公开(公告)号：US20230223422A1

公开(公告)日：2023-07-13

申请号：US17969104

申请日：2022-10-19

Applicant: Samsung Display Co., LTD.

Inventor： Sang Jo KIM ,  Hoo Keun PARK ,  Young Jin SONG

IPC: H01L27/15 ,  H01L33/24 ,  H01L33/18 ,  H01L33/32 ,  H01L33/44 ,  H01L33/00

CPC classification number: H01L27/156 ,  H01L33/007 ,  H01L33/18 ,  H01L33/24 ,  H01L33/44 ,  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, each disposed on one of the first banks to cover each respective first bank and 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, the active layer is in a non-polarized state, and the active layer includes cubic gallium nitride (c-GaN).

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：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：US20230178687A1

公开(公告)日：2023-06-08

申请号：US17881459

申请日：2022-08-04

Applicant: Samsung Display Co., LTD.

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

IPC: H01L33/32 ,  H01L27/15 ,  H01L33/14 ,  H01L33/06 ,  H01L33/38

CPC classification number: H01L33/32 ,  H01L27/156 ,  H01L33/145 ,  H01L33/06 ,  H01L33/382

Abstract: A display device comprises a plurality of pixel electrodes which are provided on a substrate, and a plurality of light emitting elements which are provided on the plurality of pixel electrodes, wherein each of the plurality of light emitting elements comprises a first semiconductor layer, a second semiconductor layer and an active layer provided between the first semiconductor layer and the second semiconductor layer, and one or more of the plurality of light emitting elements comprise a capping layer included in the active layer, and another one of the plurality of light emitting elements does not comprise the capping layer in the active layer, wherein the capping layer comprises AlGaN.

公开(公告)号：US20230111670A1

公开(公告)日：2023-04-13

申请号：US17855251

申请日：2022-06-30

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 ,  H01L27/15 ,  H01L25/18 ,  G09G3/20

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：US20220352239A1

公开(公告)日：2022-11-03

申请号：US17559482

申请日：2021-12-22

Applicant: Samsung Display Co., LTD.

Inventor： Sang Jo KIM ,  Min Woo KIM ,  Jin Wan KIM ,  Dae Ho SONG ,  Jin Woo CHOI ,  Su Jeong KIM ,  Young Jin SONG

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

Abstract: A display device includes light emitting elements disposed on a substrate. The light emitting elements include an emission area and a porous area including quantum dots.

公开(公告)号：US20220352238A1

公开(公告)日：2022-11-03

申请号：US17559462

申请日：2021-12-22

Applicant: Samsung Display Co., LTD.

Inventor： Su Jeong KIM ,  Young Jin SONG ,  Jin Wan KIM ,  Dae Ho SONG ,  Jin Woo CHOI ,  Sang Jo KIM ,  Hoo Keun PARK ,  Byung Ju LEE ,  Seung Geun LEE

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

Abstract: A display device includes light-emitting elements disposed on a substrate, wherein each of the light-emitting elements includes a first semiconductor layer, an active layer disposed on the first semiconductor layer, a second semiconductor layer disposed on the active layer, and a porous layer disposed on the second semiconductor layer.

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：US20220285582A1

公开(公告)日：2022-09-08

申请号：US17543297

申请日：2021-12-06

Applicant: Samsung Display Co., LTD.

Inventor： Seung A LEE ,  Hoo Keun PARK ,  Young Jin SONG

IPC: H01L33/30 ,  H01L33/18 ,  H01L33/00 ,  H01L25/075

Abstract: A 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 different from the first type; and an active layer between the first and second semiconductor layers, the active layer including a first active area including a first well layer, and a second active area including a second well layer. The first well layer has a first band gap, and the second well layer has a second band gap smaller than the first band gap. At least a portion of the first active area is between the second active area and the second semiconductor layer. A distance between the second active area and the second semiconductor layer is equal to or greater than 0.1 times of a distance between the first and second semiconductor layers.