公开(公告)号：US12237314B2

公开(公告)日：2025-02-25

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

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：US12095008B2

公开(公告)日：2024-09-17

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: H01L33/40 ,  H01L27/15 ,  H01L33/00 ,  H01L33/32 ,  H01L33/38 ,  H01L33/42

CPC classification number: H01L33/325 ,  H01L27/156 ,  H01L33/005 ,  H01L33/382 ,  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：US11973066B2

公开(公告)日：2024-04-30

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

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.