公开(公告)号：US12183857B2

公开(公告)日：2024-12-31

申请号：US17263871

申请日：2019-01-30

Applicant: Samsung Display Co., Ltd.

Inventor： Dong Uk Kim ,  Je Won Yoo ,  Hyun Min Cho ,  Jung Hong Min

IPC: H01L33/50 ,  H01L25/16 ,  G09G3/32 ,  H01L33/20 ,  H01L33/62

Abstract: A light emitting device may include: a substrate; a light emitting element located on the substrate and configured to emit light; a first electrode and a second electrode spaced from each other with the light emitting element interposed therebetween; a color conversion layer located on the substrate and configured to convert light emitted from the light emitting element into light having a specific color; a first contact electrode configured to electrically couple the first electrode with a first end of the light emitting element; and a second contact electrode configured to electrically couple the second electrode with a second end of the light emitting element. In a plan view, the color conversion layer may be spaced from the light emitting element and overlaps with at least one of the first and the second contact electrodes.

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：US12035582B2

公开(公告)日：2024-07-09

申请号：US17255985

申请日：2018-09-20

Applicant: Samsung Display Co., Ltd.

Inventor： Hyun Deok Im ,  Jong Hyuk Kang ,  Dae Hyun Kim ,  Jung Hong Min ,  Bek Hyun Lim ,  Hyun Min Cho

IPC: H10K59/131

CPC classification number: H10K59/131

Abstract: A display device includes: a first pixel stem wiring and a common stem wiring extending in a first direction and spaced apart from each other; a first pixel branch wiring branched from the first pixel stem wiring and extending in a second direction crossing the first direction; a common branch wiring branched from the common stem wiring and extending in the second direction; and a first light emitting element between the first pixel branch wiring and the common branch wiring. The first pixel branch wiring includes a base branch pattern connected to the first pixel stem wiring, a separate branch pattern spaced apart from the base branch pattern, and a bridge wiring connecting the base branch pattern to the separate branch pattern.

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：US12243969B2

公开(公告)日：2025-03-04

申请号：US17291398

申请日：2019-05-27

Applicant: Samsung Display Co., LTD.

Inventor： Hyun Min Cho ,  Jung Hong Min ,  Dae Hyun Kim ,  Dong Uk Kim

IPC: H01L33/62 ,  H01L27/15 ,  H01L33/00 ,  H01L33/16 ,  H01L33/38

Abstract: A light emitting element structure may include at least one light emitting element which is disposed on a substrate and spaced apart from each other, and extends in a direction perpendicular to the substrate; an auxiliary layer which is disposed on the substrate, exposes at least a portion of the upper surface of the substrate, and surrounds the outer surface of the light emitting element; a current spreading layer which is disposed on the auxiliary layer and electrically contacts an end of the light emitting element; a first pad which is electrically connected to the end of the light emitting element, disposed on the current spreading layer, and does not to overlap the light emitting element; and a second pad which is electrically connected to another end of the light emitting element disposed on the upper surface of the exposed substrate and spaced apart from the auxiliary 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.

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：US11984470B2

公开(公告)日：2024-05-14

申请号：US17423290

申请日：2019-12-05

Applicant: Samsung Display Co., LTD.

Inventor： Keun Kyu Song ,  Jung Hong Min ,  Dae Hyun Kim ,  Dong Uk Kim ,  Hyun Min Cho

IPC: H01L33/00 ,  H01L27/15 ,  H01L33/24 ,  H01L33/30 ,  H01L33/38 ,  H01L33/44

CPC classification number: H01L27/156 ,  H01L33/0066 ,  H01L33/0093 ,  H01L33/24 ,  H01L33/30 ,  H01L33/38 ,  H01L33/44 ,  H01L2933/0025

Abstract: A light-emitting diode includes a first semiconductor region having a first conductive type; a second semiconductor region having a second conductive type; and an active layer disposed between the first semiconductor region and the second semiconductor region and including phosphorus (P). The light-emitting diode has a rod shape, the second semiconductor region includes a first semiconductor layer, a second semiconductor layer, and a third semiconductor layer, which are sequentially stacked, the first semiconductor layer is disposed between the active layer and the second semiconductor layer, and the second semiconductor layer includes a compound represented by AlGaInP and satisfying Equation 1.

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.