公开(公告)号：US20220352422A1

公开(公告)日：2022-11-03

申请号：US17583800

申请日：2022-01-25

Applicant: Samsung Display Co., LTD.

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

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

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.

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.

公开(公告)号：US20220173158A1

公开(公告)日：2022-06-02

申请号：US17520227

申请日：2021-11-05

Applicant: Samsung Display Co., Ltd.

Inventor： Seung Geun LEE ,  Byung Ju LEE ,  Hoo Keun PARK ,  Chul Jong YOO ,  Dong Eon LEE

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

Abstract: A display device includes a first subpixel and a second subpixel, wherein the first subpixel includes a first light source unit including a plurality of first light-emitting elements configured to emit first light having a center wavelength of a first wavelength, the second subpixel includes a second light source unit including a plurality of second light-emitting elements configured to emit second light having a center wavelength of a second wavelength, the first light source unit includes first to nth light-emitting groups that are connected in series, each of the groups including the plurality of first light-emitting elements, the second light source unit includes first to mth light-emitting groups that are connected in series and each of the groups includes the plurality of second light-emitting elements, where n and m are natural numbers, and the second wavelength is different from the first wavelength.

公开(公告)号：US20220140019A1

公开(公告)日：2022-05-05

申请号：US17452538

申请日：2021-10-27

Applicant: Samsung Display Co., Ltd.

Inventor： Hoo Keun PARK ,  Seung Geun LEE ,  Won Sik OH ,  Byung Ju LEE ,  Seung A LEE

IPC: H01L27/32

Abstract: A display device includes a first substrate including a plurality of subpixels; a first electrode and a second electrode on the first substrate in each of the plurality of subpixels and spaced apart from each other; a plurality of light emitting elements having both ends on the first electrode and the second electrode, respectively; and a color control layer on the plurality of light emitting elements. The plurality of subpixels includes a first subpixel to display a first color and a second subpixel to display a second color different from the first color, and the plurality of light emitting elements includes first light emitting elements in the first subpixel and to emit light of a third color and second light emitting elements in the second subpixel and to emit light of the second color, wherein the third color is different from the first color and the second color.

公开(公告)号：US20220109023A1

公开(公告)日：2022-04-07

申请号：US17474688

申请日：2021-09-14

Applicant: Samsung Display Co., LTD.

Inventor： Byung Ju LEE ,  Seung Geun LEE ,  Hoo Keun PARK ,  Won Sik OH ,  Seung A. LEE

IPC: H01L27/15 ,  H01L33/24 ,  H01L33/38 ,  H01L33/44

Abstract: A display device includes a first electrode and a second electrode spaced apart from each other and disposed on a substrate, a light emitting element extending in a first direction and including a first end disposed on the first electrode in the first direction and a second end disposed on the second electrode in the first direction. A diameter of the first end of the light emitting element is different from a diameter of the second end of the light emitting element. The light emitting element includes a first semiconductor layer, a second semiconductor layer spaced apart from the first semiconductor layer, and an active layer disposed between the first semiconductor layer and the second semiconductor layer. The active layer is adjacent to one of the first end and the second end of the light emitting element, which has a larger diameter than a diameter of the other.

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：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：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：US20210375984A1

公开(公告)日：2021-12-02

申请号：US17403828

申请日：2021-08-16

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Dong Gyun KIM ,  Moon Jung AN ,  Dong Eon LEE ,  Hye Lim KANG ,  Hoo Keun PARK ,  Byung Ju LEE

IPC: H01L27/15 ,  H01L33/50 ,  H01L33/58

Abstract: A display device includes a substrate; a first electrode and a second electrode arranged to be spaced apart from each other on the substrate; a first insulating layer on the substrate; a light emitting element on the first insulating layer, located between the first electrode and the second electrode, and including a first end portion and a second end portion; a third electrode on the substrate and electrically connected to the first electrode and the first end portion; a fourth electrode on the substrate and electrically connected to the second electrode and the second end portion; a second insulating layer on the substrate and covering the light emitting element, the third electrode, and the fourth electrode; and a light diffusion layer on the second insulating layer and including a light diffusion particle.