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：US11783620B2

公开(公告)日：2023-10-10

申请号：US17662901

申请日：2022-05-11

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jong Hyun Lee ,  Il Nam Kim ,  Kang Bin Jo ,  Dong Wook Yang

IPC: G09G3/3233 ,  G06V40/13 ,  G09G3/3208

CPC classification number: G06V40/1318 ,  G09G3/3208 ,  G09G2300/0842 ,  G09G2310/061 ,  G09G2310/08

Abstract: A display device includes light emitting and receiving pixels, a reset line, a fingerprint scan line, a fingerprint sensing line, and first and second voltage lines in a display region. Each light receiving pixel includes a light receiving element including a first electrode and a second electrode connected to the second voltage line, a sensing transistor connecting the first electrode to the fingerprint sensing line according to a fingerprint scan signal applied to the fingerprint scan line and a reset transistor to connect the first voltage line to the first electrode according to a reset signal applied to the reset line. A first voltage applied to the first voltage line is greater than a second voltage applied to the second voltage line, and a third voltage applied to the fingerprint sensing line is greater than the second voltage and smaller than the first voltage.

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：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：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：US20190140200A1

公开(公告)日：2019-05-09

申请号：US16103845

申请日：2018-08-14

Applicant: Samsung Display Co., Ltd.

Inventor： Eun Ho Lee ,  Dong Wook Yang ,  Hyun Dae Lee ,  Woo Seok Han

IPC: H01L51/00 ,  H01L27/32

Abstract: A flexible display device includes: a substrate including a main area, a first edge area arranged in a first direction with respect to the main area and including a first data pad portion, and a second edge area arranged in a second direction, which intersects the first direction, with respect to the main area and including a second data pad portion; and a flexible film on which first and second signal pad portions connected to the first and second data pad portions, respectively, are arranged. The first edge area may be bent along a first bending line, which extends in the second direction, and the second edge area may be bent along a second bending line, which extends in the first direction.

公开(公告)号：US12245843B2

公开(公告)日：2025-03-11

申请号：US18389238

申请日：2023-11-14

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jong Yeop An ,  Chul Kim ,  Gyeong Ub Moon ,  Dong Wook Yang ,  Hyeon Jun Lee

IPC: G06F3/041 ,  A61B5/021 ,  A61B5/024 ,  G06F3/044 ,  G09G3/3233

Abstract: A display device for measuring biometric information such as blood pressure by utilizing both display pixels and light sensing pixels within a display panel. The display device includes a main driving circuit that dynamically sets and adjusts light emission conditions, including emission color and luminance based on the user's touch area and shape, thereby optimizing the detection of biosignals such as pulse waves. The system enhances the signal-to-noise ratio (SNR) and improves the accuracy of biometric measurements.

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.