JP6132580B2 - 新規縮合多環化合物およびそれを有する有機発光素子 - Google Patents
新規縮合多環化合物およびそれを有する有機発光素子 Download PDFInfo
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- JP6132580B2 JP6132580B2 JP2013027778A JP2013027778A JP6132580B2 JP 6132580 B2 JP6132580 B2 JP 6132580B2 JP 2013027778 A JP2013027778 A JP 2013027778A JP 2013027778 A JP2013027778 A JP 2013027778A JP 6132580 B2 JP6132580 B2 JP 6132580B2
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- 125000001971 neopentyl group Chemical group [H]C([*])([H])C(C([H])([H])[H])(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 1
- 125000002868 norbornyl group Chemical group C12(CCC(CC1)C2)* 0.000 description 1
- 125000002524 organometallic group Chemical group 0.000 description 1
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- 125000001715 oxadiazolyl group Chemical group 0.000 description 1
- 150000007978 oxazole derivatives Chemical class 0.000 description 1
- 125000002971 oxazolyl group Chemical group 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 125000003933 pentacenyl group Chemical group C1(=CC=CC2=CC3=CC4=CC5=CC=CC=C5C=C4C=C3C=C12)* 0.000 description 1
- 125000005004 perfluoroethyl group Chemical group FC(F)(F)C(F)(F)* 0.000 description 1
- 125000005009 perfluoropropyl group Chemical group FC(C(C(F)(F)F)(F)F)(F)* 0.000 description 1
- 125000002080 perylenyl group Chemical group C1(=CC=C2C=CC=C3C4=CC=CC5=CC=CC(C1=C23)=C45)* 0.000 description 1
- 150000002987 phenanthrenes Chemical class 0.000 description 1
- 150000005041 phenanthrolines Chemical class 0.000 description 1
- 125000005561 phenanthryl group Chemical group 0.000 description 1
- 125000005562 phenanthrylene group Chemical group 0.000 description 1
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- 239000005011 phenolic resin Substances 0.000 description 1
- 125000000843 phenylene group Chemical group C1(=C(C=CC=C1)*)* 0.000 description 1
- 150000004986 phenylenediamines Chemical class 0.000 description 1
- 238000000103 photoluminescence spectrum Methods 0.000 description 1
- 125000004592 phthalazinyl group Chemical group C1(=NN=CC2=CC=CC=C12)* 0.000 description 1
- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical class N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 150000003057 platinum Chemical class 0.000 description 1
- 229920000553 poly(phenylenevinylene) Polymers 0.000 description 1
- 229920000767 polyaniline Polymers 0.000 description 1
- 229920005668 polycarbonate resin Polymers 0.000 description 1
- 239000004431 polycarbonate resin Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000009719 polyimide resin Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920000128 polypyrrole Polymers 0.000 description 1
- 150000004033 porphyrin derivatives Chemical class 0.000 description 1
- YLLIGHVCTUPGEH-UHFFFAOYSA-M potassium;ethanol;hydroxide Chemical compound [OH-].[K+].CCO YLLIGHVCTUPGEH-UHFFFAOYSA-M 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 150000003216 pyrazines Chemical class 0.000 description 1
- 125000005412 pyrazyl group Chemical group 0.000 description 1
- 125000001725 pyrenyl group Chemical group 0.000 description 1
- 125000002098 pyridazinyl group Chemical group 0.000 description 1
- 125000000714 pyrimidinyl group Chemical group 0.000 description 1
- 238000003077 quantum chemistry computational method Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 125000002294 quinazolinyl group Chemical group N1=C(N=CC2=CC=CC=C12)* 0.000 description 1
- MCJGNVYPOGVAJF-UHFFFAOYSA-N quinolin-8-ol Chemical compound C1=CN=C2C(O)=CC=CC2=C1 MCJGNVYPOGVAJF-UHFFFAOYSA-N 0.000 description 1
- 150000003248 quinolines Chemical class 0.000 description 1
- 125000005493 quinolyl group Chemical group 0.000 description 1
- 238000007348 radical reaction Methods 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
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- 238000010898 silica gel chromatography Methods 0.000 description 1
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- 238000009751 slip forming Methods 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 230000000087 stabilizing effect 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
- 230000001629 suppression Effects 0.000 description 1
- 229940042055 systemic antimycotics triazole derivative Drugs 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 125000001935 tetracenyl group Chemical group C1(=CC=CC2=CC3=CC4=CC=CC=C4C=C3C=C12)* 0.000 description 1
- 125000001544 thienyl group Chemical group 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 150000003918 triazines Chemical class 0.000 description 1
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 description 1
- YVTHLONGBIQYBO-UHFFFAOYSA-N zinc indium(3+) oxygen(2-) Chemical compound [O--].[Zn++].[In+3] YVTHLONGBIQYBO-UHFFFAOYSA-N 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Classifications
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- C07C13/28—Polycyclic hydrocarbons or acyclic hydrocarbon derivatives thereof
- C07C13/32—Polycyclic hydrocarbons or acyclic hydrocarbon derivatives thereof with condensed rings
- C07C13/62—Polycyclic hydrocarbons or acyclic hydrocarbon derivatives thereof with condensed rings with more than three condensed rings
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- C07C22/02—Cyclic compounds containing halogen atoms bound to an acyclic carbon atom having unsaturation in the rings
- C07C22/04—Cyclic compounds containing halogen atoms bound to an acyclic carbon atom having unsaturation in the rings containing six-membered aromatic rings
- C07C22/08—Cyclic compounds containing halogen atoms bound to an acyclic carbon atom having unsaturation in the rings containing six-membered aromatic rings containing fluorine
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- C07C25/18—Polycyclic aromatic halogenated hydrocarbons
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- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C255/00—Carboxylic acid nitriles
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- C07C255/50—Carboxylic acid nitriles having cyano groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton to carbon atoms of non-condensed six-membered aromatic rings
- C07C255/51—Carboxylic acid nitriles having cyano groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton to carbon atoms of non-condensed six-membered aromatic rings containing at least two cyano groups bound to the carbon skeleton
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- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/06—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom containing only hydrogen and carbon atoms in addition to the ring nitrogen atom
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- C07D215/04—Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen atoms or carbon atoms directly attached to the ring nitrogen atom with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, directly attached to the ring carbon atoms
- C07D215/06—Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen atoms or carbon atoms directly attached to the ring nitrogen atom with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, directly attached to the ring carbon atoms having only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, attached to the ring nitrogen atom
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- C07D235/02—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, condensed with other rings condensed with carbocyclic rings or ring systems
- C07D235/04—Benzimidazoles; Hydrogenated benzimidazoles
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- C07D235/04—Benzimidazoles; Hydrogenated benzimidazoles
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- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
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- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
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- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
- G09G3/3225—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
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- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
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- C07C2603/04—Ortho- or ortho- and peri-condensed systems containing three rings
- C07C2603/06—Ortho- or ortho- and peri-condensed systems containing three rings containing at least one ring with less than six ring members
- C07C2603/10—Ortho- or ortho- and peri-condensed systems containing three rings containing at least one ring with less than six ring members containing five-membered rings
- C07C2603/12—Ortho- or ortho- and peri-condensed systems containing three rings containing at least one ring with less than six ring members containing five-membered rings only one five-membered ring
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- H10K50/12—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers comprising dopants
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- 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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- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electroluminescent Light Sources (AREA)
- Quinoline Compounds (AREA)
- Pyridine Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
構造式1
構造式2
前記アルキル基、前記アリール基、前記複素環基が置換基を有する場合、前記置換基は、アルキル基、アラルキル基、アリール基、複素環基、アミノ基、アルコキシ基、ハロゲン原子のいずれかである。
本発明に係るナフト[2,3−e:6,7−e‘]ジアセフェナンスリレン化合物およびナフト[2,3−e:7,6−e’]ジアセフェナンスリレン化合物は、下記一般式[1]または[2]に示される化合物である。
(A)振動子強度が高いこと
(B)発光に関わる骨格の振動部分が少ないこと
以下にこの二点に関して詳細に説明する。
分子の発光に関わる骨格の対称性を高くすることが重要である。ただし、高対称性分子特有の禁制遷移条件によっては、発光しなくなる場合もある。
発光に関わる骨格に回転構造を有さないことで、回転振動による量子収率の低下を抑制することができる。本発明に係る一般式[1]または[2]で示されるナフト[2,3−e:6,7−e‘]ジアセフェナンスリレンおよびナフト[2,3−e:7,6−e’]ジアセフェナンスリレン骨格は、回転軸を持たないため、振動失活による量子収率の低下が少ないので、発光材料として好ましい骨格である。
次に、本実施形態に係る有機発光素子について説明する。
(i)(陽極/)発光層(/陰極)
(ii)(陽極/)ホール輸送層/発光層/電子輸送層(/陰極)
(iii)(陽極/)ホール輸送層/発光層/ホール・エキシトンブロック層/電子輸送層(/陰極)
(iv)(陽極/)ホール注入層/ホール輸送層/発光層/電子輸送層(/陰極)
(v)(陽極/)ホール輸送層/発光層/ホール・エキシトンブロック層/電子輸送層/電子注入層(/陰極)
(vi)(陽極/)ホール注入層/ホール輸送層/発光層/ホール・エキシトンブロック層/電子輸送層(/陰極)
(vii)(陽極/)ホール注入層/ホール輸送層/発光層/電子輸送層/電子注入層(/陰極)
本実施形態に係る有機発光素子は、表示装置や照明装置の構成部材として用いることができる。他にも電子写真方式の画像形成装置の露光光源や液晶表示装置のバックライト、照明等の用途がある。有機発光素子はさらにカラーフィルターを有していてよい。
以下に説明する方法に従い、例示化合物D27、D28を合成した。合成には合成ルート3を用いた。
1H−NMR(CDCl3):δ(ppm)=8.67(d,2H,J=8.0),8.61(d,2H,J=7.6),8.51(d,2H,J=8.4),8.45(d,2H,J=8.4),8.20−8.04(m,14H),7.99−7.959(m,4H),7.91−7.84(m,8H),7.79(t,2H,J=7.6),7.73−7.64(m,8H),7.60−7.52(m,4H),6.82(s,2H),6.63(d,2H,J=7.6)
以下に説明する方法に従い、例示化合物D29、D30を合成した。合成には合成ルート3を用いた。
1H−NMR(CDCl3):δ(ppm)=8.67(d,2H,J=8.4),8.61(d,2H,J=8.0),8.5(dd,2H,J=8.0),8.45(d,2H,J=8.0),8.22−8.21(m,2H),8.17−7.91(m,24H),7.79(t,2H,J=7.2),7.73−7.64(m,8H),7.59−7.51(m,4H),6.76(s,2H),6.57(d,2H,J=7.2)
比較例として下記構造式で示される比較化合物A1を合成し、フォトルミネッセンス、吸収スペクトルの測定を基に量子収率の比較を行った。吸収スペクトルは、日本分光製UV−570を用いた。量子収率は比較化合物A1を1.00として、相対的な強度を算出した。
本実施例では、基板上に順次、陽極、ホール注入層、ホール輸送層、発光層、ホール・エキシトンブロッキング層、電子輸送層、陰極を以下に示す方法を用いて、有機発光素子を作製した。
ホール注入層(65nm)G1
ホール輸送層(45nm)G2
発光層(25nm) ホスト:G3、ゲスト:表4に示した例示化合物(重量比 1%)
ホール・エキシトンブロッキング層(5nm)G4
電子輸送層(20nm) G5
金属電極層1(0.5nm) LiF
金属電極層2(100nm) Al
11 陽極
12 有機化合物層
13 陰極
Claims (19)
- 下記一般式[1]または[2]で示されることを特徴とする縮合多環化合物。
一般式[1]および[2]において、R1乃至R20は水素原子、シアノ基、置換あるいは無置換のアルキル基、置換あるいは無置換のアリール基、置換あるいは無置換の複素環基からそれぞれ独立に選ばれる。
前記アルキル基、前記アリール基、前記複素環基が置換基を有する場合、前記置換基は、アルキル基、アラルキル基、アリール基、複素環基、アミノ基、アルコキシ基、ハロゲン原子のいずれかである。 - R1、R10、R11およびR20の少なくとも2つは、前記シアノ基、前記アルキル基、前記アリール基、前記複素環基からそれぞれ独立に選ばれることを特徴とする請求項1に記載の縮合多環化合物。
- R1、R10、R11およびR20のうち少なくとも2つが電子吸引性の置換基であることを特徴とする請求項1または2に記載の縮合多環化合物。
- 前記電子吸引性の置換基は、フェニル基、ピリジル基、キノリニル基、イソキノリニル基であり、
前記フェニル基は、ハロゲン原子、ハロゲン化アルキル基、シアノ基、ベンゾイミダゾリル基のいずれかを有することを特徴とする請求項3に記載の縮合多環化合物。 - R1、R10、R11およびR20のうち2つが水素原子であることを特徴とする請求項2乃至4のいずれか一項に記載の縮合多環化合物。
- R1およびR10、R11およびR20のいずれか1つの組がそれぞれ水素原子であることを特徴とする請求項2乃至5のいずれか一項に記載の縮合多環化合物。
- 青色の光を発することを特徴とする請求項1乃至6のいずれか一項に記載の縮合多環化合物。
- 一対の電極と前記一対の電極の間に配置されている有機化合物層とを有する有機発光素子であって、前記有機化合物層は、請求項1乃至7のいずれか一項に記載の縮合多環化合物を有することを特徴とする有機発光素子。
- 前記有機化合物層は、ホストとゲストとを有する発光層を有し、
前記ゲストは前記縮合多環化合物であることを特徴とする請求項8に記載の有機発光素子。 - 青色の光を発することを特徴とする請求項8または9に記載の有機発光素子。
- 白色を発する有機発光素子であって、
前記有機化合物層は、複数の発光材料を有し、
前記複数種の発光材料いずれか1つは、前記縮合多環化合物であり、
前記複数種の発光材料のうち少なくとも1つは、前記複数種の発光材料と異なる色を発光する発光材料であることを特徴とする請求項8または9に記載の有機発光素子。 - 白色を発する有機発光素子であって、
複数の発光層を有し、前記複数の発光層のうちいずれか1つは、前記縮合多環化合物を有し、
前記複数の発光層のうち少なくとも1層は、前記複数の発光層のうちの他の発光層と異なる色を発光する発光層であることを特徴とする請求項8または9に記載の有機発光素子。 - 一対の電極と前記一対の電極の間に配置されている有機化合物層を有する有機発光素子であって、
前記有機化合物層は、請求項1に記載の一般式[1]で示される縮合多環化合物および一般式[2]で示される縮合多環化合物を有することを特徴とする有機発光素子。 - 複数の画素を有し、前記複数の画素の発光を制御することにより表示する表示装置であって、
前記複数の画素のうち少なくともひとつは、請求項8乃至13のいずれか一項に記載の有機発光素子と前記有機発光素子に接続されているトランジスタとを有することを特徴とする表示装置。 - 画像情報を入力する入力部と、画像を表示する表示部とを有し、前記表示部は、請求項14に記載の表示装置であることを特徴とする画像情報処理装置。
- 請求項8乃至13のいずれか一項に記載の有機発光素子と前記有機発光素子に接続されているAC/DCコンバーター回路とを有することを特徴とする照明装置。
- 感光体と、前記感光体を帯電させる帯電部と、前記感光体を露光して静電潜像を形成する露光部と、前記感光体に形成された静電潜像を現像する現像器とを有する画像形成装置であって、前記露光部は、請求項8乃至13のいずれか一項に記載の有機発光素子を有することを特徴とする画像形成装置。
- 感光体を露光するための露光器であって、前記露光器は、請求項8乃至13のいずれか一項に記載の有機発光素子と前記有機発光素子に接続されているトランジスタとを有することを特徴とする露光器。
- 前記有機発光素子は、前記感光体の長軸方向に沿って列を形成して配置されていることを特徴とする請求項18に記載の露光器。
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