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Optical fingerprint sensors

A sensor, fingerprint technology, applied in optics, optical components, acquisition/organization of fingerprints/palmprints, etc., can solve problems such as reducing the recognition rate and security risks

Pending Publication Date: 2020-12-25
VISERA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, using fake photos of fingerprints, rather than fingerprints from real people, can also pass identity checks, which will reduce the recognition rate and pose a security risk

Method used

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  • Optical fingerprint sensors
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Examples

Experimental program
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Embodiment Construction

[0058] see figure 1 , according to an embodiment of the present invention, an optical fingerprint sensor (optical fingerprint sensor) 10 is provided. figure 1 is a schematic cross-sectional view of the optical fingerprint sensor 10 .

[0059] exist figure 1Among them, the optical fingerprint sensor 10 includes a substrate 12 , a plurality of photoelectric conversion units 14 , a light shielding layer 16 , and an optical material layer 18 . The photoelectric conversion units 14, for example, a first photoelectric conversion unit 14a, a second photoelectric conversion unit 14b, a third photoelectric conversion unit 14c, a fourth photoelectric conversion unit 14d, a fifth photoelectric conversion unit 14e, and a sixth photoelectric conversion unit 14f, set in the substrate 12 . The light shielding layer 16 is disposed on the substrate 12 . The optical material layer 18 is in contact with the light shielding layer 16 , for example, the optical material layer 18 is in physic...

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PUM

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Abstract

An optical fingerprint sensor is provided. The optical fingerprint sensor includes a substrate, a light-shielding layer and an optical material layer. The light-shielding layer is disposed on the substrate. The optical material layer is in contact with the light-shielding layer. The optical material layer includes a non-filtering portion and a filtering portion.

Description

technical field [0001] The invention relates to an optical fingerprint sensor, in particular to an optical fingerprint sensor capable of identifying living body signals. Background technique [0002] In a traditional optical fingerprint sensor, after the sensor takes a photo of the fingerprint, it compares the optical image to determine whether the fingerprint is correct. However, using fake photos of fingerprints instead of fingerprints from real people can pass identity checks, which reduces the recognition rate and poses a security risk. [0003] Therefore, it is highly anticipated to develop an optical fingerprint sensor with the function of living body recognition. Contents of the invention [0004] According to an embodiment of the present invention, an optical fingerprint sensor (optical fingerprint sensor) is provided. The optical fingerprint sensor includes: a substrate, a light-shielding layer, and an optical material layer. The light shielding layer is dispos...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/20
CPCG06V40/1324G06V10/145G06V10/143G02B5/201G02B5/208G02B2207/123G06V40/1394G06V40/1318G02B5/20
Inventor 林和泰陈信宏
Owner VISERA TECH CO LTD