公开(公告)号：US20220068892A1

公开(公告)日：2022-03-03

申请号：US17244397

申请日：2021-04-29

Applicant: Samsung Display Co., LTD.

Inventor： Hyung Rae CHA ,  Dong Uk KIM ,  Sung Ae JANG ,  Ji Hyun HAM

IPC: H01L25/075 ,  H01L27/12 ,  H01L33/00 ,  H01L33/22 ,  H01L33/42 ,  H01L33/44 ,  H01L33/62

Abstract: A light-emitting element includes a first end portion and a second end portion disposed in a length direction of the light-emitting element, a first electrode corresponding to the first end portion, a first semiconductor layer on the first electrode, an active layer on the first semiconductor layer, a second semiconductor layer on the active layer, and a second electrode on the second semiconductor layer and corresponding to the second end portion. The second electrode includes a first layer on the first semiconductor layer, and a second layer on the first layer. The first semiconductor layer includes a p-type semiconductor layer doped with a p-type dopant. The second semiconductor layer includes an n-type semiconductor layer doped with an n-type dopant. The first electrode is in ohmic contact with the first semiconductor layer. The second electrode is in ohmic contact with the second semiconductor layer.

公开(公告)号：US20240266332A1

公开(公告)日：2024-08-08

申请号：US18620480

申请日：2024-03-28

Applicant: Samsung Display Co., LTD.

Inventor： Hyung Rae CHA ,  Dong Uk KIM ,  Sung Ae JANG ,  Ji Hyun HAM

IPC: H01L25/075 ,  H01L27/12 ,  H01L33/00 ,  H01L33/22 ,  H01L33/42 ,  H01L33/44 ,  H01L33/62

CPC classification number: H01L25/0753 ,  H01L27/1214 ,  H01L33/007 ,  H01L33/0093 ,  H01L33/22 ,  H01L33/42 ,  H01L33/44 ,  H01L33/62 ,  H01L2933/0016 ,  H01L2933/0025

Abstract: A light-emitting element includes a first end portion and a second end portion disposed in a length direction of the light-emitting element, a first electrode corresponding to the first end portion, a first semiconductor layer on the first electrode, an active layer on the first semiconductor layer, a second semiconductor layer on the active layer, and a second electrode on the second semiconductor layer and corresponding to the second end portion. The second electrode includes a first layer on the first semiconductor layer, and a second layer on the first layer. The first semiconductor layer includes a p-type semiconductor layer doped with a p-type dopant. The second semiconductor layer includes an n-type semiconductor layer doped with an n-type dopant. The first electrode is in ohmic contact with the first semiconductor layer. The second electrode is in ohmic contact with the second semiconductor layer.

公开(公告)号：US20220190204A1

公开(公告)日：2022-06-16

申请号：US17444803

申请日：2021-08-10

Applicant: Samsung Display Co., Ltd.

Inventor： Hyung Rae CHA ,  Dong Uk KIM ,  Young Chul SIM ,  Sung Ae JANG ,  Ji Hyun HAM

IPC: H01L33/38 ,  H01L25/075 ,  H01L33/00 ,  H01L33/40 ,  H01L33/42 ,  H01L33/44

Abstract: A light-emitting element includes: a first semiconductor layer including a first type semiconductor; a second semiconductor layer including a second type semiconductor different from the first type semiconductor; an active layer between one surface of the first semiconductor layer and one surface of the second semiconductor layer; a first electrode layer on another surface of the second semiconductor layer and having a first cross-sectional area; and a second electrode layer on another surface of the first semiconductor layer and having a second cross-sectional area smaller than the first cross-sectional area. A side surface of the light-emitting element defined by the first semiconductor layer, the active layer, the second semiconductor layer, and the second electrode layer is perpendicular to a main surface of the first electrode layer.

公开(公告)号：US20240421256A1

公开(公告)日：2024-12-19

申请号：US18818017

申请日：2024-08-28

Applicant: Samsung Display Co., LTD.

Inventor： Young Chul SIM ,  Hyung Rae CHA ,  Dong Uk KIM ,  Sung Ae JANG ,  Ji Hyun HAM

IPC: H01L33/32 ,  H01L27/15 ,  H01L33/00 ,  H01L33/38 ,  H01L33/42

Abstract: A light emitting element includes a first semiconductor layer including a first type of semiconductor, the first semiconductor layer including a 1-1-th semiconductor layer and a 1-2-th semiconductor layer, which are arranged in a length direction of the light emitting element; a second semiconductor layer including a second type of semiconductor different from the first type; an active layer disposed between the 1-2-th semiconductor layer and the second semiconductor layer; and an intermediate layer disposed between the 1-1-th semiconductor layer and the 1-2-th semiconductor layer and having a porous structure.

公开(公告)号：US20230369542A1

公开(公告)日：2023-11-16

申请号：US18024544

申请日：2020-12-16

Applicant: Samsung Display Co., LTD.

Inventor： Hyun Min CHO ,  Dong Uk KIM ,  Se Young KIM ,  Seung Geun LEE ,  Seung A LEE ,  Yo Han LEE ,  Sung Ae JANG ,  Hyung Rae CHA ,  Ji Hyun HAM

IPC: H01L33/44 ,  H01L25/16 ,  H01L33/00

CPC classification number: H01L33/44 ,  H01L25/167 ,  H01L33/0093 ,  H01L2933/0025

Abstract: A light-emitting device includes a light-emitting device core including a first semiconductor layer, a second semiconductor layer disposed on the first semiconductor layer, and an element active layer disposed between the first semiconductor layer and the second semiconductor layer; a first insulating layer disposed on the side surface of the light-emitting device core to surround the side surface of the light-emitting device core, and having first fixed charges; and a second insulating layer surrounding the outer side surface of the first insulating layer, and including a material having second fixed charges different from the first fixed charges.

公开(公告)号：US20230282778A1

公开(公告)日：2023-09-07

申请号：US17992656

申请日：2022-11-22

Applicant: Samsung Display Co., LTD.

Inventor： Dong Gyun KIM ,  Jun Bo SIM ,  Hee Yeon YOO ,  Jeong In CHOI ,  Chul Jong YOO ,  Yo Han LEE ,  Sung Ae JANG ,  Hyun Min CHO ,  Hyung Rae CHA

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

CPC classification number: H01L33/382 ,  H01L25/0753 ,  H01L33/62

Abstract: A light-emitting element comprises a core comprising a first semiconductor layer, a second semiconductor layer provided on the first semiconductor layer, and an emissive layer provided between the first semiconductor layer and the second semiconductor layer, and a first element insulating film around a side surface of the core, wherein the first element insulating film comprises a composite of an insulating member and an elastic member.

公开(公告)号：US20220140191A1

公开(公告)日：2022-05-05

申请号：US17365461

申请日：2021-07-01

Applicant: Samsung Display Co., LTD.

Inventor： Young Chul SIM ,  Hyung Rae CHA ,  Dong Uk KIM ,  Sung Ae JANG ,  Ji Hyun HAM

IPC: H01L33/32 ,  H01L27/15 ,  H01L33/00 ,  H01L33/42 ,  H01L33/38

Abstract: A light emitting element includes a first semiconductor layer including a first type of semiconductor, the first semiconductor layer including a 1-1-th semiconductor layer and a 1-2-th semiconductor layer, which are arranged in a length direction of the light emitting element; a second semiconductor layer including a second type of semiconductor different from the first type; an active layer disposed between the 1-2-th semiconductor layer and the second semiconductor layer; and an intermediate layer disposed between the 1-1-th semiconductor layer and the 1-2-th semiconductor layer and having a porous structure.