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：US20240047449A1

公开(公告)日：2024-02-08

申请号：US18483467

申请日：2023-10-09

Applicant: Samsung Display Co., LTD.

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

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

CPC classification number: H01L25/18 ,  G09G3/32 ,  G09G3/2018 ,  H01L27/156 ,  G09G2300/0426 ,  H01L24/05

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：US20230197888A1

公开(公告)日：2023-06-22

申请号：US18081985

申请日：2022-12-15

Applicant: Samsung Display Co., LTD.

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

IPC: H01L33/04 ,  H01L33/00 ,  H01L33/38 ,  H01L21/311

CPC classification number: H01L33/04 ,  H01L33/0075 ,  H01L33/38 ,  H01L21/31144 ,  B82Y40/00

Abstract: Provided herein is a light emitting element and a method of fabricating the light emitting element. The light emitting element includes a first semiconductor layer, a first insulating film disposed on the first semiconductor layer, the first insulating film including a nano-pattern, an active layer disposed in the nano-pattern of the first insulating film, and a second semiconductor layer disposed on the active layer in the nano-pattern of the first insulating film.

公开(公告)号：US20230155063A1

公开(公告)日：2023-05-18

申请号：US17873557

申请日：2022-07-26

Applicant: Samsung Display Co., LTD.

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

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

CPC classification number: H01L33/382 ,  H01L33/62 ,  H01L27/156 ,  H01L33/06

Abstract: The display device is provided. The display device comprises contact electrodes disposed on a substrate, light-emitting elements disposed on the contact electrodes, and an insulating layer defining emission areas corresponded to the light-emitting elements. The light-emitting elements comprise a first light-emitting element that emits a first light having a blue color, a second light-emitting element that emits a second light having a green color, and a third light-emitting element that emits a third light having a red color. A width of the first light-emitting element is greater than a width of the second light-emitting element. The width of the first light-emitting element is greater than a width of the third light-emitting element.

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：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：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.