Invention Grant
- Patent Title: Under-display optical fingerprint sensor with NFV collimator and TFT/organic imager
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Application No.: US16767887Application Date: 2019-07-02
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Publication No.: US11922713B2Publication Date: 2024-03-05
- Inventor: Mohammad Yeke Yazdandoost , Giovanni Gozzini , Dale Setlak
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: APPLE INC.
- Current Assignee: APPLE INC.
- Current Assignee Address: US CA Cupertino
- Agency: BAKERHOSTETLER
- International Application: PCT/US2019/040355 2019.07.02
- International Announcement: WO2020/068242A 2020.04.02
- Date entered country: 2020-05-28
- Main IPC: G06V40/13
- IPC: G06V40/13 ; G06F3/042 ; H10K30/80 ; H10K50/30

Abstract:
An apparatus for fingerprint sensing includes a touch-display layer covered by a transparent layer. The touch-display layer can emit light to illuminate a finger surface touching the transparent layer. The touch-display layer is transparent to reflected light from the surface to underlying layers. The underlying layers include a collimator layer and a pixelated image sensor. The collimator layer can collimate the reflected light, and the pixelated image sensor can sense the collimated reflected light. The collimator can collimate the reflected light to enable a one-to-one imaging ratio between an area of the finger surface touching the transparent layer and an area of a corresponding image formed on the pixelated image sensor.
Public/Granted literature
- US20210019017A1 UNDER-DISPLAY OPTICAL FINGERPRINT SENSOR WITH NFV COLLIMATOR AND TFT/ORGANIC IMAGER Public/Granted day:2021-01-21
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