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Fingerprint identification terminal equipment

A technology of fingerprint identification and terminal equipment, which is applied in the field of communication, can solve problems such as the inability to realize fingerprint identification or accurate identification, and achieve the effect of ensuring effective transmission and reducing light leakage

Pending Publication Date: 2019-11-05
SHENZHEN LONGLI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, when the fingerprint identification unit 110 is placed under the backlight module, the infrared light carrying biometric fingerprint information cannot penetrate the LCD module, backlight module, and glass cover to reach the fingerprint identification unit 110, and fingerprint identification or accurate identification cannot be realized. identify

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] First, through Figure 2-5 , the fingerprint identification terminal device according to Embodiment 1 of the present invention will be described. A fingerprint identification terminal device, which comprises a glass cover plate 101, an LCD liquid crystal panel 102, a backlight module 103 and a fingerprint identification sensor 104 (such as figure 2 ), and the infrared transparent light-shielding layer 105 arranged between the glass cover 101 and the fingerprint recognition sensor 104; Figure 3A and Figure 3B , there is a non-display area 1011 and a fingerprint pressing area 1012 on the glass cover 101, wherein the glass cover 101 has a non-display area 1011 and a fingerprint pressing area 1012, and the non-display area 1011 and the fingerprint pressing area 1012 have a first Overlapping area 1013 (such as Figure 3C shown); the infrared transparent light-shielding layer 105 corresponds to the fingerprint identification sensor 104, thereby forming an infrared light...

Embodiment 2

[0061] Please refer to Figure 6 , is an exploded view of the fingerprint identification terminal device according to Embodiment 2 of the present invention. In the following, only the differences between Embodiment 2 and Embodiment 1 will be described, and the similarities will not be repeated here.

[0062]The reflection sheet 240, the light guide plate 230, the diffusion film 220, and the prism sheet 210 on the backlight module are not provided with gaps. The light guide plate 230 is provided with a hollow area, and the vertical projection of the second overlapping area 1014 on the light guide plate 230 is included in the range of the hollow area. This arrangement avoids infrared light from being scattered or refracted in a direction by the light guide plate 230, ensures the integrity of the infrared signal transmission channel from the glass cover 101 to the fingerprint recognition sensor 104 and reduces infrared signal loss or interference. The reflection sheet 240, the ...

Embodiment 3

[0065] Please refer to Figure 7 , is an exploded view of the fingerprint recognition terminal device according to Embodiment 3 of the present invention. In the following, only the differences between Embodiment 3 and Embodiment 2 will be described, and the similarities will not be repeated here.

[0066] The light guide plate 230 is not provided with a hollow area, but is provided with a transparent area 232, the transparent area 232 is transparent to infrared light and has a uniform structure, does not have a V-shaped sawtooth light guide unit or other light guide structures, and has no light guide function . The transparent region 232 is a single-layer polymer material, and can also be replaced by a multi-layer polymer material. The vertical projection of the second overlapping area 1014 on the light guide plate 230 is included in the scope of the transparent area 232. The infrared transparent light-shielding layer 105 is disposed above the transparent area 232 of the li...

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PUM

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Abstract

The invention discloses fingerprint identification terminal equipment, which comprises a glass cover plate, an LCD (Liquid Crystal Display) panel, a backlight module, a fingerprint identification sensor and an infrared transparent shading layer. The glass cover plate, the LCD panel, the backlight module and the fingerprint identification sensor are sequentially laminated from top to bottom. The glass cover plate is provided with a non-display area and a fingerprint pressing area, and the non-display area and the fingerprint pressing area are provided with a first overlapping area. The infraredtransparent shading layer corresponds to the fingerprint identification sensor, so that an infrared light channel is formed. A biological fingerprint infrared signal penetrates through the first overlapping region and the infrared transparent shading layer and is collected and identified by the fingerprint identification sensor. In-screen fingerprint recognition function recognition of the fingerprint recognition terminal equipment is achieved. Meanwhile, the display image quality of the fingerprint recognition terminal equipment is not affected.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a fingerprint recognition terminal device used for fingerprint recognition in an LCD screen. Background technique [0002] Fingerprint sensing and matching is a reliable and widely used technology. A common method of fingerprint identification involves scanning a sample fingerprint or an image thereof and storing the image and / or unique characteristics of the fingerprint image, the characteristics of the sample fingerprint can be compared with information from reference fingerprints already present in a database to determine the correct identification of the user , for example for verification purposes. In particular, in-display fingerprint recognition is currently becoming more and more popular due to its ease of operation and versatility, and its suitability for compact portable electronic devices. [0003] The fingerprint recognition display device in the LCD screen o...

Claims

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Application Information

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IPC IPC(8): G06K9/00G06K9/20G02F1/1333G02F1/1335
CPCG02F1/1333G02F1/133512G06V40/1324G06V10/145
Inventor 张小齐彭益庄世强刘政
Owner SHENZHEN LONGLI TECH CO LTD
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