公开(公告)号：US20210193885A1

公开(公告)日：2021-06-24

申请号：US17195428

申请日：2021-03-08

Applicant: Samsung Display Co., Ltd.

Inventor： Hyun Deok Im ,  Jong Hyuk Kang ,  Dae Hyun Kim ,  Joo Yeol Lee ,  Hyun Min Cho

IPC: H01L33/52 ,  H01L33/56 ,  H01L33/48 ,  H01L33/38 ,  H01L25/075 ,  H01L33/58

Abstract: A light emitting device includes: a base substrate; a plurality of unit regions provided on the base substrate; a barrier disposed at a boundary of the unit regions to surround each of the unit regions; a dam disposed in each of the unit regions to be spaced apart from the barrier; a first electrode provided in each of unit light emitting regions surrounded by the dam; a second electrode disposed in each of the unit light emitting regions, the second electrode of which at least one region is provided opposite to the first electrode; and one or more LEDs provided in each of the unit light emitting regions, the one or more LEDs being electrically connected between the first electrode and the second electrode.

公开(公告)号：US10944029B2

公开(公告)日：2021-03-09

申请号：US16805880

申请日：2020-03-02

Applicant: Samsung Display Co., Ltd.

Inventor： Hyun Deok Im ,  Jong Hyuk Kang ,  Dae Hyun Kim ,  Joo Yeol Lee ,  Hyun Min Cho

IPC: H01L33/52 ,  H01L33/38 ,  H01L33/48 ,  H01L33/56 ,  H01L33/58 ,  H01L25/075 ,  H01L25/16 ,  H01L27/12 ,  H01L33/20 ,  H01L33/32 ,  H01L33/54 ,  H01L33/62

Abstract: A light emitting device includes: a base substrate; a plurality of unit regions provided on the base substrate; a barrier disposed at a boundary of the unit regions to surround each of the unit regions; a dam disposed in each of the unit regions to be spaced apart from the barrier; a first electrode provided in each of unit light emitting regions surrounded by the dam; a second electrode disposed in each of the unit light emitting regions, the second electrode of which at least one region is provided opposite to the first electrode; and one or more LEDs provided in each of the unit light emitting regions, the one or more LEDs being electrically connected between the first electrode and the second electrode.

公开(公告)号：US10269865B2

公开(公告)日：2019-04-23

申请号：US16018054

申请日：2018-06-26

Applicant: Samsung Display Co., Ltd.

Inventor： Jong Hyuk Kang ,  Hyun Min Cho ,  Dae Hyun Kim ,  Joo Yeol Lee ,  Hyun Deok Im

IPC: H01J1/62 ,  H01L27/15 ,  H01L33/00 ,  H01L33/40 ,  F21K9/68 ,  H01L25/075 ,  H01L33/60 ,  H01L33/62

Abstract: A light-emitting device includes: a substrate; a unit light-emitting area disposed on the substrate; first and second electrodes disposed in the unit light-emitting area to be separated from each other; a plurality of rod-shaped LEDs disposed between the first and second electrodes; a reflective contact electrode disposed on opposite ends of the rod-shaped LEDs to electrically connect the rod-shaped LEDs to the first and second electrodes; and a light-transmitting structure disposed between the first and second electrodes and extending to cross the rod-shaped LEDs.

公开(公告)号：US12176462B2

公开(公告)日：2024-12-24

申请号：US17411793

申请日：2021-08-25

Applicant: Samsung Display Co., LTD.

Inventor： Ock Soo Son ,  Dae Hyun Kim

IPC: H01L33/38 ,  H01L27/15

Abstract: A pixel may include first and second electrodes that are spaced apart from each other in a first direction, the first and second electrodes each extending in a second direction intersecting the first direction; and light emitting elements disposed between the first and second electrodes. The first electrode may include at least one (1-1)th electrode extending in a third direction inclined with respect to one of the first and second directions, and at least one (1-2)th electrode extending in a fourth direction intersecting the third direction. The second electrode may include at least one (2-1)th electrode extending in the third direction and at least one (2-2)th electrode extending in the fourth direction.

公开(公告)号：US12074171B2

公开(公告)日：2024-08-27

申请号：US17422426

申请日：2019-07-09

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Won Sik Oh ,  Yo Han Lee ,  Hyun Min Cho ,  Jong Hyuk Kang ,  Dae Hyun Kim

IPC: H01L27/12 ,  H01L25/16 ,  H01L23/00 ,  H01L33/62

CPC classification number: H01L27/124 ,  H01L25/167 ,  H01L24/24 ,  H01L24/95 ,  H01L33/62 ,  H01L2224/24147 ,  H01L2224/95145 ,  H01L2924/12041

Abstract: A display device may include a pixel disposed in a display area. The pixel may include: a first electrode extending in a first direction; a second electrode including a first electrode part spaced apart from the first electrode in a direction intersecting with the first direction and extending in the first direction, a second electrode part extending from the first electrode part in a second direction, and a third electrode part extending form the second electrode part in the first direction; a third electrode including at least one area spaced apart from the third electrode part in the direction intersecting with the first direction and extending in the first direction; a first light emitting element connected between the first electrode and the second electrode; and a second light emitting element connected between the second electrode and the third electrode.

公开(公告)号：US12046625B2

公开(公告)日：2024-07-23

申请号：US17265799

申请日：2019-01-14

Applicant: Samsung Display Co., Ltd.

Inventor： Jung Hong Min ,  Dae Hyun Kim ,  Hyun Min Cho ,  Dong Uk Kim ,  Dong Eon Lee ,  Seung A Lee ,  Hyung Rae Cha

IPC: H01L33/12 ,  H01L27/15 ,  H01L33/00 ,  H01L33/22 ,  H01L33/38 ,  H01L33/40

CPC classification number: H01L27/156 ,  H01L33/0095 ,  H01L33/12 ,  H01L33/22 ,  H01L33/38 ,  H01L33/40

Abstract: Provided are a light-emitting element, a manufacturing method thereof, and a display device comprising the light-emitting element. The method for manufacturing the light-emitting element comprises the steps of: preparing a lower substrate including a substrate and a buffer material layer formed on the substrate, forming a separating layer disposed on the lower substrate and including at least one graphene layer, forming an element deposition structure by depositing a first conductivity type semiconductor layer, an active material layer, and a second conductivity type semiconductor layer on the separating layer, forming an element rod by etching the element deposition structure and the separating layer in a vertical direction; and separating the element rod from the lower substrate to form a light emitting element.

公开(公告)号：US11983350B2

公开(公告)日：2024-05-14

申请号：US17255987

申请日：2018-09-21

Applicant: Samsung Display Co., LTD.

Inventor： Jong Hyuk Kang ,  Hyun Min Cho ,  Dae Hyun Kim ,  Hyun Deok Im

IPC: H01L25/075 ,  G06F3/01 ,  G06F3/041 ,  G06F3/04883 ,  H01L27/12 ,  H01L33/50 ,  H01L33/58 ,  H01L33/62 ,  B82Y20/00

CPC classification number: G06F3/0414 ,  G06F3/016 ,  G06F3/0412 ,  G06F3/04883 ,  H01L25/0753 ,  H01L27/1214 ,  H01L33/502 ,  H01L33/505 ,  H01L33/58 ,  H01L33/62 ,  B82Y20/00 ,  G06F2203/014 ,  H01L2933/0066

Abstract: A display device comprises first and second pixels, a light-emitting layer, color conversion layers, and color filter layers, the light-emitting layer comprising first and second light-emitting elements in the first and second pixels, wherein the color conversion layers comprise first and second color conversion layers in the first and second pixels, the color filter layers comprise first and second color filter layers in the first and second pixels, the first and second light-emitting elements emit first light having a central wavelength range of a first wavelength, the first and second color conversion layers contain color conversion particles converting the first light into second light having a central wavelength range of a second wavelength longer than the first wavelength, the first color filter layer transmits the first light and blocks the second light, and the second color filter layer transmits the second light and blocks transmission of the first light.

公开(公告)号：US11949045B2

公开(公告)日：2024-04-02

申请号：US17290682

申请日：2019-05-27

Applicant: Samsung Display Co., Ltd.

Inventor： Hyun Min Cho ,  Jung Hong Min ,  Dae Hyun Kim ,  Dong Uk Kim ,  Jae Hoon Jung

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

CPC classification number: H01L33/44 ,  H01L27/156 ,  H01L33/0093 ,  H01L33/24 ,  H01L2933/0025

Abstract: Provided are a light-emitting diode structure and a light-emitting diode manufacturing method. The light-emitting diode manufacturing method comprises the operations of:



preparing a lower substrate, which includes a substrate and a separation layer formed on the substrate, and preparing at least one semiconductor rod, which is formed on the separation layer, forming a rod structure, which includes a rod protecting layer formed on the separation layer to surround the at least one semiconductor rod and an auxiliary layer formed on at least part of the rod protecting layer and separating the rod structure from the lower substrate by removing the separation layer, and separating the at least one semiconductor rod from the rod structure.

公开(公告)号：US11811012B2

公开(公告)日：2023-11-07

申请号：US17843314

申请日：2022-06-17

Applicant: Samsung Display Co., Ltd.

Inventor： Dae Hyun Kim ,  Hyun Min Cho ,  Hyun Deok Im ,  Jong Hyuk Kang ,  Keun Kyu Song ,  Joo Yeol Lee ,  Bek Hyun Lim ,  Sung-Chan Jo

IPC: H01L33/62 ,  H01L25/075 ,  H01L25/16 ,  H01L27/12 ,  H01L33/38 ,  H01L33/24 ,  H01L33/60

CPC classification number: H01L33/62 ,  H01L25/0753 ,  H01L25/167 ,  H01L27/1259 ,  H01L33/38 ,  H01L33/24 ,  H01L33/60 ,  H01L2933/0016 ,  H01L2933/0066

Abstract: A light emitting device may include: a substrate including a plurality of unit light emitting regions; and first to fourth insulating layers sequentially on the substrate. Each of the unit light emitting regions may include: at least one light emitting element on the first insulating layer, the at least one light emitting element having a first end portion and a second end portion in a length direction thereof; first and second partition walls on the substrate, and the first and second partition walls being spaced apart from each other; a first reflective electrode on the first partition wall and a second reflective electrode on the second partition wall; a first contact electrode on the first reflective electrode, the first contact electrode connecting the first reflective electrode and the first end portion of the light emitting element; a second contact electrode on the second reflective electrode, the second contact electrode connecting the second reflective electrode and the second end portion of the light emitting element; and a conductive pattern provided between the first insulating layer and the first contact electrode, the conductive pattern surrounding the first and second reflective electrodes when viewed on a plane.

公开(公告)号：US20230187474A1

公开(公告)日：2023-06-15

申请号：US18166985

申请日：2023-02-09

Applicant: Samsung Display Co., LTD.

Inventor： Dae Hyun Kim ,  Jong Hyuk Kang ,  Joo Yeol Lee ,  Hyun Deok Im ,  Hyun Min Cho

IPC: H01L27/15 ,  H01L33/44 ,  H01L33/20 ,  H01L27/12 ,  H01L33/38 ,  H01L29/786 ,  H01L25/075 ,  H01L25/16 ,  H01L33/60

CPC classification number: H01L27/156 ,  H01L33/44 ,  H01L33/20 ,  H01L27/124 ,  H01L33/387 ,  H01L29/78633 ,  H01L25/0753 ,  H01L25/167 ,  H01L27/1255 ,  H01L33/385 ,  H01L33/60 ,  H01L33/405

Abstract: A light emitting device, includes: a substrate; a light emitting element on the substrate, the light emitting element having a first end portion and a second end portion arranged in a longitudinal direction; one or more partition walls disposed on the substrate, the one or more partition walls being spaced apart from the light emitting element; a first reflection electrode adjacent the first end portion of the light emitting element; a second reflection electrode adjacent the second end portion of the light emitting element; a first contact electrode connected to the first reflection electrode and the first end portion of the light emitting element; an insulating layer on the first contact electrode, the insulating layer having an opening exposing the second end portion of the light emitting element and the second reflection electrode to the outside; and a second contact electrode on the insulating layer.