Invention Grant
- Patent Title: Optical fingerprint recognition device and fingerprint sensing device thereof
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Application No.: US18088624Application Date: 2022-12-26
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Publication No.: US11961324B2Publication Date: 2024-04-16
- Inventor: Shu-Fang Wang , Wan-Ting Huang , Kuan-Ting Lee
- Applicant: Novatek Microelectronics Corp.
- Applicant Address: TW Hsinchu
- Assignee: Novatek Microelectronics Corp.
- Current Assignee: Novatek Microelectronics Corp.
- Current Assignee Address: TW Hsinchu
- Agency: JCIPRNET
- Main IPC: G06F3/041
- IPC: G06F3/041 ; G06V40/12 ; G06V40/13

Abstract:
An optical fingerprint recognition device includes a light-emitting diode (LED) array and a fingerprint sensing device. The LED array includes a central LED area and an edge LED area, and configured to display a light source pattern in response to a fingerprint sensing request. The light source pattern includes a central portion and a surrounding portion. During displaying the light source pattern, a plurality of red display subpixels of the central LED area are not illuminating and a plurality of red display subpixels of the edge LED area are illuminating. The fingerprint sensing device generates a first fingerprint image according to a plurality of first sensing signals obtained from a plurality of first sensing pixel area, and the first fingerprint image is adapted to be used for examining whether a finger which triggers the fingerprint sensing request is real or fake.
Public/Granted literature
- US20230215214A1 OPTICAL FINGERPRINT RECOGNITION DEVICE AND FINGERPRINT SENSING DEVICE THEREOF Public/Granted day:2023-07-06
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