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Fingerprint identification module and electronic equipment

A fingerprint recognition module, electronic equipment technology, applied in branch equipment, equipment with sensors, character and pattern recognition, etc., can solve problems affecting fingerprint image clarity, optical signal interference, etc.

Pending Publication Date: 2020-10-27
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the external light source is irradiated on the screen, more reflected light may be generated. The reflected light does not reach the finger and does not carry fingerprint information. The signal causes interference, which affects the clarity of the fingerprint image

Method used

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  • Fingerprint identification module and electronic equipment
  • Fingerprint identification module and electronic equipment
  • Fingerprint identification module and electronic equipment

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Embodiment Construction

[0081] The technical solution in this application will be described below with reference to the accompanying drawings.

[0082] In order to facilitate understanding of the embodiments of the present application, the following descriptions are first made.

[0083] First, for ease of understanding, the fingerprint identification module and electronic equipment provided by this application are described in detail below in conjunction with multiple drawings. However, these drawings are only examples for ease of understanding, and the relative distances between the components shown in the figures, the shapes and sizes of the components are not necessarily the same as the actual objects or scaled in proportion.

[0084] Second, in the embodiment of the present application, there are many dimensional designs involved, and these designs are all based on considerations in an ideal state. The size thus designed can be called the basic size. In contrast, the size after processing and a...

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PUM

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Abstract

The invention provides a fingerprint identification module and electronic equipment. The fingerprint identification module is arranged below a screen assembly of the electronic equipment and comprisesan LED, an image sensor and a shading piece; the light-emitting surface of the LED faces the screen assembly and is used for emitting a light signal; the photosensitive surface of the image sensor faces the screen assembly and is used for receiving an optical signal, and the optical signal received by the image sensor comprises a fingerprint optical signal which is transmitted to a finger by theLED and returned to generate a fingerprint image; part or all of the shading piece is located between the LED and the image sensor and used for blocking part of signal light emitted by the LED. An optical signal emitted by the LED reaches the image sensor after being reflected by the screen assembly, and interferes with fingerprint information. According to the invention, the shading piece is usedfor blocking a part of optical signals with a large emergent angle, and the optical signals reflected by the screen assembly can be reduced, thereby reducing the interference on fingerprint information, and facilitating the obtaining of a fingerprint image with higher definition.

Description

technical field [0001] The present application relates to the field of fingerprint identification, and more specifically, to a fingerprint identification module and electronic equipment. Background technique [0002] With the improvement of mobile phone screen-to-body ratio and integrated rear shell design, people's demand for fingerprint recognition under the screen is becoming stronger and stronger. Optical fingerprint recognition under the screen is a kind of fingerprint recognition technology under the screen. Its working principle is: when a finger is placed on the terminal screen, the terminal can emit light signals to the finger. After the light signal is reflected by the fingerprint of the finger, the reflected light forms a fingerprint image on the sensor under the screen. [0003] At present, there is a known solution to realize fingerprint recognition under the optical screen by providing an external light source with strong external penetrating power under the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00H04M1/02
CPCH04M1/026G06V40/1318H04M1/0266H04M2250/12
Inventor 林娇彭旭万秀娟
Owner HUAWEI TECH CO LTD