JP6568197B2 - 透明拡散性oled基材及び該基材の製造方法 - Google Patents
透明拡散性oled基材及び該基材の製造方法 Download PDFInfo
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- 239000000758 substrate Substances 0.000 title claims description 97
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 239000010410 layer Substances 0.000 claims description 121
- 239000011521 glass Substances 0.000 claims description 109
- 210000003298 dental enamel Anatomy 0.000 claims description 64
- 229910044991 metal oxide Inorganic materials 0.000 claims description 41
- 150000004706 metal oxides Chemical class 0.000 claims description 41
- 238000000034 method Methods 0.000 claims description 25
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 11
- 239000011248 coating agent Substances 0.000 claims description 11
- 238000000576 coating method Methods 0.000 claims description 11
- 229910015902 Bi 2 O 3 Inorganic materials 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 8
- 239000011800 void material Substances 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 6
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 5
- 229910005191 Ga 2 O 3 Inorganic materials 0.000 claims description 4
- 229910006404 SnO 2 Inorganic materials 0.000 claims description 4
- GEIAQOFPUVMAGM-UHFFFAOYSA-N ZrO Inorganic materials [Zr]=O GEIAQOFPUVMAGM-UHFFFAOYSA-N 0.000 claims description 4
- 239000006060 molten glass Substances 0.000 claims description 4
- 239000002356 single layer Substances 0.000 claims description 4
- 238000001354 calcination Methods 0.000 claims description 2
- 238000003475 lamination Methods 0.000 claims 1
- 238000000605 extraction Methods 0.000 description 10
- 238000002844 melting Methods 0.000 description 10
- 230000008018 melting Effects 0.000 description 10
- 238000010304 firing Methods 0.000 description 8
- 239000012044 organic layer Substances 0.000 description 8
- 239000002245 particle Substances 0.000 description 8
- 239000011159 matrix material Substances 0.000 description 7
- 238000000149 argon plasma sintering Methods 0.000 description 6
- 239000003960 organic solvent Substances 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000001856 Ethyl cellulose Substances 0.000 description 3
- ZZSNKZQZMQGXPY-UHFFFAOYSA-N Ethyl cellulose Chemical compound CCOCC1OC(OC)C(OCC)C(OCC)C1OC1C(O)C(O)C(OC)C(CO)O1 ZZSNKZQZMQGXPY-UHFFFAOYSA-N 0.000 description 3
- 239000000975 dye Substances 0.000 description 3
- 229920001249 ethyl cellulose Polymers 0.000 description 3
- 235000019325 ethyl cellulose Nutrition 0.000 description 3
- 238000001755 magnetron sputter deposition Methods 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- 239000005361 soda-lime glass Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- 238000000231 atomic layer deposition Methods 0.000 description 2
- 239000005357 flat glass Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000013642 negative control Substances 0.000 description 2
- 238000007650 screen-printing Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- -1 that is Inorganic materials 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 229910021488 crystalline silicon dioxide Inorganic materials 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000002320 enamel (paints) Substances 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000010191 image analysis Methods 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000007764 slot die coating Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 238000000935 solvent evaporation Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
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Description
(a)屈折率(λ=550nmにて)が1.45と1.65の間であるガラス基材を用意する工程、
(b)前記ガラス基材の1つの面を金属酸化物層で被覆する工程、
(c)前記金属酸化物層を屈折率(λ=550nmにて)が少なくとも1.7であるガラスフリットで被覆する工程、
(d)得られた被覆したガラス基材をガラスフリットのリトルトン温度よりも高い温度で焼成して金属酸化物を溶融しているガラスフリットと反応させ、そしてガラス基材との界面付近のエナメル層の下方部分に埋め込まれた複数の球状空隙を含む高屈折率エナメル層を形成する工程、
を含む、発光デバイスのための積層基材の作製方法である。
(i)屈折率が1.45と1.65の間であるガラス基材、
(ii)屈折率(550nmでの)が少なくとも1.7である高屈折率ガラスエナメル層、
を含む積層基材であって、
高屈折率エナメル層と下にあるガラス基材との界面付近においてエナメル層中に複数の球状空隙が埋め込まれており、球状空隙の少なくとも95%、好ましくは少なくとも99%、そしてより好ましくは本質的にすべてが、エナメル層の厚さの半分よりも有意に小さい直径を有し、且つ下にあるガラス基材との界面付近において高屈折率エナメル層の下方半分に位置していることを特徴とする積層基材である。
Bi2O3: 55〜75wt%
BaO: 0〜20wt%
ZnO: 0〜20wt%
Al2O3: 1〜7wt%
SiO2: 5〜15wt%
B2O3: 5〜20wt%
Na2O: 0.1〜1wt%
CeO2: 0〜0.1wt%
本発明の代表的な態様としては、以下を挙げることができる:
《態様1》
少なくとも下記の工程を含む、発光デバイスのための積層基材の作製方法:
(a)550nmでの屈折率が1.45と1.65の間であるガラス基材(1)を用意する工程、
(b)前記ガラス基材の1つの面を金属酸化物層(2)で被覆する工程、
(c)前記金属酸化物層(2)を、550nmでの屈折率が少なくとも1.7でありBi 2 O 3 を少なくとも30重量%含むガラスフリット(3)で被覆する工程、
(d)得られた被覆したガラス基材を530℃と620℃の間に含まれる温度で焼成して、金属酸化物を、溶融しているガラスフリットと反応させ、そしてガラス基材との界面付近のエナメル層の下方部分に埋め込まれた複数の球状空隙(5)を含む高屈折率エナメル層(4)を形成する工程。
《態様2》
前記金属酸化物層の厚さが5nmと80nmの間であり、好ましくは10nmと40nmの間、より好ましくは15nmと30nmの間である、態様1記載の方法。
《態様3》
前記金属酸化物を、TiO 2 、Al 2 O 3 、ZrO 2 、Nb 2 O 5 、HfO 2 、Ta 2 O 5 、WO 3 、Ga 2 O 3 、In 2 O 3 及びSnO 2 、並びにそれらの混合物からなる群より選ぶ、態様1又は2記載の方法。
《態様4》
前記ガラスフリットの屈折率が1.70と2.20の間、好ましくは1.80と2.10の間に含まれる、態様1〜3のいずれか1つに記載の方法。
《態様5》
前記ガラスフリットが少なくとも50重量%、好ましくは少なくとも60重量%のBi 2 O 3 を含む、態様1〜4のいずれか1つに記載の方法。
《態様6》
前記高屈折率ガラスフリットの溶融を540℃と600℃の間に含まれる温度で行う、態様1〜5のいずれか1つに記載の方法。
《態様7》
(e)前記高屈折率エナメル層(4)を透明導電性層(TCL)で被覆すること,
をさらに含む、態様1〜6のいずれか1つに記載の方法。
《態様8》
態様1〜7のいずれか1つに記載の方法により得ることができる積層基材であり、
(i)屈折率が1.45と1.65の間であるガラス基材(1)、
(ii)少なくとも30重量%のBi 2 O 3 を含み、550nmでの屈折率が少なくとも1.7である、高屈折率ガラスエナメル層(4)、
を含む積層基材であって、
高屈折率エナメル層と下にあるガラス基材との界面付近において該エナメル層中に複数の球状空隙(5)が埋め込まれており、球状空隙の少なくとも95%、好ましくは少なくとも99%、より好ましくは本質的にすべてが、該エナメル層の厚さの半分よりも有意に小さい直径を有し、且つ下にあるガラス基材(1)との界面(7)の付近において該高屈折率エナメル層の下方半分に位置していることを特徴とする積層基材。
《態様9》
前記球状空隙の平均相当球径が0.2μmと8μmの間であり、好ましくは0.4μmと4μmの間、より好ましくは0.5μmと3μmの間である、態様8記載の積層基材。
《態様10》
前記高屈折率エナメル層の厚さが3μmと25μmの間に含まれ、好ましくは4μmと20μmの間、より好ましくは5μmと15μmの間に含まれる、態様8又は9記載の積層基材。
《態様11》
前記球状空隙が下にあるガラス基材と接触している、態様8〜10のいずれか1つに記載の積層基材。
《態様12》
前記球状空隙が下にあるガラス基材(1)と接触している個別の空隙の単層を形成している、態様8〜11のいずれか1つに記載の積層基材。
《態様13》
(iii)前記高屈折率エナメル層(4)上の透明導電性層(6)、をさらに含む、態様8〜12のいずれか1つに記載の積層基材。
Claims (13)
- 少なくとも下記の工程を含む、発光デバイスのための積層基材の作製方法:
(a)550nmでの屈折率が1.45と1.65の間であるガラス基材(1)を用意する工程、
(b)前記ガラス基材の1つの面を金属酸化物層(2)で被覆する工程、
(c)前記金属酸化物層(2)を、550nmでの屈折率が少なくとも1.7でありBi2O3を少なくとも30重量%含むガラスフリット(3)で被覆する工程、
(d)得られた被覆したガラス基材を530℃と620℃の間に含まれる温度で焼成して、金属酸化物を、溶融しているガラスフリットと反応させ、そしてガラス基材との界面付近のエナメル層の下方部分に埋め込まれた複数の球状空隙(5)を含む高屈折率エナメル層(4)を形成する工程。 - 前記金属酸化物層の厚さが5nmと80nmの間である、請求項1記載の方法。
- 前記金属酸化物を、TiO2、Al2O3、ZrO2、Nb2O5、HfO2、Ta2O5、WO3、Ga2O3、In2O3及びSnO2、並びにそれらの混合物からなる群より選ぶ、請求項1又は2記載の方法。
- 前記ガラスフリットの屈折率が1.70と2.20の間に含まれる、請求項1〜3のいずれか1項記載の方法。
- 前記ガラスフリットが少なくとも50重量%のBi2O3を含む、請求項1〜4のいずれか1項記載の方法。
- 前記高屈折率ガラスフリットの溶融を540℃と600℃の間に含まれる温度で行う、請求項1〜5のいずれか1項記載の方法。
- (e)前記高屈折率エナメル層(4)を透明導電性層(TCL)で被覆すること,
をさらに含む、請求項1〜6のいずれか1項記載の方法。 - 次のものを含む積層基材、すなわち、
(i)屈折率が1.45と1.65の間であるガラス基材(1)、
(ii)少なくとも30重量%のBi2O3を含み、550nmでの屈折率が少なくとも1.7である、高屈折率ガラスエナメル層(4)、
を含む積層基材であって、
高屈折率エナメル層と下にあるガラス基材との界面付近において該エナメル層中に複数の球状空隙(5)が埋め込まれており、球状空隙の少なくとも95%が、該エナメル層の厚さの半分よりも有意に小さい直径を有し、且つ下にあるガラス基材(1)との界面(7)の付近において該高屈折率エナメル層の下方半分に位置していることを特徴とする積層基材。 - 前記球状空隙の平均相当球径が0.2μmと8μmの間である、請求項8記載の積層基材。
- 前記高屈折率エナメル層の厚さが3μmと25μmの間に含まれる、請求項8又は9記載の積層基材。
- 前記球状空隙が下にあるガラス基材と接触している、請求項8〜10のいずれか1項記載の積層基材。
- 前記球状空隙が下にあるガラス基材(1)と接触している個別の空隙の単層を形成している、請求項8〜11のいずれか1項記載の積層基材。
- (iii)前記高屈折率エナメル層(4)上の透明導電性層(6)、をさらに含む、請求項8〜12のいずれか1項記載の積層基材。
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EP14177291.3A EP2975008B1 (en) | 2014-07-16 | 2014-07-16 | Transparent diffusive oled substrate and method for producing such a substrate |
PCT/EP2015/064157 WO2016008685A1 (en) | 2014-07-16 | 2015-06-23 | Transparent diffusive oled substrate and method for producing such a substrate |
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US10700242B2 (en) * | 2016-12-27 | 2020-06-30 | Nichia Corporation | Method of producing wavelength conversion member |
US10650935B2 (en) * | 2017-08-04 | 2020-05-12 | Vitro Flat Glass Llc | Transparent conductive oxide having an embedded film |
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US20070013305A1 (en) * | 2005-07-18 | 2007-01-18 | Wang Carl B | Thick film getter paste compositions with pre-hydrated desiccant for use in atmosphere control |
US20080090034A1 (en) * | 2006-09-18 | 2008-04-17 | Harrison Daniel J | Colored glass frit |
CN101766052B (zh) * | 2007-07-27 | 2012-07-18 | 旭硝子株式会社 | 透光性基板、其制造方法、有机led元件及其制造方法 |
KR20100138939A (ko) * | 2008-03-18 | 2010-12-31 | 아사히 가라스 가부시키가이샤 | 전자 디바이스용 기판, 유기 led 소자용 적층체 및 그의 제조 방법, 유기 led 소자 및 그의 제조 방법 |
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FR2955575B1 (fr) * | 2010-01-22 | 2012-02-24 | Saint Gobain | Substrat verrier revetu d'une couche haut indice sous un revetement electrode et dispositif electroluminescent organique comportant un tel substrat. |
BR112013001133A2 (pt) * | 2010-07-16 | 2016-05-17 | Agc Glass Europe | substrato condutivo translúcido para dispositivos de emissão de luz orgânica. |
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