Optical fingerprint sensor module

A fingerprint sensor and optical technology, applied in the direction of acquiring/organizing fingerprints/palmprints, instruments, characters and pattern recognition, etc., can solve problems such as performance needs to be improved, and achieve the effect of improving the quality of fingerprint images and expanding the width

Active Publication Date: 2016-10-12
SHANGHAI OXI TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The structure of the existing optical fingerprint sensor mo

Method used

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Examples

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Embodiment Construction

[0027] An optical fingerprint sensor module such as figure 1 As shown, a protective layer 100 , an optical fingerprint sensor 110 and a backlight 120 are included. The backlight 120 is located under the protective layer 100 , and the optical fingerprint sensor 110 is directly contacted and stacked under the protective layer 100 . The optical fingerprint sensor 110 includes a fingerprint sensing layer 111 and a substrate 112 . The fingerprint sensing layer 111 is located on the upper surface of the substrate 112 , that is, the fingerprint sensing layer 111 is located between the substrate 112 and the protection layer 100 . The backlight 120 is located on the side of the optical fingerprint sensor 110 . At this time, the incident angle a of the light emitted by the backlight source 120 entering the protective layer 100 is relatively small. Therefore, in the optical fingerprint sensor 110, the width A of the area where the fingerprint sensing layer 111 can receive reflected ligh...

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Abstract

An optical fingerprint sensor module comprises a first light-transmitting substrate, a second light-transmitting substrate located below the first light-transmitting substrate, and a backlight source located below the first light-transmitting substrate. The backlight source is located on the lateral side of the second light-transmitting substrate. The optical fingerprint sensor module further comprises a fingerprint sensing layer which is located on the lower surface of the second light-transmitting substrate. The performance of the optical fingerprint sensor module is improved, and the quality of a fingerprint image obtained through the optical fingerprint sensor module is improved.

Description

technical field [0001] The invention relates to the field of optical fingerprint identification, in particular to an optical fingerprint sensor module. Background technique [0002] Fingerprint imaging recognition technology is to collect the fingerprint image of the human body through the fingerprint sensor, and then compare it with the existing fingerprint imaging information in the system to judge whether it is correct or not, and then realize the technology of identity recognition. Due to its ease of use and the uniqueness of human fingerprints, fingerprint recognition technology has been widely used in various fields. For example, security inspection areas such as public security bureaus and customs, building access control systems, and consumer products such as personal computers and mobile phones, etc. [0003] The realization of fingerprint imaging recognition technology includes optical imaging, capacitive imaging, ultrasonic imaging and other technologies. Relati...

Claims

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Application Information

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IPC IPC(8): G06K9/00
CPCG06V40/1341G06V40/1324G06V40/13
Inventor 凌严朱虹
Owner SHANGHAI OXI TECH
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