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Fingerprint identification method, fingerprint identification device, and display module

A fingerprint identification and display module technology, applied in the field of fingerprint identification, can solve the problems of increased process, complex optical path design, high process requirements, etc., and achieve the effect of improving the accuracy of fingerprint identification and optimizing the effect

Active Publication Date: 2019-02-19
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present invention is to provide a fingerprint identification method, a fingerprint identification device and a display module to solve the problem that the existing fingerprint identification method involves complex optical path design, and needs to increase the process and has high requirements for the process.

Method used

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  • Fingerprint identification method, fingerprint identification device, and display module
  • Fingerprint identification method, fingerprint identification device, and display module
  • Fingerprint identification method, fingerprint identification device, and display module

Examples

Experimental program
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specific Embodiment approach

[0089] According to a specific implementation manner, the correction unit may include:

[0090] An acquisition module, configured to acquire a pre-stored standard fingerprint image;

[0091] A reference fingerprint image acquisition module, configured to control the sub-pixels in the target pixel area to emit light when the finger covers the target pixel area, and detect the light signal received by each fingerprint recognition sensor corresponding to the target pixel area , confirming that the optical signal is a reference optical signal, and obtaining a reference fingerprint image according to the reference optical signal;

[0092]A correction module, configured to sequentially close all sub-pixels in the target pixel area after the reference fingerprint image is obtained by the reference fingerprint image acquisition module when the finger covers the target pixel area, When each sub-pixel in the area is turned off, detect the actual optical signal received by each fingerpr...

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PUM

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Abstract

The present invention provides a fingerprint identification method, a fingerprint identification device and a display module. The fingerprint identification method is applied to a display module, thedisplay module comprises an array substrate and a plurality of rows and columns of fingerprint identification sensors arranged on the array substrate corresponding to a display area, the fingerprint identification sensors are used for receiving an optical signal; The fingerprint identification method comprises the following steps: when performing fingerprint identification, determining a target pixel area covered by a finger; detecting an optical signal received by a fingerprint identification sensor corresponding to the target pixel area when a finger covers the target pixel area; correctingthe optical signal to obtain a corrected optical signal; performing the fingerprint identification according to the corrected optical signal. The invention effectively improves the fingerprint identification precision and optimizes the fingerprint identification effect on the premise that the complex optical path and the process are not involved.

Description

technical field [0001] The invention relates to the technical field of fingerprint identification, in particular to a fingerprint identification method, a fingerprint identification device and a display module. Background technique [0002] Such as figure 1 As shown, the display module includes an array substrate 120, and a plurality of rows and columns of fingerprint identification sensors 110 located on the first bottom surface of the array substrate 120 corresponding to the display area (in figure 1 Only one of the fingerprint recognition sensor 110 is shown in the figure as an example), and a plurality of sub-pixels arranged on the second bottom surface of the array substrate 120, each sub-pixel includes an anode, a light-emitting material layer 130 and an anode arranged in sequence. a cathode 140, the anode is disposed on the second bottom surface of the array substrate 120 ( figure 1 The anode is not shown separately), the plurality of sub-pixels share one cathode 14...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/32
CPCG06F21/32
Inventor 刘明左岳平张帅陈善韬孟秋华田宏伟
Owner BOE TECH GRP CO LTD
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