公开(公告)号：US20230163234A1

公开(公告)日：2023-05-25

申请号：US17967177

申请日：2022-10-17

Applicant: Samsung Display Co., LTD.

Inventor： Jae Woong YOO ,  Jin Hyuk JANG ,  Sung Hwi PARK ,  Sang Ho JEON ,  Seon Hong CHOI

IPC: H01L33/02 ,  H01L27/15 ,  H01L33/14 ,  H01L33/24 ,  H01L33/44

CPC classification number: H01L33/025 ,  H01L27/156 ,  H01L33/145 ,  H01L33/24 ,  H01L33/44

Abstract: A light emitting element includes a light emitting element core including a first area and a second area surrounding the first area. The light emitting element core includes a first semiconductor layer doped with a first dopant, a second semiconductor layer disposed on the first semiconductor layer and doped with a second dopant, an element active layer disposed between the first semiconductor layer and the second semiconductor layer; and a third semiconductor layer disposed between the element active layer and the second semiconductor layer and doped with the second dopant. The second area of the light emitting element core is located on an outer circumference of the light emitting element core and includes an outer surface of the light emitting element core. A doping concentration of the second dopant of the third semiconductor layer is lower than a defect density of the second area of the light emitting element core.

公开(公告)号：US20230395744A1

公开(公告)日：2023-12-07

申请号：US18111032

申请日：2023-02-17

Applicant: Samsung Display Co., LTD.

Inventor： Jong Won LEE ,  Bong Chun PARK ,  Kwan Jae LEE ,  So Young LEE ,  Jin Hyuk JANG ,  Chan Woo JOO ,  Seon Hong CHOI

IPC: H01L33/02 ,  H01L25/16 ,  H01L33/62

CPC classification number: H01L33/025 ,  H01L25/167 ,  H01L33/62

Abstract: A light emitting element may include a first semiconductor layer, a second semiconductor layer including a first area, a second area, and a third area that have different doping concentrations, an active layer disposed between the first semiconductor layer and the second semiconductor layer, and a first intermediate layer and a second intermediate layer that are disposed between at least one of the first area, the second area, and the third area. The first intermediate layer and the second intermediate layer may include different materials.

公开(公告)号：US20240339561A1

公开(公告)日：2024-10-10

申请号：US18604563

申请日：2024-03-14

Applicant: Samsung Display Co., LTD.

Inventor： Ji Song CHAE ,  Dae Hyun KIM ,  Sang Ho PARK ,  Jae Woong YOO ,  Chul Jong YOO ,  Sang Hoon LEE ,  Joo Hee LEE ,  Jin Hyuk JANG ,  Sang Ho JEON ,  Seon Hong CHOI

IPC: H01L33/02 ,  H01L25/16 ,  H01L33/00 ,  H01L33/44

CPC classification number: H01L33/025 ,  H01L25/167 ,  H01L33/0066 ,  H01L33/44 ,  H01L2933/0025

Abstract: A light emitting element may include a semiconductor stack structure including an N-type semiconductor layer, a P-type semiconductor layer, and an active layer disposed between the N-type semiconductor layer and the P-type semiconductor layer, and an insulating layer disposed on a side portion of the semiconductor stack structure. The semiconductor stack structure may include a fluorinated area disposed adjacent to the insulating layer.