公开(公告)号：US20220320365A1

公开(公告)日：2022-10-06

申请号：US17628981

申请日：2020-02-27

Applicant: Samsung Display Co., LTD.

Inventor： An Na RYU ,  Jin Oh KWAG ,  Sung Hoon KIM ,  Dong Ho LEE ,  Sung Chan JO

IPC: H01L33/00 ,  H01L27/15 ,  H01L33/24 ,  H01L33/44 ,  B41J2/06

Abstract: Provided are an inkjet printing device, a method for aligning a bipolar element, and a method for manufacturing a display device. The inkjet printing device is for ejecting ink and includes a bipolar element extending in one direction. The inkjet printing device comprises: an electric field generation unit which includes a stage and a probe unit for generating an electric field on the stage; and an inkjet head which is positioned above the stage and includes a plurality of nozzles through which the ink is ejected, wherein the nozzles includes an inlet having a first diameter and an outlet connected to the inlet and having a second diameter smaller than the first diameter.

公开(公告)号：US20220005797A1

公开(公告)日：2022-01-06

申请号：US17364042

申请日：2021-06-30

Applicant: Samsung Display Co., LTD.

Inventor： An Na RYU ,  Jin Oh KWAG ,  Dae Hyun KIM

IPC: H01L25/16 ,  H01L27/12 ,  H01L33/62

Abstract: A display device comprises a first substrate, a conductive layer including a first electrode on the first substrate, an interlayer insulating layer on the conductive layer, a via layer on the interlayer insulating layer and including a hole exposing a part of a top surface of the interlayer insulating layer, a second electrode spaced apart from the hole and on the via layer, light emitting elements inside the hole of the via layer, a first contact electrode electrically connected to the first electrode and a first end of the light emitting elements, and a second contact electrode on the via layer and electrically connected to a second end of the light emitting elements. At least a part of the light emitting elements are placed on an inner wall of the hole.

公开(公告)号：US20210408108A1

公开(公告)日：2021-12-30

申请号：US17294634

申请日：2019-03-14

Applicant: Samsung Display Co., Ltd.

Inventor： Jin Oh KWAG ,  Sung Hoon KIM ,  Eun Ju KIM

IPC: H01L27/15 ,  H01L33/24 ,  H01L33/38 ,  H01L33/44

Abstract: A pixel in accordance with an embodiment may include: a first electrode; a second electrode spaced from the first electrode; a plurality of light emitting elements arranged between the first electrode and the second electrode and including at least one first light emitting element; a first contact electrode on the first electrode and electrically connected to the first electrode and first ends of at least some of the plurality of light emitting elements; a second contact electrode on the second electrode and electrically connected to the second electrode and second ends of at least some of the plurality of light emitting elements; and at least one first conductive pattern between the at least one first light emitting element and the first contact electrode, and configured to electrically connect a first end of a corresponding first light emitting element to the first contact electrode.

公开(公告)号：US20210384179A1

公开(公告)日：2021-12-09

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 ,  H01L27/32 ,  H01L25/18 ,  G06F3/044 ,  G06F3/041

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：US20200381492A1

公开(公告)日：2020-12-03

申请号：US16875185

申请日：2020-05-15

Applicant: Samsung Display Co., Ltd.

Inventor： Ji Hun RYU ,  Jin Oh KWAG

IPC: H01L27/32 ,  G06K9/00 ,  H01L51/52 ,  G06F3/041

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：US20200258938A1

公开(公告)日：2020-08-13

申请号：US16784935

申请日：2020-02-07

Applicant: Samsung Display Co., Ltd.

Inventor： Chong Chul CHAI ,  Kyung Bae KIM ,  Mee Hye JUNG ,  Jin Oh KWAG ,  Min Jae JEONG

IPC: H01L27/15 ,  H01L27/12 ,  H01L33/62 ,  H01L49/02 ,  H01L23/552

Abstract: A display device includes: a substrate including a pixel; a scan line for supplying a scan signal to the pixel; a data line for supplying a data signal to the pixel; a first power line for supplying a first driving power source to the pixel; a second power line for supplying a second driving power source to the pixel; and a third power line for supplying a ground voltage to the pixel. The pixel includes: first and second electrodes spaced apart from each other on the substrate; a plurality of light emitting elements, each of the light emitting elements having first and second end portions in a length direction thereof and being arranged between the first electrode and the second electrode; and a first switch electrically connected between the third power line and the first electrode. The first switch is configured to be turned on by a control signal.

公开(公告)号：US20250107294A1

公开(公告)日：2025-03-27

申请号：US18585678

申请日：2024-02-23

Applicant: Samsung Display Co., LTD.

Inventor： Jin Oh KWAG ,  Dae Hyun KIM ,  Keun Kyu SONG ,  Sung Chan JO ,  Hyun Min CHO

IPC: H01L33/58 ,  H01L27/15 ,  H01L33/38 ,  H01L33/50

Abstract: A display device includes a first electrode and a second electrode that are spaced apart from and facing each other; a light-blocking layer disposed above the first electrode and the second electrode; and at least one light-emitting element disposed between the first electrode and the second electrode. The light-blocking layer includes a light-blocking portion absorbing light and an opening pattern. The light-blocking portion includes an area partially overlapping the first electrode and the second electrode. The at least one opening pattern exposes portions of the first and second electrodes facing each other and at least a portion of an area between the first and second electrodes facing each other. The at least one light-emitting element overlaps the at least one opening pattern.

公开(公告)号：US20240363806A1

公开(公告)日：2024-10-31

申请号：US18764922

申请日：2024-07-05

Applicant: Samsung Display Co., LTD.

Inventor： Dae Hyun KIM ,  Hyun Min CHO ,  Jin Oh KWAG ,  Keun Kyu SONG ,  Sung Chan JO

IPC: H01L33/38 ,  H01L27/15 ,  H01L33/00

CPC classification number: H01L33/382 ,  H01L27/156 ,  H01L33/005 ,  H01L2933/0016

Abstract: A display device includes a first electrode, a second electrode spaced apart from the first electrode to face the first electrode, a first insulation layer, at least one light emitting element, a second insulation layer, a first contact electrode, and a second contact electrode. The first insulation layer includes an overlapping area which overlaps the at least one light emitting element, a first non-overlapping area which extends outward from the first end of the at least one light emitting element and does not overlap the at least one light emitting element, and a second non-overlapping area which extends outward from the second end of the at least one light emitting element and does not overlap the at least one light emitting element.

公开(公告)号：US20230412956A1

公开(公告)日：2023-12-21

申请号：US18451271

申请日：2023-08-17

Applicant: Samsung Display Co., LTD.

Inventor： Young Seok SEO ,  Jung Hun NOH ,  Seung Lyong BOK ,  Yi Joon AHN ,  Sun Mi YU ,  Jin Oh KWAG

IPC: H04R1/02 ,  G06F3/041 ,  H04R3/00 ,  H10K59/65 ,  H10K59/40 ,  H10K59/12 ,  H10K50/87 ,  G06F3/044 ,  G06V40/13 ,  G09G3/3266 ,  G09G3/3233

CPC classification number: H04R1/028 ,  G09G3/3233 ,  H04R3/00 ,  H10K59/65 ,  H10K59/40 ,  H10K59/12 ,  H10K50/87 ,  G06F3/0446 ,  G06F2203/04105 ,  G06V40/1318 ,  G09G3/3266 ,  H04R2499/15 ,  G06V40/1306 ,  G06F2203/04107 ,  G06F3/0412

Abstract: A display device includes a display panel including a display layer including light-emitting elements disposed on a substrate, and a sensor electrode layer disposed on the display layer. The sensor electrode layer includes a first sound electrode and a second sound electrode; a vibration layer electrically contacting the first sound electrode and the second sound electrode and being deformed in response to a first sound driving voltage applied to the first sound electrode and a second sound driving voltage applied to the second sound electrode; and sensor electrodes disposed on the vibration layer. The sensor electrodes sense an input.

公开(公告)号：US20230047796A1

公开(公告)日：2023-02-16

申请号：US17786931

申请日：2020-06-05

Applicant: Samsung Display Co., LTD.

Inventor： An Na RYU ,  Jin Oh KWAG ,  Heung Cheol JEONG

IPC: B41J2/045 ,  B41J2/125 ,  B41J2/18

Abstract: An inkjet printing device includes a stage; an inkjet head disposed above the stage and comprising nozzles through which ink is discharged, the ink including bipolar elements extending in a direction; an ink circulation part which supplies the ink to the inkjet head, and to which the ink remaining after being discharged from the inkjet head is supplied; and at least one sensing part disposed between the inkjet head and the ink circulation part and sensing a number of the bipolar elements that are discharged through the nozzles.