公开(公告)号：US11758793B2

公开(公告)日：2023-09-12

申请号：US16992801

申请日：2020-08-13

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: G06V40/13 ,  H10K59/65 ,  G06V40/12 ,  H10K59/12 ,  H01L27/146

CPC classification number: H10K59/65 ,  G06V40/1318 ,  G06V40/1388 ,  G06V40/1394 ,  H10K59/12 ,  H01L27/14623 ,  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：US20210073507A1

公开(公告)日：2021-03-11

申请号：US16992801

申请日：2020-08-13

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: G06K9/00 ,  H01L27/32

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：US20230329066A1

公开(公告)日：2023-10-12

申请号：US18167726

申请日：2023-02-10

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hyun Dae Lee ,  ll Nam Kim ,  Seung Hyun Moon ,  Dong Wook Yang ,  Kang Bin Jo ,  Go Eun Cha

IPC: H10K59/65 ,  H10K59/121 ,  H10K59/131 ,  G09G3/3266 ,  G06V40/13 ,  H10K59/40

CPC classification number: H10K59/65 ,  H10K59/1213 ,  H10K59/131 ,  G09G3/3266 ,  G06V40/1318 ,  H10K59/40

Abstract: A display device includes a light-emitting pixel and a sensor pixel. The light-emitting pixel includes a light-emitting element, a first transistor electrically connected between a first line and a second line and configured to control a driving current flowing through the light-emitting element in response to a voltage of a first node, and a second transistor connected between the first node and a third line. The sensor pixel includes a light-receiving element connected between a sensor node and the second line, and a first sensor transistor configured to control a current flowing between the third line and a readout line in response to a voltage of the sensor node.

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.

公开(公告)号：US11024241B2

公开(公告)日：2021-06-01

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：US11929032B2

公开(公告)日：2024-03-12

申请号：US17887973

申请日：2022-08-15

Applicant: Samsung Display Co., LTD.

Inventor： Hyun Dae Lee ,  Il Nam Kim ,  Seung Hyun Moon ,  Dong Wook Yang ,  Kang Bin Jo ,  Go Eun Cha

IPC: G06V40/13 ,  G09G3/3266

CPC classification number: G09G3/3266 ,  G06V40/1318 ,  G09G2300/0828 ,  G09G2310/0294 ,  G09G2310/061 ,  G09G2310/08 ,  G09G2360/14

Abstract: A display device comprises a display panel which comprises scan lines, sensing lines, pixels electrically connected to each of the scan lines, and photo sensors electrically to each of the scan lines and the sensing lines, a scan driver which outputs scan signals to the scan lines according to a scan control signal, a timing controller which outputs the scan control signal to the scan driver, and a readout circuit which receives light sensing signals of the photo sensors from the sensing lines. The timing controller sets a frame frequency of the scan control signal to a first frame frequency in a first mode in which the display panel displays an image. The timing controller sets the frame frequency of the scan control signal to a second frame frequency in a second mode in which the photo sensors sense a fingerprint.

公开(公告)号：US11170090B2

公开(公告)日：2021-11-09

申请号：US16997871

申请日：2020-08-19

Applicant: Samsung Display Co., LTD.

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

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

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.

公开(公告)号：US12106601B2

公开(公告)日：2024-10-01

申请号：US18135791

申请日：2023-04-18

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Il Nam Kim ,  Seung Hyun Moon ,  Dong Wook Yang ,  Hyun Dae Lee ,  Kang Bin Jo ,  Go Eun Cha ,  Hee Chul Hwang

IPC: G06V40/13 ,  G09G3/3233 ,  H10K39/34 ,  H10K59/131

CPC classification number: G06V40/1318 ,  G09G3/3233 ,  H10K39/34 ,  H10K59/131 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0202 ,  G09G2310/08 ,  G09G2354/00 ,  G09G2360/14

Abstract: A display device including: scan lines including first and second scan lines; pixels connected to the scan lines; photo sensors connected to some of the scan lines, the photo sensors including a first photo sensor connected to the first scan line and a readout line, and a second photo sensor connected to the second scan line and the readout line; a scan driver to provide scan signals to the scan lines; and a readout circuit to receive, through the readout line, detection signals which are outputted from the photo sensors in response to the scan signals, wherein, while the scan signals are provided to the first and second scan lines, the readout circuit samples a detection signal of one of the first photo sensor and the second photo sensor without sampling a detection signal of the other one of the first photo sensor and the second photo sensor.

公开(公告)号：US11568036B2

公开(公告)日：2023-01-31

申请号：US17520699

申请日：2021-11-07

Applicant: Samsung Display Co., Ltd.

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

IPC: G06F21/32 ,  G06F3/042 ,  G06V40/13 ,  G06V40/12

Abstract: A display device including 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 a 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.

公开(公告)号：US11423691B2

公开(公告)日：2022-08-23

申请号：US16927622

申请日：2020-07-13

Applicant: Samsung Display Co., Ltd.

Inventor： Seung Hyun Moon ,  Yun Ho Kim ,  Jin Oh Kwag ,  Won Sang Park ,  Bong Hyun You ,  Keum Dong Jung ,  Chui Kim ,  Jun Hee Moon ,  Deok Hwa Woo ,  Hee Chui Hwang

IPC: G06V40/13 ,  G06V40/12

Abstract: A display device includes a display panel including a plurality of pixels configured to display an image, a photo sensor on one surface of the display panel to sense light, and a fingerprint detector configured to control a fake determination image pattern of a fingerprint sensing area of the display panel configured to sense a fingerprint, and to perform fingerprint authentication and fake fingerprint determination, based on a sensing signal supplied from the photo sensor.