公开(公告)号：US20230114923A1

公开(公告)日：2023-04-13

申请号：US18046121

申请日：2022-10-12

Applicant: Samsung Display Co., LTD.

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

IPC: H01L25/18 ,  H01L27/15

Abstract: A display device comprises a substrate, a plurality of pixel electrodes on the substrate, and a plurality of light emitting elements on the plurality of pixel electrodes, wherein the plurality of light emitting elements include a first light emitting element and a second light emitting element, and each of the first light emitting element and the second light emitting element comprises a first stack configured to emit a first light, a second stack below the first stack and configured to emit a second light or a third light, and tunnel functional layers between the first stack and the second stack.

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：US20230112256A1

公开(公告)日：2023-04-13

申请号：US17752620

申请日：2022-05-24

Applicant: Samsung Display Co., LTD.

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

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

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：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：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：US20230207607A1

公开(公告)日：2023-06-29

申请号：US17879274

申请日：2022-08-02

Applicant: Samsung Display Co., LTD.

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

IPC: H01L27/15 ,  H01L33/38 ,  H01L33/62 ,  H01L33/32 ,  H01L33/00

CPC classification number: H01L27/156 ,  H01L33/382 ,  H01L33/62 ,  H01L33/32 ,  H01L33/0075 ,  H01L2933/0016

Abstract: A display device includes: a plurality of pixel electrodes disposed to be spaced apart from each other on a substrate; a plurality of light emitting elements disposed on the plurality of pixel electrodes; a first undoped semiconductor layer on the plurality of light emitting elements; a second undoped semiconductor layer between the first undoped semiconductor layer and the plurality of light emitting elements; and a common electrode layer between the first undoped semiconductor layer and the second undoped semiconductor layer, wherein the common electrode layer includes at least two parts which are separated from each other.

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.