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Liquid crystal terminal device, fingerprint image collection method and fingerprint collector

A fingerprint collector and terminal equipment technology, which is used in printing image acquisition, acquisition/organization of fingerprints/palmprints, instruments, etc., can solve the problem of insufficient anti-static and anti-corrosion capabilities, large size, and difficulty in meeting the thickness and size of mobile devices. problems, to achieve the effect of convenient shape and software interface design, meet delicate requirements, and reduce thickness

Inactive Publication Date: 2014-07-23
王曙光 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The size of traditional optical fingerprint collection equipment is large, and it is difficult to meet the requirements of mobile devices for thickness and size; and the semiconductor chip fingerprint collection method has shortcomings such as antistatic and anti-corrosion capabilities.

Method used

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  • Liquid crystal terminal device, fingerprint image collection method and fingerprint collector
  • Liquid crystal terminal device, fingerprint image collection method and fingerprint collector
  • Liquid crystal terminal device, fingerprint image collection method and fingerprint collector

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0076] Such as figure 1 As shown, the fingerprint collector includes a panel 1 with at least one imaging hole 2, and photoelectric conversion sensors 3 are arranged at intervals corresponding to the imaging holes. As shown in the figure, using the principle of pinhole imaging, the fingerprint can be imaged on the photoelectric conversion sensor through the imaging hole, thereby completing the collection of the fingerprint corresponding to the imaging hole. Wherein, the photoelectric conversion sensor can adopt photosensitive elements such as CMOS or CCD to collect fingerprints. figure 1 The basic principles on which the invention is based are shown.

Embodiment 2

[0078] This embodiment is based on Embodiment 1: a transparent panel is added.

[0079] Such as figure 2 As shown, for some specific devices, a transparent panel 4 can be used to provide a touch surface for fingers, so as to facilitate fingerprint collection at a fixed resolution.

Embodiment 3

[0081] Such as image 3 As shown, the fingerprint collector includes a box body 13 , the imaging hole is set on the front side panel 14 of the box body, and the photoelectric conversion sensor 3 is set at the bottom of the box body corresponding to the imaging hole 2 .

[0082] The above-mentioned fingerprint collector can be applied to various terminal devices. In application, the fingerprint collector can be used as an independent module to collect fingerprints. In the above-mentioned embodiments, the aperture of the imaging hole can be 0.001-1mm; considering factors such as the best imaging effect and shorter imaging distance and processing, the aperture of the imaging hole should be selected at 0.01-0.2 Between mm, such as 0.1mm is better.

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Abstract

The invention discloses a fingerprint collector, a liquid crystal terminal device and a fingerprint image collection method. On the basis of the principle of pin-hole imaging, an ultra-thin fingerprint collector of any size can be formed and further combined with a liquid crystal display screen to achieve the function of fingerprint collection. The liquid crystal terminal device comprises a liquid crystal display assembly which at least comprises a liquid crystal plate and a backlight module. The backlight module at least comprises a reflective piece and a back plate, one or more imaging holes are formed in the reflective piece and / or the back plate, and photovoltaic conversion sensors are arranged on the positions corresponding to the imaging holes. Structural improvement is carried out on the liquid crystal display screen according to the principle of pin-hole imaging so that the liquid crystal display screen can be used for fingerprint collection and can support the terminal device to finish screen unlocking, account number verification and other operations needing personal identify identification through fingerprint recognition.

Description

technical field [0001] The invention relates to a fingerprint collector, a liquid crystal terminal device and a fingerprint image collection method for a liquid crystal panel. Background technique [0002] At present, there are mainly two methods for collecting fingerprint images. One is based on semiconductor chips to directly collect fingerprints; the other is an optical collection method based on the principle of total reflection. Both approaches have their pros and cons. The size of traditional optical fingerprint collection equipment is large, and it is difficult to meet the requirements of mobile devices for thickness and size; while the semiconductor chip fingerprint collection method has shortcomings such as insufficient antistatic and anti-corrosion capabilities. Contents of the invention [0003] In view of the above problems, the object of the present invention is to provide a fingerprint collector, a liquid crystal terminal device and a fingerprint collection...

Claims

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Application Information

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IPC IPC(8): G06K9/00G06K9/20
CPCG06V40/1318
Inventor 王曙光杨建峰
Owner 王曙光
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