Electronic device

An electronic device and fingerprint recognition technology, which is applied in the field of communication, can solve problems such as the inability to realize fingerprint recognition or accurate recognition, and achieve the effect of reducing light leakage

Pending Publication Date: 2019-11-05
SHENZHEN LONGLI TECH CO LTD
View PDF5 Cites 1 Cited by
  • 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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Electronic device
  • Electronic device
  • Electronic device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] First, through Figure 2-5 , with regard to the electronic device of Embodiment 1 of the present invention, the glass cover plate 101, the LCD liquid crystal panel 102, the backlight module 103 and the fingerprint recognition sensor 104 which are stacked sequentially from top to bottom, and the backlight The infrared transparent shading layer 105 on the module 103; wherein, the glass cover plate 101 has a non-display area 1011, and the non-display area 1011 includes a fingerprint identification area 1012 (such as image 3 As shown), the fingerprint recognition area 1012 corresponds to the infrared transparent light-shielding layer 105 and the fingerprint recognition sensor 104. The infrared transparent light-shielding layer 105 can transmit infrared light but block visible light, so that the biological fingerprint infrared signal pass through the fingerprint recognition area 1012 and the infrared transparent light-shielding layer 105 , and be collected by the fingerprin...

Embodiment 2

[0056] Please refer to Image 6 , is an exploded view of the electronic device according to Embodiment 2 of the present invention. Only the differences between Embodiment 2 and Embodiment 1 will be described below, and the similarities will not be repeated here.

[0057] The reflection sheet 240 , the light guide plate 230 , the diffusion film 220 , and the prism sheet 210 on the backlight module 103 are not provided with gaps. The light guide plate 230 is provided with a hollow area, and the vertical projection of the first overlapping area 1013 on the light guide plate 230 is included in the range of the hollow area. This arrangement prevents the infrared light from being scattered or refracted by the light guide plate 230 , and ensures the integrity of the infrared signal transmission channel from the glass cover 101 to the fingerprint recognition sensor 104 . The reflective sheet 240 , the diffuser film 220 , and the prism sheet 210 on the backlight module 103 are also p...

Embodiment 3

[0060] Please refer to Figure 7 , is an exploded view of the electronic device according to Embodiment 3 of the present invention. Only the differences between Embodiment 3 and Embodiment 2 will be described below, and the similarities will not be repeated here.

[0061]The light guide plate 230 is not provided with a hollow area, but is provided with a transparent non-light guide area 232, the transparent non-light guide area 232 is transparent to infrared light and has a uniform structure, and does not have a V-shaped sawtooth light guide unit or other light guide structures. . The transparent non-light-guiding region 232 is a single-layer polymer material, and can also be replaced by multi-layer polymer materials. The vertical projection of the first overlapping area 1013 on the light guide plate 230 is included in the range of the transparent non-light guide area 232 . The infrared transparent light-shielding layer 105 is disposed on the transparent non-light-guiding a...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses electronic equipment. The electronic equipment comprises a glass cover plate, an LCD panel, a backlight module and a fingerprint identification sensor which are sequentially laminated from top to bottom. The glass cover plate is provided with a non-display area and a fingerprint identification area. The non-display area and the fingerprint identification area are partiallyoverlapped. An infrared transparent shading layer is arranged in the area, corresponding to the non-display area, of the backlight module. The infrared light can penetrate through the infrared transparent shading layer, but the visible light is shielded by the infrared transparent shading layer. Therefore, the fingerprint recognition sensor collects biological fingerprint infrared signals penetrating through the glass cover plate and the backlight module and conducts fingerprint recognition. In-screen fingerprint recognition function recognition of the electronic equipment is achieved. Meanwhile, the display image quality of the electronic equipment is not affected.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to an electronic device 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 obviously has a larger range...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G06K9/00G02F1/1333G02F1/13357
CPCG02F1/13338G02F1/1336G06V40/1318
Inventor 张小齐曾晓虎庄世强刘政
Owner SHENZHEN LONGLI TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap