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.

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.

公开(公告)号：US11127914B2

公开(公告)日：2021-09-21

申请号：US16903278

申请日：2020-06-16

Applicant: SAMSUNG DISPLAY CO., LTD.

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

IPC: H01L51/50 ,  H01L25/075 ,  H01L51/05 ,  H01L51/52 ,  H01L27/32 ,  H01L33/62 ,  F21Y107/00

Abstract: A light emitting device includes a plurality of unit light emitting regions on a substrate. At least one of the unit light emitting regions includes at least one pair of first and second electrodes that are spaced apart, at least one first bar-type LED in a first layer on the substrate, and at least one second bar-type LED in a second layer on the substrate. At least one of the first bar-type LED or the second bar-type LED is electrically connected between the first electrode and the second electrode.

公开(公告)号：US11088197B2

公开(公告)日：2021-08-10

申请号：US16881788

申请日：2020-05-22

Applicant: Samsung Display Co., Ltd.

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

IPC: 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：US11004892B2

公开(公告)日：2021-05-11

申请号：US16275794

申请日：2019-02-14

Applicant: Samsung Display Co., Ltd.

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

IPC: H01L27/15 ,  H01L33/50 ,  H01L33/60

Abstract: A display device includes a first pixel and a second pixel; a light emitting layer; a color conversion layer on the light emitting layer; and a color filter layer on the color conversion layer, the light emitting layer including one or more light emitting elements in the first pixel and the second pixel, the color conversion layer including a first color conversion layer in the first pixel and a second color conversion layer in the second pixel. The color filter layer includes a first color filter layer in the first pixel and a second color filter layer in the second pixel, the light emitting elements capable of emitting a first light having a first wavelength, each of the first color conversion layer and the second color conversion layer including first color conversion particles and second color conversion particles.

公开(公告)号：US10937369B2

公开(公告)日：2021-03-02

申请号：US16681265

申请日：2019-11-12

Applicant: Samsung Display Co., Ltd.

Inventor： Chul Kyu Kang ,  Dae Hyun Kim ,  Sung Hwan Kim ,  Soo Hee Oh ,  Dong Sun Lee ,  Sang Moo Choi

IPC: G09G3/3258

Abstract: Provided herein may be a stage and an emission control driver having the same. The stage may include an output unit configured to supply a voltage of a first or second power supply to a first output terminal depending on voltages of first and second nodes, an input unit configured to control the voltages of the second node and a third node, a first signal processing unit configured to control the voltage of the first node, and supply a voltage corresponding to the first node to a second output terminal, a second signal processing unit including a second capacitor coupled between the third node and a fifth node, the second signal processing unit being configured to control the voltage of the first node, and control a potential difference between opposite terminals of the second capacitor, and a third signal processing unit configured to control the voltage of the second node.

公开(公告)号：US10862000B2

公开(公告)日：2020-12-08

申请号：US16274109

申请日：2019-02-12

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jung Hong Min ,  Dae Hyun Kim ,  Seung A Lee ,  Hyun Min Cho ,  Jong Hyuk Kang ,  Dong Uk Kim ,  Hyun Deok Im ,  Hyung Rae Cha

IPC: H01L33/00 ,  H01L27/15 ,  H01L33/32 ,  H01L21/302

Abstract: A light emitting element, a method of manufacturing a light emitting element, and a display device including a light emitting element are provided. A method of manufacturing a light emitting element includes: preparing a lower panel including a substrate and a first sub conductive semiconductor layer on the substrate; forming a first mask layer including at least one mask pattern on at least a part of the lower panel to be spaced apart from each other and an opening region in which the mask patterns are spaced apart from each other; laminating a first conductive semiconductor layer, an active material layer, and a second conductive semiconductor layer on the first mask layer to form an element laminate; etching the element laminate in a vertical direction to form an element rod; and removing the mask pattern to separate the element rod from the lower panel.

公开(公告)号：US10714701B2

公开(公告)日：2020-07-14

申请号：US16273694

申请日：2019-02-12

Applicant: SAMSUNG DISPLAY CO., LTD.

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

IPC: H01L51/50 ,  H01L33/62 ,  H01L25/075 ,  H01L51/05 ,  H01L51/52 ,  H01L27/32 ,  F21Y107/00

Abstract: A light emitting device includes a plurality of unit light emitting regions on a substrate. At least one of the unit light emitting regions includes at least one pair of first and second electrodes that are spaced apart, at least one first bar-type LED in a first layer on the substrate, and at least one second bar-type LED in a second layer on the substrate. At least one of the first bar-type LED or the second bar-type LED is electrically connected between the first electrode and the second electrode.