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Fingerprint detecting device and terminal device having fingerprint recognition function

A technology of fingerprint identification and terminal equipment, which is applied in the field of biometric identification, and can solve problems such as the inability to apply fingerprints under the optical screen, the inability to realize fingerprint image acquisition and fingerprint identification, and the inability to form an optical circuit for fingerprint detection.

Active 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

However, the liquid crystal display (Liquid Crystal Display, LCD) screen relies on the backlight module to emit light, and can only be fully lit, and cannot form an effective optical circuit for fingerprint detection, so fingerprint image acquisition and fingerprint recognition cannot be realized, and it cannot be applied to optical technology. Under-screen fingerprint technology

Method used

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  • Fingerprint detecting device and terminal device having fingerprint recognition function
  • Fingerprint detecting device and terminal device having fingerprint recognition function
  • Fingerprint detecting device and terminal device having fingerprint recognition function

Examples

Experimental program
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Effect test

Embodiment Construction

[0062] The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings.

[0063] The current under-screen fingerprint technology is basically applied to self-illuminating mobile phone screens such as OLED / AMOLED. specifically, figure 1 Shows a side view of a mobile phone with a self-illuminating screen such as OLED / AMOLED, where, figure 1 The top of the phone is on the left and the bottom is on the right. Such as figure 1 As shown, the OLED screen includes a display unit. The display unit is a light-emitting pixel that can emit light by itself. The light-emitting pixel can be used as a light source. When a finger touches the glass cover on the surface, the light emitted by the light-emitting pixel shines on the finger and is reflected by the finger. Through the mobile phone screen and special optical lens, it is received by the sensor under the screen through the filter. For example, the sensor can be...

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PUM

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Abstract

Embodiments of the present application relate to a fingerprint detecting device and a terminal device having a fingerprint recognition function. The terminal device includes: a glass cover plate (110)for providing a touch interface for fingerprint recognition of a finger; a liquid crystal panel (120) located under the glass cover plate (110) for displaying an image; a backlight module (130) located under the liquid crystal panel (120) for providing a light source for the liquid crystal panel (120) to display the image; and a light emitting component (140) located below the glass cover (110) and unobstructed with the liquid crystal panel (120) and used for emitting light and illuminating the finger to produce return light for the terminal device to perform the fingerprint recognition on the finger. The fingerprint detecting device and the terminal device having the fingerprint recognition function of the embodiments of the present application can implement fingerprint recognition undera LCD screen.

Description

technical field [0001] The present application relates to the field of biometric identification, in particular to a fingerprint detection device and a terminal device with a fingerprint identification function. Background technique [0002] In recent years, smartphones have entered the era of full screens, and the screen-to-body ratio of mobile phones has become larger and larger. The fingerprint recognition technology under the screen has become a trend, and the fingerprint technology under the optical screen is the first to enter commercial use. Mainstream mobile phone manufacturers in China have released optical fingerprint scanners under the screen. The new models with under-display fingerprint technology of international brand manufacturers are also under intensive research and development. [0003] The current optical screen fingerprint technology is basically applied to self-luminous mobile phone screens such as organic light-emitting diodes (Organic Light-Emitting Di...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06V10/141G06V10/143
CPCG06V40/1324G06V40/1318G06V40/1365G06V10/141G06V10/143G02B6/001
Inventor 李顺展张玮青小刚
Owner SHENZHEN GOODIX TECH CO LTD
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