JP2009238910A - 有機発光素子 - Google Patents
有機発光素子 Download PDFInfo
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- JP2009238910A JP2009238910A JP2008081132A JP2008081132A JP2009238910A JP 2009238910 A JP2009238910 A JP 2009238910A JP 2008081132 A JP2008081132 A JP 2008081132A JP 2008081132 A JP2008081132 A JP 2008081132A JP 2009238910 A JP2009238910 A JP 2009238910A
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- 150000002894 organic compounds Chemical class 0.000 claims abstract description 86
- 238000002347 injection Methods 0.000 claims abstract description 46
- 239000007924 injection Substances 0.000 claims abstract description 46
- 150000001491 aromatic compounds Chemical class 0.000 claims abstract description 15
- 229910052783 alkali metal Inorganic materials 0.000 claims abstract description 5
- 150000001340 alkali metals Chemical class 0.000 claims abstract description 5
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims abstract description 5
- 150000001339 alkali metal compounds Chemical class 0.000 claims abstract description 4
- 150000001341 alkaline earth metal compounds Chemical class 0.000 claims abstract description 4
- 150000001342 alkaline earth metals Chemical class 0.000 claims abstract description 4
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims abstract description 4
- 125000004122 cyclic group Chemical group 0.000 claims description 3
- 230000008859 change Effects 0.000 abstract description 16
- 239000002019 doping agent Substances 0.000 abstract description 16
- 239000000243 solution Substances 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 168
- 239000000463 material Substances 0.000 description 31
- 150000003839 salts Chemical class 0.000 description 21
- 239000000470 constituent Substances 0.000 description 19
- 150000001875 compounds Chemical class 0.000 description 17
- 239000000758 substrate Substances 0.000 description 17
- 238000001004 secondary ion mass spectrometry Methods 0.000 description 14
- 238000009792 diffusion process Methods 0.000 description 13
- 239000011521 glass Substances 0.000 description 13
- 230000005525 hole transport Effects 0.000 description 12
- 238000000034 method Methods 0.000 description 12
- -1 cyclic imine Chemical group 0.000 description 11
- 238000001771 vacuum deposition Methods 0.000 description 11
- 238000005259 measurement Methods 0.000 description 10
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 9
- 229910052792 caesium Inorganic materials 0.000 description 6
- 238000004544 sputter deposition Methods 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 230000032258 transport Effects 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 4
- TVFDJXOCXUVLDH-UHFFFAOYSA-N caesium atom Chemical compound [Cs] TVFDJXOCXUVLDH-UHFFFAOYSA-N 0.000 description 4
- FJDQFPXHSGXQBY-UHFFFAOYSA-L caesium carbonate Chemical compound [Cs+].[Cs+].[O-]C([O-])=O FJDQFPXHSGXQBY-UHFFFAOYSA-L 0.000 description 4
- 229910000024 caesium carbonate Inorganic materials 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 239000002274 desiccant Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000012299 nitrogen atmosphere Substances 0.000 description 4
- 150000002500 ions Chemical class 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- NAWXUBYGYWOOIX-SFHVURJKSA-N (2s)-2-[[4-[2-(2,4-diaminoquinazolin-6-yl)ethyl]benzoyl]amino]-4-methylidenepentanedioic acid Chemical compound C1=CC2=NC(N)=NC(N)=C2C=C1CCC1=CC=C(C(=O)N[C@@H](CC(=C)C(O)=O)C(O)=O)C=C1 NAWXUBYGYWOOIX-SFHVURJKSA-N 0.000 description 2
- FLBAYUMRQUHISI-UHFFFAOYSA-N 1,8-naphthyridine Chemical group N1=CC=CC2=CC=CN=C21 FLBAYUMRQUHISI-UHFFFAOYSA-N 0.000 description 2
- STGMORHGPQLXMT-UHFFFAOYSA-N 9h-indeno[2,1-c]pyridazine Chemical group C1=NN=C2CC3=CC=CC=C3C2=C1 STGMORHGPQLXMT-UHFFFAOYSA-N 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- DGEZNRSVGBDHLK-UHFFFAOYSA-N [1,10]phenanthroline Chemical group C1=CN=C2C3=NC=CC=C3C=CC2=C1 DGEZNRSVGBDHLK-UHFFFAOYSA-N 0.000 description 2
- 239000013522 chelant Substances 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 238000004770 highest occupied molecular orbital Methods 0.000 description 2
- 238000004768 lowest unoccupied molecular orbital Methods 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910018068 Li 2 O Inorganic materials 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- XHCLAFWTIXFWPH-UHFFFAOYSA-N [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] XHCLAFWTIXFWPH-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 229910000288 alkali metal carbonate Inorganic materials 0.000 description 1
- 150000008041 alkali metal carbonates Chemical class 0.000 description 1
- 229910001508 alkali metal halide Inorganic materials 0.000 description 1
- 150000008045 alkali metal halides Chemical class 0.000 description 1
- 229910001615 alkaline earth metal halide Inorganic materials 0.000 description 1
- 229910000287 alkaline earth metal oxide Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010549 co-Evaporation Methods 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 229920001940 conductive polymer Polymers 0.000 description 1
- SWXVUIWOUIDPGS-UHFFFAOYSA-N diacetone alcohol Natural products CC(=O)CC(C)(C)O SWXVUIWOUIDPGS-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005401 electroluminescence Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- RBTKNAXYKSUFRK-UHFFFAOYSA-N heliogen blue Chemical compound [Cu].[N-]1C2=C(C=CC=C3)C3=C1N=C([N-]1)C3=CC=CC=C3C1=NC([N-]1)=C(C=CC=C3)C3=C1N=C([N-]1)C3=CC=CC=C3C1=N2 RBTKNAXYKSUFRK-UHFFFAOYSA-N 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- DCZNSJVFOQPSRV-UHFFFAOYSA-N n,n-diphenyl-4-[4-(n-phenylanilino)phenyl]aniline Chemical class C1=CC=CC=C1N(C=1C=CC(=CC=1)C=1C=CC(=CC=1)N(C=1C=CC=CC=1)C=1C=CC=CC=1)C1=CC=CC=C1 DCZNSJVFOQPSRV-UHFFFAOYSA-N 0.000 description 1
- 150000004866 oxadiazoles Chemical class 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920003227 poly(N-vinyl carbazole) Polymers 0.000 description 1
- 125000003367 polycyclic group Chemical group 0.000 description 1
- 229920000123 polythiophene Polymers 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 229910052701 rubidium Inorganic materials 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- PJANXHGTPQOBST-UHFFFAOYSA-N stilbene Chemical class C=1C=CC=CC=1C=CC1=CC=CC=C1 PJANXHGTPQOBST-UHFFFAOYSA-N 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- 229910001935 vanadium oxide Inorganic materials 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/60—Organic compounds having low molecular weight
- H10K85/649—Aromatic compounds comprising a hetero atom
- H10K85/657—Polycyclic condensed heteroaromatic hydrocarbons
- H10K85/6572—Polycyclic condensed heteroaromatic hydrocarbons comprising only nitrogen in the heteroaromatic polycondensed ring system, e.g. phenanthroline or carbazole
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/06—Luminescent, e.g. electroluminescent, chemiluminescent materials containing organic luminescent materials
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2211/00—Chemical nature of organic luminescent or tenebrescent compounds
- C09K2211/10—Non-macromolecular compounds
- C09K2211/1003—Carbocyclic compounds
- C09K2211/1011—Condensed systems
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2211/00—Chemical nature of organic luminescent or tenebrescent compounds
- C09K2211/10—Non-macromolecular compounds
- C09K2211/1003—Carbocyclic compounds
- C09K2211/1014—Carbocyclic compounds bridged by heteroatoms, e.g. N, P, Si or B
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2211/00—Chemical nature of organic luminescent or tenebrescent compounds
- C09K2211/10—Non-macromolecular compounds
- C09K2211/1018—Heterocyclic compounds
- C09K2211/1025—Heterocyclic compounds characterised by ligands
- C09K2211/1044—Heterocyclic compounds characterised by ligands containing two nitrogen atoms as heteroatoms
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- 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
- H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
- H10K50/14—Carrier transporting layers
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- 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
- H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
- H10K50/14—Carrier transporting layers
- H10K50/16—Electron transporting layers
- H10K50/165—Electron transporting layers comprising dopants
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/60—Organic compounds having low molecular weight
- H10K85/615—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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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- 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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- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
【解決手段】陽極と陰極と、陽極と陰極の間に挟持され少なくとも発光層と、第一の有機化合物層と、第二の有機化合物層と、電子注入層と、をこの順に含む積層体と、から構成され、第一の有機化合物層に下記一般式[1]で示される部分構造を含まない芳香族化合物が含まれており、第二の有機化合物層に下記一般式[1]で示される部分構造を含む芳香族化合物が含まれており、電子注入層にアルカリ金属、アルカリ土類金属、アルカリ金属化合物又はアルカリ土類金属化合物が含まれていることを特徴とする有機発光素子。
(式[1]において、Arはベンゼン環を含む環状構造を表す。)
【選択図】なし
Description
(a)Li,Na,K,Rb,Cs等のアルカリ金属
(b)Mg,Ca,Sr,Ba等のアルカリ土類金属
(c)LiF等のアルカリ金属ハロゲン化物、Li2O等のアルカリ金属酸化物、Cs2CO3等のアルカリ金属炭酸化物等のアルカリ金属化合物
(d)MgF2等のアルカリ土類金属ハロゲン化物、MgO等のアルカリ土類金属酸化物、アルカリ土類金属炭酸化物等のアルカリ土類金属化合物
図2に示す有機発光素子を以下に示す方法で作製した。
ガラス基板上に、式[6]の化合物を真空蒸着法にて成膜し第一の有機化合物層を形成した。このとき第一の有機化合物層の膜厚を50nmとした。次に、第一の有機化合物層上に、真空蒸着法にて式[7]のフェナントロリン化合物と炭酸セシウムとを、層中のセシウム濃度が8.3重量%となるように共蒸着して、電子注入層を形成した。このとき電子注入層の膜厚を20nmとした。最後に、電子注入層上に、スパッタリング法にてIZOを成膜して透明電極(陰極)を形成した。このとき透明電極の膜厚を60nmとした。次に、陰極まで形成したガラス基板を、窒素雰囲気下のグローブボックス中において、乾燥剤を入れたガラスキャップにより封止した。以上によりサンプル1を得た。
ガラス基板上に、真空蒸着法にて式[7]のフェナントロリン化合物と炭酸セシウムとを、層中のセシウム濃度が8.3重量%となるように共蒸着して、電子注入層を形成した。このとき電子注入層の膜厚を20nmとした。最後に、電子注入層上に、スパッタリング法にてIZOを成膜して透明電極(陰極)を形成した。このとき透明電極の膜厚を60nmとした。次に、陰極まで形成したガラス基板を、窒素雰囲気下のグローブボックス中において、乾燥剤を入れたガラスキャップにより封止した。以上によりサンプル2を得た。
実施例1において、第二の有機化合物層を形成する工程を省略し図4に示す有機発光素子を作製した以外は、実施例1と同様の方法で有機発光素子を作製した。
実施例1において、式[6]の化合物に代えて、下記式[8]に示される化合物を使用して第一の有機化合物層を形成したことを除いては、実施例1と同様の方法で発光素子を作製した。
実施例2において、第二の有機化合物層を形成する工程を省略し図4に示す有機発光素子を作製した以外は、実施例2と同様の方法で有機発光素子を作製した。
図2に示す有機発光素子を以下に示す方法で作製した。尚、素子を作製するにあたり、発光層5までの各層を実施例1と同様の方法で作製した。
実施例3において、第二の有機化合物層を形成する工程を省略し図4に示す有機発光素子を作製した以外は、実施例3と同様の方法で有機発光素子を作製した。
2 陽極
3 正孔輸送層
4 電子ブロック層
5 発光層
6 第一の有機化合物層
7 第二の有機化合物層
8 電子注入層
9 陰極
11,12 有機発光素子
21 第一の電極層
22 第二の電極層
91 透明電極
Claims (1)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008081132A JP2009238910A (ja) | 2008-03-26 | 2008-03-26 | 有機発光素子 |
CN2009801102029A CN101978526A (zh) | 2008-03-26 | 2009-03-25 | 有机发光器件 |
PCT/JP2009/056768 WO2009119884A1 (en) | 2008-03-26 | 2009-03-25 | Organic light emitting device |
US12/531,629 US20110012504A1 (en) | 2008-03-26 | 2009-03-25 | Organic light emitting device |
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JP2008081132A JP2009238910A (ja) | 2008-03-26 | 2008-03-26 | 有機発光素子 |
Publications (2)
Publication Number | Publication Date |
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JP2009238910A true JP2009238910A (ja) | 2009-10-15 |
JP2009238910A5 JP2009238910A5 (ja) | 2012-11-08 |
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JP2008081132A Pending JP2009238910A (ja) | 2008-03-26 | 2008-03-26 | 有機発光素子 |
Country Status (4)
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US (1) | US20110012504A1 (ja) |
JP (1) | JP2009238910A (ja) |
CN (1) | CN101978526A (ja) |
WO (1) | WO2009119884A1 (ja) |
Families Citing this family (2)
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EP3192789A1 (en) | 2010-01-15 | 2017-07-19 | Idemitsu Kosan Co., Ltd. | Nitrogenated heterocyclic ring derivative and organic electroluminescent element comprising same |
JP6210745B2 (ja) | 2013-06-11 | 2017-10-11 | キヤノン株式会社 | 有機発光素子 |
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Family Cites Families (10)
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JPH10270171A (ja) * | 1997-01-27 | 1998-10-09 | Junji Kido | 有機エレクトロルミネッセント素子 |
TWI225312B (en) * | 2001-02-08 | 2004-12-11 | Semiconductor Energy Lab | Light emitting device |
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2008
- 2008-03-26 JP JP2008081132A patent/JP2009238910A/ja active Pending
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2009
- 2009-03-25 CN CN2009801102029A patent/CN101978526A/zh active Pending
- 2009-03-25 US US12/531,629 patent/US20110012504A1/en not_active Abandoned
- 2009-03-25 WO PCT/JP2009/056768 patent/WO2009119884A1/en active Application Filing
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JP2003045663A (ja) * | 2001-08-02 | 2003-02-14 | Univ Osaka | エレクトロルミネッセンス素子用材料、アモルファス膜、及びエレクトロルミネッセンス素子 |
US20050123793A1 (en) * | 2003-12-05 | 2005-06-09 | Thompson Mark E. | OLEDs having n-type doping |
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JP2006173619A (ja) * | 2004-12-16 | 2006-06-29 | Au Optronics Corp | 有機発光ダイオード及びその製造方法 |
JP2007019462A (ja) * | 2005-03-16 | 2007-01-25 | Fujifilm Corp | 有機電界発光素子 |
JP2007027587A (ja) * | 2005-07-20 | 2007-02-01 | Chisso Corp | 有機電界発光素子 |
JP2007194505A (ja) * | 2006-01-20 | 2007-08-02 | Fujifilm Corp | 有機電界発光素子 |
JP2007287660A (ja) * | 2006-03-22 | 2007-11-01 | Canon Inc | 有機発光装置 |
JP2007273231A (ja) * | 2006-03-31 | 2007-10-18 | Canon Inc | 多色有機elディスプレイ |
JP2008034701A (ja) * | 2006-07-31 | 2008-02-14 | Canon Inc | 有機発光素子 |
Also Published As
Publication number | Publication date |
---|---|
CN101978526A (zh) | 2011-02-16 |
US20110012504A1 (en) | 2011-01-20 |
WO2009119884A1 (en) | 2009-10-01 |
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