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Finterprint identification device and electronic device

A fingerprint identification and fingerprint image technology, which is applied in character and pattern recognition, acquisition/organization of fingerprints/palmprints, detection of live finger shapes, etc., can solve problems such as hidden dangers of fingerprint application security

Pending Publication Date: 2020-10-20
SHENZHEN GOODIX TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The application of optical fingerprint identification devices brings users a safe and convenient user experience, but forged fingerprints such as fingerprint molds and printed fingerprint images made of artificial materials (such as silica gel, white glue, etc.) are a security issue in fingerprint applications. Hidden danger

Method used

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  • Finterprint identification device and electronic device
  • Finterprint identification device and electronic device
  • Finterprint identification device and electronic device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0097] In this Example 1, as Figure 4 and Figure 5 As shown, the fingerprint recognition device may include a microlens unit array 310 , at least one light blocking layer 320 , a pixel unit array 330 and a filter unit array 340 .

[0098] Wherein, each microlens unit group in the microlens unit array 310 includes 4 microlens units, each microlens unit includes a microlens 311, and each microlens in the four microlens units is used for The optical signals in the four directions are transmitted to the corresponding pixel units, and the filter unit corresponding to each microlens unit is located on the optical path in the first direction, that is, the filter unit corresponding to each microlens unit is used for For the optical signal of a specific wavelength band among the optical signals transmitted in the first direction, the specific wavelength band is a wavelength band that can be transmitted by the filter unit.

[0099] As an example, each microlens is disposed directly ab...

Embodiment 2

[0120] Optionally, as in Figure 7 As shown, the microlens unit group is an array composed of 2*2 microlens units, each microlens unit includes 2*2 microlenses, and each filter unit group includes sixteen filter units, each filter The light unit corresponds to a microlens and a pixel unit. That is, the four microlenses in each microlens unit correspond to four filter units of the same color, for example, Figure 7 The 2*2 microlenses in the upper left corner of the center are a microlens unit, and the corresponding filter units are 4 filter units of the same color, for example, a red light filter unit; and for example, Figure 7 The 2*2 microlenses in the lower right corner are a microlens unit, and the corresponding filter units are 4 filter units of the same color, for example, a blue light filter unit.

[0121] It should be noted that the difference between this embodiment 2 and embodiment 1 is that one microlens unit corresponds to the number of filter units of the same ...

Embodiment 3

[0125] like Figure 8 As shown, the fingerprint recognition device may include a microlens unit array 310 , at least one light blocking layer 320 , a pixel unit array 330 and a filter unit array 340 .

[0126] The at least one light-shielding layer 320 includes a bottom light-shielding layer 321 and a top light-shielding layer 322, wherein the bottom light-shielding layer 321 and the top light-shielding layer 322 are respectively provided with each micro lens in the plurality of microlenses. A set of small holes corresponding to a lens.

[0127] The pixel units in the pixel unit array 330 arranged under the microlens are used to receive the light in the four directions converged by the microlens and transmitted through the small holes in the bottom light-blocking layer and the top light-blocking layer. light signal.

[0128] Specifically, the microlens unit array 310 includes an array of 3*3 microlens units, each microlens unit includes a microlens, the pixel unit group is a...

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PUM

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Abstract

A finterprint identification device and an electronic device are provided. The finterprint identification device comprises: a micro lens unit array; at least one light shielding layer; and a pixel unit array; an optical filter unit array, which is arranged between the micro lens unit array and the pixel unit array; wherein each optical filter unit set comprises a plurality of optical filter unitswith multiple colors, each optical filter unit of the optical filter units is used to allow the passing of optical signals of one color in a first direction of multiple directions; the pixel unit array comprises a pixel unit set corresponding to the optical filter unit set; multiple pixel units of the pixel unit set are used to receive the optical signals of multiple colors through the optical filter units; and the optical signals of multiple colors are used to detect whether a finger is a real finger or not. The fingerprint identification device can improve the safety of fingerprint identification on the premise that the effect of fingerprint identification is not influenced.

Description

technical field [0001] The present application relates to the technical field of optical fingerprints, and more specifically, to a fingerprint identification device and electronic equipment. Background technique [0002] The application of optical fingerprint identification devices brings users a safe and convenient user experience, but forged fingerprints such as fingerprint molds and printed fingerprint images made of artificial materials (such as silica gel, white glue, etc.) are a security issue in fingerprint applications. Hidden danger. Therefore, how to identify the authenticity of fingerprints to improve the security of fingerprint identification is an urgent problem to be solved. Contents of the invention [0003] Embodiments of the present application provide a fingerprint identification device and electronic equipment, which can identify the authenticity of fingerprints, thereby improving the security of fingerprint identification. [0004] In a first aspect, ...

Claims

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Application Information

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IPC IPC(8): G06K9/00G06K9/62G06N3/04
CPCG06V40/1324G06V40/1388G06N3/045G06F18/214
Inventor 程祥张玮李顺展
Owner SHENZHEN GOODIX TECH CO LTD
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