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：US11690263B2

公开(公告)日：2023-06-27

申请号：US17028915

申请日：2020-09-22

Applicant: Samsung Display Co., LTD.

Inventor： Ji Hun Ryu ,  Il Nam Kim ,  Won Sang Park ,  Eun Jin Sung ,  Seong Ryong Lee ,  Jong Hyun Lee

IPC: H10K59/131 ,  H04M1/02 ,  H10K50/86 ,  H10K59/60

CPC classification number: H10K59/131 ,  H04M1/0266 ,  H04M1/0268 ,  H10K50/865 ,  H10K59/60

Abstract: A display device including a substrate; a display element layer on the substrate, the display element layer including light emitting devices; a circuit element layer between the substrate and the display element layer, the circuit element layer including signal lines and light transmitting areas which are located between the signal lines in a plan view and allow light to be transmitted therethrough; a first light blocking layer between the substrate and the circuit element layer, the first light blocking layer including first openings; and a second light blocking layer on the first light blocking layer, the second light blocking layer including second openings. The second light blocking layer includes second sub-light blocking layers disposed to be spaced apart from each other, the second sub-light blocking layers each having the second openings. The first openings of the first light blocking layer overlaps with an area between the second sub-light blocking layers.

公开(公告)号：US11543904B2

公开(公告)日：2023-01-03

申请号：US17138090

申请日：2020-12-30

Applicant: Samsung Display Co., LTD.

Inventor： Seung Lyong Bok ,  Jong In Baek ,  Young Seok Seo ,  Sun Mi Yu ,  Jong Hyun Lee ,  Jin Oh Kwag

IPC: G09G5/00 ,  G06F3/041 ,  G06F3/044 ,  G06F3/046 ,  H01L31/12 ,  H01L27/12 ,  H01L31/105 ,  H01L27/32 ,  H01L51/52 ,  G06V40/13 ,  G06F3/045 ,  H04R1/02

Abstract: A display device includes a thin-film transistor layer disposed on a substrate and including thin-film transistors; and an emission material layer disposed on the thin-film transistor layer. The emission material layer includes light-emitting elements each including a first light-emitting electrode, an emissive layer and a second light-emitting electrode, light-receiving elements each including a first light-receiving electrode, a light-receiving semiconductor layer and a second light-receiving electrode, and a first bank disposed on the first light-emitting electrode and defining an emission area of each of the light-emitting elements. The light-receiving elements are disposed on the first bank.

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：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：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：US11721124B2

公开(公告)日：2023-08-08

申请号：US17581983

申请日：2022-01-24

Applicant: Samsung Display Co., Ltd.

Inventor： Jong Hyun Lee ,  Il Nam Kim ,  Ji Hun Ryu ,  Eun Jin Sung ,  Seong Ryong Lee

IPC: G06V40/13 ,  H10K59/65 ,  H10K59/126 ,  H10K59/131 ,  H10K59/121

CPC classification number: G06V40/1318 ,  H10K59/126 ,  H10K59/1216 ,  H10K59/131 ,  H10K59/65

Abstract: A fingerprint sensor for a display device including: a substrate having first and second surfaces; a light transmission layer including a first layer disposed on the first surface of the substrate and having first openings in at least one first conductive layer, and a second layer disposed on the first surface of the substrate and having second openings in at least one second conductive layer; a light emitting element layer disposed on the first layer and the second layer and having at least one light emitting element; and a sensor layer disposed on the second surface of the substrate and having light sensors. At least a portion of the first openings and at least a portion of the second openings at least partially overlap and have different sizes.

公开(公告)号：US11694620B2

公开(公告)日：2023-07-04

申请号：US17649404

申请日：2022-01-31

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Ji Hun Ryu ,  Il Nam Kim ,  Jong Hyun Lee ,  Jae Kyoung Kim ,  Eun Jin Sung ,  Seong Ryong Lee

IPC: G06V40/13 ,  G09G3/3233 ,  G09G3/20 ,  G02F1/133

CPC classification number: G09G3/3233 ,  G06V40/1318 ,  G09G3/20 ,  G02F1/13312 ,  G09G2310/08 ,  G09G2360/14

Abstract: A display device is provided including a substrate. The substrate includes a display region that includes a plurality of pixels and a sensing region provided in at least one region of the display region. A circuit element layer is disposed on the substrate, the circuit element layer includes a plurality of conductive layers. A light emitting element layer is provided on the circuit element layer. The light emitting element layer includes a plurality of light emitting elements. A sensor layer is disposed on the substrate. The sensor layer includes a plurality of photo sensor units each including sensor pixels. The photo sensor units are arranged in an irregular pattern in the sensing region.

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：US11238256B2

公开(公告)日：2022-02-01

申请号：US16887595

申请日：2020-05-29

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Ji Hun Ryu ,  Il Nam Kim ,  Jong Hyun Lee ,  Jae Kyoung Kim ,  Eun Jin Sung ,  Seong Ryong Lee

IPC: G09G3/20 ,  G06K9/00 ,  G02F1/133

Abstract: A display deice is provided including a substrate. The substrate includes a display region that includes a plurality of pixels and a sensing region provided in at least one region of the display region. A circuit element layer is disposed on the substrate, the circuit element layer includes a plurality of conductive layers. A light emitting element layer is provided on the circuit element layer. The light emitting element layer includes a plurality of light emitting elements. A sensor layer is disposed on the substrate. The sensor layer includes a plurality of photo sensor units each including sensor pixels. The photo sensor units are arranged in an irregular pattern in the sensing region.