公开(公告)号：US20220352238A1

公开(公告)日：2022-11-03

申请号：US17559462

申请日：2021-12-22

Applicant: Samsung Display Co., LTD.

Inventor： Su Jeong KIM ,  Young Jin SONG ,  Jin Wan KIM ,  Dae Ho SONG ,  Jin Woo CHOI ,  Sang Jo KIM ,  Hoo Keun PARK ,  Byung Ju LEE ,  Seung Geun LEE

IPC: H01L27/15 ,  H01L33/00 ,  H01L33/50 ,  H01L33/60

Abstract: A display device includes light-emitting elements disposed on a substrate, wherein each of the light-emitting elements includes a first semiconductor layer, an active layer disposed on the first semiconductor layer, a second semiconductor layer disposed on the active layer, and a porous layer disposed on the second semiconductor layer.

公开(公告)号：US20220069162A1

公开(公告)日：2022-03-03

申请号：US17423455

申请日：2019-11-25

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Young Rag DO ,  Hye Lim KANG ,  Hoo Keun PARK

IPC: H01L33/20 ,  H01L33/00 ,  H01L33/38 ,  H01L27/15

Abstract: A method for manufacturing a light-emitting element, and a display device including a light-emitting element are provided. A method for manufacturing a light-emitting element includes: preparing a base substrate and at least one semiconductor rod formed on the base substrate; a first separating including forming a first element structure, which includes a semiconductor rod of the at least one semiconductor rod and a first support formed around the outer surface of the semiconductor rod, and separating the first element structure from the base substrate; removing at least a part of the first support so as to partially expose the semiconductor rod, and forming a second element structure which includes the exposed semiconductor rod and a second support around the outer surface of the first support; and a second separating including separating the semiconductor rod from the second element structure.

公开(公告)号：US20220069005A1

公开(公告)日：2022-03-03

申请号：US17423450

申请日：2019-11-25

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Young Rag DO ,  Hoo Keun PARK

IPC: H01L27/15 ,  H01L33/24 ,  H01L33/38 ,  H01L33/44 ,  H01L33/58

Abstract: Provided are a light emitting element and a display device comprising same. The light emitting element comprises: a first conductivity type semiconductor doped with a dopant having a first polarity, a second conductivity type semiconductor doped with a dopant having a second polarity opposite to the first polarity; an active layer between the first conductivity type semiconductor and the second conductivity type semiconductor; and an insulation film which surrounds at least a side surface of the active layer, wherein the insulation film includes an insulation coating film and at least one light conversion particle on at least a portion of the insulation coating film.

公开(公告)号：US20250160093A1

公开(公告)日：2025-05-15

申请号：US19004023

申请日：2024-12-27

Applicant: Samsung Display Co., LTD.

Inventor： Young Rag DO ,  Hoo Keun PARK

IPC: H10H29/14 ,  H10H20/80 ,  H10H20/821 ,  H10H20/831 ,  H10H20/84 ,  H10H20/855

Abstract: Provided are a light emitting element and a display device comprising same. The light emitting element comprises: a first conductivity type semiconductor doped with a dopant having a first polarity; a second conductivity type semiconductor doped with a dopant having a second polarity opposite to the first polarity; an active layer between the first conductivity type semiconductor and the second conductivity type semiconductor; and an insulation film which surrounds at least a side surface of the active layer, wherein the insulation film includes an insulation coating film and at least one light conversion particle on at least a portion of the insulation coating film.

公开(公告)号：US20240063337A1

公开(公告)日：2024-02-22

申请号：US18344504

申请日：2023-06-29

Applicant: Samsung Display Co., LTD.

Inventor： Su Jeong KIM ,  Sang Jo KIM ,  Jin Wan KIM ,  Hoo Keun PARK

IPC: H01L33/18 ,  H01L33/10 ,  H01L33/08 ,  H01L33/06 ,  H01L33/14 ,  H01L33/62

CPC classification number: H01L33/18 ,  H01L33/10 ,  H01L33/08 ,  H01L33/06 ,  H01L33/145 ,  H01L33/62

Abstract: A display device includes a substrate including a pixel circuit unit, a partition wall including a distributed Bragg reflector (DBR) structure partitioning a light-emitting area and a non-light-emitting area, and light-emitting elements above the substrate, corresponding to the light-emitting area, and including a first semiconductor layer, an active layer, and a porous semiconductor layer.

公开(公告)号：US20230223422A1

公开(公告)日：2023-07-13

申请号：US17969104

申请日：2022-10-19

Applicant: Samsung Display Co., LTD.

Inventor： Sang Jo KIM ,  Hoo Keun PARK ,  Young Jin SONG

IPC: H01L27/15 ,  H01L33/24 ,  H01L33/18 ,  H01L33/32 ,  H01L33/44 ,  H01L33/00

CPC classification number: H01L27/156 ,  H01L33/007 ,  H01L33/18 ,  H01L33/24 ,  H01L33/44 ,  H01L33/325

Abstract: A display device includes first banks spaced apart from one another and disposed on a substrate; a first electrode and a second electrode, each disposed on one of the first banks to cover each respective first bank and spaced apart from each other; and a light-emitting element disposed between the first electrode and the second electrode. The light-emitting element includes an active layer, the active layer is in a non-polarized state, and the active layer includes cubic gallium nitride (c-GaN).

公开(公告)号：US20230197888A1

公开(公告)日：2023-06-22

申请号：US18081985

申请日：2022-12-15

Applicant: Samsung Display Co., LTD.

Inventor： Hoo Keun PARK ,  Jin Wan KIM ,  Seung Geun LEE

IPC: H01L33/04 ,  H01L33/00 ,  H01L33/38 ,  H01L21/311

CPC classification number: H01L33/04 ,  H01L33/0075 ,  H01L33/38 ,  H01L21/31144 ,  B82Y40/00

Abstract: Provided herein is a light emitting element and a method of fabricating the light emitting element. The light emitting element includes a first semiconductor layer, a first insulating film disposed on the first semiconductor layer, the first insulating film including a nano-pattern, an active layer disposed in the nano-pattern of the first insulating film, and a second semiconductor layer disposed on the active layer in the nano-pattern of the first insulating film.

公开(公告)号：US20220173158A1

公开(公告)日：2022-06-02

申请号：US17520227

申请日：2021-11-05

Applicant: Samsung Display Co., Ltd.

Inventor： Seung Geun LEE ,  Byung Ju LEE ,  Hoo Keun PARK ,  Chul Jong YOO ,  Dong Eon LEE

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

Abstract: A display device includes a first subpixel and a second subpixel, wherein the first subpixel includes a first light source unit including a plurality of first light-emitting elements configured to emit first light having a center wavelength of a first wavelength, the second subpixel includes a second light source unit including a plurality of second light-emitting elements configured to emit second light having a center wavelength of a second wavelength, the first light source unit includes first to nth light-emitting groups that are connected in series, each of the groups including the plurality of first light-emitting elements, the second light source unit includes first to mth light-emitting groups that are connected in series and each of the groups includes the plurality of second light-emitting elements, where n and m are natural numbers, and the second wavelength is different from the first wavelength.

公开(公告)号：US20220140019A1

公开(公告)日：2022-05-05

申请号：US17452538

申请日：2021-10-27

Applicant: Samsung Display Co., Ltd.

Inventor： Hoo Keun PARK ,  Seung Geun LEE ,  Won Sik OH ,  Byung Ju LEE ,  Seung A LEE

IPC: H01L27/32

Abstract: A display device includes a first substrate including a plurality of subpixels; a first electrode and a second electrode on the first substrate in each of the plurality of subpixels and spaced apart from each other; a plurality of light emitting elements having both ends on the first electrode and the second electrode, respectively; and a color control layer on the plurality of light emitting elements. The plurality of subpixels includes a first subpixel to display a first color and a second subpixel to display a second color different from the first color, and the plurality of light emitting elements includes first light emitting elements in the first subpixel and to emit light of a third color and second light emitting elements in the second subpixel and to emit light of the second color, wherein the third color is different from the first color and the second color.

公开(公告)号：US20220109023A1

公开(公告)日：2022-04-07

申请号：US17474688

申请日：2021-09-14

Applicant: Samsung Display Co., LTD.

Inventor： Byung Ju LEE ,  Seung Geun LEE ,  Hoo Keun PARK ,  Won Sik OH ,  Seung A. LEE

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

Abstract: A display device includes a first electrode and a second electrode spaced apart from each other and disposed on a substrate, a light emitting element extending in a first direction and including a first end disposed on the first electrode in the first direction and a second end disposed on the second electrode in the first direction. A diameter of the first end of the light emitting element is different from a diameter of the second end of the light emitting element. The light emitting element includes a first semiconductor layer, a second semiconductor layer spaced apart from the first semiconductor layer, and an active layer disposed between the first semiconductor layer and the second semiconductor layer. The active layer is adjacent to one of the first end and the second end of the light emitting element, which has a larger diameter than a diameter of the other.