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Off-screen optical fingerprint recognition device and electronic device

A technology of fingerprint identification and electronic equipment, which is applied in the field of biometrics, can solve the problems of imaging blur and achieve the effect of increasing the field of view and improving the clarity

Active Publication Date: 2018-12-21
SHENZHEN GOODIX TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, due to the different conditions of the fingers, such as some dry fingers with low humidity, the above-mentioned optical fingerprint recognition technology under the micro-lens screen also has a certain degree of imaging blur.

Method used

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  • Off-screen optical fingerprint recognition device and electronic device
  • Off-screen optical fingerprint recognition device and electronic device

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Embodiment Construction

[0033] In order to make the purpose, technical solution and advantages of the present application clearer, some embodiments of the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.

[0034] The first embodiment of the present application relates to an under-screen optical fingerprint recognition device, which can be arranged under a display screen (such as a touch screen), and includes: a reflective component, a lens, and a fingerprint sensor. When the finger is pressed on the display screen, the excitation light emitted by the light source (such as the light emitted by the display unit of the display screen or the infrared light source below the display screen) is reflected on the surface of the finger and forms the fingerprint ligh...

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Abstract

The present application relates to the field of biometrics, and provides an off-screen optical fingerprint recognition device and an electronic device using the under-screen optical fingerprint recognition device. The under-screen optical fingerprint recognition device comprises a reflection component, a lens and a fingerprint sensor; the reflection component, the lens and the fingerprint sensor are disposed on a fingerprint detection optical path of the under-screen optical fingerprint recognition device; a reflection path of the reflection component, configured to converge the fingerprint light reflected by the reflection component to the fingerprint sensor; wherein the fingerprint light reflected by the finger to the display screen and entering the fingerprint sensor through the fingerprint detection optical path The angle of incidence on the display screen is greater than or equal to the preset angle. With the embodiments of the present application, it is possible to improve the sharpness of imaging.

Description

technical field [0001] The present application relates to the technical field of biometric identification, and in particular to an under-screen optical fingerprint identification device and electronic equipment using the under-screen optical fingerprint identification device. Background technique [0002] With the rapid development of mobile phone and other terminal manufacturing industries, people pay more and more attention to biometric technology, and more convenient off-screen fingerprint recognition technology has become the demand of the public. There are two main types of under-screen optical fingerprint recognition technologies that have been disclosed. The first is an off-screen optical fingerprint recognition technology based on a periodic microhole array, which has low imaging resolution, is susceptible to moiré fringe interference, and has a high cost. The second is the off-screen optical fingerprint recognition technology based on microlenses, which has improve...

Claims

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Application Information

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IPC IPC(8): G06K9/00
CPCG06V40/13G06V40/1324G02B7/182
Inventor 何毅李可蒋鹏汪海翔
Owner SHENZHEN GOODIX TECH CO LTD
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