公开(公告)号：US12021170B2

公开(公告)日：2024-06-25

申请号：US17261370

申请日：2019-01-18

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Xinxing Li ,  Tae Jin Kong ,  Myeong Hee Kim ,  Je Won Yoo ,  Hyun Deok Im ,  Baek Hyeon Lim

IPC: H01L33/38 ,  H01L25/075 ,  H01L33/20 ,  H01L33/44

CPC classification number: H01L33/38 ,  H01L25/0753 ,  H01L33/20 ,  H01L33/44 ,  H01L2933/0016

Abstract: A light emitting device may include: a substrate including emission areas; a first electrode disposed on the substrate, and a second electrode spaced apart from the first electrode; at least one light emitting element disposed on the substrate, and including a first end and a second end; an insulating layer disposed on the light emitting element and allowing the first and second ends of the light emitting element to be exposed; a first contact electrode electrically connecting the first electrode with the first end of the light emitting element; a second contact electrode electrically connecting the second electrode with the second end of the light emitting element; and a passivation pattern disposed on each of the first and second contact electrodes. The first and second contact electrodes may be disposed on the insulating layer and spaced apart from each other and may be electrically separated from each other.

公开(公告)号：US11728196B2

公开(公告)日：2023-08-15

申请号：US17191018

申请日：2021-03-03

Applicant: Samsung Display Co., Ltd.

Inventor： Won Ho Lee ,  Buem Joon Kim ,  Jong Hyuk Kang ,  Hyun Deok Im ,  Chung Sic Choi

IPC: H01L21/68 ,  H01L21/67 ,  H01L23/00 ,  B41J2/095 ,  H01L25/075

CPC classification number: H01L21/68 ,  H01L21/6715 ,  H01L24/75 ,  H01L25/0753 ,  B41J2/095 ,  H01L2224/759 ,  H01L2224/75251 ,  H01L2224/75252 ,  H01L2224/75283 ,  H01L2224/75501 ,  H01L2224/75655 ,  H01L2224/75701 ,  H01L2924/12041

Abstract: An apparatus for aligning dipoles is provided. The apparatus includes: an electric field forming unit including a stage and a probe unit, the probe unit being configured to form an electric field on the stage; an inkjet printing device including an inkjet head, the inkjet head being configured to spray ink including a solvent and dipoles dispersed in the solvent onto the stage; a light irradiation device configured to irradiate light onto the stage; and a temperature control device including a temperature control unit, the temperature control unit being configured to control a temperature of the solvent sprayed on the stage.

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：US20190326474A1

公开(公告)日：2019-10-24

申请号：US16456821

申请日：2019-06-28

Applicant: Samsung Display Co., Ltd.

Inventor： Dae Hyun KIM ,  Jong Hyuk Kang ,  Joo Yeol Lee ,  Hyun Deok Im ,  Chi O Cho ,  Hyun Min Cho

IPC: H01L33/24 ,  H01L33/16 ,  H01L33/32 ,  H01L27/15 ,  H01L33/00 ,  H01L33/38 ,  H01L33/44

Abstract: A light emitting device including first and second electrodes spaced apart from each other on a substrate, at least one bar-type LED having a first end on the first electrode and a second end on the second electrode, and an insulative support body between the substrate and the bar-type LED. The at least one bar-type LED has a length greater than a width.

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：US12255223B2

公开(公告)日：2025-03-18

申请号：US17640693

申请日：2020-08-24

Applicant: SAMSUNG DISPLAY CO., LTD.

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

IPC: H01L27/15 ,  H01L33/00 ,  H01L33/24 ,  H01L33/38 ,  H01L33/44

Abstract: A display device includes a pixel in a display area. The pixel includes: spaced apart first and second electrodes; a first insulating layer on the first electrode and the second electrode and between the first electrode and the second electrode and having a first etch selectivity; a first insulating pattern on the first insulating layer between the first electrode and the second electrode, and having a second etch selectivity; a light emitting element on the first insulating pattern; a second insulating pattern having the second etch selectivity and being on one area of the light emitting element such that a first end and the second end of the light emitting element are exposed; and third and fourth electrodes configured to electrically connect the first end and the second end of the light emitting element to the first and second electrodes, respectively.

公开(公告)号：US12243953B2

公开(公告)日：2025-03-04

申请号：US17255795

申请日：2019-02-07

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jong Hyuk Kang ,  Won Ho Lee ,  Hyun Deok Im ,  Young Hoi Kim ,  Jin Young Kim ,  Hyun Min Cho ,  Hae Yun Choi

IPC: H01L33/00 ,  H01L25/075

Abstract: An apparatus for manufacturing a light emitting display device includes a stage, and at least one electric-field application module disposed on at least one side of the stage. The apparatus further includes at least one of: at least one printing head disposed above the stage, and a heating element disposed adjacent the stage. The at least one electric-field application module includes a probe head having at least one probe pin, and a driver connected to the probe head to move the probe head.

公开(公告)号：US12183854B2

公开(公告)日：2024-12-31

申请号：US17411664

申请日：2021-08-25

Applicant: Samsung Display Co., LTD.

Inventor： Buem Joon Kim ,  Won Ho Lee ,  Hyun Deok Im ,  Jong Hyuk Kang ,  Eun A Cho

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

Abstract: A display device comprises a substrate, a first electrode and a second electrode disposed on the substrate, a first insulating layer disposed on the first electrode and the second electrode, first light emitting elements disposed on the first insulating layer, a first connection electrode disposed on the first electrode to contact first ends of the first light emitting elements and a second connection electrode disposed on the second electrode to contact second ends of the first light emitting elements, a second insulating layer disposed on the first light emitting elements, the first connection electrode and the second connection electrode, second light emitting elements disposed on the second insulating layer, a third connection electrode disposed on the first connection electrode to contact first ends of the second light emitting elements, and a fourth connection electrode disposed on the second connection electrode to contact second ends of the second light emitting elements.

公开(公告)号：US12119372B2

公开(公告)日：2024-10-15

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: H01L33/38 ,  H01L25/075 ,  H01L25/16 ,  H01L27/12 ,  H01L27/15 ,  H01L29/786 ,  H01L33/20 ,  H01L33/44 ,  H01L33/60 ,  H01L33/06 ,  H01L33/32 ,  H01L33/40 ,  H01L33/62

CPC classification number: H01L27/156 ,  H01L25/0753 ,  H01L25/167 ,  H01L27/124 ,  H01L27/1255 ,  H01L29/78633 ,  H01L33/20 ,  H01L33/385 ,  H01L33/387 ,  H01L33/44 ,  H01L33/60 ,  H01L33/06 ,  H01L33/32 ,  H01L33/405 ,  H01L33/62 ,  H01L2933/0016 ,  H01L2933/0058 ,  H01L2933/0066

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.