Fingerprint identification device and electronic equipment

Abstract

The embodiment of the invention discloses a fingerprint identification device and electronic equipment. The performance of the fingerprint identification device can be improved. The fingerprint identification device is suitable for being arranged below a display screen to realize optical fingerprint identification under the screen, the fingerprint identification device comprises a plurality of fingerprint identification units, and each fingerprint identification unit comprises a micro lens; at least two light blocking layers, wherein each light blocking layer is provided with a light through hole to form three light guide channels in different directions; the three pixel units are respectively positioned at the bottoms of the three light guide channels; wherein after fingerprint optical signals returned from a finger above the display screen are converged through the micro lens, three target fingerprint optical signals in different directions are transmitted to the three pixel units through the three light guide channels respectively. A plurality of groups of three pixel units in the fingerprint identification device receive fingerprint optical signals in three different directionsand convert the fingerprint optical signals into three fingerprint images, the three fingerprint images are moved and reconstructed into a reconstructed image, and the reconstructed image is used forfingerprint identification.

Description

[0001] This application claims priority from the following applications, the entire contents of which are hereby incorporated by application: [0002] On August 23, 2019, a PCT application with the application number PCT / CN2019 / 102366 and the title of the invention "fingerprint detection device, method and electronic equipment" was submitted to the China Patent Office; [0003] On October 18, 2019, a PCT application with the application number PCT / CN2019 / 111978 and the title of the invention "Fingerprint Detection Device and Electronic Equipment" was submitted to the China Patent Office. technical field [0004] The present application relates to the technical field of fingerprint identification, and more specifically, to a fingerprint identification device and electronic equipment. Background technique [0005] With the rapid development of the terminal industry, people pay more and more attention to biometric technology, and the more convenient off-screen biometric technol...

AI Technical Summary

Problems solved by technology

With this technical solution, the overall light input of the fingerprint recognition device is small, the exposure time is long, the overall imaging quality is poor, and the recognition performance for dry fingers is not good.

At the same time, the thickness of the optical path in the fingerprint identification device is thick, which increases the processing difficulty and cost of the optical path, and is not conducive to the development of thinner and lighter fingerprint identification devices.

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