- Patent Title: Fingerprint recognition sensor and display device having the same
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Application No.: US16503863Application Date: 2019-07-05
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Publication No.: US10977475B2Publication Date: 2021-04-13
- Inventor: Jong Woo Jin , Jin Hyeong Yu , Hyunwoo Jin , Jun Woo Chung , Youn Duck Nam
- Applicant: SILICON DISPLAY TECHNOLOGY
- Applicant Address: KR Yongin-si
- Assignee: SILICON DISPLAY TECHNOLOGY
- Current Assignee: SILICON DISPLAY TECHNOLOGY
- Current Assignee Address: KR Yongin-si
- Agency: Lex IP Meister, PLLC
- Priority: KR10-2018-0079276 20180709,KR10-2019-0062120 20190527
- Main IPC: G06K9/00
- IPC: G06K9/00

Abstract:
A fingerprint recognition sensor according to an exemplary embodiment of the present invention includes: a photo sensor for sensing light that is diffuse-reflected from a finger of a user and incident on the photo sensor, or that is transmitted through the finger and incident on the photo sensor; a first matrix positioned on the photo sensor and including a first opening; a second matrix positioned on the first matrix and including a second opening; and a cover layer including one surface contacting the finger and positioned on the second matrix, wherein, from among light that is diffuse-reflected from the finger and incident on the cover layer or that is transmitted through the finger and incident on the cover layer, light having an angle, formed by a normal line on the one surface of the cover layer and a path of the light incident on the cover layer, that is greater than a critical angle, sequentially passes through the second opening and the first opening and is incident on the photo sensor.
Public/Granted literature
- US20200012833A1 FINGERPRINT RECOGNITION SENSOR AND DISPLAY DEVICE HAVING THE SAME Public/Granted day:2020-01-09
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