公开(公告)号：US20200098323A1

公开(公告)日：2020-03-26

申请号：US16390907

申请日：2019-04-22

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： HYUN DAE LEE ,  Seung Hyun Moon ,  Dong Wook Yang ,  Bit Na Lee ,  Hee Chul Hwang

IPC: G09G3/36

Abstract: A timing controller may include a first compensator configured to generate second data by optically compensating for first data, based on compensation data, a first compensation memory configured to store the compensation data, a second compensator configured to generate image data by compensating for a lifetime of the second data, based on accumulated data of the second data, and a second compensation memory configured to store the accumulated data and the compensation data.

公开(公告)号：US11875593B2

公开(公告)日：2024-01-16

申请号：US17338002

申请日：2021-06-03

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Seung Hyun Moon ,  Dong Wook Yang ,  Go Eun Cha ,  Kyung Tea Park ,  Kang Bin Jo

IPC: G06V40/13 ,  G06T7/80 ,  G06T7/70 ,  G06F3/044 ,  G06F18/22

CPC classification number: G06V40/1318 ,  G06F3/0446 ,  G06F18/22 ,  G06T7/70 ,  G06T7/80 ,  G06F2203/04102

Abstract: A display device includes a display panel including a pinhole optical system and an optical sensor overlapping the pinhole optical system. A fingerprint detection method which detects a user's fingerprint using the display device includes obtaining fingerprint sensing data by sensing a user's fingerprint using the display device, detecting misalignment information indicating a degree of misalignment between the pinhole optical system and the optical sensor, generating calibration data using at least one piece of reference data corresponding to at least one reference folding angle according to the detected misalignment information, generating fingerprint data by correcting the fingerprint sensing data using the calibration data, and detecting the user's fingerprint according to the fingerprint data.

公开(公告)号：US20230397472A1

公开(公告)日：2023-12-07

申请号：US18451053

申请日：2023-08-16

Applicant: Samsung Display Co., Ltd.

Inventor： YUN HO KIM ,  Keum Dong Jung ,  Jin Oh Kwag ,  Won Sang Park ,  Deok Hwa Woo ,  Bong Hyun You ,  Chul Kim ,  Seung Hyun Moon ,  Jun Hee Moon ,  Hee Chul Hwang

IPC: H10K59/65 ,  G06V40/12 ,  G06V40/13 ,  H10K59/12

CPC classification number: H10K59/65 ,  G06V40/1394 ,  G06V40/1318 ,  G06V40/1388 ,  H10K59/12 ,  H01L27/14678

Abstract: Provided is a display device including a substrate including a fingerprint area. The fingerprint area includes a first area and a second area. A light-emitting element layer is disposed on the substrate. The light-emitting element layer includes light-emitting elements. A sensor layer is disposed on the substrate, the sensor layer including photosensors. The light-emitting elements include a first light-emitting element arranged in the first area and a second light-emitting element arranged in the second area. During a fingerprint sensing period, the first light-emitting element emits light and the second light-emitting element does not emit light.

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：US11475696B2

公开(公告)日：2022-10-18

申请号：US16110898

申请日：2018-08-23

Applicant: Samsung Display Co., Ltd.

Inventor： Seung Hyun Moon

IPC: G06K9/00 ,  G09G3/3275 ,  G09G3/3233 ,  G06V40/13 ,  G06V40/12

Abstract: A display device may include a display unit, a finger print sensing unit, and a timing control unit. The display unit includes a plurality of pixel units and includes a fingerprint recognition unit, which may generate first fingerprint data related to a fingerprint. The fingerprint sensing unit may extract a plurality of maxima corresponding to ridge portions of the fingerprint from the first fingerprint data to generate second fingerprint data and may generate luminance data based on the second fingerprint data. The timing control unit may calculate a degree of deterioration of the fingerprint recognition unit based on the luminance data to generate compensation data. The fingerprint recognition unit may receive a data signal corresponding to the compensation data.

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：US20210055826A1

公开(公告)日：2021-02-25

申请号：US16997871

申请日：2020-08-19

Applicant: Samsung Display Co., LTD.

Inventor： Won Sang PARK ,  Jin Oh Kwag ,  II Nam Kim ,  Ji Hun Ryu ,  Seung Hyun Moon ,  Bong Hyun You ,  Jong Hyun Lee ,  Hee Chul Hwang

IPC: G06F3/042 ,  G06K9/00 ,  G06F21/32

Abstract: A display device includes a fingerprint sensor including a first layer having at least one photo sensor to generate a fingerprint image corresponding to reflected light from a fingerprint contact surface, light emitting elements to transmit light reflected by the fingerprint, and a second layer including pin holes to allow reflected light to be incident upon the at least one photo sensor; and fingerprint detector to receive the fingerprint image from the fingerprint sensor, to extract a first image corresponding to a first region of the fingerprint and a second image corresponding to a second region of the fingerprint, to compare the first and second images to determine similarity, and to perform fingerprint authentication, based on similarity determination, where the fingerprint first region is in contact with the fingerprint contact surface and the fingerprint second region is not in contact with the fingerprint contact surface.