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Fingerprint identification method and device and terminal device with fingerprint recognition function

A terminal device, fingerprint recognition technology, applied in the field of fingerprint recognition, can solve the problem of inability to realize fingerprint detection and so on

Pending Publication Date: 2019-04-02
SHENZHEN GOODIX TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Under-screen optical fingerprints have been mass-produced under organic light-emitting diode (OLED) screens, which use the light transmission characteristics of OLED screens and the light emitted by the screen itself to detect fingerprints after irradiating fingers; but Liquid Crystal Display (LCD) screen, because the steel plate and reflective film in the backlight module are opaque, and the diffusion film in the backlight module has an atomizing effect on the light, the brightness enhancement film has a directional constraint on the light. As a result, terminal devices with LCD screens cannot realize fingerprint detection

Method used

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  • Fingerprint identification method and device and terminal device with fingerprint recognition function
  • Fingerprint identification method and device and terminal device with fingerprint recognition function
  • Fingerprint identification method and device and terminal device with fingerprint recognition function

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Embodiment Construction

[0103] The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings.

[0104] As electronic devices enter the era of full screens, the fingerprint collection area on the front of electronic devices is squeezed by the full screen, so the under-display or under-screen fingerprint recognition technology has attracted more and more attention. The fingerprint recognition technology under the screen refers to installing the fingerprint recognition module (such as the fingerprint recognition module) under the display screen, so as to realize the fingerprint recognition operation in the display area of ​​the display screen. Area Set the fingerprint collection area.

[0105]Optical under-screen fingerprint recognition technology uses light returning from the top surface of the device's display assembly for fingerprint sensing and other sensing operations. The returned light carries information of an object (s...

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Abstract

Embodiments of the present application relate to a fingerprint identification method, a fingerprint identification device, and a terminal device. The terminal device includes a glass cover (1000) forproviding a touch interface; a liquid crystal panel (2000) located under the glass cover (1000); and a fingerprint identification light source (5000) located at the glass cover ( 1000) is used to emitlight and illuminate the finger to generate return light; a backlight module (3000) is located under the liquid crystal panel (2000), wherein a non-light guide plate structure (3100) includes a fingerprint detecting light transmission The area (3101) is configured to transmit the return light; a fingerprint identification module (4000) is located below the fingerprint detection transparent area (3101) for detecting the return of the transparent area (3101) according to the received fingerprint Light captures the fingerprint image. The fingerprint identification method, the fingerprint identification device, and the terminal device are capable of achieving fingerprint identification of LCD screens.

Description

technical field [0001] The present application relates to the field of fingerprint identification, in particular to a fingerprint identification method, a device and a terminal device with a fingerprint identification function. Background technique [0002] Under-screen optical fingerprints have been mass-produced under organic light-emitting diode (OLED) screens, which use the light transmission characteristics of OLED screens and the light emitted by the screen itself to detect fingerprints after irradiating fingers; but Liquid Crystal Display (LCD) screen, because the steel plate and reflective film in the backlight module are opaque, and the diffusion film in the backlight module has an atomizing effect on the light, the brightness enhancement film has a directional constraint on the light. As a result, the terminal equipment with LCD screen cannot realize fingerprint detection. Contents of the invention [0003] The present application provides a fingerprint recognit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06F3/041
CPCG06F3/0416G06V40/1365
Inventor 谢浩
Owner SHENZHEN GOODIX TECH CO LTD
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