公开(公告)号：US20230402493A1

公开(公告)日：2023-12-14

申请号：US18456069

申请日：2023-08-25

Applicant: Samsung Electronics Co., LTD.

Inventor： Junhee CHOI ,  Kiho Kong ,  Nakhyun Kim ,  Dongho Kim ,  Junghun Park ,  Jinjoo Park ,  Eunsung Lee ,  Joohun Han

IPC: H01L27/15

CPC classification number: H01L27/156

Abstract: A micro light-emitting display apparatus and a method of manufacturing the same are disclosed The micro light-emitting display apparatus includes a first semiconductor layer, an isolation structure provided on the first semiconductor layer and configured to define a plurality of sub-pixels each configured to emit light, a first light-emitting unit including a first active layer provided in a first sub-pixel among the plurality of sub-pixels, and a second semiconductor layer provided on the first active layer, and a second light-emitting unit including a rod semiconductor layer provided in a second sub-pixel among the plurality of sub-pixels, a second active layer provided on the rod semiconductor layer, and a third semiconductor layer provided on the second active layer. The first active layer is configured to emit blue light and the second active layer is configured to emit green light.

公开(公告)号：US20230197693A1

公开(公告)日：2023-06-22

申请号：US17946763

申请日：2022-09-16

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Kiho KONG ,  Junghun PARK ,  Eunsung LEE ,  Junhee CHOI

IPC: H01L25/075 ,  H01L33/62 ,  H01L33/38 ,  H01L33/00 ,  H01L33/50

CPC classification number: H01L25/0753 ,  H01L33/005 ,  H01L33/62 ,  H01L33/382 ,  H01L33/505 ,  H01L2933/0016 ,  H01L2933/0041 ,  H01L2933/0066

Abstract: A micro light-emitting device display apparatus and a method of manufacturing the same are provided. The micro light-emitting device display apparatus includes a display unit including an array of a plurality of micro light-emitting devices, a driving unit backplane, and a bonding structure formed on coupling surfaces, facing each other, of the display unit and the driving unit backplane, and electrically connecting the display unit to the driving unit backplane. The bonding structure includes a plurality of bonding pads on one of the coupling surfaces of the display unit and driving unit backplane, and a dot pad array formed on the other coupling surface in a two-dimensional array to cover the plurality of bonding pads and an area therebetween.

公开(公告)号：US20220416122A1

公开(公告)日：2022-12-29

申请号：US17529636

申请日：2021-11-18

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Junhee CHOI ,  Joohun Han ,  Nakhyun Kim ,  Joosung Kim

IPC: H01L33/20 ,  H01L33/42 ,  H01L33/16

Abstract: A nanorod light emitting device includes a semiconductor light emitting nanorod, and a passivation film surrounding a sidewall of the semiconductor light emitting nanorod and having insulating properties, wherein the passivation film includes an insulating crystalline material having a same crystal structure as a crystal structure of the semiconductor light emitting nanorod.

公开(公告)号：US20220384676A1

公开(公告)日：2022-12-01

申请号：US17883160

申请日：2022-08-08

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hoyoung AHN ,  Junhee CHOI ,  Kyungwook HWANG ,  Jinjoo PARK

IPC: H01L33/10 ,  H01L33/38 ,  H01L33/50

Abstract: A display device includes a substrate, an emission layer provided on the substrate and a reflective layer provided on the emission layer. The emission layer has an emission region that emits light, the reflective layer has a first opening, the emission region overlaps the first opening in a direction perpendicular to an upper surface of the substrate and a first width of the emission region is smaller than a second width of the first opening.

公开(公告)号：US20220069161A1

公开(公告)日：2022-03-03

申请号：US17227538

申请日：2021-04-12

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jinjoo PARK ,  Junhee CHOI ,  Nakhyun KIM ,  Dongho KIM ,  Joohun HAN

IPC: H01L33/14 ,  H01L33/04 ,  H01L33/56 ,  H01L27/15 ,  H01L33/00

Abstract: A nanorod light-emitting device is provided. The nanorod light-emitting device includes a first semiconductor layer, a light-emitting layer on the first semiconductor layer, a second semiconductor layer disposed on the light-emitting layer, at least one conductive layer disposed between a central portion of a lower surface of the light-emitting layer and the first semiconductor layer, or between a central portion of an upper surface of the light-emitting layer and the second semiconductor layer, at least one current blocking layer that surrounds a side surface of the at least one conductive layer, and an insulating film that surrounds a side surface of the second semiconductor layer, a side surface of the light-emitting layer, and a side surface of the at least one current blocking layer.

公开(公告)号：US20210126154A1

公开(公告)日：2021-04-29

申请号：US16871214

申请日：2020-05-11

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Nakhyun KIM ,  Junhee CHOI ,  Kiho KONG ,  Deukseok CHUNG

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

Abstract: A method of manufacturing a display device includes forming a first light-emitting area on a substrate, and forming a first color adjustment pattern on the first light-emitting area by emitting first light from the first light-emitting area, wherein the first light-emitting area includes a first semiconductor layer, a second semiconductor layer provided on the first semiconductor layer, a first active layer arranged between the first semiconductor layer and the second semiconductor layer, a first contact electrically connecting the substrate and the first semiconductor layer, and a first preliminary common electrode electrically connected to the second semiconductor layer.

公开(公告)号：US20200176426A1

公开(公告)日：2020-06-04

申请号：US16593635

申请日：2019-10-04

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hoyoung AHN ,  Junhee CHOI ,  Kyungwook HWANG ,  Jinjoo PARK

IPC: H01L25/13 ,  H01L33/10 ,  H01L33/50 ,  H01L33/38 ,  H01L33/22

Abstract: A display device includes a substrate, an emission layer provided on the substrate and a reflective layer provided on the emission layer. The emission layer has an emission region that emits light, the reflective layer has a first opening, the emission region overlaps the first opening in a direction perpendicular to an upper surface of the substrate and a first width of the emission region is smaller than a second width of the first opening.

公开(公告)号：US20200168594A1

公开(公告)日：2020-05-28

申请号：US16670457

申请日：2019-10-31

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION

Inventor： Junhee CHOI ,  Euijoon YOON

IPC: H01L25/16 ,  H01L27/12 ,  H01L33/48 ,  H01L33/50

Abstract: Provided are a micro light source array for a display device, a display device including the micro light source array, and a method of manufacturing the display device. The micro light source array includes: a plurality of silicon sub-mounts provided on a substrate, each silicon sub-mount from among the plurality of silicon sub-mounts corresponding to a respective sub-pixel from among a plurality of sub-pixels of a display device, the plurality of silicon sub-mounts being separated from each other by a plurality of trenches; a plurality of light emitting device chips coupled to the plurality of silicon sub-mounts; and a plurality of driving circuits provided at the plurality of silicon sub-mounts.

公开(公告)号：US20240266468A1

公开(公告)日：2024-08-08

申请号：US18408236

申请日：2024-01-09

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Joohun HAN ,  Junhee CHOI ,  Kiho KONG ,  Joosung KIM ,  Hyochul KIM ,  Eunsung LEE

IPC: H01L33/24 ,  H01L25/075 ,  H01L33/00 ,  H01L33/10 ,  H01L33/22 ,  H01L33/32 ,  H01L33/44

CPC classification number: H01L33/24 ,  H01L25/0753 ,  H01L33/0075 ,  H01L33/0095 ,  H01L33/10 ,  H01L33/22 ,  H01L33/32 ,  H01L33/44

Abstract: Provided is a nanorod light-emitting device having improved luminous efficiency by reducing surface defects. The nanorod light-emitting device includes a semiconductor light-emitting structure having a nanorod shape, a surface activation layer provided on a sidewall of the semiconductor light-emitting structure, and an epitaxial passivation layer provided on the surface activation layer.

公开(公告)号：US20240243220A1

公开(公告)日：2024-07-18

申请号：US18223323

申请日：2023-07-18

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sunil KIM ,  Junhee CHOI ,  Nakhyun KIM ,  Junghun PARK

IPC: H01L33/02 ,  G02B5/00 ,  H01L33/24

CPC classification number: H01L33/025 ,  G02B5/008 ,  H01L33/24 ,  G09G3/32

Abstract: A light-emitting device includes a first semiconductor layer having a first conductive type, an active layer provided on the first semiconductor layer, a second semiconductor layer provided on the active layer and having a second conductive type that is electrically opposite to the first conductive type, an insulating film at least partially surrounding the first semiconductor layer, the active layer, and the second semiconductor layer, and a first plurality of photo-conversion particles provided inside the first semiconductor layer.