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Fingerprint module, fingerprint recognition system and electronic equipment

A fingerprint module and fingerprint recognition technology, which can be used in character and pattern recognition, acquisition/organization of fingerprints/palmprints, instruments, etc. Effect

Pending Publication Date: 2020-07-17
VIVO MOBILE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a fingerprint module, a fingerprint recognition system, and electronic equipment to solve the problem of low recognition accuracy of optical fingerprints when unlocking a mobile terminal through optical fingerprints

Method used

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  • Fingerprint module, fingerprint recognition system and electronic equipment
  • Fingerprint module, fingerprint recognition system and electronic equipment
  • Fingerprint module, fingerprint recognition system and electronic equipment

Examples

Experimental program
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Embodiment Construction

[0021] With the development of science and technology, users can unlock mobile terminals through optical fingerprints. Generally, fingerprint modules can be placed under the screen of mobile terminals. When users unlock, they can press the screen with their fingers, and the screen can emit light and The fingerprint of the finger is irradiated, and after reflection, the incident light containing fingerprint information can be incident into the fingerprint module, and the incident light can be irradiated to the optical fingerprint chip through the lens and filter in turn, and the optical fingerprint chip can generate the fingerprint image, and in the When the fingerprint image is consistent with the fingerprint image reserved in the mobile terminal, the mobile terminal is unlocked.

[0022] Generally, after the above-mentioned incident light is irradiated on the optical fingerprint chip, the optical fingerprint chip can generate a clear fingerprint image under the condition that ...

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Abstract

The invention discloses a fingerprint module, a fingerprint recognition system and electronic equipment. The fingerprint module comprises a lens, a crystal and an optical fingerprint chip, the crystalis an anisotropic medium, the lens is located on one side of the crystal, the optical fingerprint chip is located on the other side of the crystal, and the optical fingerprint chip is fixed in a substrate of electronic equipment; incident light containing fingerprint information enters the crystal through the lens and enters the optical fingerprint chip after being refracted by the crystal, the optical fingerprint chip is used for generating a fingerprint image, and the fingerprint image is used for fingerprint recognition. Thus, since the crystal is an anisotropic medium and the anisotropicmedium has a birefringent effect, the optical fingerprint chip can generate a fingerprint image without moire based on the light refracted by the crystal, thereby improving the accuracy of fingerprintrecognition.

Description

technical field [0001] The invention relates to the field of fingerprint identification, in particular to a fingerprint module, a fingerprint identification system and electronic equipment. Background technique [0002] Currently, when unlocking a mobile terminal, optical fingerprints can be used for unlocking. [0003] Specifically, a fingerprint module can be installed under the screen of the mobile terminal. The fingerprint module can include a lens, a filter, and an optical fingerprint chip. When the user unlocks the screen, he can press the screen with his finger, and the screen will emit light, and the light generated can illuminate the fingers. Fingerprint, and the reflected light containing fingerprint information is irradiated to the filter through the lens. After being filtered by the filter, the light can be transmitted to the optical fingerprint chip. The optical fingerprint chip can generate a fingerprint image. When the fingerprint images reserved in the termi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00
CPCG06V40/1324G06V40/1318G06V40/1365
Inventor 林华鑫
Owner VIVO MOBILE COMM CO LTD
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