公开(公告)号：US20240244875A1

公开(公告)日：2024-07-18

申请号：US18586704

申请日：2024-02-26

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sunjin SONG ,  Seokho SONG ,  Wonjae JOO

IPC: H10K50/818 ,  H10K50/852 ,  H10K59/121

CPC classification number: H10K50/818 ,  H10K50/852 ,  H10K59/121

Abstract: Provided is a light-emitting device including a reflective layer including a plurality of nano-structures two-dimensionally disposed regularly and a low-refractive-index layer disposed adjacent to the plurality of nano-structures, a first electrode disposed on the reflective layer, an organic emission layer disposed on the first electrode, and a second electrode disposed on the organic emission layer, wherein each of the plurality of nano-structures includes a non-metallic material, and the low-refractive-index layer includes a dielectric material having a second refractive index lower than a first refractive index of the non-metallic material.

公开(公告)号：US20220271259A1

公开(公告)日：2022-08-25

申请号：US17399177

申请日：2021-08-11

Applicant: SAMSUNG ELECTRONICS CO, LTD.

Inventor： Sunjin SONG ,  MyongJong KWON ,  Wonjae JOO

IPC: H01L51/52 ,  H01L27/32

Abstract: Provided are a light-emitting device and a display apparatus. The light-emitting device includes: a reflective layer including a plurality of nano-structures that are two-dimensionally arranged in a regular periodic structure; a first electrode disposed on the plurality of nano-structures of the reflective layer; an organic emission layer disposed on the first electrode; and a second electrode disposed on the organic emission layer. An interval between adjacent nano-structures in a central portion of the reflective layer or an interval between adjacent nano-structures in a peripheral portion surrounding the central portion of the reflective layer is equal to or less than 70 nm.

公开(公告)号：US20230247859A1

公开(公告)日：2023-08-03

申请号：US18132806

申请日：2023-04-10

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hyun KOO ,  Sunjin SONG ,  Wonjae JOO ,  Sunghyun HAN

IPC: H10K50/86 ,  H10K50/17 ,  H10K50/852 ,  H10K50/856 ,  H10K59/35 ,  H10K59/80

CPC classification number: H10K50/865 ,  H10K50/171 ,  H10K50/852 ,  H10K50/856 ,  H10K59/351 ,  H10K59/876

Abstract: Provide is a light emitting device including a reflective layer including a phase modulation surface, a planarization layer disposed on the reflective layer, a first electrode disposed on the planarization layer, an organic emission layer disposed on the first electrode and configured to emit visible light that includes light of a first wavelength and light of a second wavelength that is shorter than the first wavelength, and a second electrode disposed on the organic emission layer, wherein the reflective layer and the second electrode form a micro cavity configured to resonate the light of the first wavelength, and wherein the planarization layer includes a light absorber configured to absorb the light of the second wavelength.

公开(公告)号：US20230082071A1

公开(公告)日：2023-03-16

申请号：US17666084

申请日：2022-02-07

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  IUCF-HYU (INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY)

Inventor： Sunjin SONG ,  Seokho SONG ,  Wonjae JOO ,  Myongjong KWON

IPC: G02B5/22 ,  H01L27/32

Abstract: Provided is a color transformation filter including a plurality of nanostructures included in a subpixel and spaced apart from each other, the plurality of nanostructures having a first refractive index, a low refractive index layer provided adjacent to the plurality of nanostructures, the low refractive index layer having a second refractive index less than the first refractive index, and a color transformation element included in the low refractive index layer.

公开(公告)号：US20230247860A1

公开(公告)日：2023-08-03

申请号：US18132835

申请日：2023-04-10

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hyun KOO ,  Sunjin SONG ,  Wonjae JOO ,  Sunghyun HAN

IPC: H10K50/86 ,  H10K50/17 ,  H10K50/852 ,  H10K50/856 ,  H10K59/35 ,  H10K59/80

CPC classification number: H10K50/865 ,  H10K50/171 ,  H10K50/852 ,  H10K50/856 ,  H10K59/351 ,  H10K59/876

Abstract: Provide is a light emitting device including a reflective layer including a phase modulation surface, a planarization layer disposed on the reflective layer, a first electrode disposed on the planarization layer, an organic emission layer disposed on the first electrode and configured to emit visible light that includes light of a first wavelength and light of a second wavelength that is shorter than the first wavelength, and a second electrode disposed on the organic emission layer, wherein the reflective layer and the second electrode form a micro cavity configured to resonate the light of the first wavelength, and wherein the planarization layer includes a light absorber configured to absorb the light of the second wavelength.

公开(公告)号：US20220037613A1

公开(公告)日：2022-02-03

申请号：US17165522

申请日：2021-02-02

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  IUCF-HYU (INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY)

Inventor： Sunjin SONG ,  Seokho SONG ,  Wonjae JOO

IPC: H01L51/52 ,  H01L27/32

Abstract: Provided is a light-emitting device including a reflective layer including a plurality of nano-structures two-dimensionally disposed regularly and a low-refractive-index layer disposed adjacent to the plurality of nano-structures, a first electrode disposed on the reflective layer, an organic emission layer disposed on the first electrode, and a second electrode disposed on the organic emission layer, wherein each of the plurality of nano-structures includes a non-metallic material, and the low-refractive-index layer includes a dielectric material having a second refractive index lower than a first refractive index of the non-metallic material.

公开(公告)号：US20210288290A1

公开(公告)日：2021-09-16

申请号：US17154314

申请日：2021-01-21

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sunghoon LEE ,  Wonjae JOO ,  Sunjin SONG ,  Hyun KOO ,  Sunghyun HAN

IPC: H01L51/52 ,  H01L51/50

Abstract: A light emitting device includes a first electrode; a white organic light emission structure provided on the first electrode; a second electrode provided on the white organic light emission structure; and a reflective layer provided on an opposite side of the first electrode from the white organic light emission structure and including a first reflective region, a second reflective region, and a third reflective region having different heights from one another and forming different separation distances from the second electrode. A plurality of recesses may be provided in at least one of the first reflective region, the second reflective region, and the third reflective region on a surface of the reflective layer, and thus the color purity of the light emitting device may be improved.