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：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.

公开(公告)号：US10818820B2

公开(公告)日：2020-10-27

申请号：US16352706

申请日：2019-03-13

Applicant: Samsung Display Co., Ltd.

Inventor： Dong Uk Kim

IPC: H01L33/06 ,  H01L33/20 ,  H01L27/15 ,  H01L33/50 ,  H01L33/58

Abstract: A display device includes: a substrate including a display region and a non-display region; a plurality of pixels provided in the display region, the plurality of pixels including first to third sub-pixels each having a light emitting region configured to light; a first light emitting element that is provided in each of the first and second sub-pixels and emits first color light, and a second light emitting element that is provided in the third sub-pixel and emits second color light; and a color conversion layer corresponding to each of the first and second sub-pixels, the color conversion layer converting the first color light into light of a set color for each corresponding sub-pixel.

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：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：US11908987B2

公开(公告)日：2024-02-20

申请号：US17988921

申请日：2022-11-17

Applicant: Samsung Display Co., LTD.

Inventor： Kwang Soo Bae ,  Dong Uk Kim ,  Beom Soo Park ,  Min Jeong Oh ,  Young Je Cho

IPC: H01L33/62 ,  H01L33/60 ,  H01L33/00 ,  H01L33/50 ,  H01L27/15

CPC classification number: H01L33/62 ,  H01L27/156 ,  H01L33/005 ,  H01L33/50 ,  H01L33/60 ,  H01L2933/0058 ,  H01L2933/0066

Abstract: A display device includes a substrate and a display element layer disposed on the substrate and emitting light. The display element layer includes a first electrode electrically connected to a portion of a first light emitting element, a second electrode electrically connected to another portion of the first light emitting element, and at least one insulating structure disposed on the substrate and having a convex shape protruding from the substrate. The first light emitting element is disposed in a space of the at least one insulating structure. A method of manufacturing the display device is also disclosed.