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Fingerprint identification device and electronic device

A technology for fingerprint recognition and electronic equipment, which is applied in character and pattern recognition, acquisition/organization of fingerprints/palmprints, optics, etc. It can solve the problems of large imaging distortion of fingerprint recognition devices, large loss of light energy, and long exposure time of sensors. Achieve the effects of avoiding light loss, reducing imaging distortion, and reducing exposure time

Active Publication Date: 2019-05-21
SHENZHEN GOODIX TECH CO LTD
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

The first is the off-screen optical fingerprint recognition technology based on the periodic microhole array, which has a large loss of light energy and long sensor exposure time; the other is the off-screen optical fingerprint recognition technology based on the microlens. The imaging distortion of the fingerprint identification device is relatively large

Method used

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  • Fingerprint identification device and electronic device
  • Fingerprint identification device and electronic device
  • Fingerprint identification device and electronic device

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Embodiment Construction

[0042] In order to enable those skilled in the art to better understand the technical solutions in the embodiments of the present application, the following will clearly and completely describe the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application. Apparently, the described embodiments are only some of the embodiments of the present application, but not all of them. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application shall fall within the protection scope of the embodiments of the present application.

[0043] A common application scenario, the fingerprint identification device provided by the embodiment of the present application can be applied to smart phones, tablet computers and other mobile terminals with display screens or other terminal devices; more specifically, in the above terminal devices, the fingerpri...

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Abstract

The embodiment of the present application provides a fingerprint identification device and an electronic device. The fingerprint identification device includes: a micro telecentric lens array group for receiving an optical signal formed by reflection of a human finger; and a fingerprint sensor disposed below the micro telecentric lens array set and used for imaging based on the optical signal passing through the micro telecentric lens array set. The fingerprint identification device and the electronic device of the embodiment of the present invention can avoid the light loss in the vertical direction with respect to the scheme of the periodic through-hole array, thereby reducing the exposure time of the fingerprint sensor. The fingerprint recognition device also reduces the imaging distortion of the entire system relative to the microlens scheme. The fingerprint recognition device is capable of improving the image quality and contrast.

Description

technical field [0001] The present application relates to the technical field of fingerprint identification, in particular to a fingerprint identification device and electronic equipment. Background technique [0002] There are two main types of disclosed under-screen optical fingerprint recognition device technologies. The first is the off-screen optical fingerprint recognition technology based on the periodic microhole array, which has a large loss of light energy and long sensor exposure time; the other is the off-screen optical fingerprint recognition technology based on the microlens. The imaging distortion of the fingerprint identification device is relatively large. Contents of the invention [0003] In view of this, the embodiment of the present application provides a fingerprint identification device and electronic equipment, which can avoid light loss in the vertical direction and reduce the exposure time of the fingerprint sensor compared with the solution of t...

Claims

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Application Information

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IPC IPC(8): G06K9/00
CPCG02B13/18G06V40/1318
Inventor 蒋鹏
Owner SHENZHEN GOODIX TECH CO LTD
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