JP2015523689A - 有機発光ダイオード(oled)素子用積層体、その製造方法、及びこれを備える有機発光ダイオード(oled)素子 - Google Patents
有機発光ダイオード(oled)素子用積層体、その製造方法、及びこれを備える有機発光ダイオード(oled)素子 Download PDFInfo
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- JP2015523689A JP2015523689A JP2015517191A JP2015517191A JP2015523689A JP 2015523689 A JP2015523689 A JP 2015523689A JP 2015517191 A JP2015517191 A JP 2015517191A JP 2015517191 A JP2015517191 A JP 2015517191A JP 2015523689 A JP2015523689 A JP 2015523689A
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- oled
- emitting diode
- light emitting
- organic light
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Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/85—Arrangements for extracting light from the devices
- H10K50/854—Arrangements for extracting light from the devices comprising scattering means
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/001—General methods for coating; Devices therefor
- C03C17/002—General methods for coating; Devices therefor for flat glass, e.g. float glass
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/006—Surface treatment of glass, not in the form of fibres or filaments, by coating with materials of composite character
- C03C17/007—Surface treatment of glass, not in the form of fibres or filaments, by coating with materials of composite character containing a dispersed phase, e.g. particles, fibres or flakes, in a continuous phase
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
- C03C17/3411—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions with at least two coatings of inorganic materials
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
- C03C17/3411—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions with at least two coatings of inorganic materials
- C03C17/3429—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions with at least two coatings of inorganic materials at least one of the coatings being a non-oxide coating
- C03C17/3435—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions with at least two coatings of inorganic materials at least one of the coatings being a non-oxide coating comprising a nitride, oxynitride, boronitride or carbonitride
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
- C03C17/42—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating of an organic material and at least one non-metal coating
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
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Abstract
Description
本発明の一実施形態に係る有機発光ダイオード(OLED)素子用積層体20は、有機発光ダイオード(OLED)素子10において生成された光が外部に取り出される効率を向上させるために、有機発光ダイオード(OLED)素子10(特に、背面発光構造)の有機発光ダイオード(OLED)素子の透光性電極層300の上に形成される。
第1の領域D1は、全体の固形粒子211の90%以上が存在する領域であり、前記界面から内部光取出層200の総厚さの1/2〜2/3に至るまでの領域である。すなわち、固形粒子211のほとんどは第1の領域D1内に存在し、この第1の領域D1は、後述する固形粒子211を含有する第1のフリットペーストにより形成される。
一方、散乱要素210を構成する固形粒子211及び空隙212の個々の濃度に加えて、全体の散乱要素210の分布もまた重要であるが、散乱要素210の濃度は、透光性基板100と内部光取出層200との間の界面から自由領域Fの境界に進むにつれて次第に低くなるような分布を示す。図3のグラフは、内部光取出層200の厚さに対して正規化を行ったときの散乱要素210の濃度を示している。なお、図4は、図3の散乱要素210の濃度分布に対応する内部光取出層200を走査型電子顕微鏡(SEM)で撮影した写真であり、写真中、相対的に暗い要素は固形粒子211であり、相対的に明るい要素は空隙212である。
有機発光ダイオード(OLED)素子10において生成された光の外部への取出効率を向上させるために、本発明の一実施形態に係る有機発光ダイオード(OLED)素子用積層体20において最も重要な構成要素は内部光取出層200であるが、特に、本発明の実施形態においては、製造過程中に固形粒子211及び空隙212からなる散乱要素210の濃度及び分布を制御するためにガラス物質で内部光取出層200を形成している。
以下、本発明の一実施形態に係る有機発光ダイオード(OLED)素子用積層体20の製造方法について説明する。
図1は、本発明の一実施形態に係る有機発光ダイオード(OLED)素子用積層体20を備える有機発光ダイオード(OLED)素子10を示すものである。
Claims (24)
- 透光性基板と、前記透光性基板の一方の面に形成される内部光取出層と、を備える有機発光ダイオード(OLED)素子用積層体において、
前記内部光取出層は、
固形粒子及び空隙からなる散乱要素を含有する領域であって、前記固形粒子の濃度は前記透光性基板との界面から遠ざかるにつれて低くなる一方、前記空隙の濃度は前記透光性基板との界面から遠ざかるにつれて高くなる散乱領域と、
前記界面の向こう側の前記内部光取出層の表面から所定の深さまで前記散乱要素が存在しない自由領域と、
を備えることを特徴とする有機発光ダイオード(OLED)素子用積層体。 - 前記固形粒子は、前記界面から前記内部光取出層の総厚さの1/2〜2/3に至るまでの第1の領域内に全体の固形粒子の約90%以上が存在することを特徴とする請求項1に記載の有機発光ダイオード(OLED)素子用積層体。
- 前記第1の領域の境界と前記自由領域の境界との間の領域である第2の領域における前記空隙の濃度は、前記第1の領域における空隙の濃度よりも高いことを特徴とする請求項1又は請求項2に記載の有機発光ダイオード(OLED)素子用積層体。
- 前記第1の領域の厚さは約5〜15μmであり、前記第2の領域の厚さは約3〜10μmであり、前記内部光取出層の総厚さは約8〜25μmであることを特徴とする請求項3に記載の有機発光ダイオード(OLED)素子用積層体。
- 前記自由領域の厚さは、約0.5〜2.0μmであることを特徴とする請求項4に記載の有機発光ダイオード(OLED)素子用積層体。
- 前記散乱要素の濃度は、前記界面から前記自由領域の境界に進むにつれて次第に低くなることを特徴とする請求項1から請求項5のうちのいずれか一項に記載の有機発光ダイオード(OLED)素子用積層体。
- 前記固形粒子は、SiO2、TiO2およびZrO2よりなる群から選ばれる少なくとも一種以上を含むことを特徴とする請求項1から請求項6のうちのいずれか一項に記載の有機発光ダイオード(OLED)素子用積層体。
- 前記内部光取出層は、ガラス物質を含むことを特徴とする請求項1から請求項7のうちのいずれか一項に記載の有機発光ダイオード(OLED)素子用積層体。
- 前記ガラス物質は、約55〜84重量%のBi2O3と、約0〜20重量%のBaOと、約5〜20重量%のZnOと、約1〜7重量%のAl2O3と、約5〜15重量%のSiO2及び約5〜20重量%のB2O3を含み、且つ、前記ガラス物質は、約0.05〜3重量%のNa2O及び/又は約0〜0.3重量%のCeO2を選択的にさらに含むことを特徴とする請求項8に記載の有機発光ダイオード(OLED)素子用積層体。
- 前記内部光取出層の上に形成された透光性のバリア層をさらに備えることを特徴とする請求項1から請求項9のうちのいずれか一項に記載の有機発光ダイオード(OLED)素子用積層体。
- 前記バリア層は、SiO2及びSi3N4よりなる群から選ばれる少なくとも一種を含み、且つ、前記バリア層は、単層又は複層として形成されることを特徴とする請求項10に記載の有機発光ダイオード(OLED)素子用積層体。
- 前記バリア層は、約5〜50nmの厚さを有することを特徴とする請求項10に記載の有機発光ダイオード(OLED)素子用積層体。
- 透光性基板と、
前記透光性基板の上に形成され、固形粒子及び空隙からなる散乱要素を含有する領域であって、前記固形粒子の濃度は前記透光性基板との界面から遠ざかるにつれて低くなる一方、前記空隙の濃度は前記透光性基板との界面から遠ざかるにつれて高くなる散乱領域と、前記界面の向こう側の前記内部光取出層の表面から所定の深さまで前記散乱要素が存在しない自由領域と、を備える内部光取出層と、
前記内部光取出層の上に形成される透光性電極層と、
前記透光性電極層の上に形成される有機層と、
前記有機層の上に形成される反射電極と、
を備えることを特徴とする有機発光ダイオード(OLED)素子。 - 前記固形粒子は、前記界面から前記内部光取出層の総厚さの1/2〜2/3に至るまでの第1の領域内に全体の固形粒子の約90%以上が存在することを特徴とする請求項13に記載の有機発光ダイオード(OLED)素子。
- 前記第1の領域の境界と前記自由領域の境界との間の領域である第2の領域における前記空隙の濃度は、前記第1の領域における空隙の濃度よりも高いことを特徴とする請求項14に記載の有機発光ダイオード(OLED)素子。
- 前記散乱要素の濃度は、前記界面から前記自由領域の境界に進むにつれて次第に低くなることを特徴とする請求項13から請求項15のうちのいずれか一項に記載の有機発光ダイオード(OLED)素子。
- 前記内部光取出層は、約55〜84重量%のBi2O3と、約0〜20重量%のBaOと、約5〜20重量%のZnOと、約1〜7重量%のAl2O3と、約5〜15重量%のSiO2及び約5〜20重量%のB2O3を含み、前記内部光取出層は、約0.05〜3重量%のNa2O及び/又は約0〜0.3重量%のCeO2を選択的にさらに含むことを特徴とする請求項13から請求項16のうちのいずれか一項に記載の有機発光ダイオード(OLED)素子。
- 前記内部光取出層と透光性電極層との間に単層又は複層として形成され、SiO2及びSi3N4よりなる群から選ばれる少なくとも一種を含むバリア層をさらに備えることを特徴とする請求項13から請求項17のうちのいずれか一項に記載の有機発光ダイオード(OLED)素子。
- 前記バリア層は、約5〜50nmの厚さを有することを特徴とする請求項18に記載の有機発光ダイオード(OLED)素子。
- 透光性基板と、前記透光性基板の一方の面に形成された内部光取出層と、を備える有機発光ダイオード(OLED)素子用積層体において、
前記内部光取出層は、約55〜84重量%のBi2O3と、約0〜20重量%のBaOと、約5〜20重量%のZnOと、約1〜7重量%のAl2O3と、約5〜15重量%のSiO2及び約5〜20重量%のB2O3を含むガラス物質を含むことを特徴とする有機発光ダイオード(OLED)素子用積層体。 - 前記ガラス物質は、約0.05〜3重量%のNa2Oを含むことを特徴とする請求項20に記載の有機発光ダイオード(OLED)素子用積層体。
- 前記ガラス物質は、不可避的な微量を除いては、TiO2又はZrO2を含有しないことを特徴とする請求項20又は請求項21に記載の有機発光ダイオード(OLED)素子用積層体。
- 前記ガラス物質は、約65〜80重量%のBi2O3及び好ましくは約0〜5重量%のBaOを含むことを特徴とする請求項20から請求項22のうちのいずれか一項に記載の有機発光ダイオード(OLED)素子用積層体。
- 請求項20から請求項23のうちのいずれか一項に記載の内部光取出層と、
前記内部光取出層の上に形成される透光性電極層と、
前記透光性電極層の上に形成される有機層と、
前記有機層の上に形成される反射電極と、
を備えることを特徴とする有機発光ダイオード(OLED)素子。
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US61/659,597 | 2012-06-14 | ||
KR1020120063851A KR101715112B1 (ko) | 2012-06-14 | 2012-06-14 | Oled 소자용 적층체, 그 제조방법 및 이를 구비한 oled 소자 |
KR10-2012-0063851 | 2012-06-14 | ||
PCT/KR2013/005290 WO2013187735A1 (en) | 2012-06-14 | 2013-06-14 | Layered structure for oled device, method for manufacturing the same, and oled device having the same |
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JP (2) | JP2015523689A (ja) |
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MY178382A (en) | 2020-10-10 |
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EA030781B1 (ru) | 2018-09-28 |
US20150179979A1 (en) | 2015-06-25 |
CN104364928A (zh) | 2015-02-18 |
CN104364928B (zh) | 2017-12-05 |
EA201590012A1 (ru) | 2015-07-30 |
US9825258B2 (en) | 2017-11-21 |
EP2862212A4 (en) | 2016-07-06 |
JP2015523690A (ja) | 2015-08-13 |
EP2862213A4 (en) | 2016-05-25 |
KR101715112B1 (ko) | 2017-03-10 |
EA201590015A1 (ru) | 2015-07-30 |
KR20130140443A (ko) | 2013-12-24 |
CN104350629A (zh) | 2015-02-11 |
EP2862212B1 (en) | 2021-03-17 |
WO2013187735A1 (en) | 2013-12-19 |
EP2862213A1 (en) | 2015-04-22 |
EP2862212A1 (en) | 2015-04-22 |
JP6220870B2 (ja) | 2017-10-25 |
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