公开(公告)号：US11469391B2

公开(公告)日：2022-10-11

申请号：US17235462

申请日：2021-04-20

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hyun Koo ,  Wonjae Joo ,  Ajeong Choi

IPC: H01L51/52 ,  H01L27/32 ,  H01L51/50

Abstract: A light-emitting device with light emission efficiency and a display apparatus are provided. The light-emitting device includes a first organic light emission material layer generating light of a first wavelength, a second organic light emission material layer generating light of a second wavelength different from the first wavelength, and a third organic light emission material layer generating light of a third wavelength different from the first and second wavelengths, the first organic light emission material layer may be located at a position comprising a first antinode having a resonance wavelength resonating in a micro cavity, and the second organic light emission material layer and the third organic light emission material layer may be located at a position comprising a second antinode having the resonance wavelength resonating in the micro cavity.

公开(公告)号：US20200227685A1

公开(公告)日：2020-07-16

申请号：US16695404

申请日：2019-11-26

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jisoo Kyoung ,  Wonjae Joo

IPC: H01L51/52 ,  H01L27/32 ,  H01L51/50

Abstract: An OLED apparatus includes a plurality of blue pixels configured to emit blue light, a plurality of green pixels configured to emit green light, and a plurality of red pixels configured to emit red light. Each of the plurality of blue, green, and red pixels includes a reflection layer; a first electrode arranged on the reflection layer; a light-emitting region arranged on the first electrode; and a second electrode arranged on the light-emitting region. An upper surface of the reflection layer of the blue pixel is continuously flat, and an upper surface of the reflection layer of the green pixel and an upper surface of the reflection layer of the red pixel are level with each other. Each of the green pixel or each of the red pixel includes a plurality of nano-structures protruding from a bottom surface of the reflection layer to the upper surface of the reflection layer.

公开(公告)号：US11943952B2

公开(公告)日：2024-03-26

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: 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：US11940637B2

公开(公告)日：2024-03-26

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: H10K59/35 ,  G02B5/22 ,  H10K59/121 ,  H10K59/123

CPC classification number: G02B5/223 ,  H10K59/1213 ,  H10K59/123 ,  H10K59/35

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：US20230240112A1

公开(公告)日：2023-07-27

申请号：US17888878

申请日：2022-08-16

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sunjin Song ,  Hyun Koo ,  Wonjae Joo ,  Juncheol Bae

IPC: H01L27/32 ,  H01L51/52 ,  H01L51/50

CPC classification number: H01L27/322 ,  H01L51/5271 ,  H01L51/5265 ,  H01L51/5036

Abstract: A display apparatus includes first to third pixels, and the first pixel includes a reflective layer; a first electrode; a light emitting layer; a second electrode; and a first color filter to transmit light of the first wavelength band. The reflective layer and the second electrode define a micro-cavity in which the light of the first wavelength band resonates. The light emitting layer includes a first organic light emitting material layer which emits the light of the first wavelength band, a second organic light emitting material layer which emits the light of the second wavelength band, and a third organic light emitting material layer which emits the light of the third wavelength band.

公开(公告)号：US11706940B2

公开(公告)日：2023-07-18

申请号：US17245482

申请日：2021-04-30

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY

Inventor： Juncheol Bae ,  Wonseok Jang ,  Wonjae Joo ,  Dongmok Whang

IPC: H10K50/818 ,  H10K50/852 ,  H10K50/856 ,  H10K71/00

CPC classification number: H10K50/818 ,  H10K50/852 ,  H10K50/856 ,  H10K71/00

Abstract: Provided a light emitting device including a reflective layer including a plurality of nanostructures that are periodically two-dimensionally arranged, 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 a second electrode disposed on the organic emission layer, wherein the planarization layer includes a conductive material that is transparent with respect to light emitted by the organic emission layer, and wherein the planarization layer is disposed on upper surfaces of the plurality of nanostructures such that an air gap is provided between adjacent nanostructures of the plurality of nanostructures.

公开(公告)号：US11563199B2

公开(公告)日：2023-01-24

申请号：US17162588

申请日：2021-01-29

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jisoo Kyoung ,  Wonjae Joo ,  Youngnam Kwon ,  Byonggwon Song

IPC: H01L51/52 ,  H01L27/32 ,  H01L51/50

Abstract: A light emitting device and a display apparatus including a phase shifting mirror are provided. The light emitting device includes a first electrode, a light emitting structure, a second electrode, and a phase shifting mirror. The phase shifting mirror has a number of patterns arranged in a periodic manner with an interval between adjacent patterns. Each pattern has a top surface and a side surface between the top surface of the respective pattern and the top surface of the first electrode. A first width at a bottom portion of the respective pattern directly adjacent to the top surface of the first electrode is greater than a second width of the top surface of the respective pattern, and the first width and the second width are less than a wavelength of light generated in the light emitting structure.

公开(公告)号：US11522164B2

公开(公告)日：2022-12-06

申请号：US17141799

申请日：2021-01-05

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Wonjae Joo ,  Jisoo Kyoung

IPC: H01L51/52 ,  H01L27/32 ,  H01L51/50

Abstract: A light-emitting device includes a metal reflection layer having a phase modulation surface, a color conversion layer provided on the phase modulation surface of the metal reflection layer, a first electrode provided on the color conversion layer, a hole injection and transport layer provided on the first electrode, a blue organic light-emitting layer provided on the hole injection and transport layer, an electron injection and transport layer provided on the blue organic light-emitting layer, and a second electrode provided on the electron injection and transport layer. The phase modulation surface of the metal reflection layer generates magnetic resonance with respect to incident light. The color conversion layer includes a photoluminescent material.

公开(公告)号：US20210280832A1

公开(公告)日：2021-09-09

申请号：US17112363

申请日：2020-12-04

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hyun KOO ,  Sunjin Song ,  Wonjae Joo ,  Sunghyun Han

IPC: H01L51/52 ,  H01L51/50 ,  H01L27/32

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：US11621309B2

公开(公告)日：2023-04-04

申请号：US17135546

申请日：2020-12-28

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

Inventor： Sunghoon Lee ,  Seokho Song ,  Wonjae Joo

IPC: H01L33/00 ,  H01L21/00 ,  H01L27/32 ,  G02B27/01 ,  H01L51/52

Abstract: A light emitting device includes a metal reflective layer including a phase modulation surface on which oblong phase modulation elements are formed; a first electrode provided on the metal reflective layer; an organic emission layer that is provided on the first electrode and that emits light; and a second electrode provided on the organic emission layer, wherein the oblong phase modulation elements are arranged to form a geometric phase lens.