WO2015076060A1 - Élément électroluminescent organique, procédé de fabrication d'élément électroluminescent organique, appareil d'éclairage et élément d'affichage électroluminescent organique - Google Patents

Élément électroluminescent organique, procédé de fabrication d'élément électroluminescent organique, appareil d'éclairage et élément d'affichage électroluminescent organique Download PDF

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WO2015076060A1
WO2015076060A1 PCT/JP2014/078346 JP2014078346W WO2015076060A1 WO 2015076060 A1 WO2015076060 A1 WO 2015076060A1 JP 2014078346 W JP2014078346 W JP 2014078346W WO 2015076060 A1 WO2015076060 A1 WO 2015076060A1
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light emitting
emitting element
substrate
layer
light
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PCT/JP2014/078346
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English (en)
Japanese (ja)
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秀謙 尾方
礼隆 遠藤
麻絵 伊藤
勝一 香村
晶子 岩田
大江　昌人
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シャープ株式会社
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    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/90—Assemblies of multiple devices comprising at least one organic light-emitting element
    • 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
    • H10K50/81—Anodes
    • H10K50/814—Anodes combined with auxiliary electrodes, e.g. ITO layer combined with metal lines
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/30—Devices specially adapted for multicolour light emission
    • H10K59/38—Devices specially adapted for multicolour light emission comprising colour filters or colour changing media [CCM]
    • 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
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/0001—Technical content checked by a classifier
    • H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K2102/00—Constructional details relating to the organic devices covered by this subclass
    • H10K2102/301—Details of OLEDs
    • H10K2102/311—Flexible OLED
    • 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
    • H10K50/85—Arrangements for extracting light from the devices
    • H10K50/854—Arrangements for extracting light from the devices comprising scattering means
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays

Definitions

  • the present invention relates to an organic light emitting device, a method for manufacturing the organic light emitting device, a lighting device, and an organic light emitting display device.
  • organic electronic devices are made of conventional inorganic materials such as being flexible and capable of being built on a large-area substrate, low-temperature processes, and low-cost manufacturing. Utilizing advantages that are difficult to realize with electronic devices, it is expected to be put into practical use, for example, for flexible displays.
  • organic electronic devices include organic electroluminescence (hereinafter referred to as “organic EL”) devices, organic solar cells, and organic transistors (organic FETs).
  • the organic EL device includes an organic EL element having a configuration in which an organic layer containing a light emitting material is sandwiched between a pair of electrodes. Since the organic EL element has characteristics such as low voltage driving, high luminance, and self-luminescence, the organic EL element can be reduced in thickness and weight.
  • the organic EL device can be applied to a light source such as an electrophotographic copying machine and a printer, and a lighting device.
  • an organic EL lighting device has many merits such as surface light emission, which can be thinned, and easy dimming. Further, since fluorescent lamps use mercury, there is a problem of environmental load, but such problems do not occur according to the organic EL lighting device.
  • a number of individual OLED devices are combined on a single substrate, or a combination of substrates having a plurality of individual OLED devices on each substrate.
  • Groups of OLED devices are typically coupled in series and / or in parallel to yield an array of OLED devices that can be used, for example, in display, signage or lighting applications. In these large area applications, it is desirable to produce a large light emitting area in the array while minimizing non-light emitting areas.
  • Patent Document 1 discloses a structure in which an organic light emitting region on a substrate is divided into small parts and each organic light emitting region is electrically connected in series in order to manufacture a large area illumination with a high yield. A method for manufacturing a simple structure is disclosed.
  • the organic light emitting region divided into small parts described in Patent Document 1 is often directly formed on the substrate by vapor deposition or coating. For this reason, a large-sized vacuum vapor deposition apparatus capable of substrate processing or a coating apparatus in an inert gas atmosphere is required, and the apparatus cost is high.
  • a plurality of light emitting layers are stacked in order to obtain light emission of a plurality of types of light emission colors, but there is a possibility that the film thickness distribution of each layer may be different, which causes uneven brightness and uneven colors.
  • Some aspects of the present invention have been made in view of the above-described problems of the prior art, and can be manufactured at low cost, without uneven color, a method for manufacturing an organic light-emitting element, a lighting device, Another object of the present invention is to provide an organic light emitting display element.
  • An organic light-emitting device includes a light-emitting device unit including a light-transmitting first electrode, an organic light-emitting layer, and a second electrode on a first substrate made of a transparent base material, and the light-emitting device.
  • a plurality of transparent substrates having a plurality of portions, and a plurality of portions formed on the second substrate at intervals from each other and electrically connected to the first electrodes in the plurality of light emitting element portions.
  • An auxiliary electrode a terminal electrode formed on the second substrate and electrically connected to the second electrode in the plurality of light emitting element portions, and either the first substrate or the second substrate And a color conversion layer that color-converts light from the light emitting element portion and emits light.
  • the auxiliary electrode and the first substrate of the light emitting device portion may partially overlap each other.
  • the light emitting device portion may be bonded to the second substrate through an adhesive layer provided between the adjacent auxiliary electrodes.
  • the color conversion layer may be formed on one surface of the first substrate so as to cover the organic light emitting layer.
  • the color conversion layer may be formed on one surface of the second substrate so as to cover the plurality of light emitting device portions.
  • a transparent gas barrier layer for sealing the color conversion layer may be formed on the second substrate.
  • a method of manufacturing an organic light emitting device comprising: forming a color conversion layer on one of a transparent base material having a plurality of light emitting device portion forming regions and a second substrate; Forming a plurality of auxiliary electrodes, and forming a mother substrate by forming a light-transmitting first electrode, organic light-emitting layer, and second electrode in each of the plurality of light-emitting element portion forming regions. And separating the mother base material into the light emitting element portion forming regions, so that the first electrode, the organic light emitting layer, and the second electrode are formed on the first substrate composed of the transparent base material.
  • the manufacturing method of the organic light emitting element which has the process of producing several light emitting element part provided with, and the process of arrange
  • the auxiliary electrode and the first substrate of the light emitting device portion are partially overlapped. It is good also as a manufacturing method to make it.
  • a manufacturing method including a step of forming a color conversion layer on one surface of the transparent substrate may be employed.
  • the method may include a step of forming a color conversion layer on one surface of the second substrate before forming the plurality of auxiliary electrodes.
  • the method may include a step of forming a transparent gas barrier layer for sealing the color conversion layer on the one surface of the second substrate.
  • a lighting device includes a light-emitting element unit including a light-transmitting first electrode, an organic light-emitting layer, and a second electrode on a first substrate made of a transparent base material, and the light-emitting element unit. Are arranged on the second substrate at a distance from each other and electrically connected to the first electrode in the plurality of light emitting element portions.
  • an organic light-emitting element including a color conversion layer that color-converts light from the light-emitting element portion and emits light.
  • An organic light-emitting display element includes a light-emitting element unit including a light-transmitting first electrode, an organic light-emitting layer, and a second electrode on a first substrate made of a transparent base material, and the light emission.
  • a plurality of first wirings and an insulating layer electrically insulated from the first wirings are sandwiched between the first wirings and spaced apart from each other so as to form a grid with the first wirings.
  • a switching element may be provided in the first wiring and the second wiring, and energization to the first wiring and the second wiring may be controlled.
  • an organic light-emitting element having no color unevenness it is possible to provide an organic light-emitting element having no color unevenness, a method for manufacturing the organic light-emitting element, a lighting device, and an organic light-emitting display element that can be manufactured at low cost.
  • the schematic diagram showing a part of II section in FIG. 1 is a first partial cross-sectional view showing a schematic configuration of a color conversion filter layer.
  • the 2nd partial sectional view showing the schematic structure of a color conversion filter layer.
  • the top view which shows the one surface side of the transparent support substrate provided with the terminal electrode and the auxiliary electrode.
  • Sectional drawing which shows schematic structure of a light emitting element part.
  • the perspective view which shows the connection state of the anode of a light emitting element part, and an auxiliary electrode, and the connection state of the cathode of a light emitting element part, and a terminal electrode.
  • the left side in the drawing is a first perspective view showing the manufacturing process of the color conversion filter substrate, and the right side in the drawing is a first cross-sectional view showing the manufacturing process of the color conversion filter substrate.
  • the left side in the drawing is a second perspective view showing the manufacturing process of the color conversion filter substrate, and the right side in the drawing is a second cross-sectional view showing the manufacturing process of the color conversion filter substrate.
  • the left side in the drawing is a third perspective view showing the manufacturing process of the color conversion filter substrate, and the right side in the drawing is a third sectional view showing the manufacturing process of the color conversion filter substrate.
  • 1 is a perspective view showing an organic EL base (mother base material) 15 produced by a film forming apparatus 11.
  • FIG. The perspective view which shows the organic electroluminescent base (mother base material) produced with the film-forming apparatus.
  • the figure which shows the structure of the film-forming apparatus 11 based on the roll-to-roll method in detail.
  • 1st explanatory drawing which shows the manufacturing method of the light emitting element part using the roll-to-roll method.
  • 2nd explanatory drawing which shows the manufacturing method of the light emitting element part using the roll-to-roll method.
  • FIG. 9 is a second diagram for explaining a process of providing a plurality of light emitting element portions on the color conversion filter substrate 12 that has undergone an inspection process.
  • FIG. 9 is a third diagram for explaining a process of providing a plurality of light emitting element portions on the color conversion filter substrate 12 that has undergone an inspection process.
  • positioning process Sectional drawing for demonstrating the connection process between an anode and an auxiliary electrode.
  • FIG. 6 is a plan view illustrating a display portion of a dot matrix display device which is one embodiment of the present invention.
  • FIG. 10 is a plan view illustrating a display portion of a segment display device which is one embodiment of the present invention.
  • 1 is a schematic view of an electronic bulletin board according to one embodiment of the present invention.
  • 1 is a schematic diagram of a lighting device which is one embodiment of the present invention.
  • FIG. 1 is a schematic view showing an organic EL device according to the first embodiment of the present invention.
  • the organic EL device (organic light emitting element) 1 of the present embodiment has a rectangular plate shape in plan view, and a light emitting region 1a that emits white light is formed on one side. .
  • a terminal electrode 5 for connecting an external device is provided on one end side in the longitudinal direction of the organic EL device 1.
  • FIG. 2 is a schematic diagram showing a part of the II cross section in FIG.
  • the organic EL device 1 includes a color conversion filter substrate 12, a plurality of light emitting element units 3 provided on the color conversion filter substrate 12, and a seal that seals the plurality of light emitting element units 3.
  • the member 4 is mainly configured.
  • the color conversion filter substrate 12 includes a transparent support substrate (second substrate) 2.
  • the transparent support substrate 2 is provided with a color conversion filter layer (color conversion layer) 9, a gas barrier layer 8, an auxiliary electrode 6, and a terminal electrode 5 (FIG. 1) on one surface 2a.
  • the color conversion filter layer 9 is formed including a region corresponding to the light emitting region 1a on the one surface 2a.
  • the gas barrier layer 8 is formed so as to cover the color conversion filter layer 9 and seals the periphery of the color conversion filter layer 9.
  • the auxiliary electrode 6 and the terminal electrode 5 are formed on the surface of the gas barrier layer 8.
  • the transparent support substrate 2 is formed using a material having excellent visible light transmittance and almost no moisture permeability.
  • the base material (transparent base material) of the transparent support substrate 2 includes a rigid resin substrate formed of a glass substrate or a resin.
  • the material for forming the resin substrate include polyolefin, acrylic resin (including polymethyl methacrylate), polyester resin (including polyethylene terephthalate), polycarbonate resin, and polyimide resin.
  • a flexible film formed of polyolefin, acrylic resin (including polymethyl methacrylate), polyester resin (including polyethylene terephthalate), polycarbonate resin, polyimide resin, or the like may be used.
  • borosilicate glass or blue plate glass is particularly preferable.
  • the transparent support substrate 2 is, for example, in the form of a film having a width of about 1 cm, a length of about 15 cm, and a thickness of about 0.2 mm, and has a rectangular shape in plan view.
  • the shape of the transparent support substrate 2 is not limited to a rectangle, and may be another shape.
  • the form of the transparent support substrate 2 can be freely designed according to the design of the organic EL lighting device.
  • the color conversion filter layer 9 has a function of absorbing incident light and emitting light in different wavelength ranges. Specifically, the color conversion filter layer 9 absorbs a part of incident light (light emitted from the plurality of light emitting element portions 3 mounted on the transparent support substrate 2), performs wavelength distribution conversion, and performs incident light conversion. This is a layer for emitting light including non-absorbed components and converted light (light having a wavelength distribution different from incident light).
  • the color conversion filter layer 9 is a layer made of at least one kind or a plurality of kinds of color conversion dyes.
  • the color conversion filter layer 9 may be formed over the entire surface 2a of the transparent support substrate 2 or selectively formed in a part of the transparent support substrate 2 (only the region corresponding to the light emitting region 1a). May be. For example, one or more types of color conversion filter layers 9 may be selectively formed at specific positions.
  • the color conversion filter layer 9 converts blue to blue-green light emitted from the light emitting element unit 3 into white light.
  • the white light in one embodiment of the present invention includes not only light that uniformly includes a wavelength component in the visible region (400 to 700 nm) but also light that does not include a wavelength component uniformly but appears white to the naked eye.
  • the color conversion dye at least one fluorescent dye that emits fluorescence in the red region may be used, and may be combined with one or more fluorescent dyes that emit fluorescence in the green region. That is, when an organic light-emitting element that emits light in the blue or blue-green region is used as the light source as the light-emitting element unit 3, when light from the light-emitting element unit 3 is passed through a simple red filter to obtain light in the red region, Originally, the light in the red region has a small amount of light, resulting in extremely dark output light. Therefore, by converting the light in the blue or blue-green region from the light emitting element part into the light in the red region by the fluorescent dye of the color conversion filter layer, the light in the red region having sufficient intensity can be output.
  • the light in the green region may be output by converting the light from the light emitting element portion into the light in the green region by another organic fluorescent dye, similarly to the light in the red region.
  • the light emission of the light emitting element part 3 sufficiently includes light in the green region, the light from the light emitting element part 3 may be simply output through the green filter.
  • fluorescent dyes that absorb light from the blue region to the blue-green region and emit fluorescence in the red region
  • fluorescent dyes for example, rhodamine B, rhodamine 6G, rhodamine 3B, rhodamine 101, rhodamine 110, sulforhodamine, basic violet 11, basic red 2, and other rhodamine dyes, cyanine dyes, 1-ethyl-2- [4- (p-dimethylaminophenyl) -1,3-butadienyl] -pyridinium perchlorate ( Examples thereof include pyridine dyes such as pyridine 1) or oxazine dyes. Furthermore, various dyes (direct dyes, acid dyes, basic dyes, disperse dyes, etc.) can be used if they are fluorescent.
  • a fluorescent dye that absorbs light in the blue region or blue-green region and emits fluorescence in the green region for example, 3- (2′-benzothiazolyl) -7-diethylaminocoumarin (Coumarin 6), 3- (2′-benzimidazolyl) -7-N, N-diethylaminocoumarin (coumarin 7), 3- (2′-N-methylbenzimidazolyl) -7-N, N-diethylaminocoumarin (coumarin 30) ), 2,3,5,6-1H, 4H-tetrahydro-8-trifluoromethylquinolidine (9,9a, 1-gh) coumarin (coumarin 153), or a coumarin dye.
  • Basic yellow 51, naphthalimide dyes such as solvent yellow 11 and solvent yellow 116 It is below.
  • various dyes direct dyes, acid dyes, basic dyes, disperse dyes, etc.
  • various dyes can be used if they are fluorescent.
  • the organic fluorescent dye used in the present embodiment includes polymethacrylate, polyvinyl chloride, vinyl chloride-vinyl acetate copolymer resin, alkyd resin, aromatic sulfonamide resin, urea resin, melamine resin, benzoguanamine resin, and these.
  • An organic fluorescent pigment may be obtained by kneading into a resin mixture in advance to obtain a pigment.
  • these organic fluorescent dyes and organic fluorescent pigments (hereinafter, organic fluorescent dyes and organic fluorescent pigments are collectively referred to as organic fluorescent dyes) may be used alone or in order to adjust the hue of fluorescence. You may use combining more than a seed.
  • the organic fluorescent dye used in this embodiment is contained in the color conversion filter layer 9 in an amount of 0.01 to 5% by weight, more preferably 0.1 to 2% by weight, based on the weight of the color conversion filter layer 9. . If the content of the organic fluorescent dye is less than 0.01% by weight with respect to the weight of the color conversion filter layer 9, sufficient wavelength conversion cannot be performed. Further, if the content of the organic fluorescent dye exceeds 5% by weight with respect to the weight of the color conversion filter layer 9, the color conversion efficiency is lowered due to the effect of concentration quenching or the like.
  • the matrix resin used in the color conversion filter layer 9 of the present embodiment generates radical species or ionic species by light and / or heat treatment of a photocurable or photothermal combination type curable resin (resist). Polymerized or cross-linked and insoluble and infusible.
  • the material has a photocurable or photothermal combination type curable resin and is soluble in an organic solvent or an alkaline solution in an unexposed state.
  • the photocurable or photothermal combination type curable resin comprises (1) a composition comprising an acrylic polyfunctional monomer and oligomer having a plurality of acryloyl groups and methacryloyl groups, and photo or thermal polymerization initiator, (2 ) A composition comprising a polyvinylcinnamic acid ester and a sensitizer, (3) a composition comprising a chain or cyclic olefin and bisazide, and (4) a composition comprising an epoxy group-containing monomer and an acid generator. including.
  • the composition comprising the acrylic polyfunctional monomer and oligomer (1) and photo or thermal polymerization initiator is capable of high-definition patterning and has high reliability such as solvent resistance and heat resistance. Is preferable.
  • the matrix resin is formed by applying light and / or heat to the photocurable or photothermal combination type curable resin.
  • the photopolymerization initiator, sensitizer, and acid generator that can be used in the present embodiment are preferably those that initiate polymerization by light having a wavelength that is not absorbed by the fluorescent conversion dye contained therein.
  • a photopolymerization initiator and a thermal polymerization initiator are added. It is also possible not to add.
  • a matrix resin is formed by applying a solution or dispersion containing a photocurable resin or a solution or dispersion containing a photothermal combination type curable resin and an organic fluorescent dye on a support substrate to form a resin layer. Then, the resin layer in a desired region is exposed to be polymerized to be formed.
  • patterning is performed after exposing the desired region to insolubilize the photocurable resin or photothermal combination curable resin.
  • the patterning can be performed by a conventional method such as removal using an organic solvent or an alkali solution in which the resin in the unexposed portion is dissolved or dispersed.
  • 3A and 3B are first and second partial cross-sectional views showing a schematic configuration of the color conversion filter layer.
  • the color conversion filter layer 9 has a plurality of green conversion dye layers 9G and red conversion dye layers 9R, and the green conversion dye layer 9G and the red color conversion dye layer 9R are alternately present in the arrangement direction.
  • the green conversion dye layer 9G and the red conversion dye layer 9R forming a pair and the other green conversion dye layer 9G and the red conversion dye layer 9R adjacent to each other are disposed at a predetermined interval. .
  • the width W in the short direction of the green conversion dye layer 9G and the red conversion dye layer 9R is 0.5 mm.
  • the color conversion filter layer 9 includes a plurality of red conversion dye layers 9R. Further, as shown in FIG. 3B, the color conversion filter layer 9 includes a red conversion dye and a blue conversion dye, and the organic light emitting layer 33 (FIG. 2) emits a part of blue or blue green light. Good. In addition, when the light emission of the organic light emitting layer 33 (FIG. 2) is blue-green, the color conversion filter layer 9 contains a red conversion dye, and a part of blue green that is the light emission of the organic light emitting layer 33 (FIG. 2). It is good also as a structure which permeate
  • the gas barrier layer 8 is preferably composed of a laminate of an organic planarizing layer 8A and an inorganic gas barrier layer 8B.
  • a preferable material for the organic planarizing layer 8A has high transparency in the visible region (transmittance of 50% or more in the wavelength range of 400 to 700 nm), Tg of 100 ° C. or more, and surface hardness of 2H or more pencil hardness. It is a material that can smoothly form a coating film on the color conversion filter layer 9 and does not deteriorate the function of the color conversion filter layer.
  • Examples of such materials include imide-modified silicone resins (see JP-A-5-134112, JP-A-7-218717, JP-A-7-306311, etc.), acrylics, polyimides, silicone resins, and the like. Including a material in which an inorganic metal compound (TiO, Al 2 O 3 , SiO 2 or the like) is dispersed (see JP-A-5-119306, JP-A-7-104114, etc.).
  • an inorganic metal compound TiO, Al 2 O 3 , SiO 2 or the like
  • Examples of the ultraviolet curable resin that can be used in the organic planarizing layer include epoxy-modified acrylate resins (see JP-A-7-48424), resins having reactive vinyl groups of acrylate monomers / oligomers / polymers, resist resins (special JP-A-6-300910, JP-A-7-128519, JP-A-8-273394, JP-A-9-330793, etc.), fluororesin (JP-A-5-36475, JP-A-9-330793) Photocurable resin and / or thermosetting resin.
  • inorganic compounds formed by a sol-gel method described in Monthly Display 1997, Vol. 3, No. 7, JP-A-8-27934, etc.
  • the inorganic gas barrier layer 8B has an electrical insulating property, a barrier property against gases and organic solvents, high transparency in the visible region (transmittance of 50% or more in the wavelength range of 400 to 700 nm), and an inorganic gas barrier. It is desirable to use a material having a hardness (preferably pencil hardness of 2H or more) that can withstand the formation of the terminal electrode 5 and the auxiliary electrode 6 on the layer 8B.
  • a material having a hardness preferably pencil hardness of 2H or more
  • inorganic oxides such as SiOx, AlOx, TiOx, and TaOx, inorganic nitrides such as SiNx and SiC: N, or inorganic substances such as SiNxOy and diamond-like carbon (DLC) can be used.
  • a formation method of the inorganic gas barrier layer 8B It can form by common methods, such as a sputtering method, CVD method, a vacuum evaporation method, a dip method.
  • the particle size of the light-scattering particles is preferably about 100 nm to 500 nm.
  • particles (inorganic fine particles) made of an inorganic material are used as the light scattering particles, for example, silica beads (refractive index: 1.44), alumina beads (refractive index: 1.63), titanium oxide beads (Refractive index anatase type: 2.50, rutile type 2.70), zirconia bead (refractive index: 2.05), zinc oxide bead (refractive index: 2.00), barium titanate (BaTiO 3 ) (refractive Rate: 2.4).
  • silica beads reffractive index: 1.44
  • alumina beads reffractive index: 1.63
  • titanium oxide beads Refractive index anatase type: 2.50, rutile type 2.70
  • zirconia bead reffractive index: 2.05
  • zinc oxide bead reffractive index: 2.00
  • barium titanate BaTiO 3
  • particles (organic fine particles) made of an organic material are used as the light scattering particles, for example, polymethyl methacrylate beads (refractive index: 1.49), acrylic beads (refractive index: 1.50), acrylic -Styrene copolymer beads (refractive index: 1.54), melamine beads (refractive index: 1.57), high refractive index melamine beads (refractive index: 1.65), polycarbonate beads (refractive index: 1.57) Styrene beads (refractive index: 1.60) crosslinked polystyrene beads (refractive index: 1.61), polyvinyl chloride beads (refractive index: 1.60), benzoguanamine-melamine formaldehyde beads (refractive index: 1.68), Examples thereof include silicone beads (refractive index: 1.50).
  • FIG. 4 is a plan view showing one side of a transparent support substrate provided with terminal electrodes and auxiliary electrodes. As shown in FIG. 4, the terminal electrode 5 and the auxiliary electrode 6 are formed on the surface 8a of the gas barrier layer 8 formed on the one surface 2a of the transparent support substrate 2, respectively. The terminal electrode 5 is formed along one side 2 c in the longitudinal direction of the transparent support substrate 2.
  • the auxiliary electrode 6 has a plurality of extension portions 6a, 6a,... And a common portion 6b.
  • the common part 6 b is formed along the other side 2 d in the longitudinal direction of the transparent support substrate 2.
  • the plurality of extending portions 6a, 6a,... Extend in parallel to each other at a predetermined interval L1 in the arrangement direction (X direction), and each base end (the side opposite to the end portion on the terminal electrode 5 side). ) Side is connected to the common part 6b.
  • the plurality of extension portions 6 a, 6 a,... Extend linearly from the common portion 6 b toward the terminal electrode 5, but are separated from the terminal electrode 5 so as not to be electrically connected to the terminal electrode 5. Is provided.
  • the terminal electrode 5 is a terminal for external connection.
  • the terminal electrode 5 and the auxiliary electrode 6 are formed in a thin film shape using a material having a low electric resistance value, such as gold, silver, nickel, aluminum, and the like.
  • FIG. 5 is a cross-sectional view showing a schematic configuration of the light emitting element portion.
  • the light emitting element portion 3 of the present embodiment is obtained by dividing an organic EL base described later produced by a roll-to-roll method, and is produced independently of the color conversion filter substrate 12. is there.
  • the light emitting element unit 3 includes a band-shaped transparent base film (first substrate) 31, a light-transmitting band-shaped anode (first electrode) 32 a, and a band-shaped organic light-emitting layer (light-emitting layer). ) 33 and a strip-like cathode (second electrode) 32b.
  • the transparent base film 31 is a flexible substrate having flexibility.
  • a resin sheet such as a styrene resin, an acrylic resin, or a polyethylene terephthalate resin can be used for the transparent base film 31.
  • a material excellent in barrier properties against oxygen and water is preferable, and a single layer sheet made of a single resin or a multilayer sheet made of a plurality of resins may be used.
  • the transparent base film 31 is preferably a flexible substrate having flexibility, but may be a transparent substrate having elasticity such as glass.
  • the anode 32a and the cathode 32b can be formed using a conventional electrode material.
  • a transparent electrode can be formed using ITO, IDIXO, IZO, GZO, SnO 2 or the like.
  • a microresonator structure is constituted by the anode 32a and the cathode 32b, it is preferable to use a translucent electrode as the anode 32a.
  • the anode 32a a combination of a metal translucent electrode and a transparent electrode material can be used.
  • a material for the semitransparent electrode silver is preferable from the viewpoint of reflectance and transmittance.
  • the film thickness of the translucent electrode is preferably 5 to 30 nm. When the film thickness of the translucent electrode is less than 5 nm, the light cannot be sufficiently reflected, and the interference effect cannot be obtained sufficiently. Further, when the film thickness of the semi-transparent electrode exceeds 30 nm, the light transmittance is drastically lowered, and thus the luminance and light emission efficiency of the light emitting element portion 3 may be lowered.
  • the organic light emitting layer 33 is disposed between the anode 32a and the cathode 32b, and emits light when a voltage is applied.
  • the organic light emitting layer 33 includes, for example, a hole injection layer 34, a hole transport layer 35, an electron blocking layer 36, a light emitting layer 37, an electron transport layer 38, and an electron injection layer 39 in order from the transparent base film 31 side. (Hole injection layer / hole transport layer / electron blocking layer / light emitting layer / electron transport layer / electron injection layer).
  • the light emitting layer 37 of the present embodiment has a single layer structure that emits blue to blue-green light.
  • the cathode 32b is formed by laminating a metal having a low work function such as Ca / Al, Ce / Al, Cs / Al, Ba / Al and a stable metal in order to efficiently inject electrons into the organic light emitting layer 33, for example. Is preferably formed.
  • the cathode 32b may be formed of an alloy containing a metal having a low work function, such as a Ca: Al alloy, Mg: Ag alloy, or Li: Al alloy, or LiF / Al, LiF / Ca / Al, BaF2 or the like.
  • a thin film insulating layer such as / Ba / Al or LiF / Al / Ag may be formed in combination with a metal electrode.
  • the width W1 in the short direction of the cathode 32b in the present embodiment is substantially equal to the interval L1 between the adjacent extensions 6a, 6a in the auxiliary electrode 6 described above.
  • the light emission of the organic light emitting layer 33 can be condensed in the front direction (light extraction direction) due to the interference effect between the anode 32a and the cathode 32b.
  • the directivity can be given to the light emission of the organic light emitting layer 33, the light emission loss escaping to the periphery can be reduced, and the light emission efficiency can be increased.
  • the light emission energy generated in the organic light emitting layer 33 can be more efficiently propagated to the color conversion filter layer 9 side, and the front luminance of the light emitting element portion 3 can be increased.
  • the emission spectrum of the organic light emitting layer 33 can be adjusted, and the desired emission peak wavelength and half width can be adjusted. Thereby, the emission spectrum of the organic light emitting layer 33 can be controlled to a spectrum that can effectively excite the organic fluorescent dye in the color conversion filter layer 9.
  • a dry process such as an evaporation method, an EB method, an MBE method, or a sputtering method can be used, or a wet process such as a spin coating method, a printing method, or an ink jet method can be used. it can.
  • the hole injection layer 34 is provided in order to efficiently receive holes from the anode 32a and deliver them to the hole transport layer 35 efficiently.
  • the HOMO level of the material used for the hole injection layer 34 is preferably lower than the HOMO level used for the hole transport layer 35 and higher than the work function of the anode 32a.
  • the hole injection layer 34 may be a single layer or a multilayer.
  • polycarbonate or polyester can be used as the adhesive resin.
  • Any solvent can be used as long as it can dissolve or disperse the material.
  • pure water, methanol, ethanol, THF, chloroform, xylene, trimethylbenzene, or the like can be used as the solvent.
  • the material of the hole injection layer 34 those generally used for organic EL elements and organic photoconductors can be used.
  • inorganic p-type semiconductor materials porphyrin compounds, N, N′-bis- (3-methylphenyl) -N, N′-bis- (phenyl) -benzidine (TPD), N, N′-di (naphthalene) -1-yl) -N, N′-diphenyl-benzidine (NPD) and other aromatic tertiary amine compounds, hydrazone compounds, quinacridone compounds, styrylamine compounds and other low molecular materials, polyaniline (PANI), 3, 4 -Polymer materials such as polyethylene dioxythiophene / polystyrene sulfonate (PEDT / PSS), poly [triphenylamine derivative] (Poly-TPD), polyvinyl carbazole (PVCz), poly (p-phenylene vinylene) precursor ( Prepolymer materials such as
  • the hole transport layer 35 is provided in order to efficiently receive holes from the hole injection layer 34 and deliver them efficiently to the light emitting layer 37.
  • the HOMO level of the material used for the hole transport layer 35 is preferably higher than the HOMO level of the hole injection layer 34 and lower than the HOMO level of the light emitting layer 37. This is because holes can be injected and transported to the light emitting layer 37 more efficiently, and the effect of reducing the voltage required for light emission and the effect of improving the light emission efficiency can be obtained.
  • the LUMO level of the hole transport layer 35 is preferably lower than the LUMO level of the light emitting layer 37 so that the leakage of electrons from the light emitting layer 37 can be suppressed. If it does so, the luminous efficiency in the light emitting layer 37 can be raised.
  • the band gap of the hole transport layer 35 is preferably larger than the band gap of the light emitting layer 37. Then, excitons can be effectively confined in the light emitting layer 37.
  • the hole transport layer 35 may be a single layer or a multilayer, and can be formed in the same manner as the hole injection layer 34 using a dry process or a wet process.
  • the electron blocking layer 36 can be formed using the same material as the hole injection layer 34.
  • the absolute value of the LUMO level of the material is preferably smaller than the absolute value of the LUMO level of the material of the hole injection layer 34 included in the light emitting layer 37 in contact with the electron blocking layer 36, that is, the red light emitting layer 37a. This is because electrons can be more effectively confined in the light emitting layer 37.
  • the electron blocking layer 36 may be a single layer or a multilayer, and can be formed in the same manner as the hole injection layer 34 using a dry process or a wet process.
  • the light emitting layer 37 may be composed only of the organic light emitting material exemplified below, or may be composed of a combination of a light emitting dopant and a host material, and optionally includes a hole transport material, an electron transport material, and an additive. An agent (donor, acceptor, etc.) may be included. Moreover, the structure by which these each material was disperse
  • the organic light emitting material a known light emitting material for an organic EL element can be used. Such light-emitting materials are classified into low-molecular light-emitting materials, polymer light-emitting materials, and the like. Specific examples of these compounds are given below, but the present embodiment is not limited to these materials.
  • the organic light emitting material may be classified into a fluorescent material, a phosphorescent material, and the like. From the viewpoint of reducing power consumption, it is preferable to use a phosphorescent material with high emission efficiency.
  • aromatic dimethylidene compounds such as 4,4′-bis (2,2′-diphenylvinyl) -biphenyl (DPVBi); 5-methyl- Oxadiazole compounds such as 2- [2- [4- (5-methyl-2-benzoxazolyl) phenyl] vinyl] benzoxazole; 3- (4-biphenyl) -4-phenyl-5-t-butyl Triazole derivatives such as phenyl-1,2,4-triazole (TAZ); styrylbenzene compounds such as 1,4-bis (2-methylstyryl) benzene; thiopyrazine dioxide derivatives, benzoquinone derivatives, naphthoquinone derivatives, anthraquinone derivatives, Fluorescent organic materials such as diphenoquinone derivatives and fluorenone derivatives; azomethine zinc complexes, (8
  • Polymer light emitting materials used for the light emitting layer 37 include poly (2-decyloxy-1,4-phenylene) (DO-PPP), poly [2,5-bis- [2- (N, N, N-triethyl). Ammonium) ethoxy] -1,4-phenyl-alt-1,4-phenyllene] dibromide (PPP-NEt3 +), poly [2- (2′-ethylhexyloxy) -5-methoxy-1,4-phenylenevinylene ] (MEH-PPV), poly [5-methoxy- (2-propanoxysulfonide) -1,4-phenylenevinylene] (MPS-PPV), poly [2,5-bis- (hexyloxy) -1 , 4-phenylene- (1-cyanovinylene)] (CN-PPV) and the like; poly (9,9-dioctylfluorene) (PDAF) and the like Pyro derivatives; poly (N
  • the organic light emitting material is preferably a low molecular light emitting material, and from the viewpoint of reducing power consumption, it is preferable to use a phosphorescent material having high light emission efficiency.
  • a well-known dopant for organic EL elements can be used.
  • examples of such a dopant include p-quaterphenyl, 3,5,3,5-tetra-tert-butylsecphenyl, 3,5,3,5-tetra-tert-butyl-p for ultraviolet light-emitting materials.
  • -Fluorescent materials such as quinckphenyl.
  • a fluorescent light-emitting material such as a styryl derivative; bis [(4,6-difluorophenyl) -pyridinato-N, C2 ′] picolinate iridium (III) (FIrpic), bis (4 ′, 6
  • Examples include phosphorescent organic metal complexes such as' -difluorophenylpolydinato) tetrakis (1-pyrazoyl) borate iridium (III) (FIr 6 ).
  • the green light emitting material include phosphorescent organic metal complexes such as tris (2-phenylpyridinate) iridium (Ir (ppy) 3 ).
  • the thickness of the light emitting layer 37 is preferably 5 to 500 nm.
  • Examples of the material for the electron transport layer 38 include an inorganic material that is an n-type semiconductor, an oxadiazole derivative, a triazole derivative, a thiopyrazine dioxide derivative, a benzoquinone derivative, a naphthoquinone derivative, an anthraquinone derivative, a diphenoquinone derivative, and a fluorenone derivative.
  • an inorganic material that is an n-type semiconductor, an oxadiazole derivative, a triazole derivative, a thiopyrazine dioxide derivative, a benzoquinone derivative, a naphthoquinone derivative, an anthraquinone derivative, a diphenoquinone derivative, and a fluorenone derivative.
  • polymer materials such as poly (oxadiazole) (Poly-OXZ) and polystyrene derivatives (PSS) can be mentioned.
  • the electron injection layer 39 is provided in order to efficiently receive electrons from the cathode 32 b and efficiently transfer them to the electron transport layer 38.
  • Examples of the material of the electron injection layer 39 include fluorides such as lithium fluoride (LiF) and barium fluoride (BaF 2 ), oxides such as lithium oxide (Li 2 O), and the like.
  • the material used for the electron injection layer 39 preferably has a higher LUMO level than the material used for the electron transport layer 38.
  • the material used for the electron transport layer 38 is preferably a material having higher electron mobility than the material used for the electron injection layer 39.
  • the structure of the organic light emitting layer 33 is not limited to this, and can be appropriately set as necessary.
  • hole transport layer / light emitting layer / electron transport layer configuration hole injection layer / hole transport layer / light emitting layer / electron transport layer / electron injection layer configuration, hole injection layer / hole transport layer / An electron blocking layer / light emitting layer / hole blocking layer / electron injection layer can also be used.
  • a protective film may be formed so as to cover the cathode 32b in order to prevent intrusion of moisture and the like and damage caused by hitting the roll when wound.
  • Examples of the method for forming the protective film include EB vapor deposition, sputtering, ion plating, and resistance heating vapor deposition.
  • Examples of the material for the protective film include Al and Ag for metals, phthalocyanine for organic materials, and SiON, SiO, and SiN for inorganic materials.
  • each layer constituting the organic light emitting layer 33 includes a dry process such as a vacuum deposition method, and a wet process such as a doctor blade method, a dip coating method, a micro gravure method, a spray method, an inkjet method, and a printing method. Can be used.
  • a wet process in consideration of the influence of oxygen and moisture on the organic light emitting layer 33 and the like, it is preferable to perform the treatment under an inert gas atmosphere or under vacuum conditions.
  • a drying process by heating or the like in order to remove the solvent. In that case, it is preferable to perform a drying process in inert gas atmosphere, and it is more preferable to carry out under reduced pressure.
  • FIG. 6 is a plan view showing one surface side of a transparent support substrate having a plurality of light emitting element portions.
  • the plurality of light emitting element portions 3 are each formed in a rectangular band shape extending linearly with a predetermined width, and are arranged with a predetermined interval from adjacent light emitting element portions 3.
  • each of the plurality of light emitting element portions 3 has a surface 8a of the gas barrier layer 8 via a transparent adhesive layer 17 (FIG. 1) disposed between adjacent extension portions 6a of the auxiliary electrode 6. Are pasted together.
  • the light emitting element unit 3 is disposed so that the ends on both sides in the short direction of the transparent base film 31 are overlapped with a part of the auxiliary electrode 6 located on both sides of the light emitting element unit 3.
  • the transparent support substrate 2 and the transparent base film 31 (FIG. 5) have a rectangular shape, but are not necessarily rectangular, and may be any shape.
  • the anode 32a of each light emitting element portion 3 is electrically connected to the extension portion 6a of the auxiliary electrode 6 using a conductive paste 7 having a lower electrical resistance than the anode 32a and having an excellent electrical conductivity.
  • the cathode 32b of each light emitting element part 3 is electrically connected to the terminal electrode 5 using the conductive paste 7a.
  • FIG. 7 is a perspective view showing a connection state between the anode and the auxiliary electrode of the light emitting element part and a connection state between the cathode and the terminal electrode of the light emitting element part.
  • the conductive paste 7 is provided on the surface of each extension portion 6a along each extending direction.
  • the conductive paste 7 is provided from the surface of the extension portion 6a to the surface of the anode 32a through the side surfaces on both sides in the short direction of the transparent base film 31 of the light emitting element portion 3.
  • the anode 32a and the extension 6a are electrically connected through the conductive paste 7. That is, the anode 32a is electrically connected to the auxiliary electrode 6 in a wide range extending from one end to the other end in the longitudinal direction.
  • the anode 32a having a strip shape is formed using a material having high electrical resistance such as ITO or IZO. For this reason, when the anode 32a and the auxiliary electrode 6 (common portion 6b) are connected to one end in the longitudinal direction of the anode 32a facing the common portion 6b of the auxiliary electrode 6, in the longitudinal direction of the anode 32a. Voltage unevenness may occur. Therefore, in the present embodiment, the extension 6a is extended along the longitudinal direction of the anode 32a made of a material having high electrical resistance, and is electrically connected to the auxiliary electrode 6 in a wide range from one end to the other end in the longitudinal direction of the anode 32a. It has a connected configuration. Thereby, voltage unevenness in the longitudinal direction of the anode 32a does not occur.
  • a material having high electrical resistance such as ITO or IZO.
  • the current easily flows through the auxiliary electrode 6 in the anode 32a of each light emitting element section 3, and the influence of the voltage drop can be effectively suppressed.
  • the organic light emitting layer 33 is formed inside the ends of both sides in the short direction of the anode 32a, and the organic light emitting layer 33 and the conductive paste 7 are separated from each other.
  • the cathode 32b is electrically connected to the terminal electrode 5 by attaching an arch-shaped conductive paste 7a between the terminal electrode 5 and the end of each light emitting element portion 3 adjacent thereto.
  • the strip-shaped cathode 32b is connected to the conductive paste 7a at one end in the longitudinal direction. Since the cathode 32b is formed using a material having low electric resistance such as Al, voltage unevenness hardly occurs even when the connection portion with the terminal electrode 5 is on one end side in the longitudinal direction.
  • connection structure between the cathode 32b and the terminal electrode 5 is not limited to the conductive paste 7a formed by patterning a silver paste or the like, and a conductive tape may be used.
  • the sealing member 4 only needs to be capable of sealing the one surface 2 a side on which the light emitting element portion 3 and the like of the transparent support substrate 2 are provided.
  • Specific examples thereof include, for example, a method of sealing an inert gas such as nitrogen gas or argon gas with a glass substrate or a metal substrate, a method of further providing a hygroscopic agent such as barium oxide in the inert gas, or the like. Can be mentioned.
  • the organic EL device 1 described above can be easily manufactured using, for example, a manufacturing method including the following steps (1) to (5).
  • FIGS. 8A to 8C are explanatory views showing the manufacturing process of the color conversion filter substrate.
  • the left side of the drawing is a first to third perspective view showing the manufacturing process of the color conversion filter substrate
  • the right side of the drawing shows the manufacturing process of the color conversion filter substrate.
  • FIG. 3 is a first to third cross-sectional view.
  • the color conversion filter substrate of this embodiment is created by forming one or more types of color conversion filter layers in a desired pattern on the transparent support substrate 2 having a desired light emitting area.
  • a mask for obtaining a desired pattern of the color conversion filter layer 9 is formed on the transparent support substrate 2.
  • the composition containing the fluorescence conversion dye and the resist described above is applied so as to cover the mask, thereby forming a resist coating film.
  • the resist coating film is exposed and developed through a previously formed mask to form a color conversion filter layer 9 having a desired pattern (FIG. 8A).
  • the color conversion filter layer 9 has a thickness of 5 ⁇ m or more, preferably 8 to 15 ⁇ m.
  • the gas barrier layer 8 that covers the entire surface of the color conversion filter layer 9 is formed.
  • a material for forming the organic planarization layer 8A is applied on the transparent support substrate 2 so as to cover the entire surface of the color conversion filter layer 9, and exposure and development are performed through a previously formed mask.
  • an organic flattening layer 8A for sealing the periphery of the color conversion filter layer 9 is formed (FIG. 8B).
  • a material for forming the inorganic gas barrier layer 8B is applied on the transparent support substrate 2 so as to cover the entire surface of the organic planarizing layer 8A, and exposure and development are performed through a mask formed in advance. Then, an inorganic gas barrier layer 8B that seals the periphery of the organic planarizing layer 8A is formed (FIG. 8B).
  • the terminal electrode 5 and the auxiliary electrode 6 are patterned on the gas barrier layer 8 (FIG. 8C).
  • the terminal electrode 5 and the auxiliary electrode 6 can be patterned using, for example, a printing method, a vapor deposition method (resistance heating vapor deposition method, EB vapor deposition method, sputter vapor deposition method) or the like.
  • a printing method patterning can be performed by relief printing, intaglio printing, flat plate printing, ink jet method, screen printing, or the like.
  • the vapor deposition method patterning may be performed by a mask vapor deposition method using a shadow mask, or a metal film may be formed and patterned by a photolithography method using the metal film.
  • FIG. 9 is a schematic diagram of a film forming apparatus 11 based on a roll-to-roll method.
  • FIG. 10 is a perspective view showing an organic EL base (mother base material) 15 produced by the film forming apparatus 11.
  • a long transparent base substrate 13 that is a base material of the transparent base film 31 of the light emitting element portion 3 is prepared.
  • the anode 32 a, the organic light emitting layer 33, and the cathode 32 b are laminated on one surface 13 a of the transparent base substrate 13, and the organic EL base 15 as a raw roll of the light emitting element unit 3 is produced.
  • the organic EL base 15 is manufactured while continuously transporting the long transparent base substrate 13 wound in a roll shape, and then cut according to the size of each light emitting element portion 3. It is preferable to use a roll-to-roll method.
  • the organic EL base 15 (transparent base substrate 13) has a width of about 10 mm and a length of about 10 m, for example, and becomes the size of the light emitting element unit 3 by dividing the length in the length direction, for example, every 15 cm. It is.
  • various film forming means 16 such as a vapor deposition apparatus are installed. Further, a feed roller 14A for feeding the transparent base substrate 13 is provided on one end side of the chamber 11a, and a take-up roller 14B for winding the transparent base substrate 13 is provided on the other end side.
  • the transparent base substrate 13 can be wound up in a roll shape, and is configured to move from the sending roller 14A side toward the winding roller 14B side.
  • the chamber 11a of the film forming apparatus 11 is configured to be switchable to a nitrogen atmosphere or a vacuum condition.
  • various films are sequentially formed on the one surface 13a side of the transparent base substrate 13 under predetermined film forming conditions while winding the transparent base substrate 13 delivered from the delivery roller 14A by the take-up roller 14B.
  • FIG. 11 is a diagram showing in detail the configuration of the film forming apparatus 11 based on the roll-to-roll method.
  • 12A to 12E are first to fifth explanatory views showing a method for manufacturing a light emitting element portion using a roll-to-roll method.
  • the film forming apparatus 11 includes a cleaning unit 21 and an anode film forming unit 22 (film forming unit 16) between two feeding rollers 14 ⁇ / b> A and a winding roller 14 ⁇ / b> B that wind up the transparent base substrate 13.
  • Etching unit 23 organic layer deposition unit 24 (deposition unit 16), etching unit 25, cathode deposition unit 26 (deposition unit 16), etching unit 27, protective film deposition unit 28 (deposition unit 16)
  • An etching unit 29 is provided.
  • microwave plasma dry cleaning is performed on the one surface 13 a of the transparent base substrate 13 in the cleaning unit 21.
  • an ITO film is formed on the entire surface 13 a of the transparent base substrate 13 in the anode film forming unit 22. Thereafter, in the etching part 23, the ITO film is etched to form the anode 32a in a predetermined region. At this time, for example, the pattern is formed so that the short side direction of the anode 32 a is along the width direction of the transparent base substrate 13 and the long side direction of the anode 32 a is a rectangular shape along the length direction of the transparent base substrate 13.
  • the anode 32a Since the anode 32a has a rectangular shape in which the width in the short direction coincides with the width in the short direction of the transparent base substrate 13, the anode is formed on the entire surface 13a of the transparent base substrate 13 in the patterning of the anode 32a. It can be formed by performing etching without using a mask after the film is formed. For this reason, the anode 32a can be easily manufactured.
  • the organic light emitting layer 33 is formed on the entire surface of the anode 32 a in the organic layer forming part 24, and then the organic light emitting layer 33 is patterned in the etching part 25. At this time, the organic light emitting layer 33 is patterned so as to cover the anode 32a. One end in the length direction of the organic light emitting layer 33 covers the end of the anode 32a, and the other end in the length direction exposes the end of the anode 32a. To be formed.
  • the organic light emitting layer 33 is arranged so that both ends in the short direction of the organic light emitting layer 33 are positioned inside both ends in the short direction of the anode 32a, and both ends of the anode 32a in the short direction are exposed. Layer 33 is patterned. As a result, the organic light emitting layer 33 has a three-layer laminated structure of the transparent base substrate 13, the anode 32 a, and the organic light emitting layer 33 at one end and the central portion in the length direction. At both ends in the hand direction, a two-layer structure of the transparent base substrate 13 and the anode 32a is formed.
  • the cathode 32b is formed on the entire surface of the organic light emitting layer 33 in the cathode film forming portion 26, and the cathode 32b is subsequently patterned in the etching portion 27. At this time, the cathode 32b is patterned so as to cover the organic light emitting layer 33.
  • One end of the organic light emitting layer 33 in the length direction covers the end of the cathode 32b, and the other end in the length direction exposes the end of the cathode 32b. To be formed.
  • both ends in the short direction of the cathode 32b are positioned inside both ends in the short direction of the organic light emitting layer 33 so that both ends in the short direction of the organic light emitting layer 33 are exposed.
  • the cathode 32b is patterned.
  • a four-layered structure of the transparent base substrate 13, the anode 32a, the organic light emitting layer 33, and the cathode 32b is formed at one end in the length direction and the central portion of the cathode 32b.
  • a protective film made of, for example, SiO 2 is formed so as to cover the cathode 32b, and in the subsequent etching unit 29, a protective film (not shown) is patterned.
  • the anode 32a, the organic light emitting layer 33, the cathode 32b, and the protective film are formed on the transparent base substrate 13 for each formation region R of the light emitting element portion 3, and the organic EL base 15 is obtained.
  • the manufactured organic EL base 15 is wound up by the winding roller 14B.
  • the organic EL base 15 unwound from the take-up roller 14 ⁇ / b> B is cut for each light emitting element part forming region R, and a plurality of light emitting element parts 3 are obtained. At this time, the surfaces on both sides in the short direction of the anode 32a are exposed.
  • the organic EL base 15 is divided in a dry air booth or a glove box. As described above, the light emitting element portion 3 is completed through the above-described steps.
  • FIG. 13A to 13C are diagrams for explaining a process of providing a plurality of light emitting element portions on the color conversion filter substrate 12 that have undergone the inspection process.
  • FIG. 14 is a cross-sectional view for explaining the light emitting element portion arranging step.
  • FIG. 15 is a cross-sectional view for explaining a connection process between the anode and the auxiliary electrode.
  • FIG. 16 is a side view for explaining a connection process between the cathode and the terminal electrode.
  • FIG. 17 is a cross-sectional view showing a connection structure between a cathode and a terminal electrode in one light emitting element portion.
  • FIG. 18 is a cross-sectional view for explaining the sealing step.
  • a plurality of (four in the present embodiment) light emitting element portions 3 are fixed at predetermined positions of the color conversion filter substrate 12 using a transparent thermosetting resin or the like.
  • a transparent thermosetting resin is disposed between the adjacent auxiliary electrodes 6 formed on the gas barrier layer 8 of the color conversion filter substrate 12 to form the adhesive layer 17, respectively.
  • a plurality of light emitting element portions 3 are arranged on the color conversion filter substrate 12 via the adhesive layers 17. For this reason, the plurality of light emitting element portions 3 are arranged at predetermined intervals in the arrangement direction.
  • the light emitting element portion 3 when the light emitting element portion 3 is attached between two adjacent extension portions 6a and 6a on the transparent support substrate 2, the two extension portions 6a and 6a and the transparent base film of the light emitting element portion 3 are used.
  • the light emitting element portion 3 is arranged so that both ends of the 31 in the short direction overlap each other.
  • the plurality of light emitting element portions 3 arranged on the color conversion filter substrate 12 and the auxiliary electrode 6 are electrically connected using a conductive paste 7.
  • the conductive paste 7 is provided from the surface of the extension portion 6a of the auxiliary electrode 6 through the transparent base film 31 and the anode 32a of the light emitting element portion 3 to the exposed portion of the surface of the anode 32a.
  • the anode 32a of each light emitting element part 3 and the extension parts 6a and 6a located on both sides thereof are electrically connected via the conductive pastes 7 and 7.
  • each of the cathodes 32b of the plurality of light emitting element portions 3 and the terminal electrode 5 are electrically connected through a conductive paste 7a.
  • the conductive paste 7 a partially covers the surface on one end side in the longitudinal direction of the cathode 32 b formed so as to cover one end of the organic light emitting layer 33.
  • the cathode 32 b is formed in the upper layer of the light emitting element portion 3, it can be easily electrically connected to the terminal electrode 5.
  • the sealing member 4 made of a glass substrate was fixed to one surface 2 a of the transparent support substrate 2, and the plurality of light emitting element portions 3 were sealed.
  • the sealing member 4 is fixed by a UV curable resin (not shown) provided in the peripheral portion of the transparent support substrate 2.
  • a desiccant was disposed in the sealed space defined by the transparent support substrate 2 and the sealing member 4.
  • the light emitting layer 37 of the organic light emitting layer 33 in the light emitting element section 3 has a single layer structure. For this reason, compared with the light emitting layer of the laminated structure corresponding to each color, it is hard to produce film thickness nonuniformity, and it is the organic EL device 1 without color nonuniformity.
  • light (blue to blue-green light) emitted from the light emitting element unit 3 in the organic EL device 1 according to the present embodiment passes through between the adjacent extensions 6a and 6a of the auxiliary electrode 6, and the color conversion filter substrate 12 is used. Incident to.
  • the light (blue to blue-green light) incident on the color conversion filter layer 9 is color-converted in the color conversion filter layer 9 and emitted as white light (light having a wavelength distribution different from that of the incident light). Become.
  • the white light emitted from the color conversion filter layer 9 is emitted approximately isotropically, in addition to the light emitted from the light emission surface (surface opposite to the one surface 2a) side of the transparent support substrate 2, There is light emitted toward the side opposite to the transparent support substrate 2, that is, toward the light emitting element portion 3 side. Most of the light emitted toward the light emitting element unit 3 is reflected by the cathode 32b of the light emitting element unit 3, the terminal electrode 5 and the auxiliary electrode 6 provided on the transparent support substrate 2, and the transparent support substrate. 2 is emitted from the light exit surface side.
  • the light that is not reflected by any of the cathode 32b, the terminal electrode 5, and the auxiliary electrode 6 is part of the organic light emitting layer 33 (extension portion 6a and cathode 32b). May leak through the gap.
  • the width W1 in the short direction of the cathode 32b of the light emitting element portion 3 and the distance L1 between the adjacent extension portions 6a of the auxiliary electrode 6 are set to be substantially equal dimensions, and the position of the end portion of the cathode 32b. And the position of the edge part of the extension part 6a is made to correspond in the stacking direction. Furthermore, the plurality of light emitting element portions 3 are arranged so that the respective end portions on both sides in the short direction of each transparent base film 31 are overlapped with a part of the auxiliary electrode 6 located on both sides of each light emitting element portion 3. It has a configuration.
  • the interval between the adjacent extension portions 6a is wider than the width in the short direction of the cathode 32b, a part of the light emitted from the color conversion filter layer 9 is formed between the extension portion 6a and the cathode 32b. There is a risk of leaking through the gap. Further, in the case where the interval between the adjacent extension portions 6a is narrower than the width in the short direction of the cathode 32b, the light emission component from the light emitting element portion 3 that does not reach the color conversion filter layer 9 increases. May decrease. For this reason, it becomes the organic EL device 1 which suppressed light extraction loss by setting it as the structure of this embodiment mentioned above.
  • the distance between the anode 32a and the cathode 32b is an optical distance that constitutes a microresonator with respect to the wavelength emitted by the light emitting layer 37. For this reason, light with high directivity is radiated from the light emitting element part 3 toward the color conversion filter layer 9, so that the loss of light reaching the color conversion filter layer 9 from the light emitting element part 3 is low.
  • the plurality of light emitting element portions 3 are fixed to the surface of the gas barrier layer 8 through a transparent adhesive layer 17 disposed between the adjacent extension portions 6a. Thereby, the adhesiveness of the light emitting element part 3 and the gas barrier layer 8 can be improved.
  • the gas barrier layer 8 in the present embodiment is composed of a laminate of the organic planarizing layer 8A and the inorganic gas barrier layer 8B. Thereby, the flatness on the color conversion filter layer 9 and the gas barrier property with respect to the color conversion filter layer 9 are improved.
  • the color conversion filter layer 9 in the present embodiment has a single or a plurality of types of color conversion dye layers formed by forming a resin film containing a fluorescent dye arranged on the transparent support substrate 2 in a desired pattern. It is configured. For this reason, it is possible to emit light of a desired color tone by adjusting the concentration of the fluorescent dye or the thickness of the color conversion dye layer of each color.
  • the anode 32a of the light emitting element portion 3 and the extension portion 6a of the auxiliary electrode 6 cover the side surfaces on both sides in the short direction of the transparent base film 31, and are provided so as to partially run on the surface of the anode 32a.
  • the conductive paste 7 is electrically connected. Thereby, the reliability of the electrical connection between the anode 32a and the extension 6a is improved.
  • the organic EL device 1 in the present embodiment has a configuration in which a plurality of light emitting element portions 3 are sealed in a space defined by the transparent support substrate 2 and the sealing member 4.
  • the organic EL device 1 in the present embodiment manufactures a plurality of light emitting element portions 3 using a roll-to-roll method. Since a film forming apparatus having a small film forming chamber can be used as compared with the case where a plurality of laminated films (organic light emitting layers, etc.) constituting the light emitting element portion are directly formed on the transparent support substrate 2 side, The film thickness unevenness of the laminated film hardly occurs. For this reason, the light emitting element part 3 with little color unevenness in a light emission surface can be manufactured.
  • FIG. 19 is a cross-sectional view illustrating a schematic configuration of the organic EL device according to the second embodiment.
  • the organic EL device in the present embodiment is different from the above-described embodiment in that a color conversion filter layer is provided on the light emitting element portion side.
  • the organic EL device 40 includes an electrode side substrate 41, a plurality of light emitting element portions 43 provided on the electrode side substrate 41, and a sealing member 4 that seals the plurality of light emitting element portions 43. And is mainly configured.
  • the electrode side substrate 41 has the transparent support substrate 2, the auxiliary electrode 6, and a terminal electrode (not shown).
  • the auxiliary electrode 6 and the terminal electrode (not shown) are directly formed on the one surface 2 a of the transparent support substrate 2.
  • the light-emitting element unit 43 includes a strip-shaped transparent base film (first base material) 31, a strip-shaped color conversion filter layer 9, a strip-shaped gas barrier layer 8, a strip-shaped anode 32a having optical transparency, and a strip-shaped organic film.
  • the light emitting layer 33 and a strip-like cathode 32b are provided.
  • the color conversion filter layer 9 is formed so as to cover the entire surface of the transparent base film 31.
  • the gas barrier layer 8 covers the entire surface of the color conversion filter layer 9 (the surface opposite to the transparent base film 31) and is laminated on the color conversion filter layer 9.
  • the anode 32a is formed in a predetermined region on the surface of the gas barrier layer 8 (surface opposite to the color conversion filter layer 9 side). On the anode 32a, the organic light emitting layer 33 and the cathode 32b are laminated
  • the plurality of light emitting element portions 43 each having the color conversion filter layer 9 are arranged at predetermined positions on the electrode side substrate 41.
  • the anode 32 a of each light emitting element portion 43 and the auxiliary electrode 6 provided on the electrode side substrate 41 are electrically connected via the conductive paste 7.
  • the cathode 32b of each light emitting element part 43 and the terminal electrode 5 are electrically connected through the conductive paste 7a.
  • the sealing member 4 is bonded to one surface of the electrode side substrate 41 (the surface on which the plurality of light emitting element portions 43 each having the color conversion filter layer 9 are disposed). A plurality of light emitting element portions 43 are sealed in a space defined by the stop member 4.
  • the light emitting element portion 43 in the present embodiment is also obtained by dividing the organic EL base produced by the roll-to-roll method, and is produced independently from the electrode side substrate 42. is there.
  • the color conversion filter layer 9 is provided on the transparent base film 31 of the light emitting element portion 43, the color conversion filter layer is formed on the transparent support substrate 2 having a larger area than the transparent base film 31.
  • the color conversion filter layer 9 can be formed with a uniform film thickness on the transparent base film 31 more easily. Thereby, the organic EL device 40 with little color unevenness is obtained.
  • the light emitting element portions 43 are arranged in a matrix in the vertical and horizontal directions.
  • the color conversion filter layer 9 and wirings connected to the anode 32a and the cathode 32b of the light emitting element portion 43 are formed in a grid pattern.
  • an interlayer insulating film is formed at the intersection of the wiring.
  • the connection between the anode and the anode wiring (first wiring 51) is made at one end along the long axis direction of the light emitting element.
  • the conductive paste 7 or the conductive tape is used to connect to the part.
  • the connection between the cathode and the wiring for the cathode (second wiring 52) is also performed using the conductive paste 7 or the conductive tape in the same manner as the connection between the cathode and the terminal electrode in the first embodiment.
  • One of the wirings connected to the anode and the cathode of the light emitting element may not be formed on the substrate on which the light emitting element is disposed.
  • it may be a conductive wire (conductive wire) connected to the anode or cathode terminal of the light emitting element.
  • a switching element 53 may be provided for each wiring for the anode and the cathode, and an arbitrary light emitting element may be selected and lit by scanning the switch operation.
  • This coating solution is applied onto a transparent support substrate on which the line pattern of the green conversion dye layer has already been formed using a spin coat method, and patterning is performed by a photolithographic method to form a red conversion dye layer.
  • the line pattern has a line width of 0.1 mm, a pitch of 0.33 mm, and a film thickness of 10 ⁇ m. In this way, a color conversion filter layer having a green conversion dye layer and a red conversion dye layer is obtained.
  • an organic planarization layer was first formed as a gas barrier layer on the color conversion filter layer.
  • the organic flattening layer is formed with a film thickness of 8 ⁇ m (film thickness from the top of the color conversion filter layer) by applying UV curable resin (epoxy-modified acrylate) by spin coating and irradiating with a high-pressure mercury lamp. did. At this time, there was no deformation in the pattern shape of each green conversion dye layer and red conversion dye layer in the color conversion filter layer, and the surface of the organic flattening layer was flat.
  • an inorganic gas barrier layer as a passivation film is formed on the surface of the organic planarization layer.
  • a SiOx film having a thickness of 300 nm was formed by DC sputtering at room temperature.
  • a gas barrier layer is composed of a laminate of the inorganic gas barrier layer and the organic planarization layer. Si was used as the sputtering target, and a mixed gas of Ar and oxygen was used as the sputtering gas.
  • Terminal electrode and auxiliary electrode formation process Next, terminal electrodes and auxiliary electrodes were patterned on the gas barrier layer by a known screen printing method using a conductive paste containing silver. After patterning, in order to cure the conductive paste, a drying treatment was performed by heating in an atmosphere of 120 ° C. for 15 minutes. In this way, the terminal electrode and the auxiliary electrode are formed.
  • an anode made of ITO indium oxide-tin oxide
  • a transparent base substrate made of a strip-like PET film wound into a roll having a length of 10 m and a width of 20 mm.
  • ultrasonic cleaning was performed for 10 minutes with respect to the produced transparent base substrate with an anode using acetone or IPA.
  • the transparent base substrate with an anode was set in a film forming apparatus based on a roll-to-roll method, and an organic light emitting layer and a cathode were formed under predetermined conditions. Specifically, the deposition rate of each film was controlled while the transparent base substrate with an anode was transferred at a constant speed of 1 m / min to form a predetermined film thickness.
  • a hole injection layer having a thickness of 100 nm was formed by resistance heating vapor deposition using 1,1-bis-di-4-tolylamino-phenyl-cyclohexane (TAPC) as a hole injection material.
  • TAPC 1,1-bis-di-4-tolylamino-phenyl-cyclohexane
  • N, N′-di-1-naphthyl-N, N′-diphenyl-1,1′-biphenyl-1,1′-biphenyl-4,4′-diamine is used as the hole transport material. Then, a hole transport layer having a film thickness of 40 nm was formed by resistance heating vapor deposition.
  • This blue light-emitting layer comprises 1,4-bis-triphenylsilyl-benzene (UGH-2) (host material) and bis (4 ′, 6′-difluorophenylpolydinato) tetrakis (1-pyrazolyl) borate iridium (III) (FIr 6 ) (blue phosphorescent dopant) was formed by co-evaporation.
  • a hole blocking layer (thickness: 10 nm) was formed on the light emitting layer using 2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline (BCP).
  • an electron transport layer (thickness: 30 nm) was formed on the hole blocking layer using tris (8-hydroxyquinoline) aluminum (Alq3).
  • an electron injection layer (thickness: 0.5 nm) was formed on the electron transport layer using lithium fluoride (LiF).
  • the produced organic EL base was divided into predetermined regions (light emitting element portion forming regions), and six light emitting element portions of 15 cm ⁇ 20 mm were produced.
  • the prepared six light emitting element portions were attached to predetermined positions of the transparent support substrate 2 on which the color conversion filter layer, the gas barrier layer, the terminal electrode, and the auxiliary electrode were formed.
  • This coating solution is applied onto a transparent support substrate on which the line pattern of the green conversion dye layer has already been formed using a spin coat method, and patterning is performed by a photolithographic method to form a red conversion dye layer.
  • a color conversion filter layer is obtained by forming a line pattern having a line width of 0.1 mm, a pitch of 0.33 mm, and a film thickness of 10 ⁇ m.
  • the gas barrier layer, terminal electrode, and auxiliary electrode are formed in the same manner as in Example 1.
  • a transparent base substrate with an anode is prepared, and after cleaning, the transparent base substrate with an anode is set in a film forming apparatus based on a roll-to-roll method.
  • the organic light emitting layer and the cathode were formed to have a predetermined film thickness by controlling the deposition rate of each film while transferring the transparent base substrate with the anode at a constant speed of 1 m / min.
  • TAPC 1,1-Bis-di-4-tolylamino-phenyl-cyclohexane
  • N, N′-di-1-naphthyl-N, N′-diphenyl-1,1′-biphenyl-1,1′-biphenyl-4,4′-diamine is used as the hole transport material. Then, a hole transport layer having a film thickness of 40 nm was formed by resistance heating vapor deposition.
  • This blue-green light-emitting layer consists of 1,4-bis-triphenylsilyl-benzene (UGH-2) (host material) and bis [(4,6-difluorophenyl) -pyridinato-N, C2 ′] picolinate iridium (III) (FIrpic) (blue-green phosphorescent dopant) was formed by co-evaporation.
  • UH-2 1,4-bis-triphenylsilyl-benzene
  • FIrpic picolinate iridium
  • a hole blocking layer (thickness: 10 nm) was formed on the light emitting layer using 2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline (BCP).
  • an electron transport layer (thickness: 30 nm) was formed on the hole blocking layer using tris (8-hydroxyquinoline) aluminum (Alq 3 ).
  • an electron injection layer (thickness: 0.5 nm) was formed on the electron transport layer using lithium fluoride (LiF).
  • the produced organic EL base was divided into predetermined regions (light emitting element portion forming regions) to produce six light emitting element portions of 15 cm ⁇ 20 mm. Subsequent arrangement, connection, and sealing steps of the light emitting element portion were performed in the same manner as in Example 1.
  • terminal electrodes and auxiliary electrodes were patterned by a known screen printing method using a conductive paste containing silver. After patterning, in order to cure the conductive paste, a drying treatment was performed by heating in an atmosphere of 120 ° C. for 15 minutes. In this way, the terminal electrode and the auxiliary electrode are formed.
  • a color conversion layer, a passivation film, an anode, an organic light emitting layer, and a cathode were sequentially formed on one surface of the transparent base substrate.
  • a color conversion film made of coumarin 6 and DCM-2 was formed by vapor deposition on the surface of a transparent base substrate made of a strip-like PET film wound up in a roll shape having a length of 10 m and a width of 20 mm. .
  • the deposition rate of coumarin 6 is 0.3 nm / s
  • the deposition rate of DCM-2 is 0.005 nm / s
  • a color conversion film having a molar ratio of coumarin 6 and DCM-2 of 49: 1 is formed.
  • a film thickness of 200 nm was formed.
  • an inorganic gas barrier layer is formed as a passivation film.
  • a SiOx film having a thickness of 300 nm was formed by DC sputtering at room temperature.
  • a gas barrier layer is composed of a laminate of the inorganic gas barrier layer and the organic planarization layer. Si was used as the sputtering target, and a mixed gas of Ar and oxygen was used as the sputtering gas.
  • anode made of ITO indium oxide-tin oxide
  • an organic EL base having a plurality of light-emitting element part formation regions was manufactured in the same process as in Example 2.
  • the produced organic EL base was divided into predetermined regions (light emitting element portion forming regions), and six light emitting element portions of 15 cm ⁇ 20 mm were produced. Subsequent arrangement, connection, and sealing steps of the light emitting element portion were performed in the same manner as in Example 1.
  • the light emitting element part was singulated and sealed.
  • An organic EL device similar to that of Example 1 was manufactured, except that the gap between the auxiliary electrodes was 16 mm, and the end portions in the long axis direction of the light emitting element portion were overlapped by 2 mm.
  • FIG. 22A is a plan view illustrating a display portion of a dot matrix display device that is one embodiment of the present invention
  • FIG. 22B is a plan view illustrating a display portion of a segment display device that is one embodiment of the present invention. It is.
  • the organic EL device according to the third embodiment can be applied as a display device to a dot matrix type display device as shown in FIG. 22A, for example.
  • the light emitting element portion is formed so that the light emitting region is square.
  • the shape of the light emitting region does not need to be square as in this example, and may be circular.
  • the organic EL device according to the third embodiment can be applied to a segment type display device as shown in FIG. 22B, for example.
  • FIG. 22B shows only the case of 7-segment display, a 16-segment display element can be similarly formed.
  • a display device can be used as a display device for digital signage for displaying character information and video in a display area having a size of about a meter square or larger, or an illumination device capable of displaying images and characters. As an electronic bulletin board outdoors, as shown in FIG.
  • the present invention can be applied to a display unit 103 in an electronic bulletin board connected to a solar battery 101 and an information processing apparatus 102 via a network. Further, as shown in FIG. 24, the present invention can be applied to a lighting device having a light emitting portion 1401 in the shape of a window capable of displaying images and characters. With one embodiment of the present invention, such a system can be manufactured at a lower cost than in the past.
  • FIG. 20A is a perspective view showing a ceiling light which is an embodiment of the illumination device of the present invention
  • FIG. 20B is a perspective view showing an illumination stand which is an embodiment of the illumination device of the present invention.
  • the organic EL device according to each of the above embodiments can be applied to a ceiling light (illumination device) 1400 as an illumination device, for example, as shown in FIG. 20A.
  • a ceiling light 1400 shown in FIG. 20A includes a light emitting unit 1401, a suspended line 1402, a power cord 1403, and the like.
  • the organic EL device of each said embodiment can be applied suitably as the light emission part 1401.
  • FIG. 20A is a perspective view showing a ceiling light which is an embodiment of the illumination device of the present invention
  • FIG. 20B is a perspective view showing an illumination stand which is an embodiment of the illumination device of the present invention.
  • the organic EL device according to each of the above embodiments can be applied to a ceiling light (illumination device) 1400 as an illumination device,
  • the organic EL device according to each of the above embodiments By applying the organic EL device according to each of the above embodiments to the light emitting unit 1401 of the ceiling light 1400, it is possible to obtain illumination light of a free color tone with low power consumption, and to realize a lighting fixture with high light performance. Can do. In addition, it is possible to realize a lighting fixture capable of emitting surface light with high color purity with uniform illuminance.
  • the organic EL device according to each of the above embodiments can be applied to a lighting stand (lighting device) 1500 as a lighting device, for example, as shown in FIG. 20B.
  • An illumination stand 1500 illustrated in FIG. 20B includes a light emitting unit 1501, a stand 1502, a main switch 1503, a power cord 1504, and the like.
  • the organic EL device of each of the above embodiments can be suitably applied as the light emitting unit 1501.
  • By applying the organic EL device according to each of the above embodiments to the light emitting unit 1501 of the lighting stand 1500 it is possible to obtain illumination light of a free color tone with low power consumption, and to realize a lighting fixture with high light performance. Can do.
  • Some embodiments of the present invention can be used for an organic light-emitting element having no color unevenness that can be manufactured at low cost, a method for manufacturing the organic light-emitting element, a lighting device, an organic light-emitting display element, and the like.

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  • Physics & Mathematics (AREA)
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  • Electroluminescent Light Sources (AREA)

Abstract

Selon un mode de réalisation, la présente invention concerne un dispositif électroluminescent organique (1) qui comprend: des sections d'élément électroluminescent (3), qui comportent chacune une anode transmettant la lumière (32a), une couche électroluminescente organique (33) et une cathode (32b) qui sont situées sur un film de base transparent (31); un substrat de support transparent (2) sur lequel sont disposées les sections d'élément électroluminescent (3); une pluralité d'électrodes auxiliaires (6), qui sont formées en étant espacées l'une de l'autre sur le substrat de support transparent (2), et dont chacune est électriquement connectée à l'anode (32a) de chacune des sections d'élément électroluminescent (3); une électrode terminale, qui est formée sur le substrat de support transparent (2) et qui est électriquement connectée à la cathode (32b) de chacune des sections d'élément électroluminescent (3); et une couche de filtre de conversion de couleur (9), qui est disposée sur le film de base transparent (31) ou le substrat de support transparent (2), et qui délivre de la lumière par conversion de la couleur de la lumière émise par les sections d'élément électroluminescent (3).
PCT/JP2014/078346 2013-11-20 2014-10-24 Élément électroluminescent organique, procédé de fabrication d'élément électroluminescent organique, appareil d'éclairage et élément d'affichage électroluminescent organique WO2015076060A1 (fr)

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JP2005302440A (ja) * 2004-04-08 2005-10-27 Mitsubishi Electric Corp 有機エレクトロルミネセンスディスプレイ
JP2006032057A (ja) * 2004-07-14 2006-02-02 Harison Toshiba Lighting Corp 発光装置
JP2006163325A (ja) * 2004-11-11 2006-06-22 Fuji Electric Holdings Co Ltd 有機ｅｌディスプレイ
JP2006164618A (ja) * 2004-12-03 2006-06-22 Fuji Electric Holdings Co Ltd 複数の有機ｅｌ発光素子を利用した表示装置
JP2009520214A (ja) * 2005-11-14 2009-05-21 キリュスシェフ、イリナ ディスプレイ・モジュールとタイルド・ディスプレイの製造方法
WO2011007480A1 (fr) * 2009-07-17 2011-01-20 シャープ株式会社 Dispositif électroluminescent organique, procédé de production de dispositif électroluminescent organique et dispositif d'éclairage électroluminescent organique
WO2011052209A1 (fr) * 2009-10-30 2011-05-05 シャープ株式会社 Dispositif électro-optique et son procédé de fabrication
WO2011090039A1 (fr) * 2010-01-19 2011-07-28 パナソニック電工株式会社 Dispositif électroluminescent à émission par la surface
WO2012005158A1 (fr) * 2010-07-06 2012-01-12 シャープ株式会社 Dispositif d'éclairage et son procédé de fabrication
WO2012102194A1 (fr) * 2011-01-25 2012-08-02 パナソニック株式会社 Dispositif électroluminescent planaire

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005302440A (ja) * 2004-04-08 2005-10-27 Mitsubishi Electric Corp 有機エレクトロルミネセンスディスプレイ
JP2006032057A (ja) * 2004-07-14 2006-02-02 Harison Toshiba Lighting Corp 発光装置
JP2006163325A (ja) * 2004-11-11 2006-06-22 Fuji Electric Holdings Co Ltd 有機ｅｌディスプレイ
JP2006164618A (ja) * 2004-12-03 2006-06-22 Fuji Electric Holdings Co Ltd 複数の有機ｅｌ発光素子を利用した表示装置
JP2009520214A (ja) * 2005-11-14 2009-05-21 キリュスシェフ、イリナ ディスプレイ・モジュールとタイルド・ディスプレイの製造方法
WO2011007480A1 (fr) * 2009-07-17 2011-01-20 シャープ株式会社 Dispositif électroluminescent organique, procédé de production de dispositif électroluminescent organique et dispositif d'éclairage électroluminescent organique
WO2011052209A1 (fr) * 2009-10-30 2011-05-05 シャープ株式会社 Dispositif électro-optique et son procédé de fabrication
WO2011090039A1 (fr) * 2010-01-19 2011-07-28 パナソニック電工株式会社 Dispositif électroluminescent à émission par la surface
WO2012005158A1 (fr) * 2010-07-06 2012-01-12 シャープ株式会社 Dispositif d'éclairage et son procédé de fabrication
WO2012102194A1 (fr) * 2011-01-25 2012-08-02 パナソニック株式会社 Dispositif électroluminescent planaire

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