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Light guide plate structure for fingerprint collection light source

A technology of fingerprint collection and light guide plate, which is applied in printing image collection, acquisition/organization of fingerprints/palmprints, instruments, etc. It can solve the problems of no light source circuit design scheme, reduce volume, improve recognition accuracy, and evenly distribute light Effect

Active Publication Date: 2019-06-25
苏州科阳半导体有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] For the design scheme of the light source circuit for this optical fingerprint recognition, there is no relevant design scheme of the light source circuit to follow in the biological field.

Method used

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  • Light guide plate structure for fingerprint collection light source
  • Light guide plate structure for fingerprint collection light source

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1: A light guide plate structure for fingerprint collection light source, the light guide plate structure is installed on the upper surface of the plastic bracket 1, the plastic bracket 1 and several LED light-emitting diodes 2, the central area of ​​the plastic bracket 1 is The hollow area 3 includes a glass sheet 16, the upper surface edge area of ​​the glass sheet 16 is sequentially provided with a metal layer 17 and an ink layer 18 from bottom to top, and the lower surface edge area of ​​the glass sheet 16 is sequentially provided with Metal layer 17, ink layer 18, described LED light-emitting diode 2 is positioned at the periphery of glass sheet 16 and is close to glass sheet 16 end faces, and the width of described metal layer 17 is greater than 0.3mm, and the width of ink layer 18 is greater than 0.3mm, and the width of ink layer The width is not smaller than the metal layer.

[0020] The above-mentioned glass sheet 16 is rectangular in shape. The abo...

Embodiment 2

[0023] Embodiment 2: A light guide plate structure for fingerprint collection light source, the light guide plate structure is installed on the upper surface of the plastic support 1, the plastic support 1 and several LED light emitting diodes 2, the central area of ​​the plastic support 1 is The hollow area 3 includes a glass sheet 16, the upper surface edge area of ​​the glass sheet 16 is sequentially provided with a metal layer 17 and an ink layer 18 from bottom to top, and the lower surface edge area of ​​the glass sheet 16 is sequentially provided with Metal layer 17, ink layer 18, described LED light-emitting diode 2 is positioned at the periphery of glass sheet 16 and is close to glass sheet 16 end faces, and the width of described metal layer 17 is greater than 0.3mm, and the width of ink layer 18 is greater than 0.3mm, and the width of ink layer The width is not smaller than the metal layer.

[0024] The above-mentioned glass sheet 16 is square in shape. The above-me...

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PUM

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Abstract

The invention discloses a light guide plate structure used as a fingerprint collection light source. The light guide plate structure is installed on the upper surface of a plastic support, the plastic support and several LED light-emitting diodes, and the central area of ​​the plastic support is a hollow area, including a glass sheet , the edge region of the upper surface of the glass sheet is sequentially provided with a metal layer and an ink layer from bottom to top, and the edge region of the lower surface of the glass sheet is provided with a metal layer and an ink layer sequentially from top to bottom, and the LED light-emitting diode is located at The periphery of the glass sheet is close to the end surface of the glass sheet, the width of the metal layer is greater than 0.3 mm, the width of the ink layer is greater than 0.3 mm, and the width of the ink layer is not smaller than the metal layer. The invention is beneficial to guide the light source of the LED lamp, so that the light rays are reflected and refracted on the upper and lower surfaces for multiple times, thereby further improving the accuracy of fingerprint identification.

Description

technical field [0001] The invention relates to a light guide plate structure used for a fingerprint collection light source, and belongs to the technical field of semiconductor packaging. Background technique [0002] With the development of mobile Internet technology, the security of mobile Internet terminal user identification information has become increasingly prominent, and the economic losses of users due to identity information theft and counterfeiting are often reported in the newspapers. The traditional password-based identification scheme has problems such as low efficiency, time-consuming, low security, and cumbersome operation, which has gradually become a shortcoming problem in the development and popularization of mobile Internet technology. Fingerprint recognition technology as the user's unique biometric feature can effectively solve the above problems. [0003] For the design scheme of the light source circuit for this optical fingerprint recognition, ther...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00
CPCG06V40/1318
Inventor 吕军刘辰黄双武沙长青
Owner 苏州科阳半导体有限公司