Invention Grant
- Patent Title: Optical fingerprint sensing module and display device with optical fingerprint detection
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Application No.: US16885302Application Date: 2020-05-28
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Publication No.: US11906713B2Publication Date: 2024-02-20
- Inventor: Feng-Jung Kuo , Min Huang , Jung-Chung Lee , Chi-Ting Chen , Li-Yuan Chang , I-Hsiu Chen , Chin-Hui Huang
- Applicant: NOVATEK Microelectronics Corp.
- Applicant Address: TW Hsinchu
- Assignee: NOVATEK Microelectronics Corp.
- Current Assignee: NOVATEK Microelectronics Corp.
- Current Assignee Address: TW Hsinchu
- Agency: CKC & Partners Co., LLC
- Main IPC: G02B13/14
- IPC: G02B13/14 ; G02B6/00 ; G02B1/11 ; G02B5/20 ; G02B7/02 ; G02B5/00 ; F21V8/00

Abstract:
An optical fingerprint sensing module includes an image sensing device, a light source and a light shielding structure. The image sensing device is configured to sense light transmitted from a fingerprint of a finger on a display panel. The image sensing device includes a light sensing plane having a first geometric center. The light source includes a light emitting plane having a second geometric center. The first geometric center is separated from the second geometric center by a distance from 2 mm to 20 mm. The light shielding structure is disposed between the image sensing device and the light source. In examples, the optical fingerprint sensing module further includes a field angle controller to constrain light pass there through with a field angle of 5-60 degrees. A display device including an optical fingerprint sensing module is disclosed herein as well.
Public/Granted literature
- US20200292796A1 OPTICAL FINGERPRINT SENSING MODULE AND DISPLAY DEVICE WITH OPTICAL FINGERPRINT DETECTION Public/Granted day:2020-09-17
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