公开(公告)号：US12295200B2

公开(公告)日：2025-05-06

申请号：US17468146

申请日：2021-09-07

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Wonjae Joo ,  Hyun Koo ,  Ajeong Choi

IPC: H10K50/852 ,  H10K50/13 ,  H10K50/15 ,  H10K50/16 ,  H10K50/856 ,  H10K102/00

Abstract: A light-emitting device includes: a reflective layer; a first electrode provided on the reflective layer; a second electrode facing the first electrode; a first emission layer provided between the first electrode and the second electrode; a second emission layer provided between the first emission layer and the second electrode, and a first partial transmission mirror provided between the first emission layer and the second emission layer so that a first or higher order resonance mode is formed between the reflective layer and the first partial transmission mirror, and a second or higher order resonance mode is formed between the reflective layer and the second electrode.

公开(公告)号：US12161017B2

公开(公告)日：2024-12-03

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

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：US11980052B2

公开(公告)日：2024-05-07

申请号：US17154165

申请日：2021-01-21

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sunghoon Lee ,  MyongJong Kwon ,  Wonjae Joo

IPC: H10K50/854 ,  H10K50/15 ,  H10K50/16 ,  H10K50/17 ,  H10K50/80 ,  H10K71/00

CPC classification number: H10K50/854 ,  H10K50/15 ,  H10K50/16 ,  H10K50/171 ,  H10K50/868 ,  H10K71/00

Abstract: A metasurface includes a substrate with a first surface area having first surface energy, and a second surface area formed to surround the first surface area and having second surface energy less than the first surface energy, a polymer layer provided on the substrate at a position corresponding to the first surface area and including a polymer material and a metal reflective layer provided on the polymer layer and having a phase modulation surface including metal.

公开(公告)号：US11038148B2

公开(公告)日：2021-06-15

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：US10903454B2

公开(公告)日：2021-01-26

申请号：US16752067

申请日：2020-01-24

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：US10816828B2

公开(公告)日：2020-10-27

申请号：US15802086

申请日：2017-11-02

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  THE BOARD OF TRUSTEES OF THE LELAND STANFORD JR. UNIVERSITY

Inventor： Wonjae Joo ,  Juhyung Kang ,  Soojin Kim ,  Mark L. Brongersma ,  Shanhui Fan

IPC: G02F1/01 ,  G02F1/19 ,  G02F1/17 ,  G02F1/015

Abstract: A multi-stack graphene structure includes a graphene stack that includes graphene layers including amorphous graphene and thin film dielectric layers. The graphene layers include amorphous graphene. The graphene layers and the thin dielectric layers are alternately stacked on one another. The multi-stack graphene structure also includes an electric field former configured to apply an electric field to the graphene layers.

公开(公告)号：US12161018B2

公开(公告)日：2024-12-03

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

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：US11937441B2

公开(公告)日：2024-03-19

申请号：US18325713

申请日：2023-05-30

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：US11726250B2

公开(公告)日：2023-08-15

申请号：US17101935

申请日：2020-11-23

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  The Board of Trustees of the Leland Stanford Junior University

Inventor： Wonjae Joo ,  Mark L. Brongersma ,  Junghyun Park

IPC: G02B5/32 ,  G02F1/29 ,  G03H1/26 ,  G03H1/28 ,  G03H1/04 ,  G02B6/293

CPC classification number: G02B5/32 ,  G02B6/2931 ,  G02F1/292 ,  G03H1/26 ,  G03H1/2645 ,  G03H1/28 ,  G03H2001/0473 ,  G03H2001/266 ,  G03H2222/13 ,  G03H2222/14

Abstract: A beam steering method and device are provided. The beam steering method includes outputting, from a hologram recording medium on which a plurality of signal light beams having different steering information are recorded, signal light beam having specific steering information, by making reference light having a specific characteristic incident on the hologram recording medium. The method further includes obtaining information about an object existing in the external environment based on the output signal light.

公开(公告)号：US11677036B2

公开(公告)日：2023-06-13

申请号：US17707076

申请日：2022-03-29

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jeongyub Lee ,  Woong Ko ,  Changseung Lee ,  Hongkyu Park ,  Chanwook Baik ,  Hongseok Lee ,  Wonjae Joo

IPC: H01L31/0352 ,  H01L27/144 ,  H01L31/02 ,  H01L31/0224 ,  H01L31/0288 ,  H01L31/105 ,  H01L31/18

CPC classification number: H01L31/035281 ,  H01L27/1443 ,  H01L27/1446 ,  H01L31/02005 ,  H01L31/02019 ,  H01L31/0288 ,  H01L31/022408 ,  H01L31/105 ,  H01L31/1804 ,  H01L31/1864

Abstract: A meta optical device configured to sense incident light includes a plurality of nanorods each having a shape dimension less than a wavelength of the incident light. Each nanorod includes a first conductivity type semiconductor layer, an intrinsic semiconductor layer, and a second conductivity type semiconductor layer. The meta optical device may separate and sense wavelengths of the incident light.