公开(公告)号：US11488412B2

公开(公告)日：2022-11-01

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: G06V40/13 ,  G06T3/40 ,  G06V40/12

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：US11386693B2

公开(公告)日：2022-07-12

申请号：US16930321

申请日：2020-07-16

Applicant: Samsung Display Co., LTD.

Inventor： Dong Wook Yang ,  Hyun Dae Lee ,  Seung Hyun Moon ,  Young Eun Lee ,  Hee Chui Hwang

IPC: G06K9/00 ,  G06V40/13

Abstract: The display device comprises: a display panel displaying an image, a light blocking layer disposed under the display panel and comprising a plurality of holes, a fingerprint sensing layer disposed under the light blocking layer and comprising a plurality of fingerprint sensors receiving reflected light passing through the plurality of hole and generating a sensing signal, and a sensor driver controlling operations of the plurality of fingerprint sensors. The sensor driver compares fingerprint data generated based on a sensing signal generated from reflected light by a user's fingerprint with prestored reference data to generate a fingerprint image.

公开(公告)号：US20210117639A1

公开(公告)日：2021-04-22

申请号：US16930321

申请日：2020-07-16

Applicant: Samsung Display Co., LTD.

Inventor： Dong Wook YANG ,  Hyun Dae Lee ,  Seung Hyun Moon ,  Young Eun Lee ,  Hee Chul Hwang

IPC: G06K9/00

Abstract: The display device comprises: a display panel displaying an image, a light blocking layer disposed under the display panel and comprising a plurality of holes, a fingerprint sensing layer disposed under the light blocking layer and comprising a plurality of fingerprint sensors receiving reflected light passing through the plurality of hole and generating a sensing signal, and a sensor driver controlling operations of the plurality of fingerprint sensors. The sensor driver compares fingerprint data generated based on a sensing signal generated from reflected light by a user's fingerprint with prestored reference data to generate a fingerprint image.

公开(公告)号：US11080507B2

公开(公告)日：2021-08-03

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.