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.
- Current Assignee: BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.
- Current Assignee Address: CN Beijing
- Agency: Arch & Lake LLP
- Priority: CN201710739867.2 20170825
- Main IPC: G06F3/041
- IPC: G06F3/041 ; G06K9/00 ; G06F21/32 ; G06F3/03 ; H01L27/146

Abstract:
A fingerprint circuit, and a force touch control method and a device are provided. The fingerprint circuit includes a circuit cover plate, a fingerprint sensor, a light source and an optical sensing device. A specular reflection layer is arranged below the circuit cover plate. The light source, the optical sensing device and the fingerprint sensor are positioned below the specular reflection layer. The light source and the optical sensing device are positioned on two sides of the fingerprint sensor respectively. Light emitted by the light source passes through a gap between the fingerprint sensor and the circuit cover plate to irradiate the specular reflection layer and is reflected to the optical sensing device through the specular reflection layer. The optical sensing device converts the light reflected by the specular reflection layer into an electrical signal, and the electrical signal may be configured for force touch control.
Public/Granted literature
- US20190064989A1 FINGERPRINT CIRCUIT, FORCE TOUCH CONTROL METHOD AND DEVICE AND COMPUTER-READABLE STORAGE MEDIUM Public/Granted day:2019-02-28
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