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：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：US20230110747A1

公开(公告)日：2023-04-13

申请号：US17664853

申请日：2022-05-24

Applicant: Samsung Display Co., LTD.

Inventor： Jin Wan KIM ,  Min Woo KIM ,  Seung Geun LEE

IPC: H01L25/075 ,  H01L33/58 ,  H01L33/30 ,  H01L33/40 ,  H01L33/00 ,  H01L33/06

Abstract: A display device and a method for fabrication thereof are provided. A display device includes a plurality of pixel electrodes spaced from each other on a substrate, a plurality of light emitting elements respectively located on the plurality of pixel electrodes, a common electrode layer on the plurality of light emitting elements, and an emission defining layer defining emission areas in which the plurality of light emitting elements are located, wherein the emission defining layer is in contact with a side surface of each of the plurality of light emitting elements and surrounds the side surface of each of the plurality of light emitting elements.

公开(公告)号：US20220352425A1

公开(公告)日：2022-11-03

申请号：US17707327

申请日：2022-03-29

Applicant: Samsung Display Co., LTD.

Inventor： Jin Wan KIM ,  Dae Ho SONG ,  Byung Ju LEE ,  Seung Geun LEE ,  Jin Woo CHOI

IPC: H01L33/38 ,  H01L33/62 ,  H01L33/10 ,  H01L27/15 ,  H01L25/075 ,  H01L33/32 ,  H01L33/00

Abstract: A display device includes pixels including a first pixel and a second pixel; a first electrode disposed in a light-emitting area of the first pixel; a first light-emitting element disposed on the first electrode and electrically connected to the first electrode, the first light-emitting element including a first light-emitting layer emitting light of a first color; a second electrode disposed in a light-emitting area of the second pixel; a second light-emitting element disposed on the second electrode and electrically connected to the second electrode, the second light-emitting element including a second light-emitting layer emitting light of a second color; and a bank disposed around the pixels to surround the light-emitting area of the first pixel and the light-emitting area of the second pixel, and including an inactive light-emitting layer of a same material as the first light-emitting layer.

公开(公告)号：US20220352251A1

公开(公告)日：2022-11-03

申请号：US17704217

申请日：2022-03-25

Applicant: Samsung Display Co., LTD.

Inventor： Seung Geun LEE ,  Min Woo KIM ,  Byung Ju LEE ,  Dae Ho SONG ,  Jin Woo CHOI

IPC: H01L27/15 ,  H01L33/06 ,  H01L33/42 ,  H01L33/44 ,  H01L33/50

Abstract: The disclosure relates to a display device and a method of manufacturing the same. A display device includes a pixel including a first electrode, a light emitting element disposed on the first electrode, and a second electrode disposed on the light emitting element. The light emitting element includes: an emission layer that generates light of a first color; a first light conversion layer disposed between the emission layer and the first electrode to convert the light of the first color into light of a second color; a second light conversion layer disposed between the first light conversion layer and the first electrode to convert the light of the first color or the light of the second color into light of a third color; and a first semiconductor layer disposed between the emission layer and the second electrode and including a first conductivity type dopant.

公开(公告)号：US20220254959A1

公开(公告)日：2022-08-11

申请号：US17626019

申请日：2020-06-03

Applicant: Samsung Display Co., LTD.

Inventor： Seung Geun LEE ,  Dong Uk KIM ,  Dae Hyun KIM ,  Se Young KIM ,  Hyun Min CHO ,  Hyung Rae CHA

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

Abstract: A light emitting element having a shape extending in a direction includes a first semiconductor layer and a second semiconductor layer, an active layer between the first and second semiconductor layers, a first electrode layer on a second surface opposite to a first surface of the first semiconductor layer facing the active layer, a second electrode layer on a second surface opposite to a first surface of the second semiconductor layer facing the active layer, and an insulating film surrounding a side surface of the active layer, a side surface of the first electrode layer, and a side surface of the second electrode layer, wherein a first area including the insulating film adjacent to a side surface of the active layer has a thickness larger than a thickness of a second area including the insulating film adjacent to a side surface of the first electrode layer.

公开(公告)号：US20250120223A1

公开(公告)日：2025-04-10

申请号：US18983306

申请日：2024-12-16

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Byung Ju LEE ,  Dae Ho SONG ,  Jin Woo CHOI ,  Jin wan KIM ,  Seung Geun LEE

IPC: H01L33/38 ,  H01L33/00 ,  H01L33/50

Abstract: A display device includes a base substrate, a partitioning wall on the base substrate, wherein the partitioning wall includes a first partitioning wall, and a second partitioning wall on the first partitioning wall, and a light emitting element spaced from the partitioning wall and located in a space surrounded by the partitioning wall in a plan view. The first partitioning wall and the light emitting element include a same material. The second partitioning wall includes a transparent conductive oxide.