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Fingerprint identification module, preparation method thereof and display device

A fingerprint recognition module and display device technology, applied in character and pattern recognition, acquisition/organization of fingerprints/palmprints, instruments, etc., can solve the problems of multiple structures and large thicknesses of liquid crystal display devices

Inactive Publication Date: 2016-03-09
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] When the fingerprint recognition module is integrated into the liquid crystal display device so that the liquid crystal display device has the function of full-screen fingerprint recognition, since the fingerprint recognition module has many structural layers, and the liquid crystal display device itself has many structural layers for display, As a result, liquid crystal display devices with full-screen fingerprint recognition functions have more structures and larger thicknesses

Method used

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  • Fingerprint identification module, preparation method thereof and display device
  • Fingerprint identification module, preparation method thereof and display device
  • Fingerprint identification module, preparation method thereof and display device

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Embodiment Construction

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0032] It should be noted that, unless otherwise defined, all terms (including technical and scientific terms) used in the embodiments of the present invention have the same meaning as commonly understood by those of ordinary skill in the art to which the present invention belongs. It should also be understood that terms such as those defined in common dictionaries should be interpreted as having meanings consistent with their meanings in the context of the rel...

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Abstract

The embodiment of the invention provides a fingerprint identification module, a preparation method thereof and a display device, which relates to the technical field of display. One electrode layer in the fingerprint identification module can serve as a polarizer, and when the electrode layer is applied to a display device for full-screen fingerprint identification, the overall thickness of the display device can be reduced. The fingerprint identification module comprises a first electrode layer, a second electrode layer and a transparent insulated layer, wherein the first electrode layer and the second electrode layer are arranged oppositely; the transparent insulated layer is located between the first electrode layer and the second electrode layer; the first electrode layer comprises multiple first electrode wires at intervals; the second electrode layer comprises multiple second electrode wires at intervals; the first electrode wires and the second electrode wires are arranged in a crossing mode; the first electrode layer is made of a transparent conductive material; and the second electrode layer is a wire grating polarizer. The invention provides the fingerprint identification module and the method of preparing the display device comprising the fingerprint identification module.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a fingerprint identification module, a preparation method thereof, and a display device. Background technique [0002] Fingerprints are lines formed by linearly arranged protrusions (peaks) and depressions (valleys) on the skin of the finger. Due to the lifelong invariance, uniqueness and convenience of fingerprints, fingerprints have become synonymous with biometric identification and are widely used in identity information authentication and identification fields such as security facilities and attendance systems. [0003] Fingerprint identification mainly adopts capacitive sensing technology. The module used for identification includes two layers of electrodes arranged opposite each other. Each layer of electrodes is composed of a plurality of electrode lines arranged at intervals. Form a sensing capacitor, each sensing capacitor is equivalent to a detection pixel. When perf...

Claims

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Application Information

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IPC IPC(8): G06K9/00G02F1/1343G02F1/1335G06V30/144
CPCG02F1/133528G02F1/134309G02F1/13439G02F1/133548G06V40/1318G02F1/1335G02F1/1343G02F1/13338G06F3/0412G06F2203/04103G06V40/1306G06V40/1365G02F1/134336
Inventor 李颖祎
Owner BOE TECH GRP CO LTD
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