Screen under biometric identification device and electronic device

A technology for biometric identification and electronic equipment, applied in the field of biometric identification, can solve the problems of being easily affected by moire fringes, affecting the efficiency of biometric identification under the screen, image distortion aberration, etc., to reduce aberration and distortion, Avoid aberrations and distortions, reduce the effect of thickness

Active Publication Date: 2018-09-07
SHENZHEN GOODIX TECH CO LTD
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  • Abstract
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Problems solved by technology

The first is an off-screen optical fingerprint recognition technology based on a periodic microhole array, which is susceptible to Moiré fringes
The second is the under-screen optical fingerprint recognition technology based on microlenses. The technology based on traditional spherical lenses is prone to problems such as image distortion and aberration, and it is not easy to make the thickness of the sensor thinner due to the focal length requirements of the microlenses.
Due to the existence of the above-mentioned problems, the efficiency of biometric recognition under the screen is affected

Method used

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  • Screen under biometric identification device and electronic device
  • Screen under biometric identification device and electronic device
  • Screen under biometric identification device and electronic device

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Embodiment Construction

[0041] The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings.

[0042] As electronic devices enter the era of full screens, the biometric collection area on the front of electronic devices is squeezed by the full screen, so the under-display or under-screen biometric technology has attracted more and more attention. Under-screen biometric identification technology refers to the installation of biometric identification modules (such as fingerprint identification modules) under the display screen, so as to realize the biometric identification operation in the display area of ​​the display screen, without removing the display on the front of the electronic device. The area outside the area sets the biometric collection area.

[0043] Under-display biometrics use light returning from the top surface of the device's display assembly for fingerprint sensing and other sensing operations. The returned...

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Abstract

The embodiment of the present application discloses a screen under biometric identification device and an electronic device. The under-screen biometric device includes: a micro hole disposed under thedisplay screen for transmitting reflected light from above the display screen to the aspherical transmission structure; and an aspherical transmission structure disposed under the micro hole An aspherical mirror is provided for transmitting the reflected light to the photosensor array by the aspherical mirror; and a photosensor array for detecting the reflected light. The technical solution of the embodiment of the present application can improve the efficiency of the biometric recognition under the screen.

Description

technical field [0001] The embodiments of the present application relate to the technical field of biometric identification, and more specifically, relate to an under-screen biometric identification device and electronic equipment. Background technique [0002] With the rapid development of the mobile phone industry, people pay more and more attention to biometric technology, and more convenient off-screen biometric technology, such as the practical application of off-screen fingerprint recognition technology, has become a public demand. [0003] There are two main types of under-display optical fingerprint sensor technologies. The first is an off-screen optical fingerprint recognition technology based on a periodic microhole array, which is susceptible to Moiré fringes. The second is the under-screen optical fingerprint recognition technology based on microlenses. The technology based on traditional spherical lenses is prone to problems such as image distortion and aberrat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00
CPCG06V40/1324G06V40/1318G06V10/17
Inventor 蒋鹏
Owner SHENZHEN GOODIX TECH CO LTD
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