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Under-screen biometric devices and electronic devices

A technology for biometric identification and electronic equipment, which is applied in the field of biometric identification and can solve problems such as being easily affected by Moiré fringes, affecting the efficiency of biometric identification under the screen, and image distortion and aberration.

Active Publication Date: 2022-05-17
SHENZHEN GOODIX TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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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  • Under-screen biometric devices and electronic devices
  • Under-screen biometric devices and electronic devices
  • Under-screen biometric devices and electronic devices

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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 an under-screen biometric identification device and electronic equipment. The biometric identification device under the screen includes: a microhole, arranged under the display screen, for transmitting reflected light from above the display screen to an aspheric transmission structure; an aspheric transmission structure, arranged under the microhole, It includes an aspheric reflector, the aspheric transmission structure is used to transmit the reflected light to the photoelectric sensor array through the aspheric reflector; the photoelectric sensor array is used to detect the reflected light. The technical solutions of the embodiments of the present application can improve the efficiency of biological feature 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 Patents(China)
IPC IPC(8): G06V40/13
CPCG06V40/1324G06V40/1318G06V10/17
Inventor 蒋鹏
Owner SHENZHEN GOODIX TECH CO LTD