WO2005002286A1 - 有機エレクトロルミネッセンス素子、その製法及び電極フィルム - Google Patents
有機エレクトロルミネッセンス素子、その製法及び電極フィルム Download PDFInfo
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- WO2005002286A1 WO2005002286A1 PCT/JP2004/008995 JP2004008995W WO2005002286A1 WO 2005002286 A1 WO2005002286 A1 WO 2005002286A1 JP 2004008995 W JP2004008995 W JP 2004008995W WO 2005002286 A1 WO2005002286 A1 WO 2005002286A1
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- 238000005401 electroluminescence Methods 0.000 title claims abstract description 6
- 238000000034 method Methods 0.000 title claims description 57
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- 238000004519 manufacturing process Methods 0.000 claims description 31
- 238000010438 heat treatment Methods 0.000 claims description 16
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- 238000003825 pressing Methods 0.000 claims description 4
- 239000010410 layer Substances 0.000 description 553
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- 230000005525 hole transport Effects 0.000 description 26
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- 239000000203 mixture Substances 0.000 description 13
- 238000004544 sputter deposition Methods 0.000 description 12
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- 238000001771 vacuum deposition Methods 0.000 description 4
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- 150000004866 oxadiazoles Chemical class 0.000 description 3
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- 239000011261 inert gas Substances 0.000 description 2
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- 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 1
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- 229910052700 potassium Inorganic materials 0.000 description 1
- 150000003219 pyrazolines Chemical class 0.000 description 1
- 150000003222 pyridines Chemical class 0.000 description 1
- 229940083082 pyrimidine derivative acting on arteriolar smooth muscle Drugs 0.000 description 1
- 150000003230 pyrimidines Chemical class 0.000 description 1
- 150000003248 quinolines Chemical class 0.000 description 1
- 150000003252 quinoxalines Chemical class 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
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- YYMBJDOZVAITBP-UHFFFAOYSA-N rubrene Chemical compound C1=CC=CC=C1C(C1=C(C=2C=CC=CC=2)C2=CC=CC=C2C(C=2C=CC=CC=2)=C11)=C(C=CC=C2)C2=C1C1=CC=CC=C1 YYMBJDOZVAITBP-UHFFFAOYSA-N 0.000 description 1
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- PJANXHGTPQOBST-UHFFFAOYSA-N stilbene Chemical class C=1C=CC=CC=1C=CC1=CC=CC=C1 PJANXHGTPQOBST-UHFFFAOYSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- TVIVIEFSHFOWTE-UHFFFAOYSA-K tri(quinolin-8-yloxy)alumane Chemical compound [Al+3].C1=CN=C2C([O-])=CC=CC2=C1.C1=CN=C2C([O-])=CC=CC2=C1.C1=CN=C2C([O-])=CC=CC2=C1 TVIVIEFSHFOWTE-UHFFFAOYSA-K 0.000 description 1
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- YVTHLONGBIQYBO-UHFFFAOYSA-N zinc indium(3+) oxygen(2-) Chemical compound [O--].[Zn++].[In+3] YVTHLONGBIQYBO-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- H05B33/02—Details
- H05B33/04—Sealing arrangements, e.g. against humidity
-
- 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
- H10K50/80—Constructional details
- H10K50/84—Passivation; Containers; Encapsulations
- H10K50/844—Encapsulations
-
- 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
- H10K50/80—Constructional details
- H10K50/84—Passivation; Containers; Encapsulations
- H10K50/846—Passivation; Containers; Encapsulations comprising getter material or desiccants
-
- 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
- H10K50/80—Constructional details
- H10K50/805—Electrodes
- H10K50/82—Cathodes
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
- H10K71/40—Thermal treatment, e.g. annealing in the presence of a solvent vapour
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
- H10K71/50—Forming devices by joining two substrates together, e.g. lamination techniques
Definitions
- the present invention relates to an organic electroluminescent device, a production method thereof, and an electrode film.
- An organic electroluminescent device has a basic configuration in which a transparent electrode layer, an organic luminescent material layer, and an opaque electrode layer are laminated in this order on a surface of a transparent glass substrate.
- the transparent electrode layer is formed from a transparent conductive material typified by ITO (tin-doped indium oxide), and is used as a positive electrode layer.
- the opaque electrode layer is formed from a metal material typified by an Mg-Ag alloy, and is used as a negative electrode layer.
- holes are injected from the positive electrode layer and electrons are injected from the negative electrode layer into the organic light emitting material layer, and holes and electrons are injected into the organic light emitting material layer.
- the organic electroluminescent element is generally provided with an organic material layer including at least an organic light emitting material layer between the positive electrode layer and the negative electrode layer.
- the negative electrode layer of the organic electroluminescent device is formed from an active metal material having a small work function (usually 4 eV or less) capable of efficiently injecting electrons into the organic material layer. It is easily oxidized and deteriorated when touched. For this reason, if moisture or oxygen existing in the air enters the organic electroluminescent device, the deterioration of the cathode layer will result. In some cases, the luminance of the light emitting element may be reduced, or a problem may occur such that the negative electrode layer and the organic material layer are separated to form a non-light emitting portion in the light emitting element.
- a small work function usually 4 eV or less
- a conventional organic electroluminescent device is, for example, a glass substrate on which a light emitting element is formed, and a glass plate (hereinafter referred to as a sealing glass) fixed at a peripheral portion of the substrate by a low moisture-permeable adhesive.
- the board is air-tightly housed in a space consisting of a board and a board. Further, it is known that a moisture-absorbing material layer is provided on the inner surface of the sealing glass plate in order to absorb the moisture remaining in the space after the sealing.
- Patent Document 1 discloses a moisture absorbing film made of an oxide of an alkaline earth metal. By providing this moisture absorbing film on the inner surface of the sealing glass plate, it is said that the intrusion of moisture into the organic electroluminescent device can be suppressed.
- Patent Document 2 discloses a desiccant comprising an organometallic compound. A solution obtained by dissolving the drying agent in an organic solvent is applied to the inner surface of the sealing glass plate, and dried to form a hygroscopic material layer. It is said that intrusion can be suppressed.
- Patent Document 3 discloses that, for example, an organic electroluminescent element is formed on a resin substrate via an inorganic polyimide film, and the surface thereof is further covered with an inorganic passivation film, so that the light emitting element can be formed inside the light emitting element.
- a method for suppressing intrusion of moisture is disclosed. Specifically, a silicon nitride oxide film is used as the inorganic barrier film, and a silicon nitride film is used as the inorganic passivation film.
- Patent Document 1 JP-A-2000-260562
- Patent Document 2 Japanese Patent Application Laid-Open No. 2003-144830
- Patent Document 3 Japanese Patent Application Laid-Open No. 2002-100469
- the method in which the glass plate for sealing is attached to the organic electroluminescent device one by one to suppress the invasion of moisture into the inside of the light emitting device is said to have low productivity of the light emitting device.
- the method of covering the surface of the organic electroluminescent device with an inorganic passivation film is to obtain a low moisture permeability equivalent to that of a glass plate for sealing. In such a case, it is necessary to increase the thickness of the inorganic passivation film, and there is a problem that the productivity of the light emitting element is low.
- An object of the present invention is to provide an organic electroluminescent device having an organic electroluminescent device in which the intrusion of water into a light emitting device is suppressed, and an efficient method for producing the device.
- Another object of the present invention is to provide an electrode film that can be used for efficiently producing an organic electroluminescent device in which entry of moisture into a light-emitting device is suppressed.
- the present invention provides an organic material layer including a transparent electrode layer and an organic light emitting material layer on a surface of a transparent substrate.
- An opaque electrode layer an insulating layer, a metal layer, and a resin film in this order.
- the organic electroluminescent device having such a configuration is referred to as a first organic electroluminescent device.
- Preferred modes of the first organic electroluminescent device are as follows.
- the thickness of the metal layer is in the range of 10 to 500 nm.
- the thickness of the insulating layer is in the range of 10 to 100Onm.
- the insulating layer is made of a hygroscopic material.
- a hygroscopic material layer is provided between the insulating layer and the metal layer.
- the hygroscopic material is an alkaline earth metal oxide.
- the present invention also provides an electrode substrate having a transparent electrode layer laminated on the surface of a transparent substrate, and at least a metal layer, an insulating layer, and an opaque electrode layer laminated on the surface of a resin film in this order.
- There is also a method of manufacturing an organic electroluminescent device including a step of applying pressure to a bonded electrode substrate and an electrode film and softening an organic material layer by heating to bond the organic material layer to each other.
- a method for manufacturing such an organic electroluminescent device will be referred to as a first manufacturing method.
- Preferred embodiments of the first production method are as follows.
- the thickness of the metal layer is in the range of 10 to 500 nm.
- the thickness of the insulating layer is in the range of 10 to 100Onm.
- the insulating layer is made of a hygroscopic material.
- a hygroscopic material layer is provided between the metal layer and the insulating layer.
- the hygroscopic material is an alkaline earth metal oxide.
- the present invention also resides in an electrode film in which at least a metal layer, an insulating layer, and an opaque electrode layer are laminated in this order on the surface of a resin film.
- the electrode film having such a configuration is referred to as a first electrode film.
- Preferred embodiments of the first electrode film are as follows.
- the thickness of the metal layer is in the range of 10 to 500 nm.
- the thickness of the insulating layer is in the range of 10 to 100Onm.
- the insulating layer is made of a hygroscopic material.
- a hygroscopic material layer is provided between the metal layer and the insulating layer.
- the hygroscopic material is an alkaline earth metal oxide.
- the present invention also resides in a roll-shaped electrode film obtained by winding the first electrode film in a roll shape.
- the roll-shaped electrode film having such a configuration is referred to as a first roll-shaped electrode film. Put on.
- the present invention also provides an organic electe having a configuration in which a transparent electrode layer, an organic material layer including an organic luminescent material layer, an opaque electrode layer, a resin film, and a metal layer are laminated in this order on the surface of a transparent substrate. There is also a mouth luminescence element.
- the organic electroluminescent device having such a configuration is referred to as a second organic electroluminescent device.
- Preferred embodiments of the second organic electroluminescent device are as follows.
- the thickness of the metal layer is in the range of 10 to 500 nm.
- An insulating hygroscopic material layer is provided between the opaque electrode layer and the resin film.
- An insulating layer and a hygroscopic material layer are provided between the opaque electrode layer and the resin film in this order from the side of the opaque electrode layer.
- the hygroscopic material is an alkaline earth metal oxide.
- the present invention also provides an electrode substrate formed by laminating a transparent electrode layer on the surface of a transparent substrate, and an electrode film formed by laminating an opaque electrode layer on the surface of a resin film and a metal layer on the back surface.
- An organic material layer including an organic light emitting material layer is formed on a surface of at least one of the transparent electrode layer and the opaque electrode layer; a step of preparing the electrode substrate and the electrode film; Superposing the organic material layer between the transparent electrode layer and the opaque electrode layer so that the organic material layer is disposed; and applying pressure to the superposed electrode substrate and the electrode film and heating the organic material layer by heating.
- There is also a method of manufacturing an organic electroluminescent device including a step of bonding by softening.
- a method for producing such an organic electroluminescent device will be referred to as a second production method.
- Preferred embodiments of the second production method are as follows.
- the thickness of the metal layer is in the range of 10 to 500 nm.
- An insulating hygroscopic material layer is provided between the resin film and the opaque electrode layer.
- a hygroscopic material layer and an insulating layer are provided between the resin film and the opaque electrode layer in this order from the resin film side.
- the hygroscopic material is an alkaline earth metal oxide.
- the present invention also resides in an electrode film formed by laminating an opaque electrode layer on the surface of a resin film and a metal layer on the back surface.
- the electrode film having such a configuration is referred to as a second electrode film.
- Preferred embodiments of the second electrode film are as follows.
- the thickness of the metal layer is in the range of 10 to 500 nm.
- An insulating hygroscopic material layer is provided between the resin film and the opaque electrode layer.
- a hygroscopic material layer and an insulating layer are provided between the resin film and the opaque electrode layer in this order from the resin film side.
- the hygroscopic material is an alkaline earth metal oxide.
- the present invention also provides a roll-shaped electrode film obtained by winding the above-mentioned second electrode film into a roll shape.
- the roll-shaped electrode film having such a configuration is referred to as a second roll-shaped electrode film.
- transparent means that the transmittance of visible light is 60% or more, preferably 70% or more. Further, “opaque” means that the transmittance of visible light is 30% or less, preferably 20% or less.
- the electrode film of the present invention has a basic structure in which a metal layer, an insulating layer, and an opaque electrode layer are laminated in this order on the surface of a resin film.
- the metal film of the electrode film of the present invention suppresses the invasion of moisture from the resin film side, and can be wound into a roll to exhibit excellent flexibility.
- By using such an electrode film or a roll-shaped electrode film it is possible to reduce the invasion of moisture from the side of the opaque electrode layer into the inside of the light-emitting element and to improve the durability of the organic electroluminescent element with excellent durability. Can be produced well.
- the hygroscopic material can be used to reduce the moisture remaining inside the light emitting element.
- the resulting organic to absorb and remove The durability of the electorum luminescence element can be further improved.
- the first organic electroluminescent (EL) element of the present invention comprises a transparent electrode layer, an organic material layer including an organic luminescent material layer, an opaque electrode layer, It has a configuration in which an edge layer, a metal layer, and a resin film are laminated in this order.
- the transparent electrode layer of the organic EL element is generally a positive electrode layer
- the opaque electrode layer is generally a negative electrode layer.
- the present invention will be described by taking as an example a case where the transparent electrode layer is a positive electrode layer and the opaque electrode layer is a negative electrode layer.
- FIG. 1 is a cross-sectional view showing a configuration example of the first organic EL device of the present invention.
- the first organic EL element 11 includes a transparent substrate 12, a positive electrode layer (transparent electrode layer) 15, an organic material layer including an organic light emitting material layer, a negative electrode layer (opaque electrode layer) 25, an insulating layer 24, It has a configuration in which a metal layer 23 and a resin film 22 are laminated in this order.
- the organic material layer of the organic EL element 11 includes a hole transport layer 16 and an organic light emitting material layer 17. Light generated in the organic light emitting material layer 17 is extracted from the transparent substrate 12 side to the outside of the light emitting element. Arrow 10 in FIG. 1 indicates the direction of light extraction.
- the transparent substrate 12 a substrate exhibiting low moisture permeability is used.
- the transparent substrate 12 include a ceramic substrate such as a glass substrate, and a resin substrate (or a resin film) subjected to a moisture-proof treatment.
- a method of moisture-proofing the resin substrate a method of providing a low moisture-permeable film on the surface of the resin substrate can be mentioned.
- the low moisture permeable film include a silicon oxide film, a silicon nitride film, a silicon nitride oxide film, and a metal film.
- the thickness of the organic light emitting material layer needs to be small enough to transmit visible light in order to extract the light generated in the organic light emitting material layer to the outside of the light emitting element.
- the thickness of the metal film used as the low moisture permeable film is preferably several tens nm or less.
- the periphery of the organic EL element 11 is subjected to a moisture-proof treatment in order to suppress intrusion of moisture from the periphery into the light emitting element.
- a moisture proofing method there is a method of forming a low moisture permeable resin layer on the periphery of the organic EL element.
- the low moisture-permeable resin layer can be formed by applying a room-temperature-curable or ultraviolet-curable resin to the periphery of the light-emitting element and curing the resin.
- Representative examples of resins include epoxy resins and resins. Krill resin. As these resins, for example, the same resins as those contained in the adhesive for bonding the substrate of the conventional organic EL element and the glass plate for sealing can be used.
- the organic EL element 11 is characterized in that an insulating layer 24, a metal layer 23, and a resin film 22 are laminated on the surface of the negative electrode layer 25.
- the metal layer 23 provided on the surface of the negative electrode layer 25 with the insulating layer 24 interposed therebetween is formed of a metal material and has low moisture permeability.
- Intrusion of moisture into the light emitting element from the side of the negative electrode layer 25 can be suppressed.
- the surface of the resin film 22 (the surface opposite to the side of the metal layer 23) is further added to the metal layer 23. Another metal layer can be laminated.
- FIG. 2 is a cross-sectional view illustrating a configuration of a first electrode film used for manufacturing the organic EL element 11 of FIG.
- the first electrode film 21 has a configuration in which a metal layer 23, an insulating layer 24, and a negative electrode layer (opaque electrode layer) 25 are laminated in this order on the surface of a resin film 22.
- Examples of the resin film 22 include a polyester film (eg, a polyethylene terephthalate film), a polycarbonate film, a polyimide film, a polyether sulfone phenol, a polyether imide film, a polyphenylene sulfide film, a polysulfone film, and a polyether film.
- Examples include ether ketone films, polyamide phenolic films, poly (methyl methacrylate) films, polyethylene naphthalate films, polyarylate films, and cycloolefin polymer films.
- the thickness of the resin film 22 is preferably in the range of 3 to 1000 zm, more preferably in the range of 10 to 500 ⁇ m, and more preferably in the range of 10 to 300 ⁇ m. Even better.
- the metal layer 23 is formed from a metal material. Metallic materials have both low levels, moisture permeability and excellent flexibility. In the first electrode film 21, the metal layer 23 suppresses the invasion of moisture from the resin film 22 side.
- the electrode film 21 has a metal layer 2 Since 3 is flexible, it can be wound up in a roll. In order to further suppress intrusion of moisture from the side of the resin film 22, a metal layer different from the metal layer 23 is further laminated on the back surface of the resin film (the surface opposite to the metal layer 23 side). You can also.
- Examples of the metal material forming the metal layer 23 include gold, silver, copper, aluminum, titanium, palladium, platinum, and an alloy composition containing at least one of the metal materials.
- Typical examples of the method of forming the metal layer 23 include a dry film forming method such as a vacuum evaporation method and a sputtering method, and a wet film forming method such as a gravure printing method and a blade coating method.
- the thickness of the metal layer 23 is preferably in the range of 5 to 500 nm S, and preferably in the range of 10 to 500 nm so that cracks do not occur when the electrode film 21 is formed into a roll. I like it.
- the insulating layer 24 provided between the metal layer 23 and the negative electrode layer 25 prevents the metal layer and the negative electrode layer from being electrically connected.
- a plurality of negative electrode layers for example, striped negative electrode layers
- these negative electrode layers are electrically connected to each other through the metal layer 23. Prevent short circuit.
- insulating material As a material of the insulating layer 24, a known insulating material can be used.
- insulating materials include metal oxide materials such as Ti ⁇ , Al 2 O 3, Nb 2 O 3, Ta N, Si ⁇ , and SiN, as well as cold-setting, thermosetting, or light-curing (preferably ultraviolet Curable) resin material.
- resin material include an epoxy resin and an acrylic resin.
- Examples of a method for forming the insulating layer 24 include a dry film forming method such as a vacuum evaporation method and a sputtering method, and a wet film forming method such as a screen printing method, a gravure printing method, and an inkjet method.
- a dry film forming method such as a vacuum evaporation method and a sputtering method
- a wet film forming method such as a screen printing method, a gravure printing method, and an inkjet method.
- the thickness of the insulating layer 24 is preferably in the range of 10 to 100Onm.
- the thickness of the insulating layer is appropriately set according to the hardness of the material of the insulating layer so that cracks do not occur when the electrode film 21 is formed into a roll shape.
- the thickness of the insulating layer 24 is preferably in the range of 10 to 500 nm, more preferably in the range of 10 to 180 nm, and even more preferably in the range of 10 to 150 nm.
- the material and thickness of the negative electrode layer 25 are the same as those of the conventional organic EL device. The material and thickness of the negative electrode layer will be described later.
- an adhesive layer may be provided between them.
- the material of the adhesive layer for example, the insulating material forming the insulating layer 24 can be used.
- the preferable range of the thickness of the adhesive layer is the same as that of the insulating layer 24 described above.
- FIG. 3 is a cross-sectional view showing another configuration example of the first electrode film of the present invention.
- another metal layer 33 and an insulating layer 34 are provided between the insulating layer 24 and the negative electrode layer (opaque electrode layer) 25 from the insulating layer 24 side. Except for this, it is the same as the electrode film 21 of FIG.
- the two metal layers 23 and 33 included in the electrode film 31 can further suppress the entry of moisture and oxygen into the organic EL element.
- FIG. 9 is a cross-sectional view showing still another configuration example of the first electrode film of the present invention.
- the electrode film 91 shown in FIG. 9 has a structure in which a metal layer 23, a hygroscopic material layer 29, an insulating layer 24, and a negative electrode layer 25 are laminated in this order on the surface of a resin film 22.
- the configuration of the electrode film 91 is the same as that of the electrode film 21 of FIG. 2 except that a hygroscopic material layer 29 is provided between the metal layer 23 and the insulating layer 24.
- hygroscopic material layer 29 As a material of the hygroscopic material layer 29, a known hygroscopic material that can be formed in a layer shape can be used. Representative examples of such hygroscopic materials include oxides of alkaline earth metals (Ca, Sr, Ba, Ra, Be, Mg) described in Patent Document 1 and aluminum oxides described in Patent Document 2 Organometallic compounds represented by peroxidic acid octylate are exemplified.
- Examples of the method for forming the hygroscopic material layer 29 from an oxide of an alkaline earth metal include an electron beam evaporation method and a sputtering method.
- the sputtering method it is preferable to use a target formed from an alkaline earth metal peroxide.
- the hygroscopic material layer is made of an acid formed by sputtering using a strontium peroxide (SrS) target.
- strontium halide (SrO) layer is particularly preferred.
- the organometallic compound represented by the above-mentioned aluminum oxide octylate is prepared by adding toluene
- a method of applying or printing a solution dissolved in an organic solvent such as silene is exemplified.
- Still another example of the hygroscopic material includes a mixture of a desiccant and a resin material.
- JP-A-2001-345175 discloses a method in which a mixture of a powdered solid desiccant and a resin material is applied in a layer on the surface of a glass plate for sealing, and a glass plate for sealing provided with this mixture layer is used.
- a method for manufacturing an organic EL device is disclosed, and as an example of a method for forming a mixture layer, Ba ⁇ powder (a desiccant) is mixed and dispersed in a heated and melted ethylene monoacetate copolymer, and the mixture is dispersed in a doctor. It describes a method of applying to a sealing glass plate by a blade method.
- JP-A-2001-57287 discloses an organic EL device provided with a sealing glass plate provided with a mixture layer of a desiccant and a resin material.As an example of a method for forming this mixture layer, CaH (desiccant ) And curable liquid silicone rubber are applied to the glass plate for sealing.
- the electrode film of the present invention has a hygroscopic material layer made of a mixture of a desiccant and a resin material on the surface of the metal layer formed on the resin film, for example, in the same manner as described in each of the above publications. It can be manufactured by forming and then forming an insulating layer and a negative electrode layer.
- the thickness of the hygroscopic material layer 29 is preferably 100 ⁇ m or less, more preferably in the range of 0.1 to 30 ⁇ m.
- the invasion of moisture from the resin film 22 side into the light emitting device is suppressed by the metal layer 23. Furthermore, since the moisture remaining inside the light emitting element after the electrode substrate and the electrode film are bonded by the hygroscopic material layer 29 is absorbed, deterioration of the negative electrode layer 25 is more effectively suppressed, and excellent durability is achieved. Is shown.
- a hygroscopic material layer is formed on the sealing glass as in the case of the conventional organic EL element, and then the organic EL element is used. Since it is not necessary to seal the light emitting elements one by one, the light emitting element can be manufactured efficiently.
- the insulating layer 24 without providing the hygroscopic material layer 29 on the electrode film 91 may be formed of an insulating hygroscopic material.
- Representative examples of the insulating hygroscopic material include the alkaline earth metal oxide described in Patent Document 1 and the organometallic compound described in Patent Document 2.
- the thickness of the insulating layer 24 is preferably 100 ⁇ m or less, more preferably 0.1 to 30 ⁇ ⁇ . .
- FIG. 4 is a diagram showing a configuration example of the first roll-shaped electrode film of the present invention.
- the roll-shaped electrode film 20 shown in FIG. 4 winds an electrode film 21 in which a metal layer 23, an insulating layer 24, and a striped negative electrode layer 25 are laminated on the surface of a resin film 22 in a roll shape. It is composed of Thus, by winding the electrode film 21 in a roll shape, the negative electrode layer 25 is prevented from directly contacting the atmosphere, and the deterioration of the negative electrode layer 25 can be suppressed.
- the roll-shaped electrode film 20 is formed by winding the electrode film 21 in a vacuum or in an inert gas (eg, nitrogen gas) in order to suppress the deterioration of the negative electrode layer 25. It is preferable to make the shape. It is more preferable that the roll-shaped electrode film 20 be entirely packaged under vacuum or packed with an inert gas.
- an inert gas eg, nitrogen gas
- the outermost periphery of the roll-shaped electrode film 20 has a configuration in which the metal layer 23 is laminated on the surface of the resin film 22.
- the outermost periphery of the roll is covered with the metal layer 23 in a state where the entire film is wound up.
- the deterioration of the negative electrode layer 25 due to the intrusion of moisture from the outer peripheral surface of the roll-shaped electrode film 20 is further reduced. Can be suppressed.
- a configuration in which a metal layer is laminated on the surface of the resin film can be adopted for two or more turns outside the winding of the roll-shaped electrode film 20.
- the electrode Fi Noremu, 2. while applying tension of 5 X 10 5 to 4. 0 X 10 7 [NZm 2 ] Certificates It is preferable to form a roll by scraping. By applying such tension, the electrode films adjacent to each other in a rolled state are sufficiently adhered to each other, so that the infiltration of moisture from the roll side surface of the rolled electrode film is further suppressed. .
- the electrode film 21 is preferably wound into a core tube made of paper, resin, or metal to be in a roll shape.
- a metal core tube or a core tube whose surface is covered with a metal film to suppress the ingress of moisture from the core tube side of the rolled electrode film.
- the diameter of the core tube is more preferably in the range of 30 to 300 mm, more preferably in the range of 50 to 200 mm, and even more preferably in the range of 70 to 175 mm.
- the organic EL element includes, for example, an electrode substrate having a configuration in which a transparent positive electrode layer and an organic material layer including an organic light emitting material layer are laminated on the surface of a transparent substrate, and the first electrode film described above. It is produced by overlapping the organic material layers so as to be arranged between the positive electrode layer and the negative electrode layer, and joining them together.
- FIG. 5 is a view showing one example of a method for manufacturing an organic EL device (first manufacturing method) of the present invention.
- first manufacturing method shown in FIG. 5
- an electrode substrate 51 having a structure in which a positive electrode layer (transparent electrode layer) 55 and an organic material layer 56 are laminated on the surface of a glass substrate (transparent substrate) 52 is formed.
- the roll-shaped electrode film 20 of FIG. 4 is prepared.
- the description of the metal layer and the insulating layer of the rolled electrode film 20 is omitted.
- the electrode substrate 51 is disposed on the surface of the substrate transport film 50.
- the electrode substrate 51 and the electrode film 21 are formed by a pair of heating rolls 57a and 57b in a state where the organic material layer 56 is disposed between the positive electrode layer 55 and the negative electrode layer 25 so as to be overlapped with each other. Pass through.
- the superposed electrode substrate 51 and electrode film 21 are pressurized and heated by the calorie heat loners 57a and 57b.
- the organic material layer 56 is softened by this heating, and the electrode substrate 51 and the electrode film 21 are bonded to each other, whereby the organic EL element 58 is manufactured.
- the organic EL element in which the invasion of moisture into the light-emitting element is suppressed continuously and efficiently without using a sealing glass plate as in the related art. It can be manufactured well.
- the plurality of organic EL elements 58 continuously manufactured in this manner are cut for each light-emitting element, and the periphery thereof is subjected to the above-described moisture-proof treatment.
- FIG. 6 is a view showing another example of the method for producing an organic EL device (first production method) of the present invention.
- an electrode substrate 61 having a structure in which a transparent electrode layer 65 and an organic material layer 66 are laminated on the surface of a transparent film (transparent substrate) 62 is wound in a wool shape.
- the rolled electrode substrate 60 having the above configuration and the rolled electrode film 20 of FIG. Be prepared.
- the description of the metal layer and the insulating layer of the roll-shaped electrode film 20 is omitted.
- a resin film having the above-mentioned low moisture permeable film is used as the transparent film 62 of the electrode substrate 61.
- the electrode substrate 61 and the electrode film 21 are overlapped with each other so that the organic material layer 66 is disposed between the positive electrode layer 65 and the negative electrode layer 25. , Passing between 57b.
- the overlapped electrode substrate 61 and electrode film 21 are pressurized and heated by the calorie heat loners 57a and 57b. By this heating, the organic material layer 66 is softened, and the electrode substrate 61 and the electrode film 21 are joined to each other, so that the organic EL element 68 is manufactured.
- the plurality of organic EL elements 68 continuously manufactured in this manner are cut for each light emitting element, and the periphery thereof is subjected to a moisture proof treatment.
- the second organic EL element has a configuration in which a transparent electrode layer, an organic material layer including an organic luminescent material layer, an opaque electrode layer, a resin film, and a metal layer are laminated in this order on the surface of a transparent substrate.
- the second organic EL element will be described by taking as an example a case where the transparent electrode layer is a positive electrode layer and the opaque electrode layer is a negative electrode layer.
- FIG. 7 is a cross-sectional view illustrating a configuration example of the second organic EL element.
- the second organic EL element 71 includes a transparent substrate 12, a positive electrode layer (transparent electrode layer) 15, an organic material layer including an organic luminescent material layer, a negative electrode layer (opaque electrode layer) 25, and a resin film 22. , And the metal layer 23 is laminated in this order.
- the organic material layer of the organic EL element 71 is composed of a hole transport layer 16 and an organic light emitting material layer 17.
- the metal layer 23 that suppresses the intrusion of moisture from the resin film 22 side into the light emitting element is formed on the surface of the resin film (the opposite side to the negative electrode layer 25 side). This is the same as the organic EL element in FIG.
- the metal layer 23 and the negative electrode layer 25 are electrically insulated by the resin film 22, so that it is not necessary to provide an insulating layer. .
- the organic EL element 71 in FIG. 7 has a resin film on the side from which the light generated in the organic light emitting material layer 17 of the light emitting element is not taken out, that is, outside the negative electrode layer 25 that does not need to transmit light.
- FIG. 8 is a cross-sectional view showing a configuration of a second electrode film used for manufacturing the organic EL device of FIG.
- the electrode finolem 81 has a configuration in which a negative electrode layer (opaque electrode layer) 25 is laminated on the surface of a resin film 22 and a metal layer 23 is laminated on the back surface.
- a negative electrode layer opaque electrode layer
- a metal layer 23 is laminated on the back surface.
- the organic EL element includes, for example, an electrode substrate having a structure in which a positive electrode layer (transparent electrode layer) and an organic material layer including an organic light emitting material layer are laminated on the surface of a transparent substrate, and the second electrode film described above. Are overlapped so that the organic material layer is disposed between the positive electrode layer and the negative electrode layer, and are bonded to each other.
- the second manufacturing method can be carried out in the same manner as in the first manufacturing method, except that the second electrode film is used.
- An organic EL element in which intrusion of water is suppressed can be manufactured continuously and efficiently.
- FIG. 10 is a cross-sectional view showing another configuration example of the second electrode film of the present invention.
- the electrode film 101 shown in FIG. 10 has a structure in which a hygroscopic material layer 29, an insulating layer 24, and a negative electrode layer 25 are laminated in this order on the surface of a resin film 22, and a metal layer 23 is laminated on the back surface.
- the configuration of the electrode film 101 is as shown in FIG. 8 except that the hygroscopic material layer 29 and the insulating layer 24 are laminated in this order between the resin film 22 and the opaque electrode layer 25 from the resin film 22 side. This is the same as the electrode film 81.
- the material and forming method of the hygroscopic material layer 29 of the electrode film of FIG. 10 are the same as those of the electrode film 91 of FIG.
- the organic EL device manufactured by using the electrode film 101 having the hygroscopic material layer 29 in FIG. 10 is similar to the electrode film 91 in FIG. 22 is prevented from entering the inside of the light emitting element from the side of the light emitting element 22. Further, moisture remaining in the light emitting element after the electrode substrate and the electrode film are bonded to each other is absorbed by the hygroscopic material layer 29. Deterioration of the layer 25 is more effectively suppressed, showing excellent durability. Efficient production of organic EL devices by using an electrode film with a hygroscopic material layer The ability to do S.
- the insulating layer 24 without attaching the hygroscopic material layer 29 of the electrode film 101 of FIG. 10 may be formed of an insulating hygroscopic material. it can.
- the positive electrode layer, the organic material layer, and the negative electrode layer of the organic EL device of the present invention can be formed in the same manner as in the case of a known organic EL device.
- the organic material layer of the organic EL element is composed of one or more layers including at least an organic light emitting material layer.
- a hole transport layer is provided on the surface of the organic light emitting material layer on the positive electrode layer side, or an electron transport layer is provided on the surface of the organic material layer on the negative electrode layer side. It is known to attach Hereinafter, examples of the layer structure of the organic EL device of the present invention will be described.
- Examples of the layer configuration of the first organic EL element are as follows.
- the positive electrode layer and the negative electrode layer of the organic EL element in addition to the above-described hole transport layer and electron transport layer, various other elements are provided in order to improve the light emission characteristics of the light emitting element.
- Layers for example, a hole injection layer or an electron injection layer provided on the surface of the positive electrode layer and the negative electrode layer on the organic material layer side
- Materials for forming each of these layers will be described later in detail.
- an organic material including an organic light emitting material layer may be provided on the surface of the positive electrode layer or may be provided on the surface of the negative electrode layer.
- the organic material layer on one side obtained by dividing the organic material layer along the layer plane is attached to the surface of the positive electrode layer so that the split surface is the top surface, and the organic material layer on the other side is provided.
- the layer may be provided on the surface of the negative electrode layer with the divided surface as the top surface.
- the organic material layer may be divided at the interface between the layers, or may be divided along the plane of the layer at a position in the middle of a predetermined layer in the thickness direction (for example, In the case of the above layer configuration (a), the organic light emitting material layer may be divided into two along the plane of the layer).
- the organic material layer provided on the surface of at least one of the positive electrode layer and the negative electrode layer is softened by heating.
- the heating temperature of the organic material layer is more preferably in the range of the glass transition point of the layer to be softened by heating ⁇ 25 ° C, and more preferably in the range of ⁇ 20 ° C. .
- the positive electrode layer is formed of a metal having a large work function (4 eV or more), a conductive compound, a mixture thereof, or the like.
- Representative examples of materials for forming the positive electrode layer include IT ⁇ (tin-doped indium oxide) and ⁇ (indium zinc oxide).
- the thickness of the positive electrode layer is generally 1 ⁇ m or less, and preferably 200 nm or less.
- the resistance of the positive electrode layer is preferably several hundreds ⁇ / sq. Or less.
- methods for forming the positive electrode layer include vacuum deposition, direct current (DC) sputtering, and radio frequency (RF) sputtering. Examples include the putter method, spin coating method, casting method, LB method, pyrosol method, and spray method.
- Examples of the material of the hole transport layer include a tetraarylbendicine compound, an aromatic amine, a pyrazoline derivative, and a triphenylene derivative.
- the thickness of the hole transport layer is preferably in the range of 2 to 200 nm.
- Examples of the method for forming the hole transport layer include a vacuum deposition method, a spin coating method, a casting method, an LB method, and a printing method.
- an electron-accepting receptor is preferably added to the hole transport layer.
- electron-accepting acceptors include metal halides, Lewis acids, and organic acids.
- a hole transport layer to which an electron-accepting receptor is added is known.
- the organic light-emitting material layer is formed of an organic light-emitting material, or a small amount of an organic material having a carrier transporting property (hole transporting property, electron transporting property, or amphoteric transporting property) (hereinafter referred to as a host material). Formed from a material to which the organic light emitting material described above is added. The emission color of the organic EL element can be easily set by selecting the organic light emitting material used for the organic light emitting material layer.
- a carrier transporting property hole transporting property, electron transporting property, or amphoteric transporting property
- organic light emitting material layer is formed from an organic light emitting material
- a material having excellent film forming properties and excellent film stability is used as the organic light emitting material.
- organic light-emitting materials include metal complexes represented by Alq (tris- (8-hydroxyquinolinato) aluminum), polyphene, and the like.
- a bilenvinylene (PPV) derivative, a polyfluorene derivative, or the like is used.
- a fluorescent dye or the like which is difficult to form a stable thin film by itself, can be used in addition to the organic light-emitting material because the amount of addition is small.
- fluorescent dyes include coumarin, DCM derivatives, quinacridone, perylene, and rubrene.
- the host material include Alq, TPD (triphenyldiamine) described above,
- Examples thereof include an oxadiazole derivative (PBD) having an electron transporting property, a polycarbonate-based copolymer, and polybutyral rubazole.
- PBD oxadiazole derivative
- a polycarbonate-based copolymer examples thereof include polybutyral rubazole.
- a small amount of an organic light-emitting material such as a fluorescent dye can be added in order to adjust the emission color.
- the thickness of the organic light emitting material layer is 200 nm or less in order to obtain a practical emission luminance. It is preferable.
- the organic light emitting material layer can be formed by the same method as the hole transport layer.
- Examples of the material for the electron transport layer include nitro-substituted fluorene derivatives, diphenylquinone derivatives, thiopyrandioxide derivatives, heterocyclic tetracarboxylic anhydrides such as naphthalenepyrylene, carbodiimide, and fluorenylidenemethane. Electron transporting materials such as derivatives, anthraquinodimethane and anthrone derivatives, oxadiazole derivatives, quinoline derivatives, quinoxaline derivatives, perylene derivatives, pyridine derivatives, pyrimidine derivatives, and stilbene derivatives. Further, an aluminum quinolinol complex such as tris (8-hydroxyquinoline) aluminum (Alq) can also be used.
- the thickness of the electron transport layer is preferably in the range of 5 to 300 nm.
- the electron transporting layer can be formed by a method similar to that of the hole transporting layer.
- the negative electrode layer is formed of a metal having a small work function (4 eV or less), an alloy composition, a conductive compound, or a mixture thereof.
- negative electrode layer materials include metals such as Al, Ti, In, Na, K, Mg, Li, Cs, Rb, and rare earth metals, Na—K alloys, Mg—Ag alloys, Mg—Cu alloys, And alloy compositions such as A1-Li alloys.
- the thickness of the negative electrode layer is generally 1 ⁇ m or less, and is more preferably 200 nm or less.
- the resistance of the negative electrode layer is preferably several hundreds ⁇ / sq. Or less.
- the negative electrode layer can be formed by the same method as the positive electrode layer.
- a hole injection layer may be provided on the surface of the positive electrode layer on the organic material layer side.
- an electron injection layer may be provided on the surface of the negative electrode layer on the organic material layer side.
- These injection layers have a function of injecting more charges (holes or electrons) from the electrode layer into the organic material layer. Further, the injection layer has a function of alleviating the roughness of the surface of the electrode layer and a function of reducing the drive voltage of the organic EL device.
- a typical example of the material of the hole injection layer is copper phthalocyanine (CuPc), and a typical example of the material of the electron injection layer is an alkali metal compound such as LiF (lithium fluoride).
- the hole injection layer is also called an anode buffer layer, and the electron injection layer is also called a cathode buffer layer.
- Example 1 While a roll-shaped PET film (film width: 25cm, thickness: 0.1mm) is run by rotating the take-up reel, a silver thin film (metal Layer), and a 20 nm thick titanium oxide thin film (insulating layer).
- the silver thin film was formed using silver as a sputtering target and argon gas as a sputtering gas.
- the titanium oxide thin film was formed using titanium as a sputtering target and a mixed gas of argon and oxygen as a sputtering gas.
- a metal mask was placed on the surface of the titanium oxide thin film.
- a 200 nm thick Mg-Ag alloy thin film was formed using a magnetron sputtering apparatus.
- the Mg—Ag alloy thin film was formed using an Mg—Ag alloy as a sputtering target and an argon gas as a sputtering gas.
- a striped Mg-Ag thin film (negative electrode layer) extending in the length direction of the film was formed.
- an electrode film was produced.
- a roll-shaped electrode film was produced by winding the produced electrode film into a roll in a vacuum while applying a tension of 1.37 X 10 6 N / m 2 using a take-up reel. did .
- the outermost periphery of the roll of the roll-shaped electrode film was configured such that a metal layer was laminated on the PET film surface. With this configuration, penetration of moisture from the outer peripheral surface of the roll-shaped electrode film is suppressed.
- the glass substrate on which the stripe-shaped ITO film (transparent positive electrode layer) was formed was washed.
- a coating solution for forming a hole transport layer (a PEDOT / PSS aqueous solution, manufactured by Bayer AG Leverlusen) was spin-coated on the surface of the IT ⁇ film at 3500 rpm for 30 seconds, and the vacuum was applied at 130 ° C. By drying in an oven for 1 hour, a hole transport layer having a thickness of 50 nm was formed.
- An organic light emitting material (Green K, manufactured by American Dye Source) was dissolved in xylene at a concentration of 1.5% by mass to prepare a coating solution for forming an organic light emitting material layer.
- the coating liquid for forming the organic light-emitting material layer is spin-coated on the surface of the hole transport layer, and dried to form an organic light-emitting layer having a thickness of 50 nm. material A layer was formed.
- the substrate (electrode substrate) on which the organic light emitting material layer was formed and the electrode film produced in Example 1 were placed between the positive electrode layer and the negative electrode layer by an organic material layer (a hole transport layer and a negative electrode layer).
- An organic light-emitting material layer) was disposed, and the stripes of these electrode layers were overlapped such that they crossed each other. Then, the laminated glass substrate and the electrode film were passed through between two heating rolls set at a temperature of 140 ° C. and pressed to soften the organic light emitting material layer and join them together. Thus, an organic electroluminescent device was manufactured.
- Example 2 In the same manner as in Example 1, a 30-nm-thick titanium oxide thin film was formed on the surface of a PET film having a thickness of 30 nm by a magnetron sputtering apparatus while a roll-shaped PET film was run by rotating the take-up reel. A 20 nm silver thin film (metal layer) and a 30 nm thick titanium oxide thin film (insulating layer) were formed.
- the running of the film was stopped, and a metal mask was arranged on the surface of the titanium oxide thin film.
- a metal mask was arranged on the surface of the titanium oxide thin film.
- an ITO thin film having a thickness of 160 nm was formed.
- the ITO thin film was formed using ITO as a sputtering target and a mixed gas of argon and oxygen as a sputtering gas. And by removing the metal mask
- the coating solution for forming a hole transport layer used in Example 2 was applied to the surface of the thin film by a microgravure coating method, and dried to form a hole transport layer having a thickness of 50 nm. A layer was formed.
- the coating solution for forming the organic light emitting material layer used in Example 2 was applied to the surface of the hole transport layer by a microgravure coating method, and dried to form an organic light emitting material layer having a thickness of 50 nm. Formed. Thus, an electrode substrate was manufactured.
- the produced electrode substrate was wound up under the same conditions as the electrode film of Example 1 to produce a roll-shaped electrode substrate.
- the outer periphery of the winding of the roll-shaped electrode substrate was configured such that a metal layer was laminated on the PET film surface. With this configuration, entry of moisture from the outer peripheral surface of the roll-shaped electrode substrate is suppressed.
- An organic material layer (a hole transport layer and an organic luminescent material layer) was disposed between the positive electrode layer and the negative electrode layer, and the prepared electrode substrate and the electrode film prepared in Example 1 were used. These The electrodes were overlapped so that the stripes of the electrode layers crossed each other. Then, the superposed electrode substrate and electrode film were passed through between two heating rolls set at a temperature of 140 ° C. and pressurized to soften the organic light emitting material layer and join them together. Thus, an organic electroluminescent device was manufactured.
- Example 2 In the same manner as in Example 1, while a roll-shaped PET film was run by rotating the take-up reel, a silver thin film (metal layer) having a thickness of 100 nm was formed on its surface by a magnetron sputtering apparatus. A strontium oxide (SrO) thin film (hygroscopic material layer) having a thickness of ⁇ m and a titanium oxide thin film (insulating layer) having a thickness of 20 nm were formed.
- SrO strontium oxide
- the strontium oxide thin film is formed using a sintered body of strontium peroxide (SrO) powder as a sputtering target and argon gas as a sputtering gas.
- SpO strontium peroxide
- Example 2 a 200-nm-thick striped Mg—Ag thin film (negative electrode layer) was formed on the surface of the titanium oxide thin film in the same manner as in Example 1 to produce an electrode film. Then, the produced electrode film was wound under the same conditions as in Example 1 to produce a roll-shaped electrode film.
- An organic electroluminescent device was manufactured by bonding an electrode substrate and an electrode film in the same manner as in Example 2 except that the manufactured roll-shaped electrode film was used.
- Example 5
- Example 6 An electrode substrate and an electrode film were attached to each other in the same manner as in Example 2 except that the produced roll-shaped electrode film was used, to produce an organic electroluminescent device.
- Example 6
- a silver thin film (metal layer) was formed on the surface of the PET film using a magnetron sputtering apparatus.
- the PET film on which the silver thin film has been formed is taken out of the magnetron sputtering apparatus, and a solution containing a thermosetting acrylic resin is applied to the surface of the silver thin film by a microgravure method, dried, and heat-cured to obtain a 500 nm thick film.
- a cured resin layer (insulating layer) was formed.
- a striped Mg—Ag thin film was formed on the surface of the insulating layer in the same manner as in Example 1 to produce an electrode film.
- An organic electroluminescent device was produced by bonding an electrode substrate and an electrode film to each other in the same manner as in Example 2 except that the obtained electrode film was used.
- FIG. 1 is a cross-sectional view showing a configuration example of a first organic electroluminescent device of the present invention.
- FIG. 2 is a cross-sectional view showing a configuration of a first electrode film of the present invention used for manufacturing the organic electroluminescent device of FIG. 1.
- FIG. 3 is a cross-sectional view showing another configuration example of the first electrode film of the present invention.
- FIG. 4 is a perspective view showing a configuration example of a first roll-shaped electrode film of the present invention.
- FIG. 5 is a view showing one example of a method (first method) for producing an organic electroluminescent device of the present invention.
- FIG. 6 is a view showing another example of the method (first method) for producing the organic electroluminescent device of the present invention.
- FIG. 7 is a sectional view showing a configuration example of a second organic electroluminescent device of the present invention.
- FIG. 8 is a cross-sectional view showing a configuration example of a second electrode film of the present invention used for manufacturing the organic electroluminescent device of FIG. 7.
- FIG. 9 is a cross-sectional view showing yet another configuration example of the first electrode film of the present invention.
- FIG. 10 is a cross-sectional view showing another configuration example of the second electrode film of the present invention.
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Abstract
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US10/562,201 US20060145603A1 (en) | 2003-06-25 | 2004-06-25 | Organic electroluminescence element, process for fabricating the same and electrode film |
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JP2004056606A JP4820536B2 (ja) | 2003-06-25 | 2004-03-01 | 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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JP4941297B2 (ja) * | 2005-04-06 | 2012-05-30 | コニカミノルタホールディングス株式会社 | 有機エレクトロルミネッセンス素子の製造方法 |
JP4894284B2 (ja) * | 2006-02-10 | 2012-03-14 | Jsr株式会社 | 有機電子デバイス用捕捉剤シート及び有機電子デバイス |
JP2007214015A (ja) * | 2006-02-10 | 2007-08-23 | Kokusai Kiban Zairyo Kenkyusho:Kk | 水及び酸素の捕捉剤、有機電子デバイス |
JP4876609B2 (ja) * | 2006-02-13 | 2012-02-15 | Jsr株式会社 | 有機電子デバイス用の捕捉剤及び有機電子デバイス |
JP2008004290A (ja) * | 2006-06-20 | 2008-01-10 | Nippon Hoso Kyokai <Nhk> | 有機el表示装置および有機el表示装置の製造方法 |
JP2009123690A (ja) * | 2007-10-22 | 2009-06-04 | Konica Minolta Holdings Inc | 塗布層形成後或いは対電極層形成後に乾燥剤フィルムを貼合して巻き取る有機エレクトロニクス素子とその製造方法 |
JP5235113B2 (ja) * | 2008-07-29 | 2013-07-10 | ブラザー工業株式会社 | 表示装置の製造方法 |
EP2178133B1 (en) | 2008-10-16 | 2019-09-18 | Semiconductor Energy Laboratory Co., Ltd. | Flexible Light-Emitting Device, Electronic Device, and Method for Manufacturing Flexible-Light Emitting Device |
JP5326098B2 (ja) * | 2009-02-05 | 2013-10-30 | シャープ株式会社 | 基板表面の封止装置と有機elパネルの製造方法 |
US8137148B2 (en) * | 2009-09-30 | 2012-03-20 | General Electric Company | Method of manufacturing monolithic parallel interconnect structure |
US9000442B2 (en) * | 2010-01-20 | 2015-04-07 | Semiconductor Energy Laboratory Co., Ltd. | Light-emitting device, flexible light-emitting device, electronic device, and method for manufacturing light-emitting device and flexible-light emitting device |
TWI589042B (zh) * | 2010-01-20 | 2017-06-21 | 半導體能源研究所股份有限公司 | 發光裝置,撓性發光裝置,電子裝置,照明設備,以及發光裝置和撓性發光裝置的製造方法 |
US8344389B2 (en) * | 2010-01-29 | 2013-01-01 | General Electric Company | Optoelectronic device array |
KR101663840B1 (ko) * | 2010-03-01 | 2016-10-07 | 가부시키가이샤 제이올레드 | 유기 el 장치 및 그 제조 방법 |
JP2013008515A (ja) * | 2011-06-23 | 2013-01-10 | Nitto Denko Corp | トップエミッション型有機エレクトロルミネッセンス素子およびその製法 |
JP5857765B2 (ja) * | 2012-02-01 | 2016-02-10 | コニカミノルタ株式会社 | 有機エレクトロルミネッセンス素子 |
KR102079188B1 (ko) | 2012-05-09 | 2020-02-19 | 가부시키가이샤 한도오따이 에네루기 켄큐쇼 | 발광 장치 및 전자 기기 |
TW201429016A (zh) * | 2013-01-09 | 2014-07-16 | Ultimate Image Corp | 應用於照明裝置之有機發光二極體元件 |
JP5961148B2 (ja) * | 2013-08-02 | 2016-08-02 | 富士フイルム株式会社 | 発光装置の製造方法 |
WO2015136580A1 (ja) * | 2014-03-12 | 2015-09-17 | パナソニック株式会社 | 有機el装置、有機el装置の設計方法及び有機el装置の製造方法 |
CN104538420A (zh) * | 2014-12-12 | 2015-04-22 | 深圳市华星光电技术有限公司 | 柔性oled显示装置及其制造方法 |
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JP2005038816A (ja) | 2005-02-10 |
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JP4820536B2 (ja) | 2011-11-24 |
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