WO2013141673A1 - 유기전자소자용 기판의 제조방법 - Google Patents
유기전자소자용 기판의 제조방법 Download PDFInfo
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- WO2013141673A1 WO2013141673A1 PCT/KR2013/002462 KR2013002462W WO2013141673A1 WO 2013141673 A1 WO2013141673 A1 WO 2013141673A1 KR 2013002462 W KR2013002462 W KR 2013002462W WO 2013141673 A1 WO2013141673 A1 WO 2013141673A1
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- MCJGNVYPOGVAJF-UHFFFAOYSA-N quinolin-8-ol Chemical compound C1=CN=C2C(O)=CC=CC2=C1 MCJGNVYPOGVAJF-UHFFFAOYSA-N 0.000 description 1
- 239000010979 ruby Substances 0.000 description 1
- 229910001750 ruby Inorganic materials 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- FZHAPNGMFPVSLP-UHFFFAOYSA-N silanamine Chemical class [SiH3]N FZHAPNGMFPVSLP-UHFFFAOYSA-N 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 239000005368 silicate glass Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000010944 silver (metal) Substances 0.000 description 1
- 239000005361 soda-lime glass Substances 0.000 description 1
- 238000003980 solgel method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 235000021286 stilbenes Nutrition 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
- IFLREYGFSNHWGE-UHFFFAOYSA-N tetracene Chemical compound C1=CC=CC2=CC3=CC4=CC=CC=C4C=C3C=C21 IFLREYGFSNHWGE-UHFFFAOYSA-N 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- VXUYXOFXAQZZMF-UHFFFAOYSA-N titanium(IV) isopropoxide Chemical compound CC(C)O[Ti](OC(C)C)(OC(C)C)OC(C)C VXUYXOFXAQZZMF-UHFFFAOYSA-N 0.000 description 1
- 150000003918 triazines Chemical class 0.000 description 1
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 description 1
- ISNYUQWBWALXEY-OMIQOYQYSA-N tsg6xhx09r Chemical compound O([C@@H](C)C=1[C@@]23CN(C)CCO[C@]3(C3=CC[C@H]4[C@]5(C)CC[C@@](C4)(O)O[C@@]53[C@H](O)C2)CC=1)C(=O)C=1C(C)=CNC=1C ISNYUQWBWALXEY-OMIQOYQYSA-N 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- YVTHLONGBIQYBO-UHFFFAOYSA-N zinc indium(3+) oxygen(2-) Chemical compound [O--].[Zn++].[In+3] YVTHLONGBIQYBO-UHFFFAOYSA-N 0.000 description 1
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical class [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K77/00—Constructional details of devices covered by this subclass and not covered by groups H10K10/80, H10K30/80, H10K50/80 or H10K59/80
- H10K77/10—Substrates, e.g. flexible substrates
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/805—Electrodes
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
- C03C17/3411—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions with at least two coatings of inorganic materials
- C03C17/3417—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions with at least two coatings of inorganic materials all coatings being oxide coatings
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/02—Diffusing elements; Afocal elements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/02—Diffusing elements; Afocal elements
- G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
- G02B5/021—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures
- G02B5/0221—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures the surface having an irregular structure
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/02—Diffusing elements; Afocal elements
- G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
- G02B5/021—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures
- G02B5/0226—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures having particles on the surface
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B33/00—Electroluminescent light sources
- H05B33/02—Details
- H05B33/04—Sealing arrangements, e.g. against humidity
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B33/00—Electroluminescent light sources
- H05B33/10—Apparatus or processes specially adapted to the manufacture of electroluminescent light sources
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B33/00—Electroluminescent light sources
- H05B33/12—Light sources with substantially two-dimensional radiating surfaces
- H05B33/22—Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of auxiliary dielectric or reflective layers
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B33/00—Electroluminescent light sources
- H05B33/12—Light sources with substantially two-dimensional radiating surfaces
- H05B33/26—Light sources with substantially two-dimensional radiating surfaces characterised by the composition or arrangement of the conductive material used as an electrode
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/805—Electrodes
- H10K50/81—Anodes
- H10K50/813—Anodes characterised by their shape
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/805—Electrodes
- H10K50/81—Anodes
- H10K50/818—Reflective anodes, e.g. ITO combined with thick metallic layers
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- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/805—Electrodes
- H10K50/82—Cathodes
- H10K50/822—Cathodes characterised by their shape
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/805—Electrodes
- H10K50/82—Cathodes
- H10K50/828—Transparent cathodes, e.g. comprising thin metal layers
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- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/84—Passivation; Containers; Encapsulations
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/84—Passivation; Containers; Encapsulations
- H10K50/844—Encapsulations
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—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
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/85—Arrangements for extracting light from the devices
- H10K50/856—Arrangements for extracting light from the devices comprising reflective means
-
- 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
- H10K50/858—Arrangements for extracting light from the devices comprising refractive means, e.g. lenses
-
- 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
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
- H10K71/60—Forming conductive regions or layers, e.g. electrodes
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2218/00—Methods for coating glass
- C03C2218/10—Deposition methods
- C03C2218/11—Deposition methods from solutions or suspensions
- C03C2218/113—Deposition methods from solutions or suspensions by sol-gel processes
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2218/00—Methods for coating glass
- C03C2218/30—Aspects of methods for coating glass not covered above
- C03C2218/32—After-treatment
- C03C2218/328—Partly or completely removing a coating
-
- 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
- H10K2102/302—Details of OLEDs of OLED structures
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/549—Organic PV cells
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Definitions
- the present application relates to a method for manufacturing an organic electronic device substrate or an organic electronic device and an organic electronic device.
- OED organic electronic device
- OLED organic light emitting device
- OPC organic photoconductor
- An organic light emitting device which is a representative organic electronic device, typically includes a substrate, a first electrode layer, an organic layer including a light emitting layer, and a second electrode layer sequentially.
- the first electrode layer may be formed of a transparent electrode layer, and the second electrode layer may be formed of a reflective electrode layer.
- the first electrode layer may be formed as a reflective electrode layer, and the second electrode layer may be formed as a transparent electrode layer.
- Electrons and holes are injected by the two electrode layers, respectively, and the injected electrons and holes are recombined in the emission layer to generate light.
- Light may be emitted to the substrate side in the bottom light emitting device and to the second electrode layer side in the top light emitting device.
- ITO Indium tin oxide
- an organic layer an organic layer
- a glass substrate which are generally used as a transparent electrode layer in the structure of the organic light emitting device, have refractive indices of about 2.0, 1.8, and 1.5, respectively.
- refractive indices of about 2.0, 1.8, and 1.5, respectively.
- the structure may be a path through which moisture, oxygen, or the like penetrates from the outside, which may cause a significant decrease in the reliability of the device.
- the present application is to provide a method for manufacturing an organic electronic device substrate or an organic electronic device and an organic electronic device.
- An exemplary method for manufacturing a substrate for an organic electronic device of the present application may include processing an optical functional layer formed on a substrate layer.
- the optical functional layer can be processed by, for example, a laser. By the laser, the optical functional layer can be processed to have a smaller projected area than that of the base layer.
- projection area refers to the area of the projection of the object to be recognized when the substrate for the organic electronic device is observed from the top of the substrate surface in the normal direction, for example, the base layer, the optical functional layer, or the electrode layer. It means the area of the back.
- the optical functional layer is interpreted to have a smaller projected area than that of the base layer if it is smaller than the area perceived when viewed from the top. At least a portion of the optical functional layer may be removed by the laser so as to have a smaller projected area than the base layer of the optical functional layer.
- the optical functional layer may be formed substantially on the entire surface of the substrate layer. The optical functional layer formed on the base layer can be patterned, for example, through the above processing.
- the processing can be performed using a laser, for example.
- the laser processing there is no lifting or the like at the cut portion of the processed optical functional layer.
- the surface resistance of the electrode layer, which is formed later can be maintained at an appropriate level and the height of the height is minimized. It can solve the problem that the short circuit of the device, or the electrical connection is not properly performed by providing a.
- the kind of base material layer in which an optical functional layer is formed is not specifically limited, A suitable well-known material can be used.
- a light transmissive substrate layer for example, a substrate layer having a transmittance of 50% or more with respect to light in the visible region may be used.
- a light transmissive base material layer a glass base material layer or a transparent polymer base material layer can be illustrated.
- base layers such as soda lime glass, barium / strontium-containing glass, lead glass, aluminosilicate glass, borosilicate glass, barium borosilicate glass, or quartz
- PC A base layer including a polycarbonate, an acrylic resin, polyethylene (poly (ethylene terephthatle)), PET (poly (ether sulfide)), PS (polysulfone), or the like
- the said base material layer may be a TFT substrate in which a driving TFT exists as needed.
- the base layer is not necessarily a light-transmissive base layer, and if necessary, a reflective layer using aluminum or the like is formed on the surface of the base layer. It is also possible to use a reflective substrate layer.
- An optical functional layer is formed on the substrate layer, for example, on the entire upper surface of the substrate layer.
- One example of the optical functional layer may be a light scattering layer.
- the term light scattering layer for example, scatters, refracts, or diffracts light incident to the layer, so that light incident from the electrode layer direction described later is trapped at an interface between any two layers of the base layer, the light scattering layer, and the electrode layer. It can mean any kind of layer which is formed so as to solve or alleviate the thing.
- the light scattering layer is not particularly limited as long as the light scattering layer is implemented to exhibit the above functions.
- the scattering layer may be a layer containing scattering particles.
- 1 exemplarily shows a form in which the scattering layer 102 including the scattering particles 1021 is formed on the substrate layer 101.
- the scattering layer 102 as shown in FIG. 1 may include scattering particles 1021 and a binder 1022.
- scattering particles may mean, for example, particles having a refractive index different from a binder forming a scattering layer or a flat layer described later, and having a suitable size and capable of scattering incident light. Such particles may have a refractive index of 1.0 to 3.5, for example, 1.0 to 2.0 or 1.2 to 1.8 or 2.1 to 3.5 or 2.2 to 3.0, and an average particle diameter of 50 nm to 20,000 nm or 100 nm to 5,000. Particles on the order of nm can be exemplified.
- the scattering particles may have a shape such as spherical, elliptical, polyhedron or amorphous, but the shape is not particularly limited.
- the scattering particles for example, organic materials such as polystyrene or derivatives thereof, acrylic resins or derivatives thereof, silicone resins or derivatives thereof, or novolak resins or derivatives thereof, or silica, alumina, titanium oxide or zirconium oxide Particles comprising an inorganic material can be exemplified.
- the scattering particles may be formed of only one of the above materials, or two or more of the above materials, and may be formed of particles in the form of core / cell or hollow particles, if necessary. .
- the scattering layer may further include a binder for holding the scattering particles.
- a binder for holding the scattering particles.
- the binder for example, as a material capable of holding the scattering particles, another material adjacent thereto, for example, a material having a refractive index equivalent to that of the substrate layer can be used.
- binder for example, various organic binders, inorganic binders or organic-inorganic binders known in the art can be used. If necessary, a binder having a refractive index of at least about 1.4 or at least about 1.45 may be used. The upper limit of the refractive index of the binder may be selected in an appropriate range in consideration of the refractive index of the particles to be blended together. In consideration of the lifetime of the device, an inorganic or organic-inorganic binder having excellent heat resistance and chemical resistance may be used, but an organic binder may also be used when necessary.
- binder for example, polyimide, cardo resin having a fluorene ring, urethane, epoxide, polyester or acrylate-based thermal or photocurable monomeric, oligomeric or polymeric organic
- an inorganic material such as silicon oxide, silicon nitride, silicon oxynitride or polysiloxane, or an organic-inorganic composite material can be used.
- polysiloxane polyamic acid or polyimide
- the polysiloxane may be formed by polycondensing a condensable silane compound or a siloxane oligomer, and the like may form a matrix based on a bond between silicon and oxygen (Si—O).
- condensation conditions are controlled to form a binder matrix based on siloxane bonds (Si-O) only, or a matrix in which some organic groups such as alkyl groups or condensable functional groups such as alkoxy groups remain. Formation is also possible.
- the polyamic acid or polyimide binder for example, a binder having a refractive index of about 1.5 or more, about 1.6 or more, about 1.65 or more, or about 1.7 or more can be used for light having a wavelength of 633 nm.
- Such high refractive polyamic acid or polyimide can be produced using, for example, a monomer into which a halogen atom, a sulfur atom or a phosphorus atom other than fluorine is introduced.
- a polyamic acid capable of improving the dispersion stability of the particles by having a site capable of bonding with the particles, such as a carboxyl group can be used.
- the compound containing the repeating unit of following General formula (1) can be used, for example.
- n is a positive number.
- the repeating unit may be optionally substituted by one or more substituents.
- substituents the functional group containing a halogen atom, such as a halogen atom other than fluorine, a phenyl group, a benzyl group, a naphthyl group, or a thiophenyl group, a sulfur atom, a phosphorus atom, etc. can be illustrated.
- the polyamic acid may be a homopolymer formed of only the repeating unit of Formula 1 or a copolymer including other units other than the repeating unit of Formula 1.
- the kind and ratio of another repeating unit can be suitably selected in the range which does not inhibit a desired refractive index, heat resistance, a light transmittance, etc., for example.
- repeating unit of Formula 1 include repeating units of the following Formula 2.
- n is a positive number.
- the polyamic acid may be, for example, about 10,000 to 100,000 or about 10,000 to 50,000, based on the standard polystyrene weight average molecular weight measured by gel permeation chromatography (GPC).
- the polyamic acid having a repeating unit of formula (1) also has a light transmittance of 80% or more, 85% or more or 90% or more in the visible light region, and is excellent in heat resistance.
- the scattering layer may also be, for example, a layer having an uneven structure.
- FIG. 2 is a diagram exemplarily illustrating a case in which a scattering layer 201 having an uneven structure is formed on the base layer 101. When the uneven structure of the scattering layer is appropriately adjusted, incident light may be scattered.
- the scattering layer of the concave-convex structure hardens the material in a state of being brought into contact with a mold capable of transferring the concave-convex structure of a desired shape in the process of applying and curing a thermal or photocurable material, or by etching. It can be formed through. Alternatively, it may be formed by blending particles having a suitable size and shape in the binder for forming the scattering layer. In this case, the particles need not necessarily be particles having a scattering function, but particles having a scattering function may be used.
- the scattering layer may be, for example, a material coated by a wet coating method, a method of applying heat or irradiation of light, or a method of curing the material by a sol-gel method, or a chemical vapor deposition (CVD) or PVD ( Physical Vapor Deposition) may be formed through a deposition method such as a microembossing method or the like.
- CVD chemical vapor deposition
- PVD Physical Vapor Deposition
- the optical functional layer may include the scattering layer and a flat layer formed on the scattering layer.
- the flat layer is not necessarily required.
- the flat layer may also be processed by laser to remove at least a part thereof.
- flat layer may refer to a layer capable of providing a flat surface on which an organic electronic device may be formed.
- the flat layer can provide a surface whose maximum height roughness is 1 ⁇ m or less or 0.5 ⁇ m.
- the maximum height roughness may mean a distance between a straight line passing through the highest point of the roughness curve and a straight line passing through the lowest point while being parallel to the center line in the roughness curve in the cut off, for example, 100 on a flat surface. It may be a numerical value measured for any area having an area of ⁇ m 2 .
- the flat layer may include, for example, a binder and particles.
- particles having a high refractive index and capable of increasing the refractive index of the flat layer can be formed by using a composition mixed with a binder.
- a flat layer may provide a surface on which an organic electronic device including an electrode layer and the like may be formed.
- the planarization layer may also implement excellent light extraction efficiency through interaction with the scattering layer described later in some cases.
- the flat layer may have a refractive index equivalent to that of an adjacent electrode layer, and may have a refractive index of about 1.8 to 3.5 or about 2.2 to 3.0, for example.
- the term refractive index may be a refractive index for light having a wavelength of 400 nm to 450 nm in a vacuum state.
- the binder for forming the flat layer a known material may be used without particular limitation.
- various organic binders, inorganic binders or organic-inorganic binders known in the art can be used. If necessary, a binder having a refractive index of at least about 1.4 or at least about 1.45 may be used.
- the binder for forming the flat layer an appropriate kind may be selected and used, for example, from the binder used for forming the scattering layer described above.
- the flat layer may include high refractive particles together with the binder.
- high refractive particles may mean, for example, particles having a refractive index of 1.5 or more, 2.0 or more, 2.5 or more, 2.6 or more, or 2.7 or more.
- the upper limit of the refractive index of the high refractive particles may be selected in a range that can satisfy the refractive index of the flat layer described above, for example, in consideration of the refractive index of the binder or the like blended together.
- the high refractive particles may have a smaller average particle diameter than, for example, the scattering particles.
- the high refractive particles may be, for example, about 1 nm to 100 nm, 10 nm to 90 nm, 10 nm to 80 nm, 10 nm to 70 nm, 10 nm to 60 nm, 10 nm to 50 nm or about 10 nm to 45 nm. It may have an average particle diameter of.
- alumina, aluminosilicate, titanium oxide or zirconium oxide and the like can be exemplified.
- rutile titanium oxide can be used, for example, as particles having a refractive index of 2.5 or more. The rutile titanium oxide has a higher refractive index than other particles, and thus a flat layer having a high refractive index can be realized even when the content of the high refractive particles is relatively small in the material for forming the flat layer.
- the ratio of the high refractive particles in the flat layer is not particularly limited and may be adjusted within a range in which the refractive index of the flat layer described above can be secured.
- the high refractive particles are flattened at a ratio of 300 parts by weight, 250 parts by weight or 200 parts by weight to 100 parts by weight of the binder. It can be included in the layer.
- the lower limit of the ratio of the particles may be, for example, 40 parts by weight or more, 60 parts by weight or more, 80 parts by weight or more, or 100 parts by weight or more.
- unit parts by weight means a ratio of weights between components, unless otherwise specified.
- the external quantum efficiency is increased, the penetration of gas or moisture from the outside is prevented, and the outgassing is reduced, thereby performing the performance. It is possible to provide a device with excellent reliability.
- the flat layer may be formed using a material in which a compound such as alkoxide or acylate of a metal such as zirconium, titanium or cerium is combined with a binder having a polar group such as a carboxyl group or a hydroxy group.
- a compound such as alkoxides or acylates may be condensed with the polar groups in the binder, and the high refractive index may be realized by including the metal in the binder.
- the alkoxide or acylate compound include titanium alkoxides such as tetra-n-butoxy titanium, tetraisopropoxy titanium, tetra-n-propoxy titanium or tetraethoxy titanium, titanium stearate and the like.
- Zirconium such as zirconium alkoxide, zirconium tributoxy stearate such as titanium acylate, titanium chelates, tetra-n-butoxy zirconium, tetra-n-propoxy zirconium, tetraisopropoxy zirconium or tetraethoxy zirconium Acylate, zirconium chelates, etc. can be illustrated.
- the flat layer may also be formed by a sol-gel coating method in which a metal alkoxide, such as titanium alkoxide or zirconium alkoxide, and a solvent, such as alcohol or water, are prepared to prepare a coating solution, and then applied and fired at an appropriate temperature.
- the thickness of the flat layer is not particularly limited and may be adjusted to an appropriate range as necessary.
- the optical functional layer is formed on the substrate layer, it is processed by a laser to remove at least a part thereof.
- a laser (arrow of FIG. 3) may be irradiated to the optical functional layer 301 formed on the entire surface of the base layer 101 to remove at least a portion of the optical functional layer.
- the irradiation of the laser toward the optical functional layer or the laminated structure 301 is schematically illustrated, but is not limited thereto.
- the laser may be irradiated toward the base layer 101.
- the shape of the optical functional layer remaining after removal is not limited to that illustrated in FIG. 3.
- the optical functional layer 301 after processing may remain in the edge part of the base material layer 101 as illustrated in FIG.
- the type of laser used in the above process is not particularly limited.
- any kind can be used as long as it has a proper output and can properly remove the laminated structure of the optical functional layer and the flat layer.
- the laser examples include, for example, a fiber diode laser, a solid laser such as ruby (ex.Cr 3+ : Al 2 O 3 ) or YAG (Nd 3+ : Y 3 Al 5 O 12 ), and the like.
- Gas glass, liquid laser, semiconductor laser or YLF (Nd 3+ : LiYF 4 ), such as phosphate glass, silicate glass, CO 2 laser or excimer, etc. may be used.
- Such lasers can be irradiated, for example, in the form of spot lasers or line beam lasers.
- the laser irradiation apparatus may be configured to include a focusing head 11, an optical fiber, a laser source, and the like for efficient irradiation.
- Irradiation conditions of the laser are not particularly limited as long as they are adjusted to allow proper processing.
- a laser having a wavelength in the range of about 200 nm to 400 nm or about 700 nm to 1500 nm may be irradiated with an output of about 1 W to 150 W or 10 W to 300 W, but is not limited thereto. .
- the form which processes an optical functional layer etc. using a laser is not specifically limited, It can be changed according to the objective.
- the processing may be performed so that a part of the optical functional layer or the like is removed so that the remaining range of the optical functional layer may overlap upon observation from the upper part with the light emitting layer of the organic layer subsequently formed.
- the optical functional layer can be processed in various patterns if necessary.
- the optical functional layer existing in the area corresponding to the terminal area formed on the outer substrate of the encapsulation area or the area where the adhesive is applied for the bonding with the encapsulation layer subsequently formed through laser processing or the completion of device fabrication may be removed. It may be.
- the method may further include forming an electrode layer on the processed optical functional layer to remove the substrate for an organic electronic device.
- the electrode layer may be formed to have a larger projection area than the processed optical functional layer. Further, the electrode layer can be formed both on top of the processed optical functional layer and on top of the base layer on which the optical functional layer is not formed.
- the optical functional layer may be processed in various forms as long as the projection area is smaller than that of the base layer and the projection area is smaller than that of the electrode layer.
- the optical functional layer 301 is formed only at a portion except the edge of the base layer 101 as shown in FIG. 4, or a part of the optical functional layer 103 at the edge of the base layer 101 as shown in FIG. 5. This may remain.
- FIG. 6 is a diagram illustrating a case where the substrate of FIG. 4 is observed from the top.
- the area A of the electrode layer 401 perceived when the substrate is viewed from above, that is, the projected area A of the electrode layer 401 is the projected area of the optical functional layer 301 below it. It is formed to be wider than (B).
- the ratio A / B of the projected area A of the electrode layer and the projected area B of the optical functional layer may be, for example, 1.04 or more, 1.06 or more, 1.08 or more, 1.1 or more, or 1.15 or more.
- the upper limit of the ratio A / B of the projected area is particularly limited because it is possible to implement a structure in which the optical functional layer described later is not exposed to the outside. It doesn't work.
- the upper limit of the ratio A / B may be, for example, about 2.0, about 1.5, about 1.4, about 1.3, or about 1.25.
- the electrode layer may be formed on an upper portion of the base layer on which the optical functional layer is not formed. The electrode layer may be formed in contact with the base layer, or may be formed including an additional element between the base layer and the base layer.
- the electrode layer 401 may be formed up to an area including a region deviating from all peripheral portions of the optical functional layer when viewed from above.
- at least one optical functional layer among the optical functional layers for example, an organic layer is formed on at least thereon as described below.
- the electrode layer may be formed up to an area including an area beyond all peripheral portions of the optical functional layer to be formed.
- the structure of FIG. 5 extends to the left and right sides, and the optical functionality present on the right and left edges.
- the structure can be altered such that the electrode layer is formed up to an area beyond all the perimeter of the layer.
- a structure in which the optical functional layer is not exposed to the outside may be formed by attaching an encapsulation structure described later to an electrode layer on which the optical functional layer is not formed.
- the optical functional layer can be prevented from becoming a penetration path of external moisture, oxygen, or the like, and the adhesive force between the encapsulation layer or the electrode and the substrate can be stably secured, and the surface hardness of the outer portion of the device can also be excellently maintained. .
- the electrode layer for example, a conventional hole injecting or electron injecting electrode layer used for fabricating an organic electronic device such as an organic light emitting device may be formed.
- the hole injection electrode layer can be formed using a material having a relatively high work function, for example, and can be formed using a transparent material if necessary.
- the hole injection electrode layer may comprise a metal, alloy, electrically conductive compound, or a mixture of two or more thereof, having a work function of about 4.0 eV or more.
- Such materials include metals such as gold, CuI, Indium Tin Oxide (ITO), Indium Zinc Oxide (IZO), Zinc Tin Oxide (ZTO), zinc oxide doped with aluminum or indium, magnesium indium oxide, nickel tungsten oxide, Oxide materials such as ZnO, SnO 2 or In 2 O 3 , metal nitrides such as gallium nitride, metal serenides such as zinc serenides, metal sulfides such as zinc sulfides, and the like.
- the transparent hole injection electrode layer can also be formed using a laminate of a metal thin film such as Au, Ag or Cu, and a high refractive transparent material such as ZnS, TiO 2 or ITO.
- the hole injection electrode layer may be formed by any means such as vapor deposition, sputtering, chemical vapor deposition, or electrochemical means.
- the electrode layer formed as needed may be patterned through a process using known photolithography, shadow mask, or the like.
- the film thickness of the hole injection electrode layer varies depending on light transmittance, surface resistance, and the like, but may be usually in the range of 500 nm or 10 nm to 200 nm.
- the electron injection transparent electrode layer may be formed using, for example, a transparent material having a relatively small work function.
- an electron injection transparent electrode layer may be formed by using an appropriate material among materials used for forming the hole injection electrode layer. It may be formed, but is not limited thereto.
- the electron injection electrode layer can also be formed using, for example, a vapor deposition method or a sputtering method, and can be appropriately patterned if necessary.
- the electron injection electrode layer may be formed to an appropriate thickness as necessary.
- the present application also relates to a method for manufacturing an organic electronic device, for example, an organic light emitting device.
- An exemplary manufacturing method may include sequentially forming an organic layer including a light emitting layer and a second electrode layer on the prepared substrate, for example, on the optical functional layer or on the electrode layer described above. If necessary, that is, when the electrode layer is not previously formed on the substrate, the method may further include forming the first electrode layer on the substrate before forming the organic layer. In this case, as described above, the first electrode layer may be formed to have a larger projection area than the optical functional layer.
- substrate is not specifically limited.
- various functional materials for forming an organic light emitting element and a method of forming the same are known.
- the organic layer may include at least one light emitting layer.
- the organic layer may include a plurality of light emitting layers of two or more layers.
- the light emitting layers may have a structure divided by an intermediate electrode or a charge generating layer (CGL) having charge generation characteristics, but is not limited thereto.
- CGL charge generating layer
- the light emitting layer can be formed using, for example, various fluorescent or phosphorescent organic materials known in the art.
- Materials that can be used for the light emitting layer include tris (4-methyl-8-quinolinolate) aluminum (III) (tris (4-methyl-8-quinolinolate) aluminum (III)) (Alg3), 4-MAlq3 or Alq series materials such as Gaq3, C-545T (C 26 H 26 N 2 O 2 S), DSA-amine, TBSA, BTP, PAP-NPA, Spiro-FPA, Ph 3 Si (PhTDAOXD), PPCP (1, Cyclopenadiene derivatives such as 2,3,4,5-pentaphenyl-1,3-cyclopentadiene), DPVBi (4,4'-bis (2,2'-diphenylyinyl) -1,1'-biphenyl) , Distyryl benzene or its derivatives or DCJTB (4- (Dicyanomethylene) -2-tert-but
- the light emitting layer includes the material as a host, and further includes perylene, distyrylbiphenyl, DPT, quinacridone, rubrene, BTX, ABTX, DCJTB, and the like. It may have a host-dopant system including a dopant.
- the light emitting layer can be formed by appropriately adopting a kind showing light emission characteristics among the electron-accepting organic compound or electron donating organic compound described later.
- the organic layer may be formed in various structures further including other various functional layers known in the art, as long as it includes a light emitting layer.
- Examples of the layer that may be included in the organic layer may include an electron injection layer, a hole blocking layer, an electron transport layer, a hole transport layer, a hole injection layer, and the like.
- the electron injection layer or the electron transport layer may be formed using, for example, an electron accepting organic compound.
- an electron accepting organic compound any compound known without particular limitation may be used.
- organic compounds include polycyclic compounds such as p-terphenyl or quaterphenyl or derivatives thereof, naphthalene, tetratracene, pyrene, coronene, and coronene.
- Polycyclic hydrocarbon compounds or derivatives thereof such as chrysene, anthracene, diphenylanthracene, naphthacene or phenanthrene, phenanthroline, vasophenanthrol Heterocyclic compounds or derivatives thereof, such as lean (bathophenanthroline), phenanthridine, acridine (acridine), quinoline (quinoline), quinoxaline or phenazine (phenazine) may be exemplified.
- fluoroceine perylene, phthaloperylene, naphthaloperylene, naphthaloperylene, perynone, phthaloperinone, naphtharoferinone, diphenylbutadiene ( diphenylbutadiene, tetraphenylbutadiene, oxadiazole, ardazine, bisbenzoxazoline, bisstyryl, pyrazine, cyclopentadiene , Oxine, aminoquinoline, imine, diphenylethylene, vinylanthracene, diaminocarbazole, pyrane, thiopyrane, polymethine, mero Cyanine (merocyanine), quinacridone or rubrene, or derivatives thereof, JP-A-1988-295695, JP-A-1996-22557, JP-A-1996-81472, Japanese Patent Laid-Open Publication No.
- Metal chelate complex compounds disclosed in Japanese Patent Application Publication No. 017764 for example, tris (8-quinolinolato) aluminium, which is a metal chelated oxanoid compound, and bis (8-quinolin) Norato) magnesium, bis [benzo (f) -8-quinolinolato] zinc ⁇ bis [benzo (f) -8-quinolinolato] zinc ⁇ , bis (2-methyl-8-quinolinolato) aluminum, Tris (8-quinolinolato) indium, tris (5-methyl-8-quinolinolato) aluminum, 8-quinolinolatorium, tris (5-chloro- Metal complex having one or more 8-quinolinolato or derivatives thereof, such as 8-quinolinolato) gallium, bis (5-chloro-8-quinolinolato) calcium, as derivatives, Japanese Patent Application Laid-Open No.
- Fluorescent brighteners such as a benzooxazole compound, a benzothiazole compound or a benzoimidazole compound; 1,4-bis (2-methylstyryl) benzene, 1,4-bis (3-methylstyryl) benzene, 1,4-bis (4-methylstyryl) benzene, distyrylbenzene, 1,4- Bis (2-ethylstyryl) benzyl, 1,4-bis (3-ethylstyryl) benzene, 1,4-bis (2-methylstyryl) -2-methylbenzene or 1,4-bis (2- Distyrylbenzene compounds such as methylstyryl) -2-ethylbenzene and the like; 2,5-bis (4-methylstyryl) pyrazine, 2,5-bis (4-ethylstyryl) pyrazine, 2,5-bis [2- (1-naphthyl) vinyl
- Namin (silanamine) derivative disclosed in Japanese Patent Laid-Open No. 194-279322 or Japanese Patent Laid-Open No. 194-279323 Polyfunctional styryl compound, an oxadiazole derivative disclosed in Japanese Patent Application Laid-Open No. 194-107648 or Japanese Patent Application Laid-Open No. 194-092947, an anthracene compound disclosed in Japanese Patent Application Laid-Open No. 194-206865, Japanese Patent Oxynate derivative disclosed in Japanese Patent Application Laid-Open No. 194-145146, tetraphenylbutadiene compound disclosed in Japanese Patent Application Laid-Open No. 1992-96990, organic trifunctional compound disclosed in Japanese Patent Application Laid-Open No.
- the electron injection layer may be formed using, for example, a material such as LiF or CsF.
- the hole blocking layer is a layer capable of preventing the holes injected from the hole injecting electrode from passing through the light emitting layer and entering the electron injecting electrode to improve the lifespan and efficiency of the device. And an appropriate portion between the electron injection electrode and the electron injection electrode.
- the hole injection layer or hole transport layer may comprise, for example, an electron donating organic compound.
- the electron donating organic compound include N, N ', N'-tetraphenyl-4,4'-diaminophenyl, N, N'-diphenyl-N, N'-di (3-methylphenyl) -4, 4'-diaminobiphenyl, 2,2-bis (4-di-p-tolylaminophenyl) propane, N, N, N ', N'-tetra-p-tolyl-4,4'-diamino ratio Phenyl, bis (4-di-p-tolylaminophenyl) phenylmethane, N, N'-diphenyl-N, N'-di (4-methoxyphenyl) -4,4'-diaminobiphenyl, N , N, N ', N'-tetraphenyl-4,4'-diaminodiphenylether
- the hole injection layer or the hole transport layer may be formed by dispersing the organic compound in a polymer or using a polymer derived from the organic compound. Also, such as polyparaphenylene vinylene and derivatives thereof, so-called ⁇ -conjugated polymers, hole-transporting non-conjugated polymers such as poly (N-vinylcarbazole), or ⁇ conjugated polymers of polysilane may be used. have.
- the hole injection layer is formed by using electrically conductive polymers such as metal phthalocyanine such as copper phthalocyanine, nonmetal phthalocyanine, carbon film and polyaniline, or by reacting the aryl amine compound with Lewis acid using an oxidizing agent. You may.
- electrically conductive polymers such as metal phthalocyanine such as copper phthalocyanine, nonmetal phthalocyanine, carbon film and polyaniline, or by reacting the aryl amine compound with Lewis acid using an oxidizing agent. You may.
- organic layer for example, a light emitting layer, an electron injection or transport layer, a hole injection or transport layer, and a method of forming the same, are known. All can be applied.
- a second electrode layer may be formed.
- the second electrode layer may be formed of, for example, electron injection property when the first electrode layer is hole injection property, and may be formed of hole injection property if the first electrode layer is electron injection property.
- the method for forming the second electrode layer is not particularly limited and may be manufactured in a known conventional manner.
- the sealing structure can be formed after the formation of the second electrode layer.
- the encapsulation structure may be a protective structure to prevent foreign substances such as moisture or oxygen from flowing into the organic layer of the organic electronic device.
- the encapsulation structure may be, for example, a can such as a glass can or a metal can, or a film covering the entire surface of the organic layer.
- FIG. 7 shows a glass can or a metal can after sequentially forming an organic layer 701 and a second electrode layer 702 on a substrate including a base layer 101, an optical functional layer 301, and a first electrode layer 401.
- the form in which the encapsulation structure 703 of the can structure such as the like is formed is illustrated.
- the encapsulation structure 703 may be attached by, for example, an adhesive 704.
- the encapsulation structure may be attached to, for example, an electrode layer 401 in which the optical functional layer 301 does not exist below.
- the encapsulation structure 703 may be attached to the end of the substrate by an adhesive 704. In this way it is possible to maximize the protective effect through the encapsulation structure.
- the encapsulation structure may be, for example, a film covering the entire surface of the organic layer and the second electrode layer.
- 8 exemplarily shows a film-like encapsulation structure 801 covering the entire surface of the organic layer 701 and the second electrode layer 702.
- the encapsulation structure 801 in the form of a film covers the entire surface of the organic layer 701 and the second electrode layer 702 as shown in FIG. 8, while the base layer 101, the optical functional layer 301, and the electrode layer are covered.
- the substrate including the 401 and the upper second substrate 802 may be bonded to each other.
- the second substrate for example, a glass substrate, a metal substrate, a polymer film or a barrier layer may be exemplified.
- the encapsulation structure in the form of a film is formed by applying, curing, and curing a liquid material that is cured by heat or ultraviolet (UV) irradiation or the like, for example, an epoxy resin, or by using the epoxy resin or the like beforehand It can be formed by laminating the substrate and the upper substrate using an adhesive sheet prepared in the form.
- a liquid material that is cured by heat or ultraviolet (UV) irradiation or the like, for example, an epoxy resin, or by using the epoxy resin or the like beforehand
- UV ultraviolet
- the encapsulation structure may include a metal oxide such as calcium oxide, beryllium oxide, a metal halide such as calcium chloride, or a water adsorbent such as phosphorus pentoxide, or a getter material.
- the moisture adsorbent or getter material may be included, for example, inside the encapsulation structure in the form of a film, or may be present at a predetermined position of the encapsulation structure in the can structure.
- the encapsulation structure may further include a barrier film, a conductive film, or the like.
- the encapsulation structure may be attached to an upper portion of the first electrode layer on which the optical functional layer is not formed. Accordingly, it is possible to implement a sealing structure in which the optical functional layer is not exposed to the outside.
- the sealing structure may be, for example, by a sealing structure in which an entire surface of the optical functional layer is surrounded by the base layer, the electrode layer and / or the encapsulation structure, or is formed including the base layer, the electrode layer and / or the encapsulation structure. It may refer to a state in which it is surrounded and not exposed to the outside.
- the sealing structure includes the base layer, the electrode layer and the encapsulating structure as long as it is formed of only the base layer, the electrode layer and / or the encapsulating structure, or is formed so that the optical functional layer is not exposed to the outside. It may also be formed including a conductive material or an intermediate layer. For example, other elements may be present in a portion where the base layer 101 and the electrode layer 401 contact each other, or a portion where the first electrode layer 401 and the encapsulation structures 701 and 801 contact each other or other positions in FIG. 7 or 8. have. The other element may be a low moisture-permeable organic material, an inorganic material or an organic-inorganic composite material, an insulating layer or an auxiliary electrode.
- an organic electronic device such as an organic light emitting device to ensure excellent light extraction efficiency
- to block the penetration of moisture or air into the device to form a device having improved reliability A substrate or a method for producing the device can be provided.
- 1 and 2 exemplarily show the shape of an optical functional layer.
- FIG 3 is a view schematically showing a manufacturing process of a substrate for an organic electronic device.
- 4 to 6 exemplarily show a form in which an electrode layer is formed on an optical functional layer.
- FIG. 7 and 8 are schematic diagrams exemplarily illustrating an organic electronic device in which an encapsulation structure is formed.
- FIG. 9 is a diagram illustrating a light emission state with respect to Comparative Example 1.
- FIG. 10 is a view of the luminescent state of Example 1.
- a coating solution was prepared by sufficiently dispersing TiO 2 particles having an average particle diameter of about 200 nm in a siloxane binder (Si (OCH 3 ) 4 ) solution.
- the coating solution prepared on the glass substrate was applied to form a scattering layer.
- a siloxane binder titanium index of refraction of about 1.8
- a high refractive index filler titanium dioxide
- the flat layer and the scattering layer were patterned so that the width of the patterning was about 3 mm by laser irradiation, and the light extraction layer coated on the remaining region except the light emitting region was removed.
- the scattering layer and the flat layer were patterned in the horizontal direction using a laser, and then patterned in the vertical direction, and the scattering layer and the flat layer were processed to remain in a rectangular shape.
- An ITO transparent electrode is formed on the entire surface of the patterned substrate layer in a conventional manner to form a patterned optical functional layer (scattering layer and flat layer), for example, as shown in FIG.
- the organic layer and the metal electrode to be included were sequentially stacked.
- an encapsulation structure (glass scan) was attached to implement the device as shown in FIG.
- An organic light-emitting device was manufactured in the same manner as in Example 1, except that the laser processing was not performed.
- the emission state was photographed with respect to the organic electronic device manufactured in Example and Comparative Example 1. Then, after 500 hours in the 85 °C oven, the appearance of the device was again photographed.
- 9 is a result of observing the appearance of the organic electronic device according to the comparative example at (a) and the time point (b) after 500 hours.
- 10 is a result of observing the appearance after leaving the organic electronic device according to the embodiment for 500 hours in an 85 °C oven. Referring to FIG. 9, it can be seen that in the comparative example, after about 500 hours, a relatively dark emission area was increased, and the overall uniformity of emission was significantly reduced. In contrast, in the case of the embodiment, as shown in FIG. 10, it was confirmed that even after 500 hours, the darkened light emitting area was not many, and the light emission uniformity was maintained.
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Abstract
Description
Claims (15)
- 기재층상에 형성된 광학 기능성층을 상기 기재층에 비하여 작은 투영 면적을 가지도록 레이저로 가공하는 것을 포함하는 유기전자소자용 기판의 제조 방법.
- 제 1 항에 있어서, 광학 기능성층은 산란층인 유기전자소자용 기판의 제조 방법.
- 제 2 항에 있어서, 산란층은, 산란 입자를 포함하는 층인 유기전자소자용 기판의 제조 방법.
- 제 2 항에 있어서, 산란층은 요철 구조를 포함하는 층인 유기전자소자용 기판의 제조 방법.
- 제 1 항에 있어서, 광학 기능성층은, 습식 코팅, 졸겔, 증착 또는 마이크로엠보싱 방식으로 기재층에 형성되는 유기전자소자용 기판의 제조 방법.
- 제 1 항에 있어서, 광학 기능성층은 산란층 및 그 산란층 상에 형성되어 있는 평탄층을 포함하는 유기전자소자용 기판의 제조 방법.
- 제 1 항에 있어서, 레이저를 광학 기능성층 또는 기재층을 향하여 조사하여 가공을 수행하는 유기전자소자용 기판의 제조 방법.
- 제 1 항에 있어서, 스팟 레이저 또는 라인 빔 레이저를 조사하여 가공을 수행하는 유기전자소자용 기판의 제조 방법.
- 제 1 항에 있어서, 가공된 광학 기능성층상에 상기 광학 기능성층에 비하여 넓은 투영 면적을 가지도록 전극층을 형성하는 것을 추가로 포함하는 유기전자소자용 기판의 제조 방법.
- 제 9 항에 있어서, 전극층의 투영 면적(A)과 광학 기능성층의 투영 면적(B)의 비율(A/B)이 1.04 이상이 되도록 전극층을 형성하는 유기전자소자용 기판의 제조 방법.
- 제 1 항에서 형성된 기판의 광학 기능성층상에 발광층을 포함하는 유기층 및 제 2 전극층을 순차 형성하는 것을 포함하는 유기전자소자의 제조 방법.
- 제 11 항에 있어서, 기판상에 유기층을 형성하기 전에 광학 기능성층에 비하여 넓은 투영 면적을 가지는 제 1 전극층을 형성하는 것을 추가로 포함하는 유기전자소자의 제조 방법.
- 제 12 항에 있어서, 제 1 전극층의 투영 면적(A)과 광학 기능성층의 투영 면적(B)의 비율(A/B)이 1.04 이상이 되도록 제 1 전극층을 형성하는 유기전자소자의 제조 방법.
- 제 12 항에 있어서, 제 2 전극층을 형성한 후에 봉지 구조를 형성하는 것을 추가로 포함하는 유기전자소자의 제조방법.
- 제 14 항에 있어서, 봉지 구조를 기재층 상에 형성되어 있고, 하부에 광학 기능성층이 형성되어 있지 않은 제 1 전극층에 접하도록 형성하는 유기전자소자의 제조방법.
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JP2015501589A JP5981018B2 (ja) | 2012-03-23 | 2013-03-25 | 有機電子素子の製造方法 |
EP13763668.4A EP2830119B1 (en) | 2012-03-23 | 2013-03-25 | Method for manufacturing an organic electronic device |
US14/492,951 US9666828B2 (en) | 2012-03-23 | 2014-09-22 | Method for producing a substrate for organic electronic devices |
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