Patent · US Active

Fingerprint recognition module, screen assembly, and electronic device

US11625944B2 · kind B2 · utility

0Cited by

1References

20Claims

0Family size

Assignee

Huawei Technologies Co., Ltd. · CN

Inventors

Jiao Lin · Kirkland, US
Xu Peng · Shenyang, CN
Xiujuan Wan · 红钢城街道, CN

Key dates

Filing date	Apr 15, 2020
Grant date	Apr 11, 2023
Priority date	—
Expiry date	Apr 15, 2040

Classification

Technology area (CPC H)Electricity
CPC primaryH04M2250/12
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

A fingerprint recognition system is disposed below a screen assembly of an electronic device and includes a light-emitting diode (LED), an image sensor, and a light shielding member. A light emitting surface of the LED faces the screen assembly and is configured to emit an optical signal. A photosensitive surface of the image sensor faces the screen assembly, where the optical signal received by the image sensor includes a fingerprint optical signal returned after being emitted by the LED to a finger, to generate a fingerprint image. The light shielding member is located between the LED and the image sensor, to block a part of signal light emitted by the LED.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.