Line recognition component, preparation method thereof and display device

A texture and component technology, applied in the field of texture recognition components and preparation methods thereof, and display devices, can solve problems such as the influence of fingerprint recognition accuracy

Active Publication Date: 2019-11-26
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, the inventor found that even if the through-hole filter method and the lens plus aperture method are adopted, the accuracy of fingerprint recognition is still affected by the interference light

Method used

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  • Line recognition component, preparation method thereof and display device
  • Line recognition component, preparation method thereof and display device
  • Line recognition component, preparation method thereof and display device

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Embodiment Construction

[0042] 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.

[0043] After many experiments, the inventors found that if Figure 2a As shown, the ambient light irradiates the finger, excites the biological tissues in the finger through the finger, and finally hits the photosensitive sensor 10. This part of the light is the interference light mentioned in the background art. Such as Figure 2b As shown, according to the test results of the spectrometer, the inventor found that the main wavelength band of the light passin...

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Abstract

The embodiment of the invention provides a line recognition component, a preparation method thereof and a display device, and relates to the technical field of display, capable of further improving the accuracy of fingerprint recognition. The line recognition component comprises a photosensitive sensing layer and a line contact surface, and further comprises a filtering film layer arranged on theside, close to the line contact surface, of the photosensitive sensing layer, wherein the filtering film layer is used for filtering visible light larger than or equal to lambda, and lambda is greaterthan or equal to 600 nm.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a texture recognition component, a preparation method thereof, and a display device. Background technique [0002] Fingerprint recognition refers to identification by comparing the detailed feature points of different fingerprints. There are three main ways to realize fingerprint recognition: capacitive, optical and ultrasonic. [0003] Among them, in the process of using optical fingerprint recognition, since the light reflected by the finger will scatter, if the distance between the finger and the photosensitive sensor is large, the image acquired by the photosensitive sensor will be blurred, which will lead to The fingerprint information recognized by the light received by the sensor is inaccurate. [0004] Such as figure 1 As shown, the prior art adopts the through-hole filter method and the lens-plus-stop method to obtain more accurate fingerprint information. [0005] H...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00
CPCG06V40/1318H01L27/14621H10K59/65G02F1/13318H01L25/18H01L27/14612H01L27/14685
Inventor 海晓泉王海生王雷
Owner BOE TECH GRP CO LTD
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