JP6495893B2 - 透明な拡散性oled基材及び当該基材の製造方法 - Google Patents
透明な拡散性oled基材及び当該基材の製造方法 Download PDFInfo
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- 239000000758 substrate Substances 0.000 title claims description 64
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- 239000011521 glass Substances 0.000 claims description 73
- 239000010954 inorganic particle Substances 0.000 claims description 70
- 210000003298 dental enamel Anatomy 0.000 claims description 43
- 238000000034 method Methods 0.000 claims description 28
- 239000002245 particle Substances 0.000 claims description 22
- 239000000463 material Substances 0.000 claims description 17
- 238000002844 melting Methods 0.000 claims description 13
- 230000008018 melting Effects 0.000 claims description 13
- 230000003746 surface roughness Effects 0.000 claims description 12
- 239000007787 solid Substances 0.000 claims description 8
- 239000011324 bead Substances 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 3
- 230000009477 glass transition Effects 0.000 claims description 3
- 239000010410 layer Substances 0.000 description 69
- 239000011230 binding agent Substances 0.000 description 12
- 239000011248 coating agent Substances 0.000 description 10
- 238000000576 coating method Methods 0.000 description 10
- 239000002585 base Substances 0.000 description 7
- 238000000605 extraction Methods 0.000 description 6
- 238000007650 screen-printing Methods 0.000 description 6
- 239000000203 mixture Substances 0.000 description 5
- 238000001878 scanning electron micrograph Methods 0.000 description 5
- 239000001856 Ethyl cellulose Substances 0.000 description 4
- 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 4
- 229910004298 SiO 2 Inorganic materials 0.000 description 4
- 235000019325 ethyl cellulose Nutrition 0.000 description 4
- 229920001249 ethyl cellulose Polymers 0.000 description 4
- 239000012044 organic layer Substances 0.000 description 4
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 3
- 238000000149 argon plasma sintering Methods 0.000 description 3
- 238000005530 etching Methods 0.000 description 3
- 238000010304 firing Methods 0.000 description 3
- 239000003960 organic solvent Substances 0.000 description 3
- 229910018068 Li 2 O Inorganic materials 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000001354 calcination Methods 0.000 description 2
- 238000003486 chemical etching Methods 0.000 description 2
- 239000005357 flat glass Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 238000007788 roughening Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000012798 spherical particle Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 229910015902 Bi 2 O 3 Inorganic materials 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 229910000272 alkali metal oxide Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910021488 crystalline silicon dioxide Inorganic materials 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 210000003918 fraction a Anatomy 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 238000001755 magnetron sputter deposition Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 238000000386 microscopy Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000004626 scanning electron microscopy Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000005361 soda-lime glass Substances 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 125000004665 trialkylsilyl group Chemical group 0.000 description 1
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Description
(a)屈折率が1.45と1.65の間の無機ガラス製の透明な平坦基材、
(b)無機粒子を含む粗い低屈折率層であって、当該無機粒子は低屈折率のエナメルで基材の片面に結合されていて、エナメルの表面近くの、又は表面の、又は表面から突出した無機粒子が0.15μmと3μmの間に含まれる算術平均偏差Raで特徴付けられる表面粗さを作り出していて、当該無機粒子と低屈折率エナメルの両方が1.45と1.65の間の屈折率を有している、粗い低屈折率層、
(c)前記粗い低屈折率層(b)を覆っている、屈折率が1.8と2.1の間に含まれるエナメル製の高屈折率の平坦化層、
を含む透明な拡散性OLED基材である。
(1)屈折率が1.45と1.65の間の無機ガラス製の透明な平坦基材を用意する工程、
(2)無機粒子を混合した低屈折率ガラスフリットであって、当該無機粒子は当該ガラスフリットのガラス転移温度(Tg)よりも少なくとも50℃高いTg又は融解温度を有しており、当該ガラスフリットと当該無機粒子の両者とも1.45と1.65の間の屈折率を有しているものを、前記基材の片面に適用する工程、
(3)得られたガラスフリット層を、無機粒子を溶融させずにガラスフリットを溶融させる温度に加熱して、低屈折率エナメルにより基材に結合させた無機粒子を含む粗い低屈折率層を得る工程、
(4)この粗い低屈折率層に屈折率が1.8と2.1の間の高屈折率ガラスフリットの層を適用する工程、
(5)前記透明な粗い低屈折率層を覆う屈折率が1.8と2.1の間に含まれる高屈折率エナメルが得られるように、前記高屈折率ガラスフリットを乾燥及び溶融させる工程、
を含む。
SiO2: 10〜40wt%
Al2O3: 1〜7wt%
B2O3: 20〜50wt%
Na2O+Li2O+K2O: 5〜30wt%
ZnO: 3〜35wt%
の組成を有する。
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%
の組成を有する。
低屈折率のフリット(20重量部)を平均相当径が6μmの球状SiO2粒子(10重量部)と混合する。得られた粉体を70重量部の有機媒体中に三本ロール混練法を使って分散させる。それは1.54の屈折率と484℃のTgを有する。
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》
次の連続した構成要素又は層、すなわち、
(a)屈折率が1.45と1.65の間の無機ガラス製の透明な平坦基材、
(b)無機粒子を含む粗い低屈折率層であって、当該無機粒子は低屈折率のエナメルで前記基材の片面に結合されていて、当該エナメルの表面近くの、又は表面の、又は表面から突出した無機粒子が0.15μmと3μmの間に含まれる算術平均偏差R a で特徴付けられる表面粗さを作り出していて、当該無機粒子とエナメルの両方が1.45と1.65の間の屈折率を有している、粗い低屈折率層、
(c)前記粗い低屈折率層(b)を覆っている、屈折率が1.8と2.1の間に含まれるエナメル製の高屈折率の平坦化層、
を含む透明な拡散性OLED基材。
《態様2》
前記無機粒子が0.3μmと10μmの間、好ましくは0.5μmと8μmの間、より好ましくは0.8μmと7μmの間の平均相当球径を有する、態様1記載の基材。
《態様3》
前記無機粒子が中実のビーズである、態様1又は2記載の基材。
《態様4》
前記無機粒子が、相当球径が15μmより大きい、好ましくは12μmより大きい、より好ましくは10μmより大きい粒子を本質的に含まない、態様1〜3のいずれかに記載の基材。
《態様5》
前記基材、低屈折率エナメル及び無機粒子の屈折率が1.50と1.60の間に含まれる、態様1〜4のいずれかに記載の基材。
《態様6》
前記高屈折率層の厚さが3μmと20μmの間、好ましくは4μmと15μmの間、より好ましくは5μmと12μmの間に含まれる、態様1〜5のいずれかに記載の基材。
《態様7》
前記高屈折率層の表面粗さが3nm未満、より好ましくは2nm未満、最も好ましくは1nm未満の算術平均偏差Raを有する、態様1〜6のいずれかに記載の基材。
《態様8》
前記高屈折率層が、それに分散した拡散性構成要素を本質的に含まず、特にそれに分散した拡散性の中実粒子を含まない、態様1〜7のいずれかに記載の基材。
《態様9》
前記無機粒子がシリカ粒子から選ばれている、態様1〜8のいずれかに記載の基材。
《態様10》
前記高屈折率のエナメル層の上に透明な導電性層を更に含む、態様1〜9のいずれかに記載の基材。
《態様11》
前記無機粒子の前記低屈折率エナメルに対する体積比が0.3と3の間、好ましくは0.5と2の間、より好ましくは0.7と1.5の間に含まれる、態様1〜10のいずれかに記載の基材。
《態様12》
次の一連の工程、すなわち、
(1)屈折率が1.45と1.65の間の無機ガラス製の透明な平坦基材を用意する工程、
(2)無機粒子を混合した低屈折率ガラスフリットであって、当該無機粒子は当該ガラスフリットのガラス転移温度(T g )よりも少なくとも50℃高いT g 又は融解温度を有しており、当該ガラスフリットと当該無機粒子の両者とも1.45と1.65の間の屈折率を有しているものを、前記基材の片面に適用する工程、
(3)得られたガラスフリット層を、前記無機粒子を溶融させずに当該ガラスフリットを溶融させる温度に加熱して、低屈折率エナメルにより前記基材に結合させた無機粒子を含む粗い低屈折率層を得る工程、0
(4)この粗い低屈折率層に屈折率が1.8と2.1の間の高屈折率ガラスフリットの層を適用する工程、
(5)前記透明な粗い低屈折率層を覆う屈折率が1.8と2.1の間に含まれる高屈折率エナメルが得られるように、前記高屈折率ガラスフリットを乾燥及び溶融させる工程、
を含む、態様1〜11のいずれかに記載の透明な拡散性基材の作製方法。
《態様13》
前記無機粒子が0.3μmと10μmの間、好ましくは0.5μmと8μmの間、より好ましくは0.8μmと7μmの間の平均相当球径を有する、態様12記載の方法。
《態様14》
前記無機粒子の前記ガラスフリットに対する重量比が0.2と4の間、好ましくは0.4と3の間に含まれる、態様12又は13記載の方法。
《態様15》
前記高屈折率ガラスフリットの溶融を510℃と580℃の間、好ましくは520℃と580℃の間に含まれる温度で行う、態様12〜14のいずれかに記載の方法。
Claims (16)
- 次の連続した構成要素又は層、すなわち、
(a)屈折率が1.45と1.65の間の無機ガラス製の透明な平坦基材、
(b)無機粒子を含む粗い低屈折率層であって、当該無機粒子は低屈折率のエナメルで前記基材の片面に結合されていて、当該エナメルの表面近くの、又は表面の、又は表面から突出した無機粒子が0.15μmと3μmの間に含まれる算術平均偏差Raで特徴付けられる表面粗さを作り出していて、当該無機粒子とエナメルの両方が1.45と1.65の間の屈折率を有している、粗い低屈折率層、
(c)前記粗い低屈折率層(b)を覆っている、屈折率が1.8と2.1の間に含まれるエナメル製の高屈折率の平坦化層、
を含む透明な拡散性OLED基材。 - 前記無機粒子が0.3μmと10μmの間の平均相当球径を有する、請求項1記載の基材。
- 前記無機粒子が中実のビーズである、請求項1又は2記載の基材。
- 前記無機粒子が、相当球径が15μmより大きい粒子を含まない、請求項1〜3のいずれかに記載の基材。
- 前記基材、低屈折率エナメル及び無機粒子の屈折率が1.50と1.60の間に含まれる、請求項1〜4のいずれかに記載の基材。
- 前記高屈折率層の厚さが3μmと20μmの間に含まれる、請求項1〜5のいずれかに記載の基材。
- 前記高屈折率層の表面粗さが3nm未満の算術平均偏差Raを有する、請求項1〜6のいずれかに記載の基材。
- 前記高屈折率層が、それに分散した拡散性構成要素を含まない、請求項1〜7のいずれかに記載の基材。
- 前記高屈折率層が、それに分散した拡散性の中実粒子を含まない、請求項1〜7のいずれかに記載の基材。
- 前記無機粒子がシリカ粒子から選ばれている、請求項1〜9のいずれかに記載の基材。
- 前記高屈折率のエナメル層の上に透明な導電性層を更に含む、請求項1〜10のいずれかに記載の基材。
- 前記無機粒子の前記低屈折率エナメルに対する体積比が0.3と3の間に含まれる、請求項1〜11のいずれかに記載の基材。
- 次の一連の工程、すなわち、
(1)屈折率が1.45と1.65の間の無機ガラス製の透明な平坦基材を用意する工程、
(2)無機粒子を混合した低屈折率ガラスフリットであって、当該無機粒子は当該ガラスフリットのガラス転移温度(Tg)よりも少なくとも50℃高いTg又は融解温度を有しており、当該ガラスフリットと当該無機粒子の両者とも1.45と1.65の間の屈折率を有しているものを、前記基材の片面に適用する工程、
(3)得られたガラスフリット層を、前記無機粒子を溶融させずに当該ガラスフリットを溶融させる温度に加熱して、低屈折率エナメルにより前記基材に結合させた無機粒子を含む粗い低屈折率層を得る工程、
(4)この粗い低屈折率層に屈折率が1.8と2.1の間の高屈折率ガラスフリットの層を適用する工程、
(5)前記透明な粗い低屈折率層を覆う屈折率が1.8と2.1の間に含まれる高屈折率エナメルが得られるように、前記高屈折率ガラスフリットを乾燥及び溶融させる工程、
を含む、請求項1〜12のいずれかに記載の透明な拡散性基材の作製方法。 - 前記無機粒子が0.3μmと10μmの間の平均相当球径を有する、請求項13記載の方法。
- 前記無機粒子の前記ガラスフリットに対する重量比が0.2と4の間に含まれる、請求項13又は14記載の方法。
- 前記高屈折率ガラスフリットの溶融を510℃と580℃の間に含まれる温度で行う、請求項13〜15のいずれかに記載の方法。
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EP13168335.1 | 2013-05-17 | ||
EP13168335.1A EP2803645B1 (en) | 2013-05-17 | 2013-05-17 | Transparent diffusive oled substrate and method for producing such a substrate |
PCT/EP2014/058737 WO2014183992A1 (en) | 2013-05-17 | 2014-04-29 | Transparent diffusive oled substrate and method for producing such a substrate |
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ES2564141T3 (es) | 2013-06-14 | 2016-03-18 | Saint-Gobain Glass France | Substrato de OLED difusor transparente y método para producir tal substrato |
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WO2002075373A1 (fr) * | 2001-03-21 | 2002-09-26 | Fuji Photo Film Co., Ltd. | Couche mince antireflet et dispositif d'affichage d'images |
FR2844364B1 (fr) * | 2002-09-11 | 2004-12-17 | Saint Gobain | Substrat diffusant |
JP5066814B2 (ja) * | 2005-03-11 | 2012-11-07 | 三菱化学株式会社 | エレクトロルミネッセンス素子及び照明装置 |
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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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US9224983B2 (en) * | 2010-12-20 | 2015-12-29 | Samsung Electronics Co., Ltd. | Substrate for surface light emitting device and method of manufacturing the substrate, surface light emitting device, lighting apparatus, and backlight including the same |
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US20160087228A1 (en) | 2016-03-24 |
CN105189384B (zh) | 2019-04-30 |
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