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：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：US11527192B2

公开(公告)日：2022-12-13

申请号：US17331235

申请日：2021-05-26

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Kyung Tea Park ,  Jong Hyun Lee ,  Kang Bin Jo ,  Go Eun Cha

IPC: G09G3/20 ,  G06F3/041

Abstract: An input sensing device includes sensor pixels initialized in response to a reset signal provided through a reset line, and output a sensing signal to a read-out line in response to a scan signal provided through a scan line. A controller generates at least one start signal and dock signals. A selector selectively provides the at least one start signal and the dock signals to first control lines or second control lines. A reset driver connected to the first control lines, and supplying reset signals to at least some of the reset lines based on the at least one start signal and the clock signals provided through the first control lines. A scan driver is connected to the second control lines, and supplies scan signals to at least some of the scan lines based on the at least one start signal and the clock signals.

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：US11896397B2

公开(公告)日：2024-02-13

申请号：US18152640

申请日：2023-01-10

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Chul Kim ,  Kang Bin Jo

IPC: A61B5/00 ,  A61B5/021 ,  A61B5/024 ,  G06F3/041 ,  G09G3/3233 ,  G06F3/044 ,  G09G3/20

CPC classification number: A61B5/6898 ,  A61B5/02108 ,  A61B5/02416 ,  G06F3/0414 ,  G06F3/0416 ,  G09G3/3233 ,  G06F3/0412 ,  G06F3/0446 ,  G09G3/2007 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2310/0213 ,  G09G2310/08 ,  G09G2354/00 ,  G09G2360/14 ,  G09G2380/08

Abstract: A display device includes display pixels arranged in a display area of a display panel, light-sensing pixels arranged alternately with the display pixels in the display area, light-sensing scan lines, each divided into at least two horizontal lines disposed adjacent to each other and connected to light-sensing pixels disposed proximate to the at least two horizontal lines, a display scan driver configured to sequentially supply display scan signals to display pixels connected to each horizontal line through display scan lines corresponding to each horizontal line, a blood-pressure detecting circuit configured to measure a user's blood pressure using light-sensing signals input through the light-sensing pixels, and a display driving circuit configured to control a timing at which the display scan signals are supplied to the display scan lines and a timing at which sensing scan signals are supplied to the light-sensing scan lines.

公开(公告)号：US11829554B2

公开(公告)日：2023-11-28

申请号：US17453936

申请日：2021-11-08

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Kyung Tea Park ,  Hyun Dae Lee ,  Kang Bin Jo ,  Jong Hyun Lee

IPC: G06F1/03 ,  G06V40/13 ,  G06F3/044 ,  G06F3/041

CPC classification number: G06F3/04166 ,  G06F3/0443 ,  G06F3/0448 ,  G06V40/1306

Abstract: A display device includes a display panel including a plurality of touch electrodes, a touch driving circuit electrically connected to the plurality of touch electrodes, and a fingerprint sensor device disposed on one surface of the display panel and including a plurality of unit blocks. The fingerprint sensor device includes a plurality of fingerprint scan lines extending in a first direction, a plurality of fingerprint sensing lines extending in a second direction crossing the first direction, a plurality of sensor pixels respectively connected to the plurality of fingerprint scan lines and the plurality of fingerprint sensing lines, and a fingerprint scan driver having a plurality of stages for applying a fingerprint scan signal to each of the plurality of fingerprint scan lines. The touch driving circuit applies a start signal to the fingerprint scan driver.

公开(公告)号：US11837010B2

公开(公告)日：2023-12-05

申请号：US17333798

申请日：2021-05-28

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Kyung Tea Park ,  Jong Hyun Lee ,  Kang Bin Jo ,  Go Eun Cha

IPC: G06V40/13 ,  G09G3/20

CPC classification number: G06V40/1306 ,  G06V40/1318 ,  G09G3/2092 ,  G09G2310/0275 ,  G09G2330/028

Abstract: An input sensing device includes: sensor pixels, a horizontal driver, a selection circuit, and a vertical driver. Each of the sensor pixels is connected to a plurality of driving lines and a one of a plurality of signal input lines. The horizontal driver sequentially applies a horizontal driving signal to the sensor pixels through the driving lines. The selection circuit is connected to n of the signal input lines (n is a natural number of 2 or more) and to one output line. The selection circuit sequentially outputs n sensing signals received through the n signal input lines to the one output line. The vertical driver receives the n sensing signals through the one output line. The horizontal driver applies the horizontal driving signal n times to a given one of the driving lines to correspond to the n sensing signals.

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：US20220165834A1

公开(公告)日：2022-05-26

申请号：US17472842

申请日：2021-09-13

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Kang Bin Jo ,  Go Eun Cha ,  Kyung Tea Park ,  Jong Hyun Lee

IPC: H01L27/32 ,  G06K9/00

Abstract: A display device includes a display panel having a plurality of pixels connected to gate lines and data lines, and a plurality of fingerprint sensors connected to sensing lines and read-out lines. A gate driver provides gate signals to the gate lines and provides sensing signals to the sensing lines. The gate driver includes a first gate signal supply module providing a first gate signal to a first gate line among the gate lines. A first switching element is turned on by a reset enable signal to connect the first gate line and a first sensing line among the sensing lines.