公开(公告)号：US20220376144A1

公开(公告)日：2022-11-24

申请号：US17636218

申请日：2020-02-27

Applicant: Samsung Display Co., LTD.

Inventor： Moon Jung AN ,  Sung Chan JO ,  Hoo Keun PARK ,  Chul Jong YOO ,  Hye Lim KANG ,  Dong Gyun KIM ,  Dong Eon LEE ,  Hyun Min CHO

IPC: H01L33/44 ,  H01L25/16 ,  H01L23/00 ,  H01L33/42

Abstract: A light emitting element includes: a first semiconductor layer doped with a first polarity; a second semiconductor layer doped with a second polarity different from the first polarity; an active layer between the first semiconductor layer and the second semiconductor layer in a first direction; and an insulating film surrounding an outer surface of at least the active layer and extending in the first direction. A thickness of a first portion of the insulating film surrounding the active layer is in a range of 10% to 16% of a diameter of the active layer.

公开(公告)号：US20220367756A1

公开(公告)日：2022-11-17

申请号：US17638169

申请日：2020-02-27

Applicant: Samsung Display Co., LTD.

Inventor： Dong Eon LEE ,  Hoo Keun PARK ,  Moon Jung AN ,  Chul Jong YOO ,  Hye Lim KANG ,  Dong Gyun KIM

IPC: H01L33/38 ,  H01L33/00 ,  H01L33/44 ,  H01L33/62

Abstract: A light emitting element includes: a first semiconductor layer doped with a first polarity; a second semiconductor layer doped with a second polarity different from the first polarity; an active layer between the first semiconductor layer and the second semiconductor layer in a first direction; a first outer film around an outer surface of at least the active layer and extending in the first direction; and a second outer film around an outer surface of a portion of the first semiconductor layer on which the first outer film is not present.

公开(公告)号：US20240304760A1

公开(公告)日：2024-09-12

申请号：US18490907

申请日：2023-10-20

Applicant: Samsung Display Co., LTD.

Inventor： Chul Jong YOO ,  Dae Hyun KIM ,  In Hyuk KIM ,  Dong Kyun SEO ,  Young Chul SIM ,  Tae Ha JIN ,  Hyeong Su CHOI

IPC: H01L33/38 ,  H01L25/075 ,  H01L33/24 ,  H01L33/62

CPC classification number: H01L33/382 ,  H01L25/0753 ,  H01L33/24 ,  H01L33/62

Abstract: A display device includes a light emitting element disposed on a substrate and including a first end portion and a second end portion. The first electrode is electrically connected to the first end portion of the light emitting element. The second electrode is electrically connected to the second end portion of the light emitting element. A first semiconductor layer, a light emitting layer, a second semiconductor layer, and an electrode layer of the light emitting element are sequentially disposed along a longitudinal direction from the second end portion to the first end portion. An insulating film of the light emitting element covers side surfaces of the first semiconductor layer, the light emitting layer, the second semiconductor layer, and the electrode layer, and extends in parallel to the longitudinal direction. A shielding layer is disposed inside the insulating film.

公开(公告)号：US20230352640A1

公开(公告)日：2023-11-02

申请号：US18022402

申请日：2021-08-03

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Chul Jong YOO ,  Dong Eon LEE ,  Myeong Hee KIM ,  Hoo Keun PARK ,  Byung Ju LEE ,  So Young LEE ,  Seung Geun LEE ,  Seung A LEE ,  Jong Won LEE ,  Ji Hyun HAM

IPC: H01L33/60 ,  H01L25/16

CPC classification number: H01L33/60 ,  H01L25/167

Abstract: A includes a substrate including a plurality of pixels, a plurality of transistors disposed on the substrate, a passivation layer overlapping the plurality of transistors, a first electrode and a second electrode disposed on the passivation layer and spaced apart from each other, an insulating layer disposed on the first electrode and the second electrode, a plurality of light emitting elements disposed between the first electrode and the second electrode on the insulating layer and electrically connected to the first electrode and the second electrode, and an insulating reflective layer disposed between the passivation layer and the plurality of light emitting elements.

公开(公告)号：US20230282778A1

公开(公告)日：2023-09-07

申请号：US17992656

申请日：2022-11-22

Applicant: Samsung Display Co., LTD.

Inventor： Dong Gyun KIM ,  Jun Bo SIM ,  Hee Yeon YOO ,  Jeong In CHOI ,  Chul Jong YOO ,  Yo Han LEE ,  Sung Ae JANG ,  Hyun Min CHO ,  Hyung Rae CHA

IPC: H01L33/38 ,  H01L25/075 ,  H01L33/62

CPC classification number: H01L33/382 ,  H01L25/0753 ,  H01L33/62

Abstract: A light-emitting element comprises a core comprising a first semiconductor layer, a second semiconductor layer provided on the first semiconductor layer, and an emissive layer provided between the first semiconductor layer and the second semiconductor layer, and a first element insulating film around a side surface of the core, wherein the first element insulating film comprises a composite of an insulating member and an elastic member.

公开(公告)号：US20230006119A1

公开(公告)日：2023-01-05

申请号：US17784462

申请日：2020-11-13

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Won Sik OH ,  Su Mi MOON ,  Sin Chul KANG ,  Hyun Min CHO ,  Xinxing LI ,  Chul Jong YOO

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

Abstract: A display device may include a substrate including pixel areas, and a pixel disposed in each of the pixel area. The pixel may include a transistor and a driving voltage line disposed in the substrate, first and second electrodes spaced apart from each other, a bank pattern disposed on the first and second electrodes, respectively, intermediate layers disposed on the bank pattern, light emitting elements disposed between two adjacent intermediate layers of the intermediate layers, a first contact electrode disposed on one of the two adjacent intermediate layers and electrically connected to an end of each of the light emitting elements, and a second contact electrode disposed on another one of the two adjacent intermediate layers and electrically connected to another end of each of the light emitting elements.

公开(公告)号：US20220173277A1

公开(公告)日：2022-06-02

申请号：US17389127

申请日：2021-07-29

Applicant: Samsung Display Co., LTD.

Inventor： So Young LEE ,  Dong Uk KIM ,  Chul Jong YOO ,  Se Young KIM

IPC: H01L33/44 ,  H01L33/20 ,  H01L25/075 ,  H01L33/00 ,  H01L25/16

Abstract: A display device, a light-emitting element, and a method of manufacturing a light-emitting element are provided. A display device includes: a first electrode and a second electrode spaced apart from each other; and light-emitting elements between the first electrode and the second electrode, and each of the light-emitting elements includes a first area having a first diameter, a second area having a second diameter greater than the first diameter, a first insulating film surrounding the first area, and a second insulating film on the first insulating film, and the second insulating film surrounds the second area exposed by the first insulating film.