Backlight module, method for identifying fingerprint under screen, device and electronic device

A technology of fingerprint identification and backlight module, which is applied in character and pattern recognition, identification device, acquisition/organization of fingerprints/palmprints, etc. It can solve the problem that the fingerprint identification scheme is not applicable to LCD screens, etc.

Active Publication Date: 2019-01-11
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, since the light-emitting principle and specific structure of the Liquid Crystal Display (LCD) screen are dif...

Method used

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  • Backlight module, method for identifying fingerprint under screen, device and electronic device
  • Backlight module, method for identifying fingerprint under screen, device and electronic device
  • Backlight module, method for identifying fingerprint under screen, device and electronic device

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Experimental program
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Embodiment Construction

[0158] As smart terminals enter the era of full screens, the fingerprint collection area on the front of electronic devices is squeezed by the full screen, so under-display or under-screen fingerprint recognition technology has attracted more and more attention. The fingerprint recognition technology under the screen refers to the installation of the fingerprint recognition device under the screen (such as a fingerprint recognition module) under the display screen, so as to realize the fingerprint recognition operation inside the display area of ​​the display screen, and does not need to be on the front of the electronic device except for the display area. Set the fingerprint collection area for the locale.

[0159] The off-screen fingerprint recognition technology may include an off-screen optical fingerprint recognition technology, an off-screen ultrasonic fingerprint recognition technology, or other types of off-screen fingerprint recognition technologies.

[0160] Take the...

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PUM

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Abstract

A backlight module, a method for identifying a fingerprint under the screen, a device and an electronic device are provided. The fingerprint recognition device is applied to an electronic device having a backlight module, and the fingerprint recognition device includes: a fingerprint recognition module. The fingerprint recognition module is disposed under the backlight module, and the fingerprintrecognition module is configured to receive the infrared light signal emitted by the infrared light source and illuminate the human body finger and pass through the backlight module. The infrared light signal is used to detect the fingerprint information of the finger. The haze of the infrared light signal when passing through the backlight module is smaller than the haze when the visible light for displaying an image passes through the backlight module. An screen fingerprint recognition device of the embodiment of the present application can effectively implement the screen fingerprint recognition of the passive light-emitting display.

Description

technical field [0001] Embodiments of the present invention relate to the field of off-screen fingerprint identification, and more specifically, to a backlight module, an off-screen fingerprint identification method, device, and electronic equipment. Background technique [0002] At present, the fingerprint recognition under the screen is mainly used in the organic light-emitting diode (Organic Light-Emitting Diode, OLED) screen. The reflected light formed after the finger is reflected detects the fingerprint. [0003] However, since the light-emitting principle and specific structure of a liquid crystal display (Liquid Crystal Display, LCD) screen are different from those of an OLED screen, the fingerprint identification solution under the OLED screen is not suitable for the LCD screen. [0004] Therefore, how to realize the optical fingerprint recognition under the LCD screen is a technical problem urgently needed to be solved in this field. Contents of the invention ...

Claims

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Application Information

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IPC IPC(8): G06K9/00G09F9/00G06V10/141G06V10/143
CPCG09F9/00G06V40/1324G06V40/1318G02B5/208G06V40/1394G06V10/141G06V10/143
Inventor 谢浩
Owner SHENZHEN GOODIX TECH CO LTD
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