公开(公告)号：US20220020963A1

公开(公告)日：2022-01-20

申请号：US17154165

申请日：2021-01-21

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sunghoon Lee ,  MyongJong Kwon ,  Wonjae Joo

IPC: H01L51/52 ,  H01L51/50 ,  H01L51/56

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：US11211432B2

公开(公告)日：2021-12-28

申请号：US16812558

申请日：2020-03-09

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Wonjae Joo ,  Jisoo Kyoung ,  Youngnam Kwon

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

Abstract: Provided a light emitting device including a first metal reflection layer including a phase modulation surface configured to magnetically resonate incident light, a color conversion layer provided on the phase modulation surface of the first metal reflection layer and including a photoluminescent material, a first electrode provided on the color conversion layer opposite to the first metal reflection layer, a white organic light emitting layer provided on the first electrode opposite to the color conversion layer, and a second electrode provided on the white organic light emitting layer opposite to the first electrode.

公开(公告)号：US11092546B2

公开(公告)日：2021-08-17

申请号：US16224466

申请日：2018-12-18

Applicant: Samsung Electronics Co., Ltd. ,  The Regents of the University of California

Inventor： Wonjae Joo ,  Jie Yao ,  Xi Wang

IPC: G01N21/552 ,  H01L31/0232 ,  H01L21/24 ,  H01L31/0392 ,  H01L31/028

Abstract: Provided are spectrometers utilizing surface plasmons and surface plasmon resonance. The spectrometer includes a substrate including a region having a permittivity slope (varying permittivity), a dielectric spacer configured to correspond to the region having a permittivity slope, and a detector configured to face the region having a permittivity slope with the dielectric spacer therebetween. The region having a permittivity slope includes a region having a dopant concentration slope (varying concentration).

公开(公告)号：US10950823B2

公开(公告)日：2021-03-16

申请号：US16263080

申请日：2019-01-31

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：US10649303B2

公开(公告)日：2020-05-12

申请号：US15965369

申请日：2018-04-27

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

Inventor： Wonjae Joo ,  Mark L. Brongersma ,  Juhyung Kang

IPC: G02F1/29 ,  G02F1/01

Abstract: An optical device and an optical system including the optical device are provided. The optical device may include a reflective layer and a plurality of nano-beams spaced apart from the reflective layer. The plurality of nano-beams may be formed as a metasurface. The nano-beams may have a pattern structure having a plurality of metasurface forms, and the distance of the gaps between the plurality of nano-beams and the reflective layer may be adjustable individually or as a whole. The optical device may be a beam steering device or an optical phase modulator.

公开(公告)号：US20200058905A1

公开(公告)日：2020-02-20

申请号：US16263080

申请日：2019-01-31

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：US20190195793A1

公开(公告)日：2019-06-27

申请号：US16224466

申请日：2018-12-18

Applicant: Samsung Electronics Co., Ltd. ,  The Regents of the University of California

Inventor： Wonjae Joo ,  Jie Yao ,  Xi Wang

IPC: G01N21/552 ,  H01L31/0232

CPC classification number: G01N21/553 ,  H01L31/0232 ,  H01L31/028 ,  H01L31/03921

Abstract: Provided are spectrometers utilizing surface plasmons and surface plasmon resonance. The spectrometer includes a substrate including a region having a permittivity slope (varying permittivity), a dielectric spacer configured to correspond to the region having a permittivity slope, and a detector configured to face the region having a permittivity slope with the dielectric spacer therebetween. The region having a permittivity slope includes a region having a dopant concentration slope (varying concentration).

公开(公告)号：US12069889B2

公开(公告)日：2024-08-20

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: H10K50/856 ,  H10K50/15 ,  H10K50/16 ,  H10K50/17

CPC classification number: H10K50/856 ,  H10K50/15 ,  H10K50/16 ,  H10K50/171

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.

公开(公告)号：US11963390B2

公开(公告)日：2024-04-16

申请号：US16990516

申请日：2020-08-11

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sunjin Song ,  Wonjae Joo ,  Hyun Koo ,  Jisoo Kyoung ,  Sunghoon Lee

IPC: H10K50/852 ,  H10K50/125 ,  H10K50/13 ,  H10K50/805 ,  H10K50/856 ,  H10K59/30 ,  H10K102/00

CPC classification number: H10K50/852 ,  H10K50/125 ,  H10K50/131 ,  H10K50/805 ,  H10K50/856 ,  H10K59/30 ,  H10K2102/3026 ,  H10K2102/351

Abstract: A light-emitting device and a display apparatus including the same are provided. The light-emitting device includes a metal reflective layer having a phase modulation surface, a first electrode on the metal reflective layer, an organic emission layer which is provided on the first electrode and emits white light, and a second electrode on the organic emission layer. The phase modulation surface includes a plurality of protrusions and a plurality of recesses.

公开(公告)号：US11653528B2

公开(公告)日：2023-05-16

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: 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.