WO2014084699A1 - 유기전자소자용 기판 - Google Patents
유기전자소자용 기판 Download PDFInfo
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- WO2014084699A1 WO2014084699A1 PCT/KR2013/011098 KR2013011098W WO2014084699A1 WO 2014084699 A1 WO2014084699 A1 WO 2014084699A1 KR 2013011098 W KR2013011098 W KR 2013011098W WO 2014084699 A1 WO2014084699 A1 WO 2014084699A1
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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
- H10K77/111—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
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/80—Constructional details
- H10K59/875—Arrangements for extracting light from the devices
- H10K59/877—Arrangements for extracting light from the devices comprising scattering means
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
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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
- 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
- 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
- H10K2102/00—Constructional details relating to the organic devices covered by this subclass
- H10K2102/301—Details of OLEDs
- H10K2102/311—Flexible OLED
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- 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
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- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/10—Methods of surface bonding and/or assembly therefor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24355—Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31551—Of polyamidoester [polyurethane, polyisocyanate, polycarbamate, etc.]
- Y10T428/31623—Next to polyamide or polyimide
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31652—Of asbestos
- Y10T428/31663—As siloxane, silicone or silane
Definitions
- the present application relates to a substrate for an organic electronic device, an organic electronic device, a method for manufacturing the substrate or the device, a light source for a display, and a lighting device.
- An organic electronic device includes, for example, at least one layer of an organic material capable of conducting current as disclosed in Patent Document 1 (Japanese Patent Laid-Open No. 1996-176293). It is an element to include.
- the organic electronic device includes an organic light emitting device (0LED), an organic solar cell, an organic photoconductor (0PC), an organic transistor, and the like.
- the organic light emitting device which is a typical organic electronic device, typically includes a substrate, a first electrode charge, a valuable layer, and a second electrode layer sequentially.
- the first electrode layer may be formed of a transparent electrode layer
- the second electrode layer may be formed of a reflective electrode layer.
- the first electrode layer may be formed of a reflective electrode charge
- the second electrode layer may be formed of a transparent electrode layer. Electrons and holes injected by the electrode layer may be recombined in the emission layer existing in the organic 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.
- organic layers and typically glass substrates have a refractive index of approximately 2.0, 1.8 and 1.5, respectively.
- refractive index approximately 2.0, 1.8 and 1.5, respectively.
- the present application provides a substrate for an organic electronic device, an organic electronic device, a method of manufacturing the substrate or the device, a light source, and a lighting device.
- An exemplary organic electronic device substrate includes a first polymer base layer, an optical functional layer, and a high refractive layer.
- the optical functional layer and the high refractive layer may be sequentially stacked on the first polymer base layer, and thus the optical functional layer may be present between the first polymer base layer and the high refractive layer.
- FIG. 1 shows an exemplary substrate 1 for an organic electronic device comprising a structure in which an optical functional layer 102 and a high refractive layer 1023 are sequentially formed on a first polymer base layer 101.
- the substrate for an organic electronic device may be a structure in which the structure is repeated, for example, a first polymer base layer, an optical functional layer, a high refractive layer, a first polymer base layer, an optical functional layer and It may be a structure in which the high refractive layers are sequentially stacked.
- an appropriate polymer base layer may be used without particular limitation.
- a light transmissive polymer substrate layer for example, a polymer substrate layer having a transmittance of 50% or more for light in the visible region may be used.
- the high molecular substrate layer may be a TFT substrate having a driving TFT.
- the polymer base layer does not necessarily need to be a light transmissive base layer. If necessary, a reflective layer using aluminum or the like may be formed on the surface of the polymer substrate layer.
- the first polymer base layer for example, a polymer base layer 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.
- the term refractive index may refer to a refractive index for light having a wavelength of 633 nm.
- the first polymer base layer examples include base worms including polyamic acid, polyimide, polyethylene naphthalate, polyether ether ketone, polycarbonate, polyethylene terephthalate, polyether sulfide, polysulfone, acrylic resin, or the like. It may be, but is not limited to such.
- the first polymer base worm may be a base worm including polyimide.
- the substrate layer comprising the polyimide has a refractive index of, for example, about 1.5 or more, about 1.6 or more, about 1.65 or more, or about about 633 nm of light.
- Such high refractive polyimide can be produced using, for example, a monomer into which a halogen atom other than fluorine, a sulfur atom or a phosphorus atom is introduced.
- a polyimide 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 polyamic acid for light having a wavelength of 633 nm may be used.
- the polyamic acid there may be used a polyamic acid capable of improving the dispersion stability of the particles because there is a site capable of bonding with the particles, such as carboxyl groups.
- the compound containing the repeating unit of following General formula (1) can be used, for example.
- N in Formula 1 may be a positive number, for example, one or more positive numbers.
- the repeating unit may be optionally substituted with one or more substituents.
- substituents include a functional group including a halogen atom other than fluorine, a phenyl group, a benzyl group, a naphthyl group or a thiophenyl group, or a halogen atom such as a sulfur atom or a phosphorus atom.
- the polyamic acid may be a homopolymer formed by only the repeating unit of Formula 1, or may be a block or random 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 target refractive index, heat resistance, light transmittance, etc., for example.
- repeating unit of Formula 1 may include a repeating unit of Formula 2 below.
- N in the formula (2) may be a positive number, for example, a positive number of one or more.
- the polyamic acid may be, for example, about 10,000 to 100,000 or about 10,000 to 50,000 in terms of weight average molecular weight in terms of standard polystyrene measured by GPCXGel Permeation Chromatograph.
- Polyamic acid having a repeating unit of formula (1) also has a light transmittance of 80% or more, 85% subphase or 90% or more in the visible light region, and has excellent heat resistance.
- An optical functional layer may be positioned on the first polymer substrate layer on the substrate.
- the optical functional layer may have, for example, 10% to 50%, 20% to 40% haze or
- Optical functional layers of 25% to 35% can be used.
- the method of measuring such haze is not particularly limited and can be measured under the JIS K 7105 standard using a general hazemeter, for example, HM-150. If the haze of the optical functional layer shows the above range, the light transmitted from the organic layer can be properly scattered, refracted or diffracted, so that the total reflection phenomenon at the interface between any two layers of the organic layer, the optical functional layer and the base layer is prevented. Can be eliminated or mitigated.
- the optical functional layer may be, for example, a light scattering layer.
- the term “light scattering layer” may refer to any kind of layer that is formed to scatter, refractize, or diffract light incident on the layer.
- the implementation form of the light scattering layer is not particularly limited as long as the above function is realized.
- the light scattering layer can be, for example, a layer comprising a matrix material and scattering regions.
- 2 exemplarily shows a form in which the base layer 101 is formed with an exemplary light scattering layer comprising a scattering region 1012 formed of scattering particles and a matrix material 1021.
- the term “scattering region” has a refractive index different from that of a surrounding material such as, for example, a matrix material or a high refractive layer described later, and has an appropriate size to scatter, refract, or diffract incident light. Mean area Can be.
- the scattering region may be, for example, particles having a refractive index and a size as described below, or a black space.
- scattering regions can be formed using particles that are different from the surrounding material and have a higher or lower refractive index than the surrounding material.
- the index of refraction of the scattering particles may be a difference between the index of refraction of the surrounding material, for example, the matrix material and / or the high refractive layer, may be greater than 0.3 or greater than 0.3.
- the scattering particles may have a refractive index of about 1.0 to 3.5 or about 1.0 to 3.0.
- Refraction of the scattering particles means the refractive index measured for light of about 550 nm wavelength.
- the refractive index of the scattering particles may be, for example, 1.0 to 1.6 or 1.0 to 1.3.
- the refractive index of the scattering particles may be about 2.0 to 3.5 or about 2.2 to 3.0.
- the scattering particles for example, particles having an average particle diameter of 50 nm or more, 100 nm or more, 500 nm or more or 1,000 nm or more can be exemplified.
- the average particle diameter of the scattering particles may be, for example, 10,000 nm or less.
- the scattering region may also be formed by a space filled with air as an empty space having the above size.
- the scattering particles or regions may have a shape such as spherical shape, elliptical shape, polyhedron or amorphous shape, but the shape is not particularly limited.
- the scattering particles include 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 containing the same inorganic material and the like can be exemplified.
- the scattering particles may be formed of only one of the above materials or two or more of the above materials.
- hollow particles such as hollow silica, or particles having a core / cell structure may also be used.
- the light scattering layer may further include a matrix material for retaining scattering regions such as scattering particles.
- the matrix material may be formed using a material having a refractive index similar to that of another adjacent material, such as a substrate layer, or a material having a higher refractive index.
- the matrix material may be, for example, a cardio resin having a polyimide, a fluorene ring, a urethane, an epoxide, a polyester, or an acrylate-based thermal or photocurable monomeric, oligomeric or polymerized product.
- Magnetic organic materials, inorganic materials such as silicon oxide, silicon nitride, silicon oxynitride or polysiloxane, or organic-inorganic composite materials, and the like can be used.
- the matrix material may comprise polysiloxane, polyamic acid, polyamic acid or polyimide.
- the polysiloxane may be formed by, for example, polycondensing a condensable silane compound or a siloxane oligomer, and may form a matrix material based on the bond between silicon and oxygen (Si-0). have.
- the condensation conditions in the formation of the matrix material so that the polysiloxane is based only on the siloxane bonds (Si-0), or some condensable functional groups such as alkyl groups or alkoxy groups remain.
- the matrix material polyamic acid or polyimide may be used, and the content described in the first polymer base layer may be applied to the polyamic acid or polyimide in the same manner.
- the light scattering layer may be, for example, a layer having an uneven structure.
- 3 is a substrate layer
- incident light may be scattered.
- the light scattering layer having a concave-convex structure hardens the material in contact with a mold capable of transferring the concave-convex structure of a desired shape in the process of curing the heat or photocurable material, After forming a layer of the material to be formed in advance, it can be produced by forming an uneven structure through an etching process or the like. Alternatively, it may be formed by blending particles having a suitable size and shape into the binder for forming the light 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 light scattering insects coat the material by a wet coating method, apply a heat method or irradiate light, or cure the material by a sol-gel method, or CVD (Chemical Vapor Deposition).
- the present invention may be formed through a deposition method such as PVD (Physical Vapor Deposition) method, or nanoimprinting or micro-staining method, but is not limited thereto.
- the ⁇ 3i> light scattering ' layer may further comprise high refractive particles, if desired.
- the term “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, for example, in a range capable of satisfying the refractive index of the desired light scattering layer.
- the high refractive particles may, for example, have a smaller average particle diameter than the scattering particles.
- the high refractive particles may be, for example, 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 10 nm to 45 nm or so. It may have an average particle diameter of.
- alumina, Aluminosilicates, titanium oxide or zirconium oxide and the like can be exemplified.
- rutile titanium oxide can be used as the particles having a refractive index of 2.5 or more.
- Titanium oxide of the rutile type has a higher refractive index than the other particles, and thus it is possible to adjust the desired refractive furnace to a relatively small ratio.
- the refractive index of the high refractive particles may be a refractive index measured for light of 550 nm wavelength.
- the thickness of the optical functional layer as described above is not particularly limited, but for example, may be formed to have a thickness of about 500 nm to 1.000 nm, about 500 nm to 900 nm, or about 500 nm to 800 nm. have.
- a high refractive layer may be positioned on the optical functional layer on the substrate.
- the high refractive index layer may mean, for example, a layer having a refractive index of 1.6 to 2.0, 2.0 to 1.8 or 1.85 to 1.90 for light having a wavelength of 633 nm.
- the high refractive index layer may provide a surface on which an electrode may be formed on the optical functional layer, and in the range of the refractive index, the high refractive layer may realize better light extraction efficiency through interaction with the optical functional layer. .
- the high refractive layer may be, for example, a flat layer.
- the flat layer may include high refractive particles together with the binder.
- a flat layer can be formed using a composition in which high refractive particles are mixed with a binder.
- Such a flat layer provides a surface on which an organic electronic device including an electrode layer and the like can be formed, and has light scattering properties to improve light extraction efficiency of the device.
- the flat layer may have a refractive index that is equal to or greater than the adjacent electrode layer, for example,
- the flat layer When the flat layer is formed on the light scattering layer of the above-mentioned concave-convex structure, the flat layer may be formed to have a refractive index different from that of the light scattering layer.
- the binder a known material can be used without particular limitation.
- various organic binders, inorganic binders or organic-inorganic binders known in the art may be used.
- Organic binders, inorganic binders or organic-inorganic binders having excellent heat resistance and chemical resistance can be selected and used in consideration of their excellent resistance to high temperature processes, photolithography processes or etching processes performed during the life of the device and the fabrication process.
- the binder may, for example, have a refractive index of at least about 1.4, at least about 1.45, at least about 1.5, at least about 1.6, at least about 1.65, or at least about 1.7.
- the upper limit of the refractive index of the binder is determined in consideration of the refractive index of the particles to be blended together. It can be selected within a range that can be satisfied.
- the binder for example, the matrix material, epoxy resin, polysiloxane or polyimide described in the section of the light scattering layer may be exemplified.
- a high refractive binder or a low refractive binder can be used as the binder.
- the term "high refractive binder” means a binder having a refractive index of about 1.7 to 2.5 or about 1.7 to 2.0
- the term "low refractive binder” may mean a binder having a refractive index of about 1.4 or more and less than about 1.7.
- Such binders are variously known, and suitable binders may be selected and used from various kinds of binders described above or other known binders.
- the flat layer may further include high refractive particles.
- high refractive particles may mean, for example, particles having a refractive index of 1.8 or more, 2.0 or more, 2.2 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 capable of satisfying the refractive index of the flat layer, for example, in consideration of the refractive index of the binder and the like blended together.
- 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.
- the high refractive particles for example, 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 therefore can be adjusted to the desired refractive index at a relatively small ratio.
- the refraction of the high refractive particles may be the refraction measured for light of 550 nm wavelength or 633 nm.
- the flat layer may include high refractive particles having a refractive index of 1.8 or more and an average particle diameter of 50 nm or less for light having a wavelength of 633 nm.
- 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 300 parts by weight or less, 250 parts by weight or less, 200 parts by weight or less with respect to 100 parts by weight of the binder. It may be included in the flat layer in a proportion of 150 parts by weight or less or 120 parts by weight or less.
- the ratio of the high refractive 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 weight part means a ratio of weight between components, unless otherwise specified. Vine Furthermore, the ratio of the high refractive particles is maintained as described above, for example, to increase the external quantum efficiency when forming an organic electronic device, to prevent the ingress of gas or moisture from the outside, and to reduce the outgasing. In this way, a device having excellent performance and reliability can be provided.
- the flat layer may be, for example, a wet coating method using a coating liquid containing a binder and high refractive particles, a deposition method such as a sol-gel method or a CVDCChemical Vapor Deposition (PVD) method, or a PVD (Physical Vapor Deposition) method or a microembossing property. It may be formed through a method, but is not limited thereto.
- 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.
- Compounds such as an alkoxide or an acylate, condense condensation with the polar group in a binder, and a skeleton of a binder.
- the metal may be included in the high refractive index.
- the alkoxide or acylate compound include tetra-n-butoxy titanium, tetraisopropoxy titanium, tetra-n-propoxy titanium, tetra alkoxy titanium alkoxide, titanium stearate, and the like.
- Zirconium alkoxides, zirconium tribucystearates such as titanium acylate, titanium chelates, tetra-n-butoxyzirconium, tetra-n-propoxy zirconium, tetraisopropoxy zirconium or tetraespecial zirconium 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 coated and fired at an appropriate temperature. .
- a 2nd polymer base material layer can be illustrated, for example.
- the second polymer base layer for example, a polymer base layer 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.
- the term refractive index in the second polymer substrate layer may mean a refractive index with respect to light having a wavelength of 633 nm unless otherwise specified.
- the second polymer base layer includes, for example, polyamic acid, polyimide, polyethylene naphthalate, polyether ether ketone, polycarbonate, polyethylene terephthalate, polyether sulfide® polysulfone, acrylic resin, or the like.
- the substrate layer may be exemplified, but is not limited thereto.
- a layer including polyimide may be used, and the description described in the first polymer base layer may be equally applied.
- the second The thickness of the polymer base layer is not particularly limited, and may be formed thinner than the thickness of the first polymer base layer, for example, 10 or less.
- the high refractive layer may be a planarization layer or a second layer as described above.
- It may be a structure in which the polymer base layer is formed alone, or may be a structure in which the planarization layer and the second polymer base layer are laminated.
- the substrate for an organic electronic device may further include a carrier substrate.
- a surface opposite to the optical functional layer of the first polymer substrate layer may be in contact with the carrier substrate. That is, the organic electronic device substrate may have a structure in which a carrier substrate, a first polymer substrate layer, an optical functional layer, and a high refractive layer are sequentially stacked.
- the carrier substrate may use, for example, a glass substrate or a rigid substrate.
- a glass substrate there is no restriction
- the carrier substrate may be formed so as to be detachable from the first polymer substrate layer, as described in the method of manufacturing an organ for an organic electronic device described below.
- the present application also relates to an organic electronic device comprising the substrate for an organic electronic device described above.
- the organic electronic device includes a substrate for an organic electronic device described above; And an electrode layer formed on the high refractive layer of the substrate; It may include a functional organic layer formed on the first electrode and an electrode layer formed on the functional organic layer.
- the electrode layer formed on the substrate for an organic electronic device may be referred to as a first electrode layer
- the electrode layer formed on the functional organic layer may be referred to as a second electrode layer.
- the organic layer may include at least a light emitting layer.
- a light emitting device in which light generated in the light emitting layer of the organic layer is radiated to the base layer side through the optical functional layer may be implemented.
- the organic electronic device may be an organic light emitting device (0LED).
- the organic electronic device may have a structure in which an organic layer including at least a light emitting layer is interposed between the hole injection electrode layer and the electron injection electrode layer.
- the second electrode layer is an electron.
- the electrode layer is the injection electrode layer, and the electrode layer included in the substrate is the electron injection electrode layer, the second electrode layer may be a hole injection electrode layer.
- the organic layer existing between the electron and hole injection electrode layers may include at least one light emitting layer.
- the organic layer may include a plurality of light emitting layers of two or more layers. When two or more light emitting layers are included, the light emitting layers may have a structure divided by an intermediate electrode layer or a charge generating layer (CGL) having charge generation characteristics.
- CGL charge generating layer
- the light emitting layer can be formed using, for example, various fluorescent or phosphorescent organic materials known in the art.
- Examples of the material of the light emitting layer include tris (4-methyl-8-quinolinolate) aluminum (ni) (tris (4-methyl-8-quinolinolate) aluminum (III)) (Alg3), 4-MAlq3 or Gaq3.
- the light emitting layer includes the material as a host, and also includes perylene, distyrylbiphenyl, DPT, quinacridone, rubrene, ⁇ , ⁇ , or DCJTB. It may have a host-dopant system that includes a dopant.
- the light emitting layer can also be formed by appropriately adopting a kind exhibiting luminescence properties in an electron-accepting organic compound or an 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 is, for example, an electron accepting organic compound
- organic compounds include polycyclic compounds such as P-terphenyl or quaterphenyl, or derivatives thereof, naphtha lene, tetratracene, pyrene, coronene ( polycyclic hydrocarbon compounds or derivatives thereof, such as coronene, chrysene, anthracene, diphenylanthracene, naphthacene or phenanthrene, or phenanthroline Heterocyclic compounds such as bathophenanthroline, phenanthridine, acridine, quinoline, quinolaine or quinoxaline or phenazine, or derivatives thereof This can be illustrated.
- Tris (8-quinolinolato) aluminum which is a metal chelate complex compound disclosed in Japanese Patent Laid-Open No. 1993-009470 or Japanese Patent Laid-Open No. 1993-0009764, for example, a metal chelated oxanoid compound.
- 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 ( Distyrylbenzene compounds such as 2-methylstyryl) -2-ethylbenzene and the like; 2,5-bis (4-methylstyryl) pyrazine, 2,5-bis (4-ethylstyryl) pyrazine,
- Dimethylidine compounds such as (2,2-diphenylvinyl) biphenyl, or derivatives thereof, and silanamine derivatives disclosed in Japanese Patent Application Laid-Open No. 1994-49079 or Japanese Patent Application Laid-Open No. 1994-293778 , A polyfunctional styryl compound disclosed in Japanese Patent Application Laid-Open No. 1994-279322 or Japanese Patent Application Laid-Open No. 1994-279323, etc., or disclosed in Japanese Patent Application Laid-Open No. 1994-107648 or Japanese Patent Application Laid-Open No. 1994-092947. Oxadiazole derivatives, anthracene compounds disclosed in Japanese Patent Application Laid-Open No.
- a phthaloperynone derivative disclosed in 88689 or the like, or a styrylamine derivative disclosed in JP-A-1990-250292 or the like can also be used as an electron-accepting organic compound included in the low refractive index layer.
- the electron injection layer may be formed using a material such as LiF or CsF, for example.
- the hole blocking layer is a layer which prevents the injected holes from entering the electron injecting electrode layer through the light emitting layer to improve the lifetime and efficiency of the device, and if necessary, the light emitting layer and the electron injecting electrode layer are made of a known material. It can be formed in a suitable portion in between.
- the hole injection layer or hole transport layer may include, for example, an electron donating organic compound.
- electron donating organic compounds 1 ⁇ ''-tetraphenyl-4,4'-diaminophenyl, 1 ⁇ '-diphenyl ⁇ '-di (3-methylphenyl) -4,4'-dia Minobiphenyl, 2,2-bis (4-di-p- rylaminophenyl) propane, ⁇ , ⁇ , ⁇ ', ⁇ '-tetra- ⁇ -ryll-4,4'-diaminobiphenyl, bis (4—di- ⁇ -ryllaminophenyl) phenylmethane, ⁇ , ⁇ '-diphenyl- ⁇ , ⁇ '-di (4-methoxyphenyl) -4 '4'-diaminobiphenyl, ⁇ , ⁇ , ⁇ ', ⁇ '-tetraphenyl-4, 4' ⁇ diaminodipheny
- the hole injection layer or the hole transport layer may be formed by dispersing an organic compound in a polymer or using a polymer derived from the organic compound.
- so-called ⁇ -conjugated polymers hole-transporting non-conjugated polymers of poly (N-vinylcarbazole), or ⁇ -conjugated polymers of polysilane may also be used, such as poly paraphenylene vinylene and derivatives thereof. Can be.
- 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 Lewis acid (Lewis) using the aryl amine compound as an oxidizing agent. acid).
- electrically conductive polymers such as metal phthalocyanine such as copper phthalocyanine, nonmetal phthalocyanine carbon film, and polyaniline, or Lewis acid (Lewis) using the aryl amine compound as an oxidizing agent. acid).
- the organic light emitting diode may include: (1) a form of a hole injection electrode layer / organic light emitting layer / electron injection electrode layer formed sequentially; (2) hole injection charge / hole injection layer / organic light emitting layer / electron injection electrode layer and shape; (3) the form of a hole injection electrode layer / organic light emitting layer / electron injection layer / electron injection electrode layer; (4) the form of a hole injection electrode layer / hole injection layer / organic light emitting layer / electron injection layer / electro-pneumatic electrode layer; (5) the form of a hole injection electrode layer / organic semiconductor layer / organic light emitting layer / electron injection electrode layer; (6) the form of a hole injection electrode layer / organic semiconductor layer / electron barrier layer / organic light emitting layer / electron injection electrode layer; (7) form of hole injection electrode layer / organic semiconductor layer / organic light emitting layer / adhesion enhancement layer / electron injection electrode layer; (8) the form of a hole injection electrode layer / hole injection layer / hole injection layer / hole
- the organic electronic device may further include an encapsulation structure.
- the encapsulation structure may be a protective structure to prevent foreign substances such as moisture or oxygen from entering 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. 4 shows a first electrode layer 401, an organic layer 402, and a second electrode layer formed on a substrate including a sequentially formed first polymer base layer 101, an optical functional layer 102, and a high refractive index layer 103.
- 403 shows a form protected by an encapsulation structure 404 of a can structure such as a glass can or a metal can.
- the encapsulation structure 404 may be attached to the substrate by an adhesive, for example.
- the encapsulation structure may be adhered to, for example, a high refractive index layer on which the first electrode layer does not exist in the lower portion of the substrate.
- the encapsulation structure 404 may be attached to the end of the substrate by the adhesive 405. 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 first electrode layer, the organic layer, and the second electrode layer.
- 5 exemplarily shows a sealing structure 501 in the form of a film covering the entire surface of the first electrode layer 401, the organic layer 402, and the second electrode layer 403.
- the film-like encapsulation structure 501 covers the entire surface of the first electrode layer 401, the organic layer 402, and the second electrode layer 403, as shown in FIG. 5, and the first polymer base layer 101.
- the substrate including the optical functional layer 102 and the high refractive layer 103 and the upper second substrate 502 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 a liquid material that is cured by heat or ultraviolet (UV) irradiation or the like, for example, an epoxy resin, and curing the film to form the film. It can be formed by laminating the substrate and the upper substrate using an adhesive sheet prepared in the form.
- UV ultraviolet
- the encapsulation structure may include a moisture adsorbent such as a metal oxide such as calcium oxide, a beryllium oxide, a metal halide such as calcium chloride or the like, or a getter ash, if necessary.
- the moisture adsorbent or getter material may be contained within, for example, a wedge structure in the form of a film, or may be present at a predetermined position in the encapsulation structure of the can structure.
- the encapsulation structure may further include a barrier film, a conductive film, or the like.
- the present application also relates to a substrate for an organic electronic device or a method for manufacturing the organic electronic device.
- a substrate for an organic electronic device may be manufactured by forming a first polymer substrate layer on a carrier substrate, forming an optical functional layer on the substrate layer, and forming a high refractive layer on the optical functional layer. Can be.
- An exemplary method of manufacturing a substrate for an organic electronic device includes forming a first polymer substrate layer on a carrier substrate.
- the carrier substrate may be, for example, a rigid substrate such as glass, but is not limited thereto.
- the carrier substrate for example, the contents described in the above-described items of the carrier substrate of the substrate for an organic electronic device may be applied in the same manner.
- the first polymer base layer may be formed, for example, by laminating a polymer film on a carrier substrate or coating a coating liquid containing a polymer.
- the carrier substrate may be such that the film or coating layer formed thereon is peelable.
- the first polymer base layer may be formed by, for example, a coating method as described above, for example, a wet coating method, a chemical vapor deposition (CVD), or a vapor deposition method such as PVD (Physical Vapor Deposition). .
- the polyimide base layer may be a coating liquid in which a polyimide film is laminated on a carrier substrate or a polyamic acid, which is a precursor thereof, is diluted in an appropriate solvent. After coating by coating it can be formed by reacting already.
- the polyimide film may be first laminated, and secondly, a coating solution containing polyamic acid may be applied thereon, followed by imidization reaction.
- the manufacturing method further includes forming an optical functional layer on the first polymer substrate layer after the first polymer substrate layer is formed.
- the optical functional layer can be formed so that the haze is 10% to 50%, 20% to 40% or 25% to 35%.
- the optical functional layer may be formed by, for example, a deposition method such as the above-described coating method, chemical vapor deposition (CVD), physical vapor deposition (PVD), or the like, or nanoimprinting or micro-tembossing method. .
- the manufacturing method further includes forming a high refractive layer on the optical functional layer after forming the optical functional layer.
- the high refractive layer may be formed such that the refractive index of the light of the wavelength of 633 nm is 1.6 to 2.0, 1.8 to 1.95 or 1.85 to 1,90.
- the high refractive layer is, for example, the coating method described above, It may be formed through a deposition method such as CVD CChemical Vapor Deposition (PV), Physical Vapor Deposition (PVD) or the like, or nanoimprinting or microembossing.
- a functional organic layer including a first electrode and a light emitting layer and a second electrode layer are sequentially formed on a substrate for an organic electronic device manufactured according to the method described above, It may further comprise forming an encapsulation structure.
- the carrier substrate used in the manufacture of the organic electronic device may be removed as needed after the completion of the process.
- the method of forming the first and second electrode layers is not particularly limited, and may be formed by any method such as known deposition, sputtering, chemical vapor deposition, or electrochemical method.
- the organic layer and the encapsulation structure can be formed in a known manner.
- the present application also relates to the use of the above-described organic electronic device, for example, an organic light emitting device.
- the organic light emitting device may be, for example, a light source for a display, for example, a backlight of a liquid crystal display (LCD), a light source, a light source such as various sensors, a printer, a copier, a vehicle instrument light source, a signal lamp, a display, and the like. It can be effectively applied to a light source, a display, a decoration, a light source of a display device, a planar light emitting body or the like.
- the present application relates to a lighting device including the organic light emitting device.
- the organic light emitting device is applied to the lighting device or other uses
- other components constituting the device or the like and a method of constituting the device are not particularly limited, and are known in the art as long as the organic light emitting device is used. Any material or method that may be used may be employed.
- the substrate for an organic electronic device of the present application can form an organic electronic device having excellent performance including, for example, a light extraction effect.
- 1 is a schematic diagram showing an exemplary substrate for an organic electronic device.
- FIGS 2 and 3 are views showing an example of an optical functional layer.
- An organic electronic device substrate and an organic electronic device were manufactured using glass as a carrier substrate.
- a coating liquid containing a polyamic acid synthesized by the synthetic method of the present invention is coated with a coating liquid having a molecular weight (Mw) of about 50,000 on the carrier substrate so that the thickness of the final high molecular layer is about to be imidized.
- Mw molecular weight
- the substrate layer having a refractive index of about 1.7 to 1.8 for light having a wavelength of 633 nm was formed.
- scattering phase particles titanium oxide particles having an average particle diameter of about 200 nm were blended into the sol-gel coating liquid containing tetramethoxy silane as the condensable silane, and sufficiently dispersed to prepare a coating solution for the light scattering layer.
- the coating solution was coated on the polymer substrate layer, and a sol-gel reaction was performed at 200 ° C. for about 30 minutes to form a light scattering layer having a thickness of about 300 nm.
- the light scattering layer formed was JIS. When the haze was evaluated by the 7105 method, the haze was measured at about 30%.
- the same high refractive index coating liquid containing high refractive index titanium oxide particles having an average particle diameter of about 10 nm and a refractive index of about 2.5 to the sol-gel coating liquid containing tetramethoxy silane was coated on the top of the light scattering layer.
- the sol-gel reaction was performed to form a flat layer having a refractive index of about 1.8 and a thickness of about 300 nm for light having a wavelength of 633 nm.
- a second polymer base layer made of polyimide was formed on the flat layer with a thickness of about 1 in the same manner as in the formation of the polymer base worm, thereby manufacturing a substrate for an organic electronic device.
- a hole injection electrode layer including an oxide was formed on the second polymer substrate layer. Subsequently, a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer, an electron injection layer, and an electron injection electrode layer were formed using a known material and method. Thereafter, the structure was encapsulated by glass scan to manufacture an organic light emitting device.
- first polymer substrate layer 102 optical functional layer
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Abstract
Description
Claims
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP13859139.1A EP2908358B1 (en) | 2012-11-30 | 2013-12-02 | Substrate for organic electronic element |
| US14/437,428 US9595684B2 (en) | 2012-11-30 | 2013-12-02 | Substrate for organic electronic device having high refractive layer on light scattering, optical functional layer |
| CN201380062589.1A CN105706263B (zh) | 2012-11-30 | 2013-12-02 | 用于有机电子器件的基板 |
| JP2015544004A JP6268614B2 (ja) | 2012-11-30 | 2013-12-02 | 有機電子素子用基板、有機電子装置、ディスプレイ用光源、照明器機、有機電子素子用基板の製造方法及び有機電子装置の製造方法 |
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| KR10-2012-0138343 | 2012-11-30 | ||
| KR20120138343 | 2012-11-30 | ||
| KR1020130148768A KR101587329B1 (ko) | 2012-11-30 | 2013-12-02 | 유기전자소자용 기판 |
| KR10-2013-0148768 | 2013-12-02 |
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| EP (1) | EP2908358B1 (ko) |
| JP (1) | JP6268614B2 (ko) |
| KR (1) | KR101587329B1 (ko) |
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| JP2016039135A (ja) * | 2014-08-06 | 2016-03-22 | 三菱化学株式会社 | フレキシブル基板及びそれを用いた有機el素子、有機el照明装置 |
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| CN104823298B (zh) * | 2012-11-30 | 2017-03-08 | 株式会社Lg化学 | 用于有机电子器件的基板 |
| CN106574059B (zh) | 2014-08-28 | 2019-05-31 | 株式会社Lg化学 | 塑料基板 |
| WO2016032281A1 (ko) * | 2014-08-28 | 2016-03-03 | 주식회사 엘지화학 | 플라스틱 기판 |
| KR101699275B1 (ko) * | 2014-09-11 | 2017-01-25 | 코닝정밀소재 주식회사 | 유기발광소자용 광추출 기판, 그 제조방법 및 이를 포함하는 유기발광소자 |
| WO2016039551A2 (ko) * | 2014-09-11 | 2016-03-17 | 코닝정밀소재 주식회사 | 유기발광소자용 광추출 기판, 그 제조방법 및 이를 포함하는 유기발광소자 |
| CN105957974B (zh) * | 2016-06-16 | 2017-11-17 | 武汉华星光电技术有限公司 | 一种有机发光二极管器件及显示装置 |
| CN106206980A (zh) * | 2016-07-15 | 2016-12-07 | 深圳市华星光电技术有限公司 | 一种提高光提取效率的oled器件其制备方法 |
| CN106654064B (zh) * | 2016-12-29 | 2019-02-12 | 深圳市华星光电技术有限公司 | 一种顶发射oled器件折射钝化层的制备方法及其应用 |
| JP7049547B2 (ja) | 2018-03-30 | 2022-04-07 | エルジー エナジー ソリューション リミテッド | フレキシブル二次電池用パッケージング及びそれを含むフレキシブル二次電池 |
| JP2020136145A (ja) * | 2019-02-22 | 2020-08-31 | キヤノン株式会社 | 有機el素子及び発光装置 |
| CN112310314A (zh) * | 2020-10-27 | 2021-02-02 | 广东聚华印刷显示技术有限公司 | 光取出模组、有机发光二极管和显示器件 |
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2013
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- 2013-12-02 WO PCT/KR2013/011098 patent/WO2014084699A1/ko not_active Ceased
- 2013-12-02 JP JP2015544004A patent/JP6268614B2/ja active Active
- 2013-12-02 KR KR1020130148768A patent/KR101587329B1/ko active Active
- 2013-12-02 EP EP13859139.1A patent/EP2908358B1/en active Active
- 2013-12-02 TW TW102144274A patent/TWI535088B/zh active
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Also Published As
| Publication number | Publication date |
|---|---|
| US20150287941A1 (en) | 2015-10-08 |
| JP2016506022A (ja) | 2016-02-25 |
| EP2908358A4 (en) | 2016-06-22 |
| KR20140070491A (ko) | 2014-06-10 |
| TWI535088B (zh) | 2016-05-21 |
| CN105706263B (zh) | 2017-11-24 |
| TW201436333A (zh) | 2014-09-16 |
| KR101587329B1 (ko) | 2016-01-20 |
| US9595684B2 (en) | 2017-03-14 |
| EP2908358B1 (en) | 2018-07-11 |
| JP6268614B2 (ja) | 2018-01-31 |
| CN105706263A (zh) | 2016-06-22 |
| EP2908358A1 (en) | 2015-08-19 |
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