JP2020513158A - 有機エレクトロルミネセンスデバイスおよびディスプレイ装置 - Google Patents
有機エレクトロルミネセンスデバイスおよびディスプレイ装置 Download PDFInfo
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- 230000000903 blocking effect Effects 0.000 claims abstract description 66
- 238000004770 highest occupied molecular orbital Methods 0.000 claims abstract description 50
- 238000004768 lowest unoccupied molecular orbital Methods 0.000 claims abstract description 48
- 230000005525 hole transport Effects 0.000 claims abstract description 38
- 239000000463 material Substances 0.000 claims description 41
- 150000004982 aromatic amines Chemical class 0.000 claims description 14
- 239000000758 substrate Substances 0.000 claims description 7
- 125000003003 spiro group Chemical group 0.000 claims description 5
- 238000002347 injection Methods 0.000 description 21
- 239000007924 injection Substances 0.000 description 21
- 230000006872 improvement Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000037230 mobility Effects 0.000 description 4
- 238000005215 recombination Methods 0.000 description 3
- 230000006798 recombination Effects 0.000 description 3
- 238000009751 slip forming Methods 0.000 description 3
- 239000000969 carrier Substances 0.000 description 2
- 238000005401 electroluminescence Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000004773 frontier orbital Methods 0.000 description 2
- 239000000370 acceptor Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004776 molecular orbital Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
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- H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
- H10K50/11—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers
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- H10K50/11—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers
- H10K50/125—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers specially adapted for multicolour light emission, e.g. for emitting white light
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- H10K50/14—Carrier transporting layers
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- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
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- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/30—Devices specially adapted for multicolour light emission
- H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
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- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/60—Organic compounds having low molecular weight
- H10K85/631—Amine compounds having at least two aryl rest on at least one amine-nitrogen atom, e.g. triphenylamine
- H10K85/633—Amine compounds having at least two aryl rest on at least one amine-nitrogen atom, e.g. triphenylamine comprising polycyclic condensed aromatic hydrocarbons as substituents on the nitrogen atom
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- H10K2101/00—Properties of the organic materials covered by group H10K85/00
- H10K2101/30—Highest occupied molecular orbital [HOMO], lowest unoccupied molecular orbital [LUMO] or Fermi energy values
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- H10K50/00—Organic light-emitting devices
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- H10K85/615—Polycyclic condensed aromatic hydrocarbons, e.g. anthracene
- H10K85/626—Polycyclic condensed aromatic hydrocarbons, e.g. anthracene containing more than one polycyclic condensed aromatic rings, e.g. bis-anthracene
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Abstract
Description
一例として青サブピクセル発光層を使用して説明する。
一例として緑サブピクセル発光層を使用して説明する。
Claims (10)
- 第1の導電層群と、
第2の導電層群と、
前記第1の導電層群と前記第2の導電層群との間に配置され、前記2つの群とオーミック接触している発光層と
を備え、
前記第1の導電層群は前記発光層とオーミック接触している電子ブロック層および前記電子ブロック層とオーミック接触している正孔輸送層を備え、
前記電子ブロック層のHOMOエネルギーレベルは前記正孔輸送層のHOMOエネルギーレベルと前記発光層のHOMOエネルギーレベルの間にあり、前記電子ブロック層のLUMOエネルギーレベルは、前記正孔輸送層のLUMOエネルギーレベルおよび前記発光層のLUMOエネルギーレベルよりも浅い、ことを特徴とする有機エレクトロルミネセンスデバイス。 - 前記正孔輸送層のHOMOエネルギーレベルは前記発光層のHOMOエネルギーレベルに等しいか、またはそれより浅く、前記正孔輸送層のLUMOレベルは前記発光層のLUMOレベルに等しいか、またはそれより浅い、ことを特徴とする請求項1に記載の有機エレクトロルミネセンスデバイス。
- 前記正孔輸送層についてのエネルギーレベル差は2.7eVから3.5eVの範囲であり、前記発光層のホスト材料についてのエネルギーレベル差は2.7eVから3.4eVの範囲であり、前記電子ブロック層のHOMOエネルギーレベルは5.2eVから5.5eVの範囲であり、前記電子ブロック層のLUMOエネルギーレベルは1.9eVから2.1eVの範囲であり、前記電子ブロック層のHOMOエネルギーレベルとLUMOエネルギーレベルの間のエネルギーレベル差は3.2eVより大きい、ことを特徴とする請求項1または2に記載の有機エレクトロルミネセンスデバイス。
- 前記発光層は蛍光材料から製造される青サブピクセル発光層を備え、前記青サブピクセル発光層の下に配置された前記電子ブロック層はスピロフルオレン基を含む単一芳香族アミンの構造を有する材料から製造される、ことを特徴とする請求項1に記載の有機エレクトロルミネセンスデバイス。
- 前記単一芳香族アミンの構造の構造式は下記:
- 前記正孔輸送層についてのエネルギーレベル差は2.7eVから3.5eVの範囲であり、前記発光層のホスト材料についてのエネルギーレベル差は2.8eVから3.5eVの範囲であり、前記電子ブロック層のHOMOエネルギーレベルは5.2eVから5.5eVの範囲であり、前記電子ブロック層のLUMOエネルギーレベルは1.8eVから2.0eVの範囲であり、前記電子ブロック層のHOMOエネルギーレベルとLUMOエネルギーレベルの間のエネルギーレベル差は3.2eVより大きい、ことを特徴とする請求項1または2に記載の有機エレクトロルミネセンスデバイス。
- 前記発光層は、バイポーラ燐光性材料から製造される緑サブピクセル発光層を含み、前記緑サブピクセル発光層の下に配置された前記電子ブロック層はスピロ環単位を含む単一芳香族アミンの構造を有する材料から製造される、ことを特徴とする請求項1に記載の有機エレクトロルミネセンスデバイス。
- 前記単一芳香族アミンの構造の構造式は下記:
- 前記発光層は青サブピクセル発光層および緑サブピクセル発光層を含み、前記青サブピクセル発光層の下に配置された前記電子ブロック層は50Åから100Åの厚さを有し、前記緑サブピクセル発光層の下に配置された前記電子ブロック層は100Åから400Åの厚さを有し、前記第2の導電層群において前記緑サブピクセル発光層上に配置された前記正孔ブロック層は50Åから100Åの厚さを有する、ことを特徴とする請求項1に記載の有機エレクトロルミネセンスデバイス。
- 基板と、前記基板上に形成された、ことを特徴とする請求項1〜9のいずれか一項に記載の有機エレクトロルミネセンスデバイスとを備える、ディスプレイ装置。
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CN201710775994.8A CN109427985B (zh) | 2017-08-31 | 2017-08-31 | 有机电致发光器件及显示装置 |
CN201710775994.8 | 2017-08-31 | ||
PCT/CN2018/085017 WO2019041862A1 (zh) | 2017-08-31 | 2018-04-28 | 有机电致发光器件及显示装置 |
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JP2020513158A true JP2020513158A (ja) | 2020-04-30 |
JP6894980B2 JP6894980B2 (ja) | 2021-06-30 |
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US (1) | US11349093B2 (ja) |
EP (1) | EP3678200A4 (ja) |
JP (1) | JP6894980B2 (ja) |
KR (1) | KR102251618B1 (ja) |
CN (1) | CN109427985B (ja) |
TW (1) | TWI667785B (ja) |
WO (1) | WO2019041862A1 (ja) |
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US11925046B2 (en) * | 2019-08-02 | 2024-03-05 | Kyushu University, National University Corporation | Light-emitting device, light-emitting method, and organic light-emitting element |
CN111063818A (zh) * | 2019-12-26 | 2020-04-24 | 武汉华星光电半导体显示技术有限公司 | 显示面板及其制备方法 |
KR20210085531A (ko) * | 2019-12-30 | 2021-07-08 | 엘지디스플레이 주식회사 | 유기발광다이오드 및 유기발광장치 |
KR102599003B1 (ko) | 2020-04-20 | 2023-11-03 | 삼성에스디아이 주식회사 | 유기 광전자 소자용 조성물, 유기 광전자 소자 및 표시 장치 |
CN111697146B (zh) * | 2020-06-11 | 2022-04-19 | 云谷(固安)科技有限公司 | 发光器件及显示面板 |
CN115513389A (zh) * | 2021-06-23 | 2022-12-23 | 京东方科技集团股份有限公司 | 一种蓝光发光器件、其制作方法及显示装置 |
JP2024519155A (ja) * | 2022-01-27 | 2024-05-08 | 中国科学院理化技術研究所 | 有機電界発光素子 |
CN116669441A (zh) * | 2023-07-31 | 2023-08-29 | 宁德时代新能源科技股份有限公司 | 太阳能电池及其制备方法、光伏组件和光伏装置 |
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- 2018-04-28 JP JP2019554769A patent/JP6894980B2/ja active Active
- 2018-04-28 EP EP18850258.7A patent/EP3678200A4/en not_active Withdrawn
- 2018-04-28 WO PCT/CN2018/085017 patent/WO2019041862A1/zh unknown
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Publication number | Publication date |
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EP3678200A1 (en) | 2020-07-08 |
CN109427985A (zh) | 2019-03-05 |
KR20190121355A (ko) | 2019-10-25 |
US11349093B2 (en) | 2022-05-31 |
KR102251618B1 (ko) | 2021-05-13 |
EP3678200A4 (en) | 2020-10-28 |
TW201842665A (zh) | 2018-12-01 |
JP6894980B2 (ja) | 2021-06-30 |
TWI667785B (zh) | 2019-08-01 |
CN109427985B (zh) | 2019-12-24 |
US20210351370A1 (en) | 2021-11-11 |
WO2019041862A1 (zh) | 2019-03-07 |
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