WO1999059382A1 - Dispositif a electroluminescence organique - Google Patents
Dispositif a electroluminescence organique Download PDFInfo
- Publication number
- WO1999059382A1 WO1999059382A1 PCT/JP1999/002377 JP9902377W WO9959382A1 WO 1999059382 A1 WO1999059382 A1 WO 1999059382A1 JP 9902377 W JP9902377 W JP 9902377W WO 9959382 A1 WO9959382 A1 WO 9959382A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- hole injection
- layer
- anode
- organic
- injection layer
- Prior art date
Links
- 238000005401 electroluminescence Methods 0.000 title claims description 19
- 238000002347 injection Methods 0.000 claims abstract description 62
- 239000007924 injection Substances 0.000 claims abstract description 62
- 230000009477 glass transition Effects 0.000 claims abstract description 9
- 238000006243 chemical reaction Methods 0.000 claims abstract description 8
- 150000001875 compounds Chemical class 0.000 claims description 7
- 239000004065 semiconductor Substances 0.000 claims description 7
- 229910052799 carbon Inorganic materials 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 239000012212 insulator Substances 0.000 claims description 4
- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical compound 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 claims description 4
- GEYOCULIXLDCMW-UHFFFAOYSA-N 1,2-phenylenediamine Chemical group NC1=CC=CC=C1N GEYOCULIXLDCMW-UHFFFAOYSA-N 0.000 abstract description 9
- 230000000052 comparative effect Effects 0.000 description 17
- 239000010408 film Substances 0.000 description 17
- 239000000463 material Substances 0.000 description 13
- XCJYREBRNVKWGJ-UHFFFAOYSA-N copper(II) phthalocyanine Chemical compound [Cu+2].C12=CC=CC=C2C(N=C2[N-]C(C3=CC=CC=C32)=N2)=NC1=NC([C]1C=CC=CC1=1)=NC=1N=C1[C]3C=CC=CC3=C2[N-]1 XCJYREBRNVKWGJ-UHFFFAOYSA-N 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 101100099988 Arabidopsis thaliana TPD1 gene Proteins 0.000 description 2
- 101100352918 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) PTC1 gene Proteins 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 125000002837 carbocyclic group Chemical group 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 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 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000011368 organic material Substances 0.000 description 2
- -1 porphyrin compound Chemical class 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 239000007983 Tris buffer Substances 0.000 description 1
- 229910007709 ZnTe Inorganic materials 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
- 150000001408 amides Chemical class 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000005525 hole transport Effects 0.000 description 1
- RHZWSUVWRRXEJF-UHFFFAOYSA-N indium tin Chemical compound [In].[Sn] RHZWSUVWRRXEJF-UHFFFAOYSA-N 0.000 description 1
- 150000002484 inorganic compounds Chemical class 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 125000000843 phenylene group Chemical group C1(=C(C=CC=C1)*)* 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 125000005259 triarylamine group Chemical group 0.000 description 1
- 238000007738 vacuum evaporation Methods 0.000 description 1
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
- H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
- H10K50/17—Carrier injection layers
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B33/00—Electroluminescent light sources
- H05B33/12—Light sources with substantially two-dimensional radiating surfaces
- H05B33/22—Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of auxiliary dielectric or reflective layers
-
- 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
-
- 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
- H10K85/30—Coordination compounds
- H10K85/311—Phthalocyanine
-
- 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
- H10K85/30—Coordination compounds
- H10K85/321—Metal complexes comprising a group IIIA element, e.g. Tris (8-hydroxyquinoline) gallium [Gaq3]
- H10K85/324—Metal complexes comprising a group IIIA element, e.g. Tris (8-hydroxyquinoline) gallium [Gaq3] comprising aluminium, e.g. Alq3
-
- 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
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
Definitions
- the present invention relates to an organic electroluminescence device having at least a hole injection layer and a light emitting layer interposed between a pair of electrodes.
- Landscape technology
- Electroluminescent devices utilizing electroluminescence are self-luminous and have high visibility, and they are completely solid devices and have excellent impact resistance. Its use has attracted attention.
- the EL device includes an inorganic EL device using an inorganic compound as a light emitting material, and an organic EL device using an organic compound as a light emitting material.
- organic EL devices in particular require much lower drive voltages than inorganic EL devices and are easy to miniaturize. Have been done.
- the organic EL element is based on a laminated element structure of an anode / organic light emitting layer / cathode and provided with a hole injection / transport layer or an electron injection / transport layer as appropriate, such as an anode / hole injection / transport layer /
- a hole injection / transport layer or an electron injection / transport layer as appropriate, such as an anode / hole injection / transport layer /
- the hole injecting and transporting layer has a function of efficiently injecting holes from the anode and transporting the holes to the light emitting layer, and includes a hole injecting layer and a hole transporting layer. In many cases.
- the electron injecting and transporting layer has a function of efficiently injecting electrons from the cathode and transporting the electrons to the light emitting layer.
- the light emitting layer is formed by the recombination of the injected holes and electrons. It has a function to emit light.
- the anode of the organic EL device As the anode of the organic EL device, a transparent electrode made of an IT ⁇ (Indium Tin Oide) film is generally used.
- IT ⁇ Indium Tin Oide
- the hole injection layer is made of an amine-based material having a close ionization potential and high hole mobility to ITO. Often used.
- the surface shape of the ITO greatly affects the element performance. Specifically, if a protrusion or the like is present on the surface of ITO, the crystallization of the organic thin film proceeds from the protrusion as a starting point, thereby increasing a leak current or forming a non-light emitting point called a dark spot. For this reason, the hole injection layer formed on ITO is required to have high amorphousness and good film properties.
- the organic EL element when the organic EL element is driven by constant current driving, the driving voltage increases with time and the luminance decreases. It is thought that such a deterioration phenomenon is due to a chemical reaction such as an oxidation reaction occurring at the interface between the ITO and the hole injection layer which is in direct contact with the ITO, and the deterioration due to driving proceeds.
- an organic EL device in which a hole injecting / transporting zone is composed of a layer containing a hole-injecting porphyrin compound and a layer containing a hole-transporting aromatic tertiary amine is disclosed ( Patent No. 2 5 9 7 3 7 7).
- a CuPc film is provided on ITO, and a hole injection made of a TPD-based oligomer of a triarylamine derivative is formed on the CuPc film.
- a structure in which layers are stacked is disclosed.
- An object of the present invention is to provide an organic EL device which can ensure durability against pulse driving and has excellent heat resistance. Disclosure of the invention The inventors of the present invention have conducted intensive studies and have found that an intermediate layer is interposed between the hole injection layer and the anode, and that a material that satisfies predetermined conditions is used for the hole injection layer, thereby extending the life and heat resistance. The knowledge that the improvement of the property can be realized was obtained. The present invention has been completed based on these findings.
- the gist of the present invention is as follows.
- An organic electroluminescence device comprising an anode and a cathode facing each other, and a hole injection layer and a light emitting layer interposed between the anode and the cathode, wherein the hole injection layer comprises: It contains an oligomer having a phenylenediamine structure and a glass transition temperature of 11 ° C. or higher, and a reaction at the interface between the hole injection layer and the anode occurs between the hole injection layer and the anode.
- An organic electroluminescence device comprising an intermediate layer for suppressing the occurrence of light.
- the intermediate layer is made of a phthalocyanine-based compound.
- the organic electroluminescence device according to the above item 1 or 2, wherein the intermediate layer is made of a carbon film.
- the present invention provides an organic electroluminescence device comprising an anode and a cathode facing each other, and a hole injection layer and a light emitting layer interposed between the anode and the cathode, wherein the hole injection layer comprises It contains an oligomer having a phenylenediamine structure and a glass transition temperature of 110 ° C. or higher, and a reaction at the interface between the hole injection layer and the anode is caused between the hole injection layer and the anode. It is characterized in that an intermediate layer for suppressing is provided.
- the hole injection layer is a layer provided between the anode and the light emitting layer in order to improve hole injection properties.
- the phenylenediamine structure is a structure in which two amides are connected via a phenyl group.
- a material having this structure for example, a general formula (I)
- Ar 4 Ar ' (In the formula, n is an integer of 1 to 3, and Ar 1 to Ar 7 have 6 to 3 carbon atoms.
- those having a glass transition temperature of 110 ° C. or higher are used as the material of the hole injection layer, so that the heat resistance of the device is significantly improved. And excellent luminous efficiency can be obtained.
- the hole injection layer and the anode can be separated from each other. Since it can eliminate chemical reactions, it has excellent resistance to severe driving conditions such as pulse driving. Durability can be ensured and the life of the element can be prolonged.
- the hole injecting layer may be interposed between the anode and the light emitting layer together with a hole transporting layer, and function as a hole injecting and transporting layer for improving both hole injecting and transporting properties. May be provided.
- the oligomer may be a linear oligomer or a branched oligomer.
- the ionization potential of the intermediate layer is preferably larger than the work function of the anode and smaller than the ionization potential of the oligomer in the hole injection layer.
- the hole injection barrier can be reliably reduced, so that the drive voltage can be reduced and the durability can be improved.
- the material constituting the intermediate layer may be an organic substance or an inorganic substance.
- the intermediate layer can be composed of an inorganic semiconductor or an inorganic insulator.
- the inorganic semiconductor include, for example, GaAlN, GaInN, GaN, Six-1Cx (0 ⁇ x ⁇ 1), Si, CuI, ZnTe, ZnS , C dS, C dT e, C d S ex S l— ⁇ (0 ⁇ x ⁇ 1), T e, S e, and the inorganic insulator is S i O x (0 ⁇ x ⁇ 2 ), L i F, L i 2 ⁇ , A l 2 ⁇ 3, T i ⁇ 2, B a F 2, C a F 2, Mg F 2 and the like.
- the intermediate layer can be composed of a phthalocyanine-based compound, a quinatalidone-based compound, or the like.
- the intermediate layer may be composed of a carbon film.
- FIG. 1 is a diagram showing one embodiment of the organic electroluminescence device of the present invention.
- reference numeral 10 denotes a transparent substrate
- reference numeral 11 denotes an anode
- reference numeral 12 denotes a cathode
- reference numeral 13 denotes a light emitting layer
- reference numeral 14 denotes a hole injection layer
- reference numeral 15 is an intermediate layer.
- FIG. 1 shows an organic EL device 1 of the present embodiment.
- the organic EL element 1 of the present embodiment includes a transparent substrate 10 as a support, and a light emitting layer 13 and a hole injection layer 14 made of an organic material between a pair of electrodes 11 and 12 facing each other. It has an interposed element structure, and the transparent substrate 10 is a light extraction surface.
- the anode 11 of the pair of electrodes 11 and 12 is formed of a transparent electrode such as an ITO film, and is formed on a transparent substrate 10 made of glass or the like.
- a hole injection layer 14, a light emitting layer 13 and a cathode 12 are sequentially laminated, and an intermediate layer 15 is interposed between the hole injection layer 14 and the anode 11. Is equipped.
- the hole injection layer 14 has a phenylenediamine structure and includes a linear oligomer or a branched oligomer having a glass transition temperature of 110 ° C. or higher.
- the intermediate layer 15 is a layer for suppressing a reaction at the interface between the hole injection layer 14 and the anode 11, and has an ionization potential larger than the work function of the anode 11 and the hole injection layer.
- the ionization potential of the 14 oligomers is also made of a small material.
- Such an intermediate layer 15 is made of an inorganic semiconductor, a phthalocyanine-based compound, And a pressure-sensitive membrane.
- the layer configuration of the organic EL device of the present invention is not particularly limited as long as it includes a light emitting layer and a hole injection layer.
- the layer structure includes an anode intermediate layer / a hole injection layer / an organic light emitting layer /
- the present invention can be applied to organic EL devices having various layer configurations such as an electron injection / transport layer Z cathode, an anode / intermediate layer / hole injection layer / hole transport layer / organic light emitting layer Z electron injection / transport layer Z cathode.
- Example 1 an organic EL device was obtained by adopting the following specific device configuration in the above embodiment.
- the following layers (1) to (4) were formed by vacuum evaporation.
- TPD 87 and TPD 78 are as follows (
- the organic EL device of Example 2 was the same as that of Example 1 except that the intermediate layer was formed of a carbon film in Example 1.
- Example 1 the organic EL device of Example 3 had the same device configuration as that of Example 1 except that the intermediate layer was formed of a SiO 2 film. However, Si 2 was formed by a sputtering method.
- An organic EL device of Comparative Example 1 was obtained by employing the same device configuration as in Example 1 except that the intermediate layer was omitted in Example 1.
- the organic EL device of Comparative Example 2 had the same device structure as that of Example 1 except that the hole injection layer in Example 1 was a laminated film of TPD74 and TPD78.
- TPD74 is as shown below.
- Comparative Example 3 a device structure similar to that of Example 1 was adopted except that the intermediate layer was omitted and the hole injection layer was a laminated film of TPD1 and TPD2. Organic EL device.
- TPD 1 and TPD 2 are as follows.
- the organic EL device of Comparative Example 3 was the same as that of Example 1 except that the hole injection layer in Example 1 was a laminated film of TPD1 and TPD2.
- the work function of ITO is 5. le V, and the ionization potential of each material of the intermediate layer and the hole injection layer used in Examples 1 and 2 and Comparative Examples 1 to 4 is shown in Table 1. It is on the street.
- Durability evaluation drives each organic EL element at an initial luminance 300 c DZM 2 This was done by measuring the half-life.
- the driving conditions at this time are a duty of 1/1/100 and a driving frequency of 60 Hz.
- the results are shown in Table 2.
- Tg (° C) indicates the glass transition temperature of each material constituting the hole injection layer.
- Example 2 shows that in Example 1, the intermediate layer made of CuPc was provided, so that the pulse life was longer than that of Comparative Example 1 having no intermediate layer. Examples 2 and 3 show that the effect of improving the pulse life can be obtained even when the intermediate layer is a carbon film or SiO 2. On the other hand, in Comparative Example 2, since the hole injection layer was formed using TPD74 having a low glass transition temperature (Tg), the heat resistance was inferior.
- Comparative Example 3 is a case where the hole injection layer is formed by TPD 1 and TPD 2 having no phenylenediamine structure, and has a life similar to that of Comparative Example 1.
- Comparative Example 4 the device of Comparative Example 3 was provided with an intermediate layer, but since the material of the hole injection layer did not have a phenylenediamine structure, the extension of the pulse life was small even if the intermediate layer was provided. You can see that.
- the hole injection layer using an oligomer having a glass transition temperature of 110 ° C. or higher and having a phenylenediamine structure, heat resistance and heat resistance are improved. Luminous efficiency can be improved.
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Electroluminescent Light Sources (AREA)
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/446,905 US6437373B1 (en) | 1998-05-08 | 1999-05-07 | Organic electroluminescence layer with oligomer hole injection layer |
EP99918332A EP1009197A4 (en) | 1998-05-08 | 1999-05-07 | ORGANIC ELECTROLUMINESCENT DEVICE |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10/125819 | 1998-05-08 | ||
JP12581998 | 1998-05-08 |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/446,905 A-371-Of-International US6437373B1 (en) | 1998-05-08 | 1999-05-07 | Organic electroluminescence layer with oligomer hole injection layer |
US10/139,261 Continuation US6762438B2 (en) | 1998-05-08 | 2002-05-07 | Organic electroluminescent layer with oligomer hole injection layer |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999059382A1 true WO1999059382A1 (fr) | 1999-11-18 |
Family
ID=14919733
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1999/002377 WO1999059382A1 (fr) | 1998-05-08 | 1999-05-07 | Dispositif a electroluminescence organique |
Country Status (4)
Country | Link |
---|---|
US (3) | US6437373B1 (ja) |
EP (1) | EP1009197A4 (ja) |
TW (1) | TW521537B (ja) |
WO (1) | WO1999059382A1 (ja) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
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KR100837029B1 (ko) * | 1998-09-09 | 2008-06-10 | 이데미쓰 고산 가부시키가이샤 | 유기 전자발광 소자 및 페닐렌디아민 유도체 |
JP3804858B2 (ja) | 2001-08-31 | 2006-08-02 | ソニー株式会社 | 有機電界発光素子およびその製造方法 |
US7488986B2 (en) * | 2001-10-26 | 2009-02-10 | Semiconductor Energy Laboratory Co., Ltd. | Light emitting device |
JP4539078B2 (ja) * | 2003-11-07 | 2010-09-08 | セイコーエプソン株式会社 | 有機エレクトロルミネッセンス装置の製造方法 |
EP1722602A1 (en) * | 2004-03-05 | 2006-11-15 | Idemitsu Kosan Co., Ltd. | Organic electroluminescent device and organic electroluminescent display |
KR100587304B1 (ko) * | 2004-06-03 | 2006-06-08 | 엘지전자 주식회사 | 유기 el 소자 및 그 제조 방법 |
US7132355B2 (en) * | 2004-09-01 | 2006-11-07 | Micron Technology, Inc. | Method of forming a layer comprising epitaxial silicon and a field effect transistor |
WO2006095335A2 (en) * | 2005-03-07 | 2006-09-14 | Noam Camiel | System and method for a dynamic policies enforced file system for a data storage device |
US7795805B2 (en) * | 2006-06-20 | 2010-09-14 | Lg Display Co., Ltd. | Organic light emitting device and method of manufacturing the same |
KR20090128427A (ko) * | 2007-02-28 | 2009-12-15 | 이데미쓰 고산 가부시키가이샤 | 유기 el 소자 |
KR20090010883A (ko) * | 2007-07-23 | 2009-01-30 | 소니 가부시끼가이샤 | 유기 전계발광 소자 및 표시 장치 |
JP5417732B2 (ja) * | 2008-03-31 | 2014-02-19 | 住友化学株式会社 | 親液撥液パターンの形成方法および有機エレクトロルミネッセンス素子の製造方法 |
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JPH09222741A (ja) * | 1995-12-11 | 1997-08-26 | Toyo Ink Mfg Co Ltd | 正孔輸送材料およびその用途 |
US6150143A (en) * | 1996-02-09 | 2000-11-21 | Gist-Brocades B.V. | Natamycin recovery |
JP3645642B2 (ja) * | 1996-03-25 | 2005-05-11 | Tdk株式会社 | 有機エレクトロルミネセンス素子 |
JP3650218B2 (ja) * | 1996-05-10 | 2005-05-18 | ケミプロ化成株式会社 | 高分子量芳香族アミン化合物およびそれよりなるホール輸送性材料 |
KR100272260B1 (ko) * | 1996-11-27 | 2000-11-15 | 김영환 | 유사다이아몬드를 이용한 박막트랜지스터 및 그의 제조방법 |
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1999
- 1999-05-05 TW TW088107312A patent/TW521537B/zh not_active IP Right Cessation
- 1999-05-07 EP EP99918332A patent/EP1009197A4/en not_active Withdrawn
- 1999-05-07 US US09/446,905 patent/US6437373B1/en not_active Expired - Fee Related
- 1999-05-07 WO PCT/JP1999/002377 patent/WO1999059382A1/ja active Application Filing
-
2002
- 2002-05-07 US US10/139,261 patent/US6762438B2/en not_active Expired - Fee Related
-
2004
- 2004-04-21 US US10/828,323 patent/US20040232437A1/en not_active Abandoned
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Also Published As
Publication number | Publication date |
---|---|
EP1009197A1 (en) | 2000-06-14 |
US6437373B1 (en) | 2002-08-20 |
US20030015723A1 (en) | 2003-01-23 |
US20040232437A1 (en) | 2004-11-25 |
EP1009197A4 (en) | 2006-07-12 |
US6762438B2 (en) | 2004-07-13 |
TW521537B (en) | 2003-02-21 |
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