公开(公告)号：US20220336527A1

公开(公告)日：2022-10-20

申请号：US17641412

申请日：2020-02-27

Applicant: Samsung Display Co., LTD.

Inventor： Hyung Rae CHA ,  Dong Uk KIM ,  Myeong Hee KIM ,  Se Young KIM ,  Hyun Min CHO

IPC: H01L27/15 ,  H01L33/00 ,  H01L33/24 ,  H01L33/38 ,  H01L33/44

Abstract: A light emitting device includes: a first semiconductor layer that is doped with a first polarity dopant, and that includes a first part extending in a first direction and a second part connected to one side of the first part; a second semiconductor layer doped with second polarity dopant that differs from the first polarity dopant; an active layer between the first semiconductor layer and the second semiconductor layer; and an insulation film around at least the outer surface of the active layer and extends in the first direction, wherein the diameter of the second part measured in a second direction perpendicular to the first direction is larger than the diameter of the first part measured in the second direction, and the side surface of the second part is inclined.

公开(公告)号：US20220254959A1

公开(公告)日：2022-08-11

申请号：US17626019

申请日：2020-06-03

Applicant: Samsung Display Co., LTD.

Inventor： Seung Geun LEE ,  Dong Uk KIM ,  Dae Hyun KIM ,  Se Young KIM ,  Hyun Min CHO ,  Hyung Rae CHA

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

Abstract: A light emitting element having a shape extending in a direction includes a first semiconductor layer and a second semiconductor layer, an active layer between the first and second semiconductor layers, a first electrode layer on a second surface opposite to a first surface of the first semiconductor layer facing the active layer, a second electrode layer on a second surface opposite to a first surface of the second semiconductor layer facing the active layer, and an insulating film surrounding a side surface of the active layer, a side surface of the first electrode layer, and a side surface of the second electrode layer, wherein a first area including the insulating film adjacent to a side surface of the active layer has a thickness larger than a thickness of a second area including the insulating film adjacent to a side surface of the first electrode layer.

公开(公告)号：US20250040293A1

公开(公告)日：2025-01-30

申请号：US18911451

申请日：2024-10-10

Applicant: Samsung Display Co., Ltd.

Inventor： Dong Uk KIM ,  Se Young KIM ,  Hyung Rae CHA

IPC: H01L33/00 ,  H01L33/24 ,  H01L33/38

Abstract: A light emitting element includes a semiconductor core having at least a partial region extending in a direction and including a first end, a second end, and a main body part between the first end and the second end; a first electrode layer surrounding the second end of the semiconductor core; a second electrode layer surrounding at least the first end of the semiconductor core and spaced apart from the first electrode layer; and an insulating layer surrounding the semiconductor core, the first electrode layer and the second electrode layer. The second end of the semiconductor core has a diameter smaller than a diameter of the main body part.

公开(公告)号：US20220140186A1

公开(公告)日：2022-05-05

申请号：US17310745

申请日：2019-08-20

Applicant: Samsung Display Co., Ltd.

Inventor： Jung Hong MIN ,  Dae Hyun KIM ,  Dong Uk KIM ,  Hyun Min CHO ,  Se Young KIM ,  Seung A LEE ,  Hyung Rae CHA

IPC: H01L33/24 ,  H01L33/38 ,  H01L27/15 ,  H01L33/62

Abstract: A light emitting element may include an emission stacked pattern including a first conductive semiconductor layer, an active layer, and a second conductive semiconductor layer that are stacked in a longitudinal direction of the emission stacked pattern. The active layer may include a first surface that is in contact with the first conductive semiconductor layer in the longitudinal direction of the emission stacked pattern, and a second surface that is opposite the first surface and is in contact with the second conductive semiconductor layer. The first conductive semiconductor layer may include at least one n-type semiconductor layer, and the second conductive semiconductor layer may include at least one p-type semiconductor layer. Further, the first surface of the active layer may be located at a point corresponding to −20% to +20% of half of a total length of the emission stacked pattern in the longitudinal direction of the emission stacked pattern.

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：US20220359783A1

公开(公告)日：2022-11-10

申请号：US17624065

申请日：2020-06-03

Applicant: Samsung Display Co., LTD.

Inventor： Dong Uk KIM ,  Se Young KIM ,  Hyung Rae CHA

IPC: H01L33/00 ,  H01L33/24 ,  H01L33/38

Abstract: A light emitting element includes a semiconductor core having at least a partial region extending in a direction and including a first end, a second end, and a main body part between the first end and the second end; a first electrode layer surrounding the second end of the semiconductor core; a second electrode layer surrounding at least the first end of the semiconductor core and spaced apart from the first electrode layer; and an insulating layer surrounding the semiconductor core, the first electrode layer and the second electrode layer. The second end of the semiconductor core has a diameter smaller than a diameter of the main body part.

公开(公告)号：US20220190025A1

公开(公告)日：2022-06-16

申请号：US17401713

申请日：2021-08-13

Applicant: Samsung Display Co., LTD.

Inventor： Chul Jong YOO ,  Dong Uk KIM ,  Se Young KIM ,  So Young LEE ,  Hyung Rae CHA

IPC: H01L27/15 ,  H01L33/00 ,  H01L33/14 ,  H01L33/24 ,  H01L33/32 ,  H01L33/36 ,  H01L33/44

Abstract: A light emitting diode includes a first end and a second end facing each other, a current blocking layer, a first semiconductor layer, an active layer, a second semiconductor layer, and an insulating film surrounding outer circumferential surfaces of the first semiconductor layer, the active layer, and the second semiconductor layer and exposing at least a portion of the current blocking layer and at least a portion of the first semiconductor layer at the second end. The current blocking layer, the first semiconductor layer, the active layer, and the second semiconductor layer are sequentially disposed in a direction from the second end to the first end.

公开(公告)号：US20230352621A1

公开(公告)日：2023-11-02

申请号：US18008389

申请日：2020-08-11

Applicant: Samsung Display Co., LTD.

Inventor： Hyung Rae CHA ,  Dong Uk KIM ,  Se Young KIM

IPC: H01L33/14 ,  H01L33/24 ,  H01L33/38 ,  H01L33/00 ,  H01L33/32

CPC classification number: H01L33/145 ,  H01L33/24 ,  H01L33/38 ,  H01L33/007 ,  H01L33/325

Abstract: A light-emitting device includes: a light-emitting device core including a first semiconductor layer, a second semiconductor layer on the first semiconductor layer, and an active layer between the first semiconductor layer and the second semiconductor layer; an electrode layer on the second semiconductor layer of the light-emitting device core, and an insulating film around a side surface of the light-emitting device core, wherein a side surface of the electrode layer protrudes outward from a side surface of the second semiconductor layer.

公开(公告)号：US20220173277A1

公开(公告)日：2022-06-02

申请号：US17389127

申请日：2021-07-29

Applicant: Samsung Display Co., LTD.

Inventor： So Young LEE ,  Dong Uk KIM ,  Chul Jong YOO ,  Se Young KIM

IPC: H01L33/44 ,  H01L33/20 ,  H01L25/075 ,  H01L33/00 ,  H01L25/16

Abstract: A display device, a light-emitting element, and a method of manufacturing a light-emitting element are provided. A display device includes: a first electrode and a second electrode spaced apart from each other; and light-emitting elements between the first electrode and the second electrode, and each of the light-emitting elements includes a first area having a first diameter, a second area having a second diameter greater than the first diameter, a first insulating film surrounding the first area, and a second insulating film on the first insulating film, and the second insulating film surrounds the second area exposed by the first insulating film.

公开(公告)号：US20220336711A1

公开(公告)日：2022-10-20

申请号：US17694889

申请日：2022-03-15

Applicant: Samsung Display Co., LTD. ,  POSTECH Research and Business Development Foundation

Inventor： Se Young KIM ,  Jong Lam LEE ,  Won Seok CHO ,  Dong Uk KIM ,  Jae Yong PARK ,  Chul Jong YOO

IPC: H01L33/38 ,  H01L33/42

Abstract: A light-emitting element and a display device including the same are provided. The light-emitting element comprises a first semiconductor layer doped with an n-type dopant, a second semiconductor layer disposed below the first semiconductor layer and doped with a p-type dopant, a light-emitting layer disposed between the first semiconductor layer and the second semiconductor layer, a first intermediate layer disposed on the first semiconductor layer, and including a metal, and an electrode layer disposed on the first intermediate layer. Light from the light-emitting layer transmits through the first semiconductor layer, the first intermediate layer, and the electrode layer at a transmittance equal to or greater than about 70%.