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：US12051682B2

公开(公告)日：2024-07-30

申请号：US17225466

申请日：2021-04-08

Applicant: Samsung Display Co., Ltd.

Inventor： Seung Lyong Bok ,  An Na Ryu ,  Jin Oh Kwag

IPC: H01L25/16 ,  G06F3/041 ,  G06F3/044 ,  H01L25/18 ,  H01L33/62 ,  H10K59/123 ,  H10K59/40

CPC classification number: H01L25/167 ,  G06F3/0412 ,  G06F3/044 ,  H01L25/18 ,  H10K59/123 ,  H10K59/40 ,  H01L33/62

Abstract: A display device includes: a display panel including a first display area including first sub-pixels to display an image, and a second display area including second sub-pixels and a transmission area adjacent to the second sub-pixels; and an optical device overlapping the second display area of the display panel and configured to detect light incident through the transmission area. Each of the second sub-pixels includes: a first contact electrode; a second contact electrode located apart from the first contact electrode; and a light emitting element between the first contact electrode and the second contact electrode.

公开(公告)号：US12047761B2

公开(公告)日：2024-07-23

申请号：US18084288

申请日：2022-12-19

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 ,  G06V10/10 ,  G06V40/13 ,  H01L27/12 ,  H01L31/105 ,  H01L31/12 ,  H04R7/04 ,  H10K50/80 ,  H10K50/844 ,  H10K50/856 ,  H10K59/122 ,  H10K59/65 ,  G06F3/045 ,  H04R1/02

CPC classification number: H04R7/04 ,  G06F3/0412 ,  G06F3/0443 ,  G06F3/046 ,  G06V10/17 ,  G06V40/1306 ,  G06V40/1318 ,  H01L27/1214 ,  H01L31/1055 ,  H01L31/12 ,  H10K50/844 ,  H10K50/856 ,  H10K50/868 ,  H10K59/122 ,  H10K59/65 ,  G06F3/045 ,  G06F2203/04105 ,  G06F2203/04107 ,  H04R1/025 ,  H04R2499/15

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：US12033988B2

公开(公告)日：2024-07-09

申请号：US17382825

申请日：2021-07-22

Applicant: Samsung Display Co., LTD.

Inventor： In Hyuk Kim ,  Dong Gyun Kim ,  Jae Hoon Jung ,  Jin Oh Kwag ,  Hee Yeon Yoo ,  Sung Chan Jo ,  Jeong In Choi ,  Hye Jung Hong ,  Jong Hyuk Kang ,  Dong Eon Lee ,  Hyun Min Cho

IPC: H01L25/075 ,  H01L21/68 ,  H01L21/78 ,  H01L33/00

CPC classification number: H01L25/0753 ,  H01L21/68 ,  H01L21/7806 ,  H01L33/005

Abstract: An apparatus includes a base including a receiving portion that receives a substrate on which semiconductor elements are disposed; and at least one ultrasonic generator that generates and applies ultrasonic waves to the substrate placed in the base.

公开(公告)号：US12017453B2

公开(公告)日：2024-06-25

申请号：US17802897

申请日：2020-06-08

Applicant: Samsung Display Co., LTD.

Inventor： Jong Hyuk Kang ,  Jin Oh Kwag ,  Won Hee Nam ,  Suk Beom You ,  Hyun Min Cho

IPC: B41J2/045 ,  B41J2/11 ,  B41J2/14 ,  B41J2/175

CPC classification number: B41J2/04593 ,  B41J2/11 ,  B41J2/14 ,  B41J2/17596 ,  B41J2002/14491

Abstract: Provided are an inkjet printing device, a method for printing bipolar elements, and a method for manufacturing a display device. The inkjet printing device includes an inkjet head disposed above a stage and including a plurality of nozzles through which ink including bipolar elements each having areas doped with partially different polarities is discharged; an actuator disposed in the inkjet head and adjusting an amount of droplet of the ink discharged through the plurality of nozzles; and at least one sensing part disposed in the inkjet head and measuring a number of bipolar elements discharged through the plurality of nozzles.

公开(公告)号：US11997913B2

公开(公告)日：2024-05-28

申请号：US18210653

申请日：2023-06-16

Applicant: Samsung Display Co., Ltd.

Inventor： Min Ho Moon ,  Jin Oh Kwag ,  Seung Yong Song ,  Duck Jung Lee ,  Seul Lee ,  Sung Soon Im

IPC: H01L51/56 ,  C23C14/04 ,  H10K71/00 ,  H10K71/16

CPC classification number: H10K71/166 ,  C23C14/042 ,  H10K71/00

Abstract: A deposition mask for making a display device, the deposition mask includes: a frame including a first opening; a first member disposed above the first opening of the frame and including a first portion surrounding at least one second opening and a second portion disposed in the second opening and physically separated from the first portion; and a second member disposed on the first member and including a first connecting portion connected to the frame and a second mesh portion overlapping the second portion.

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：US11790837B2

公开(公告)日：2023-10-17

申请号：US17878515

申请日：2022-08-01

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jin Oh Kwag ,  Won Sik Oh ,  Keun Kyu Song ,  Sung-Chan Jo ,  Hyun Min Cho

IPC: G09G3/32 ,  H01L27/15

CPC classification number: G09G3/32 ,  G09G2300/0426 ,  G09G2300/0809 ,  G09G2310/08 ,  G09G2320/0673 ,  H01L27/156

Abstract: A pixel includes first and second sub-emission areas enclosed by a bank; a first light source unit disposed in the first sub-emission area, and including at least one first light emitting element connected between at least one first split electrode and a second power supply; a second light source unit disposed in the second sub-emission area, and including at least one second light emitting element connected between at least one second split electrode and the second power supply; a first driving circuit connected between a first power supply and the at least one first split electrode, and supplying a first driving current to the first light source unit in response to a first data signal; and a second driving circuit connected between the first power supply and the second split electrode, and supplying a second driving current to the second light source unit in response to a second data signal.

公开(公告)号：US11711961B2

公开(公告)日：2023-07-25

申请号：US17732252

申请日：2022-04-28

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Ji Hun Ryu ,  Jin Oh Kwag

IPC: G09G5/00 ,  H10K59/60 ,  G06F3/041 ,  G06V40/13 ,  H10K50/86 ,  H10K59/122 ,  H10K59/35

CPC classification number: H10K59/60 ,  G06F3/0412 ,  G06V40/1318 ,  H10K50/865 ,  H10K59/122 ,  H10K59/351

Abstract: A fingerprint sensor includes: a substrate; a circuit element layer on a first surface of the substrate and including a plurality of conductive layers; a light emitting element layer on the circuit element layer and including light emitting elements and a light shielding layer; and a light sensor layer on a second surface of the substrate and including light sensors, wherein the light shielding layer includes contact holes exposing first electrodes of the light emitting elements, and first opening portions exposing a portion of the circuit element layer, and the circuit element layer includes second opening portions formed in the plurality of conductive layers and includes a light transmission hole of which at least a portion overlaps the first opening portions.

公开(公告)号：US11411044B2

公开(公告)日：2022-08-09

申请号：US16338449

申请日：2018-09-21

Applicant: Samsung Display Co., Ltd.

Inventor： Hyun Min Cho ,  Dae Hyun Kim ,  Jin Oh Kwag ,  Dong Hyun Kim ,  Keun Kyu Song ,  Hyun Deok Im ,  Sung Chan Jo

IPC: H01L27/15 ,  H01L33/38 ,  H01L33/62

Abstract: A display device comprises a first electrode, a second electrode disposed to be spaced apart from the first electrode and face the first electrode, a first insulating layer disposed to cover the first electrode and the second electrode, a second insulating layer disposed on at least a part of the first insulating layer and exposing at a part of a region where the first electrode and the second electrode overlaps the first insulating layer and at least one light emitting element on the exposed first insulating layer between the first electrode and the second electrode, wherein the second insulating layer includes at least one opening exposing the first insulating layer and disposed to be spaced apart from each other on a region where the first electrode and the second electrode face each other, and a bridge portion between the openings, and the light emitting element is disposed on the opening.