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：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：US20230111380A1

公开(公告)日：2023-04-13

申请号：US18045814

申请日：2022-10-11

Applicant: Samsung Display Co., LTD.

Inventor： Jin Wan Kim ,  Seung Geun Lee ,  Sang Jo KIM ,  Hoo Keun Park

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

Abstract: A display device and a method for manufacturing the same are provided. The display device includes a substrate, pixel electrodes on the substrate, and light emitting elements on the pixel electrodes, each of the light emitting elements including a first stack configured to emit first light, a second stack below the first stack, and configured to emit second light, a third stack below the second stack, and configured to emit third light, and tunnel function layers respectively between the first stack and the second stack, and between the second stack and the third stack.

公开(公告)号：US20230246127A1

公开(公告)日：2023-08-03

申请号：US17944511

申请日：2022-09-14

Applicant: Samsung Display Co., LTD.

Inventor： Hoo Keun PARK ,  Sang Jo KIM ,  Su Jeong KIM ,  Byung Ju LEE

IPC: H01L33/18 ,  H01L27/15 ,  H01L33/32 ,  H01L33/00

CPC classification number: H01L33/18 ,  H01L27/156 ,  H01L33/007 ,  H01L33/0093 ,  H01L33/325

Abstract: A display device includes first banks spaced apart from one another and disposed on a substrate, a first electrode and a second electrode disposed on the respective first banks to cover the respective first banks, the first electrode and the second electrode being spaced apart from each other, and a light-emitting element disposed between the first electrode and the second electrode. The light-emitting element includes an active layer, a first semiconductor layer, and a second semiconductor layer disposed between the active layer and the first electrode. The first semiconductor layer includes a main semiconductor layer and a nanoporous layer disposed in the main semiconductor layer.

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：US20240265854A1

公开(公告)日：2024-08-08

申请号：US18611413

申请日：2024-03-20

Applicant: Samsung Display Co., LTD.

Inventor： Jin Wan KIM ,  Seung Geun LEE ,  Sang Jo KIM ,  Su Jeong KIM ,  Young Jin SONG ,  Byung Ju LEE

IPC: G09G3/32 ,  G09G3/20 ,  H01L23/00 ,  H01L25/18 ,  H01L27/15

CPC classification number: G09G3/32 ,  G09G3/2007 ,  H01L25/18 ,  H01L27/156 ,  G09G2300/0452 ,  H01L24/05 ,  H01L24/08 ,  H01L24/13 ,  H01L24/16 ,  H01L24/48 ,  H01L24/73 ,  H01L24/81 ,  H01L2224/05573 ,  H01L2224/05582 ,  H01L2224/05611 ,  H01L2224/05624 ,  H01L2224/05644 ,  H01L2224/05647 ,  H01L2224/05687 ,  H01L2224/08148 ,  H01L2224/13082 ,  H01L2224/13111 ,  H01L2224/13124 ,  H01L2224/13144 ,  H01L2224/13147 ,  H01L2224/16145 ,  H01L2224/48157 ,  H01L2224/73207 ,  H01L2224/80801 ,  H01L2224/81801

Abstract: A display device includes a substrate, a plurality of pixel electrodes on the substrate and spaced apart from each other, a plurality of light-emitting elements on the plurality of pixel electrodes, respectively, and a common electrode layer on the plurality of light-emitting elements and to which a common voltage is applied. The plurality of light-emitting elements include a first light-emitting element that is configured to emit first light according to a first driving current and a second light-emitting element that is configured to emit second light according to a second driving current. An active layer of the first light-emitting element is the same as an active layer of the second light-emitting element.

公开(公告)号：US20240063250A1

公开(公告)日：2024-02-22

申请号：US18233264

申请日：2023-08-11

Applicant: Samsung Display Co., LTD.

Inventor： Sang Jo KIM ,  Hoo Keun PARK

IPC: H01L27/15 ,  H01L25/18 ,  H01L23/00

CPC classification number: H01L27/156 ,  H01L25/18 ,  H01L24/05 ,  H01L24/13 ,  H01L24/29 ,  H01L24/73 ,  H01L24/16 ,  H01L24/32 ,  H01L2224/05573 ,  H01L2224/05555 ,  H01L2224/13023 ,  H01L2224/16145 ,  H01L2224/29111 ,  H01L2224/29124 ,  H01L2224/29139 ,  H01L2224/29166 ,  H01L2224/29147 ,  H01L2924/0132 ,  H01L2224/73253 ,  H01L2924/12041

Abstract: A display device includes a substrate, a plurality of pixel electrodes on the substrate, a plurality of light emitting elements on the plurality of pixel electrodes, and each of the plurality of light emitting elements including a first semiconductor layer, an active layer, and a second semiconductor layer, and a barrier layer around the plurality of light emitting elements and partitioning the plurality of light emitting elements, wherein the barrier layer includes a semiconductor material and a dopant including iron or carbon.

公开(公告)号：US20230282771A1

公开(公告)日：2023-09-07

申请号：US18115947

申请日：2023-03-01

Applicant: Samsung Display Co., LTD.

Inventor： Young Jin SONG ,  Jin Wan KIM ,  Sang Jo KIM ,  Seung Geun LEE

IPC: H01L33/24 ,  H01L25/16 ,  H01L33/00

CPC classification number: H01L33/24 ,  H01L25/167 ,  H01L33/0093

Abstract: A light emitting element is capable of increasing light emission efficiency. The light emitting element includes a first semiconductor layer including a groove and a protrusion disposed around the groove, a light emitting layer disposed on the groove of the first semiconductor layer and having a shape corresponding to the groove, a second semiconductor layer disposed on the light emitting layer, and an insulating pattern layer disposed on the protrusion of the first semiconductor layer and surrounding the second semiconductor layer.

公开(公告)号：US20230111615A1

公开(公告)日：2023-04-13

申请号：US17855182

申请日：2022-06-30

Applicant: Samsung Display Co., LTD.

Inventor： Jin Wan KIM ,  Sang Jo KIM ,  Hoo Keun PARK ,  Byung Ju LEE

IPC: H01L33/38 ,  H01L27/15 ,  H01L33/32 ,  H01L33/14 ,  H01L33/00

Abstract: A display device is provided. The display device comprises a plurality of pixel electrodes on a first substrate and spaced apart from each other; a plurality of light emitting elements on the plurality of pixel electrodes; and a common electrode layer on the plurality of light emitting elements, wherein the common electrode layer includes a first common electrode layer on the plurality of light emitting elements, and a second common electrode layer between the first common electrode layer and the plurality of light emitting elements, and a lattice constant of the first common electrode layer is larger than a lattice constant of the second common electrode layer.

公开(公告)号：US20250040301A1

公开(公告)日：2025-01-30

申请号：US18590971

申请日：2024-02-29

Applicant: Samsung Display Co., LTD.

Inventor： Sang Tae LEE ,  Seok Jin KANG ,  Sang Jo KIM ,  Jeong Hun HEO

IPC: H01L33/30 ,  H01L25/075 ,  H01L33/00 ,  H01L33/06

Abstract: A light-emitting element includes a first semiconductor layer doped to a first conductivity type, an active layer disposed on the first semiconductor layer, a second semiconductor layer disposed on the active layer, the second semiconductor layer doped to a second conductivity type, and a passivation layer surrounding surfaces of the active layer, the passivation layer including a side surface of the active layer, and the passivation layer includes a semiconductor material that matches a lattice of a semiconductor material contained in the active layer, the semiconductor material has a band gap energy higher than that of the semiconductor material contained in the active layer.