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Under-screen optical fingerprint device with three-dimensional fingerprint anti-counterfeiting sensing function and handheld device

A fingerprint device and handheld device technology, which is applied in the direction of acquiring/arranging fingerprints/palmprints, detecting living finger shapes, instruments, etc., and can solve the problems of being unable to distinguish real fingers and sampling fake fingers

Active Publication Date: 2019-04-02
SHENZHEN GOODIX TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In the past, the anti-counterfeiting of fake fingerprints can be designed through capacitive circuit sensing to distinguish real fingers and sample fake fingers, but currently adopts optical under-screen fingerprint sensing technology The full-screen mobile phone uses optical reflection to capture fingerprint images for fingerprint feature identification, so it is impossible to distinguish between real fingers and sampled fake fingers through electrical characteristics

Method used

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  • Under-screen optical fingerprint device with three-dimensional fingerprint anti-counterfeiting sensing function and handheld device
  • Under-screen optical fingerprint device with three-dimensional fingerprint anti-counterfeiting sensing function and handheld device
  • Under-screen optical fingerprint device with three-dimensional fingerprint anti-counterfeiting sensing function and handheld device

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Embodiment Construction

[0035] Certain terms are used throughout the specification and preceding claims to refer to particular components. Those skilled in the art should understand that manufacturers may use different terms to refer to the same component. This specification and the previous claims do not use the difference in name as the way to distinguish components, but the difference in function of the components as the basis for distinction. "Include" mentioned throughout the description and the preceding claims is an open-ended term, so it should be interpreted as "including but not limited to".

[0036] The display screen with three-dimensional fingerprint anti-counterfeiting sensing function disclosed in this application can obtain three-dimensional information of finger fingerprints, realize the distinction between real and fake fingers, and effectively improve the anti-counterfeiting security of optical under-screen fingerprints. The following is combined with multiple embodiments and figur...

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Abstract

The invention discloses an under-screen optical fingerprint device with a three-dimensional fingerprint anti-counterfeiting sensing function for sensing a fingerprint of a specific object. The under-screen optical fingerprint device comprises: a structured light output device for projecting structured light to a specific object; and an optical sensing device including a first optical input devicefor receiving structured light reflected by the specific object to obtain third dimensional information of a fingerprint of the specific object.

Description

technical field [0001] The invention relates to an under-screen optical fingerprint device with a fingerprint anti-counterfeiting sensing function, in particular to an under-screen optical fingerprint device and a handheld device with a three-dimensional fingerprint anti-counterfeiting sensing function. Background technique [0002] In the past, fingerprint capture was mostly based on capacitive sensing fingerprints. In recent years, full-screen mobile phones have become a trend, and optical under-screen fingerprints are currently one of the mainstream methods. [0003] In the past, the anti-counterfeiting of fake fingerprints can be designed through capacitive circuit sensing to distinguish real fingers and sample fake fingers. However, the current full-screen mobile phone adopts optical under-screen fingerprint sensing technology, which uses optical reflection to capture fingerprint images for fingerprint characteristics. Therefore, it is impossible to distinguish between ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00H04M1/02
CPCH04M1/026G06V40/1324G06V40/1394G06V40/1318
Inventor 李宗德王浩任罗介暐许志隆张继宗黄泳霖
Owner SHENZHEN GOODIX TECH CO LTD