公开(公告)号：US11069829B2

公开(公告)日：2021-07-20

申请号：US16435313

申请日：2019-06-07

Applicant: Samsung Display Co. Ltd.

Inventor： Jung Hong Min ,  Dae Hyun Kim ,  Hyun Min Cho ,  Jong Hyuk Kang ,  Dong Uk Kim ,  Seung A Lee ,  Hyun Deok Im ,  Hyung Rae Cha

IPC: H01L33/00 ,  H01L33/30

Abstract: Provided is a method of manufacturing a light-emitting element, the method including positioning a substrate, forming a first separation layer, which includes a first sacrificial layer, an etching control layer on the first sacrificial layer, and a second sacrificial layer on the etching control layer, on the substrate, forming at least one first light-emitting element on the first separation layer, and separating the first light-emitting element from the substrate.

公开(公告)号：US12132141B2

公开(公告)日：2024-10-29

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

CPC classification number: H01L33/0075 ,  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：US11810905B2

公开(公告)日：2023-11-07

申请号：US17250633

申请日：2019-01-03

Applicant: Samsung Display Co., Ltd.

Inventor： Hyun Min Cho ,  Dae Hyun Kim ,  Dong Uk Kim ,  Jung Hong Min ,  Seung A Lee ,  Hyung Rae Cha

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

CPC classification number: H01L25/0753 ,  H01L27/1214 ,  H01L33/0093 ,  H01L33/22 ,  H01L33/62 ,  H01L2933/0066

Abstract: Provided are a light emitting device, a method for manufacturing same, and a display device including the light emitting device. The method for manufacturing the light emitting device comprises the steps of: preparing a lower substrate including a substrate and a buffer semiconductor layer formed on the substrate, forming an element rod by forming a separating layer disposed on the lower substrate, forming a first conductivity type semiconductor layer, an active material layer, and a second conductivity type semiconductor layer on the separating layer, and etching the first conductivity type semiconductor layer, the active material layer, the second conductivity type semiconductor layer, and the separating layer in a direction perpendicular to the lower substrate, forming a first insulating layer surrounding an outer circumferential surface of the element rod, forming a second insulating layer surrounding an outer circumferential surface of the first insulating layer and separating the element rod from the lower substrate to form a light emitting element.

公开(公告)号：US12142631B2

公开(公告)日：2024-11-12

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：US12119368B2

公开(公告)日：2024-10-15

申请号：US17276038

申请日：2019-04-23

Applicant: Samsung Display Co., LTD.

Inventor： Seung A Lee ,  Dong Uk Kim ,  Hyun Min Cho ,  Dae Hyun Kim ,  Jung Hong Min ,  Dong Eon Lee ,  Hyung Rae Cha

IPC: H01L33/00 ,  H01L27/15 ,  H01L33/24 ,  H01L33/44 ,  H01L33/60

CPC classification number: H01L27/156 ,  H01L33/007 ,  H01L33/0093 ,  H01L33/0095 ,  H01L33/24 ,  H01L33/44 ,  H01L33/60 ,  H01L2933/0025

Abstract: A method of manufacturing a light-emitting element comprises providing a semiconductor structure on a substrate, the semiconductor structure emitting light having different wavelength bands from each other, measuring the light having the different wavelength bands from each other and defining wavelength regions, forming nanopatterns spaced apart from each other on the semiconductor structure, the nanopatterns having different diameters from each other, and etching the semiconductor structure to form element rods.

公开(公告)号：US11682693B2

公开(公告)日：2023-06-20

申请号：US17316339

申请日：2021-05-10

Applicant: Samsung Display Co., Ltd.

Inventor： Dong Uk Kim ,  Hyun Min Cho ,  Keun Kyu Song ,  Dae Hyun Kim ,  Jung Hong Min ,  Seung A Lee ,  Hyung Rae Cha

IPC: H01L27/15 ,  H01L33/50 ,  H01L33/60

CPC classification number: H01L27/156 ,  H01L33/504 ,  H01L33/60 ,  H01L2933/0041 ,  H01L2933/0058

Abstract: A display device includes a first pixel and a second pixel; a light emitting layer; a color conversion layer on the light emitting layer; and a color filter layer on the color conversion layer, the light emitting layer including one or more light emitting elements in the first pixel and the second pixel, the color conversion layer including a first color conversion layer in the first pixel and a second color conversion layer in the second pixel. The color filter layer includes a first color filter layer in the first pixel and a second color filter layer in the second pixel, the light emitting elements capable of emitting a first light having a first wavelength, each of the first color conversion layer and the second color conversion layer including first color conversion particles and second color conversion particles.

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.

公开(公告)号：US11942567B2

公开(公告)日：2024-03-26

申请号：US17377266

申请日：2021-07-15

Applicant: Samsung Display Co. Ltd.

Inventor： Jung Hong Min ,  Dae Hyun Kim ,  Hyun Min Cho ,  Jong Hyuk Kang ,  Dong Uk Kim ,  Seung A Lee ,  Hyun Deok Im ,  Hyung Rae Cha

IPC: H01L33/00 ,  H01L33/30

CPC classification number: H01L33/0093 ,  H01L33/0066 ,  H01L33/30

Abstract: Provided is a method of manufacturing a light-emitting element, the method including positioning a substrate, forming a first separation layer, which includes a first sacrificial layer, an etching control layer on the first sacrificial layer, and a second sacrificial layer on the etching control layer, on the substrate, forming at least one first light-emitting element on the first separation layer, and separating the first light-emitting element from the substrate.

公开(公告)号：US11430912B2

公开(公告)日：2022-08-30

申请号：US17110574

申请日：2020-12-03

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jung Hong Min ,  Dae Hyun Kim ,  Seung A Lee ,  Hyun Min Cho ,  Jong Hyuk Kang ,  Dong Uk Kim ,  Hyun Deok Im ,  Hyung Rae Cha

IPC: H01L33/00 ,  H01L27/15 ,  H01L33/32 ,  H01L21/302

Abstract: A light emitting element, a method of manufacturing a light emitting element, and a display device including a light emitting element are provided. A method of manufacturing a light emitting element includes: preparing a lower panel including a substrate and a first sub conductive semiconductor layer on the substrate; forming a first mask layer including at least one mask pattern on at least a part of the lower panel to be spaced apart from each other and an opening region in which the mask patterns are spaced apart from each other; laminating a first conductive semiconductor layer, an active material layer, and a second conductive semiconductor layer on the first mask layer to form an element laminate; etching the element laminate in a vertical direction to form an element rod; and removing the mask pattern to separate the element rod from the lower panel.