公开(公告)号：US20210365661A1

公开(公告)日：2021-11-25

申请号：US17392179

申请日：2021-08-02

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hyun Dae LEE ,  Seung Hyun MOON ,  Dong Wook YANG ,  Hee Chul HWANG ,  Deok Hwa WOO ,  Young Eun LEE

IPC: G06K9/00 ,  G06T3/40

Abstract: A fingerprint sensor includes a substrate, a light blocking layer that is on a first surface of the substrate and includes openings in a light blocking mask, and a sensor layer that is on a second surface of the substrate and includes photo sensors. A fingerprint sensing method of the fingerprint sensor includes: storing a calibration image; generating an original image, based on sensing signals from the photo sensors; performing calibration on the original image by utilizing the calibration image; and detecting a fingerprint, based on the calibrated image. The calibration image is generated by synthetizing valid regions extracted from an original calibration image corresponding to the original image.

公开(公告)号：US20210064839A1

公开(公告)日：2021-03-04

申请号：US16943534

申请日：2020-07-30

Applicant: Samsung Display Co., Ltd.

Inventor： Hyun Dae LEE ,  Seung Hyun MOON ,  Dong Wook YANG ,  Hee Chul HWANG ,  Deok Hwa WOO ,  Young Eun LEE

IPC: G06K9/00 ,  G06T3/40

Abstract: A fingerprint sensor includes a substrate, a light blocking layer that is on a first surface of the substrate and includes openings in a light blocking mask, and a sensor layer that is on a second surface of the substrate and includes photo sensors. A fingerprint sensing method of the fingerprint sensor includes: storing a calibration image; generating an original image, based on sensing signals from the photo sensors; performing calibration on the original image by utilizing the calibration image; and detecting a fingerprint, based on the calibrated image. The calibration image is generated by synthetizing valid regions extracted from an original calibration image corresponding to the original image.