公开(公告)号：US20240063343A1

公开(公告)日：2024-02-22

申请号：US18304455

申请日：2023-04-21

Applicant: Samsung Display Co., LTD.

Inventor： Jung Hun NOH ,  Ju Won YOON ,  Jin Wan KIM ,  Jin Woo CHOI

IPC: H01L33/38 ,  H01L25/16

CPC classification number: H01L33/385 ,  H01L25/167 ,  H01L33/0093

Abstract: A display device comprises a pixel electrode disposed on a substrate, light emitting elements disposed on the pixel electrode, a first via layer disposed on the pixel electrode and filled between the light emitting elements, and a common electrode disposed on the first via layer and the light emitting elements, wherein each of the light emitting elements includes a first semiconductor layer including a p-type dopant, an active layer disposed on the first semiconductor layer, a second semiconductor layer disposed on the active layer and including an n-type dopant, and a third semiconductor layer disposed on the second semiconductor layer, and the common electrode is in contact with a side surface of the second semiconductor layer.

公开(公告)号：US20230066350A1

公开(公告)日：2023-03-02

申请号：US17662205

申请日：2022-05-05

Applicant: Samsung Display Co., Ltd.

Inventor： Young Chul SIM ,  Jin Wan KIM ,  Dong Uk KIM ,  Dong Kyun SEO ,  Byung Ju LEE ,  Seung Geun LEE ,  Hyung Rae CHA

IPC: H01L33/30 ,  H01L33/18

Abstract: A light emitting element may include: a light emitting element core including a first semiconductor layer, a second semiconductor layer, and a light emitting layer between the first semiconductor layer and the second semiconductor layer; and a single crystal insulating layer around a side surface of the light emitting element core.

公开(公告)号：US20230061476A1

公开(公告)日：2023-03-02

申请号：US17829916

申请日：2022-06-01

Applicant: Samsung Display Co., LTD.

Inventor： Su Jeong KIM ,  Jin Wan KIM ,  Seung Geun LEE ,  Sang Jo KIM

IPC: H01L33/38 ,  H01L33/62 ,  H01L33/32 ,  H01L33/00

Abstract: A display device includes a first electrode and a second electrode that are disposed on a substrate, a light emitting element disposed on the first electrode and the second electrode, a first contact electrode electrically connecting the first electrode and the light emitting element to each other, and a second contact electrode electrically connecting the second electrode and the light emitting element to each other. The light emitting element includes a first semiconductor layer including a semiconductor of a first type, a second semiconductor layer including a semiconductor of a second type, and an active layer disposed between the first semiconductor layer and the second semiconductor layer. The first semiconductor layer includes a doped semiconductor layer including a porous structure.

公开(公告)号：US20230317764A1

公开(公告)日：2023-10-05

申请号：US18112121

申请日：2023-02-21

Applicant: Samsung Display Co., LTD.

Inventor： Young Jin SONG ,  Sang Jo KIM ,  Jin Wan KIM

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

CPC classification number: H01L27/156 ,  H01L33/0093 ,  H01L33/24 ,  H01L33/44

Abstract: A display device includes a plurality of pixel electrodes spaced apart from each other on a substrate, a plurality of light emitting elements disposed on the plurality of pixel electrodes, the plurality of light emitting elements including a first semiconductor layer, a semiconductor pattern disposed on the first semiconductor layer, a common electrode layer disposed on the semiconductor pattern, and a void disposed between the first semiconductor layer, the semiconductor pattern, and the common electrode layer. The plurality of light emitting elements include a first light emitting element and a second light emitting element.

公开(公告)号：US20230268464A1

公开(公告)日：2023-08-24

申请号：US18074580

申请日：2022-12-05

Applicant: Samsung Display Co., LTD.

Inventor： Byung Ju LEE ,  Jin Wan KIM ,  Hoo Keun PARK ,  Young Jin SONG ,  Seung Geun LEE

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

CPC classification number: H01L33/382 ,  H01L33/0075 ,  H01L33/325 ,  H01L2933/0016

Abstract: A method of manufacturing a light emitting element, comprises placing a plurality of mask patterns on a substrate, forming first patterns on the substrate through the plurality of mask patterns, the first patterns recessed from an upper surface of the substrate, forming an undoped semiconductor layer on the substrate on which the first patterns are formed, etching the undoped semiconductor layer, forming a first semiconductor layer on the undoped semiconductor layer, forming an active layer on the first semiconductor layer, forming a second semiconductor layer on the active layer, and forming an electrode layer on the second semiconductor layer, wherein the undoped semiconductor layer includes second patterns recessed from a lower surface of the undoped semiconductor layer.

公开(公告)号：US20230207732A1

公开(公告)日：2023-06-29

申请号：US17885872

申请日：2022-08-11

Applicant: Samsung Display Co., LTD.

Inventor： Hoo Keun PARK ,  Jin Wan KIM ,  Sang Jo KIM ,  Su Jeong KIM

IPC: H01L33/38 ,  H01L33/62 ,  H01L27/15 ,  H01L33/14 ,  H01L33/00 ,  H01L33/06

CPC classification number: H01L33/382 ,  H01L27/156 ,  H01L33/005 ,  H01L33/06 ,  H01L33/62 ,  H01L33/145 ,  H01L2933/0016 ,  H01L2933/0066

Abstract: A display device includes pixel electrodes spaced apart from one another on a substrate; light-emitting elements disposed on the pixel electrodes; a common electrode layer disposed on the light-emitting elements; and an undoped semiconductor layer disposed on the common electrode layer. The display device includes nanostructures disposed in the common electrode layer and spaced apart from one another, and the common electrode layer includes a first common electrode layer disposed between the undoped semiconductor layer and the nanostructures, and a second common electrode layer disposed between adjacent nanostructures and disposed between the light-emitting elements and the nanostructures.

公开(公告)号：US20240063337A1

公开(公告)日：2024-02-22

申请号：US18344504

申请日：2023-06-29

Applicant: Samsung Display Co., LTD.

Inventor： Su Jeong KIM ,  Sang Jo KIM ,  Jin Wan KIM ,  Hoo Keun PARK

IPC: H01L33/18 ,  H01L33/10 ,  H01L33/08 ,  H01L33/06 ,  H01L33/14 ,  H01L33/62

CPC classification number: H01L33/18 ,  H01L33/10 ,  H01L33/08 ,  H01L33/06 ,  H01L33/145 ,  H01L33/62

Abstract: A display device includes a substrate including a pixel circuit unit, a partition wall including a distributed Bragg reflector (DBR) structure partitioning a light-emitting area and a non-light-emitting area, and light-emitting elements above the substrate, corresponding to the light-emitting area, and including a first semiconductor layer, an active layer, and a porous semiconductor layer.

公开(公告)号：US20240047449A1

公开(公告)日：2024-02-08

申请号：US18483467

申请日：2023-10-09

Applicant: Samsung Display Co., LTD.

Inventor： Seung Geun LEE ,  Jin Wan KIM ,  Sang Jo KIM ,  Su Jeong KIM

IPC: H01L25/18 ,  G09G3/32 ,  G09G3/20 ,  H01L27/15

CPC classification number: H01L25/18 ,  G09G3/32 ,  G09G3/2018 ,  H01L27/156 ,  G09G2300/0426 ,  H01L24/05

Abstract: A display device comprises a substrate, a pixel electrode on the substrate, a light emitting element on the pixel electrode, and a common electrode layer on the light emitting element, and configured to receive a common voltage, wherein the light emitting element configured to emit a first light according to a driving current having a first current density, is configured to emit a second light according to a driving current having a second current density, and is configured to emit a third light according to a driving current having a third current density.

公开(公告)号：US20230197888A1

公开(公告)日：2023-06-22

申请号：US18081985

申请日：2022-12-15

Applicant: Samsung Display Co., LTD.

Inventor： Hoo Keun PARK ,  Jin Wan KIM ,  Seung Geun LEE

IPC: H01L33/04 ,  H01L33/00 ,  H01L33/38 ,  H01L21/311

CPC classification number: H01L33/04 ,  H01L33/0075 ,  H01L33/38 ,  H01L21/31144 ,  B82Y40/00

Abstract: Provided herein is a light emitting element and a method of fabricating the light emitting element. The light emitting element includes a first semiconductor layer, a first insulating film disposed on the first semiconductor layer, the first insulating film including a nano-pattern, an active layer disposed in the nano-pattern of the first insulating film, and a second semiconductor layer disposed on the active layer in the nano-pattern of the first insulating film.

公开(公告)号：US20230155063A1

公开(公告)日：2023-05-18

申请号：US17873557

申请日：2022-07-26

Applicant: Samsung Display Co., LTD.

Inventor： Su Jeong KIM ,  Sang Jo KIM ,  Seung Geun LEE ,  Min Woo KIM ,  Jin Wan KIM

IPC: H01L33/38 ,  H01L33/62 ,  H01L27/15 ,  H01L33/06

CPC classification number: H01L33/382 ,  H01L33/62 ,  H01L27/156 ,  H01L33/06

Abstract: The display device is provided. The display device comprises contact electrodes disposed on a substrate, light-emitting elements disposed on the contact electrodes, and an insulating layer defining emission areas corresponded to the light-emitting elements. The light-emitting elements comprise a first light-emitting element that emits a first light having a blue color, a second light-emitting element that emits a second light having a green color, and a third light-emitting element that emits a third light having a red color. A width of the first light-emitting element is greater than a width of the second light-emitting element. The width of the first light-emitting element is greater than a width of the third light-emitting element.