WO2015047055A1 - 유기전자소자용 기판 - Google Patents
유기전자소자용 기판 Download PDFInfo
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- WO2015047055A1 WO2015047055A1 PCT/KR2014/009240 KR2014009240W WO2015047055A1 WO 2015047055 A1 WO2015047055 A1 WO 2015047055A1 KR 2014009240 W KR2014009240 W KR 2014009240W WO 2015047055 A1 WO2015047055 A1 WO 2015047055A1
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- 239000000758 substrate Substances 0.000 title claims abstract description 75
- -1 diamine compound Chemical class 0.000 claims description 50
- GTDPSWPPOUPBNX-UHFFFAOYSA-N ac1mqpva Chemical compound CC12C(=O)OC(=O)C1(C)C1(C)C2(C)C(=O)OC1=O GTDPSWPPOUPBNX-UHFFFAOYSA-N 0.000 claims description 30
- 229910010272 inorganic material Inorganic materials 0.000 claims description 17
- 239000011147 inorganic material Substances 0.000 claims description 17
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 16
- 239000011368 organic material Substances 0.000 claims description 15
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 238000009833 condensation Methods 0.000 claims description 7
- 230000005494 condensation Effects 0.000 claims description 7
- 229910044991 metal oxide Inorganic materials 0.000 claims description 7
- 150000004706 metal oxides Chemical class 0.000 claims description 7
- 125000006158 tetracarboxylic acid group Chemical group 0.000 claims description 7
- 125000003545 alkoxy group Chemical group 0.000 claims description 4
- 125000001188 haloalkyl group Chemical group 0.000 claims description 4
- 238000006358 imidation reaction Methods 0.000 claims description 4
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- 229910021641 deionized water Inorganic materials 0.000 claims description 3
- 125000005843 halogen group Chemical group 0.000 claims description 3
- XLJMAIOERFSOGZ-UHFFFAOYSA-M cyanate group Chemical group [O-]C#N XLJMAIOERFSOGZ-UHFFFAOYSA-M 0.000 claims description 2
- 125000004093 cyano group Chemical group *C#N 0.000 claims description 2
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 claims description 2
- ZMZDMBWJUHKJPS-UHFFFAOYSA-M thiocyanate group Chemical group [S-]C#N ZMZDMBWJUHKJPS-UHFFFAOYSA-M 0.000 claims 1
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- MWPLVEDNUUSJAV-UHFFFAOYSA-N anthracene Chemical compound C1=CC=CC2=CC3=CC=CC=C3C=C21 MWPLVEDNUUSJAV-UHFFFAOYSA-N 0.000 description 3
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- YJTKZCDBKVTVBY-UHFFFAOYSA-N 1,3-Diphenylbenzene Chemical group C1=CC=CC=C1C1=CC=CC(C=2C=CC=CC=2)=C1 YJTKZCDBKVTVBY-UHFFFAOYSA-N 0.000 description 2
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- KMKWGXGSGPYISJ-UHFFFAOYSA-N 4-[4-[2-[4-(4-aminophenoxy)phenyl]propan-2-yl]phenoxy]aniline Chemical compound C=1C=C(OC=2C=CC(N)=CC=2)C=CC=1C(C)(C)C(C=C1)=CC=C1OC1=CC=C(N)C=C1 KMKWGXGSGPYISJ-UHFFFAOYSA-N 0.000 description 2
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- GPRIERYVMZVKTC-UHFFFAOYSA-N p-quaterphenyl Chemical group C1=CC=CC=C1C1=CC=C(C=2C=CC(=CC=2)C=2C=CC=CC=2)C=C1 GPRIERYVMZVKTC-UHFFFAOYSA-N 0.000 description 2
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- DLYUQMMRRRQYAE-UHFFFAOYSA-N tetraphosphorus decaoxide Chemical compound O1P(O2)(=O)OP3(=O)OP1(=O)OP2(=O)O3 DLYUQMMRRRQYAE-UHFFFAOYSA-N 0.000 description 2
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- SXXNJJQVBPWGTP-UHFFFAOYSA-K tris[(4-methylquinolin-8-yl)oxy]alumane Chemical compound [Al+3].C1=CC=C2C(C)=CC=NC2=C1[O-].C1=CC=C2C(C)=CC=NC2=C1[O-].C1=CC=C2C(C)=CC=NC2=C1[O-] SXXNJJQVBPWGTP-UHFFFAOYSA-K 0.000 description 2
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- UWRZIZXBOLBCON-VOTSOKGWSA-N (e)-2-phenylethenamine Chemical class N\C=C\C1=CC=CC=C1 UWRZIZXBOLBCON-VOTSOKGWSA-N 0.000 description 1
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- 230000002194 synthesizing effect Effects 0.000 description 1
- YRGLXIVYESZPLQ-UHFFFAOYSA-I tantalum pentafluoride Chemical compound F[Ta](F)(F)(F)F YRGLXIVYESZPLQ-UHFFFAOYSA-I 0.000 description 1
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- IFLREYGFSNHWGE-UHFFFAOYSA-N tetracene Chemical compound C1=CC=CC2=CC3=CC4=CC=CC=C4C=C3C=C21 IFLREYGFSNHWGE-UHFFFAOYSA-N 0.000 description 1
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- HDUMBHAAKGUHAR-UHFFFAOYSA-J titanium(4+);disulfate Chemical compound [Ti+4].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O HDUMBHAAKGUHAR-UHFFFAOYSA-J 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
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- 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
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- YVTHLONGBIQYBO-UHFFFAOYSA-N zinc indium(3+) oxygen(2-) Chemical compound [O--].[Zn++].[In+3] YVTHLONGBIQYBO-UHFFFAOYSA-N 0.000 description 1
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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
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/84—Passivation; Containers; Encapsulations
- H10K50/844—Encapsulations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L101/00—Compositions of unspecified macromolecular compounds
- C08L101/02—Compositions of unspecified macromolecular compounds characterised by the presence of specified groups, e.g. terminal or pendant functional groups
- C08L101/06—Compositions of unspecified macromolecular compounds characterised by the presence of specified groups, e.g. terminal or pendant functional groups containing oxygen atoms
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L79/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen or carbon only, not provided for in groups C08L61/00 - C08L77/00
- C08L79/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
- C08L79/08—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
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Definitions
- the present application relates to a substrate for an organic electronic device and its use.
- An organic electronic device such as an organic light emitting device (OLED), an organic solar cell, an organic photoconductor (OPC), or an organic transistor includes an organic material layer vulnerable to external factors such as moisture.
- OLED organic light emitting device
- OPC organic photoconductor
- Patent Documents 1 to 4 propose structures that can protect an organic electronic device from foreign materials.
- a layer such as a barrier layer may be further included.
- the barrier layer is implemented with an inorganic material.
- the organic electronic device including the barrier layer has a structure in which a layer of an organic material and a layer of an inorganic material, such as a plastic substrate, are mixed.
- the inorganic layer and the organic layer have different thermal expansion characteristics, so that stresses may easily occur in the device, and such stress may occur even more when the flexible device is bent.
- Patent Document 1 US Patent No. 6,226,890
- Patent Document 2 US Patent No. 6,808,828
- Patent Document 3 Japanese Patent Application Laid-Open No. 2000-145627
- Patent Document 4 Japanese Laid-Open Patent No. 2001-252505
- one application of the present application is to provide a substrate for an organic electronic device that does not cause the above problem.
- the present application also includes an object of providing an organic electronic device having excellent durability and excellent properties such as light extraction efficiency by using the organic electronic device substrate as described above.
- An exemplary substrate for an organic electronic device may include a base film and an inorganic layer.
- In the inorganic layer may be formed on one surface of the base film.
- the base film and the inorganic layer exhibit excellent interfacial adhesion, and thus peeling due to a change in the surrounding environment or bending may be prevented.
- a specific base film is applied as the base film in order to provide a substrate exhibiting the excellent adhesion described above.
- the exemplary organic electronic device substrate may include a polyimide film, specifically, a polyimide film having a hydroxyl group introduced therein as a base film.
- the polyimide film having the hydroxyl group introduced therein may exhibit excellent interfacial adhesion with the inorganic layer, particularly an inorganic layer formed by the so-called ALD (atomic layer deposition) method (hereinafter, such a layer may be referred to as an ALD layer). have.
- ALD atomic layer deposition
- the polyimide into which the hydroxyl group was introduced can exhibit a contact angle of about 65 degrees or less.
- the base film may exhibit excellent adhesion with the inorganic layer.
- the contact angle of the base film in the present application may also be adjusted in the range of about 50 degrees or more or about 55 degrees or more.
- the polyimide is usually produced by condensation reaction of a tetracarboxylic dianhydride and a diamine compound to produce a polyamic acid, followed by imidization of the amic acid.
- the polyimide-based film of the present application may also include a condensation unit (ie, a polyamic acid unit) of the dianhydride and a diamine compound or an imidization unit (ie, a polyimide unit) thereof.
- the polyamic acid unit or polyimide unit may comprise one or more hydroxy groups in order to introduce hydroxy groups into the polyimide film.
- a hydroxy group may be substituted with at least one of the dianhydride and the diamine compound.
- the amount of hydroxy contained in the unit is not particularly limited so that the aforementioned contact angle can be secured.
- the unit is 2 to 10 mol, 2 to 9 mol, 2 to 8 mol, 2 to 7 mol, 2 to 6 mol, 2 to 5 mol, 2 to 4 mol of the hydroxyl group. Moles or 2 to 3 moles.
- the kind of dianhydride or diamine compound which forms the above polyimide, and the method of forming the unit using the same are not particularly limited.
- various dianhydrides or diamine compounds capable of synthesizing polyimides are known, and among these known components, the polyimide is selected by selecting a component having a desired hydroxy group or introducing a hydroxy group through an appropriate chemical reaction. Mid can be formed.
- aliphatic, cycloaliphatic, or aromatic tetracarboxylic dianhydride can be used, specifically, butane tetracarboxylic dianhydride, pentane tetracarboxylic dianhydride, hexane tetracarboxylic dianhydride, Cyclopentanetetracarboxylic dianhydride, bicyclopentanetetracarboxylic dianhydride, cyclopropanetetracarboxylic dianhydride, methylcyclohexanetetracarboxylic dianhydride, 3,3 ', 4,4'-benzophenone Tetracarboxylic dianhydride, 3,4,9,10-perylenetetracarboxylic dianhydride, 4,4'-sulfonyldiphthalic dihydride, 3,3 ', 4,4'-biphenyltetra Carboxylic acid dianhydride, 1,2,
- p-phenylenediamine is also used as an aromatic, aliphatic or alicyclic diamine compound.
- m-phenylenediamine 2,4,6-trimethyl-1,3-phenylenediamine, 2,3,5,6-tetramethyl-1,4-phenylenediamine, 4,4'-diaminodiphenylether, 3,4'-diaminodiphenylether, 3,3'-diaminodiphenylether, 4,4'-diaminodiphenylsulfide, 4,4'- Diamino Phenylmethane, 3,4'-diaminodiphenylmethane, 3,3'-diaminodiphenylmethane, 4,4'-methylene-bis (2-methylaniline), 4,4'-methylene-bis (2 , 6-dimethylaniline), 4,4'-methylene-bis (2,6-diethylaniline), 4,4'-methylene-bis (2-methylaniline),
- the polyimide-based film may be a condensation unit of the first tetracarboxylic dianhydride and the first diamine compound or an imidation unit thereof, or a condensation unit of the first and second tetracarboxylic dianhydride and the second diamine compound. It may include a second unit that is a drawing unit.
- the first and second units may be included in one polymer or may be included in a separate polymer and exist in the base film. That is, the base film may include a copolymer including the first unit and the second unit, or may include a polymer including the first unit and a polymer including the second unit. In addition, each of the first and second units may be a chain included in a predetermined polymer, or may itself be a polymer.
- the first and second units may have different physical properties for controlling at least one of haze and refractive index.
- the first and second units may have different refractive indices.
- the term refractive index in this application is a refractive index measured for light of 550 nm wavelength unless otherwise specified.
- the absolute value of the difference between the refractive indices of the first and second units may be 0.01 or more.
- the absolute value of the refractive index difference may be about 0.02 or more, about 0.03 or more, about 0.04 or more, about 0.05 or more, or about 0.06 or more.
- the absolute value of the difference in refractive index may be about 0.2 or less, about 0.15 or less, about 0.1 or less, or about 0.08 or less.
- the method of adjusting the refractive indices of the first and second units as described above is not particularly limited, and for example, a component constituting each unit may be selected and adjusted.
- the dianhydride and diamine compound forming the unit may be selected from aromatic, aliphatic or alicyclic dianhydride or diamine compounds, respectively, of the aromatic series known to impart high refractive index.
- relatively high refractive index units can be formed.
- the first and second units may have different polarities.
- one or both of the first and second units may comprise one or more polar functional groups.
- the absolute value of the difference between the number of moles of the polar functional group included in the first unit and the number of moles of the polar functional group included in the second unit may be 2 or more.
- the absolute value of the difference of the number of moles may be 10 or less, 8 or less, 6 or less or 4 or less in another example.
- the polar functional group may be substituted with the above dianhydride or diamine compound.
- the type of polar functional group that can be applied is not particularly limited, but is haloalkyl group, cyano group, nitro group, alkoxy group, cyanate group or thiocia substituted with halogen atom such as fluorine or chlorine, halogen such as fluorine or chlorine Nate group etc. are mentioned, A halogen atom or a haloalkyl group can be used from a viewpoint of application convenience.
- the haloalkyl group or alkoxy group may be a C1-20, C1-16, C1-12, C1-8 or C1-4 haloalkyl group or alkoxy group.
- the dianhydrides or diamine compounds substituted with such polar functional groups are variously known or can be synthesized in a conventional manner.
- the haze of the polyimide base film can be uniformly adjusted using the difference in refractive index or polarity of the first and second units. Mixtures of heterogeneous polyimides having such refractive indices or polarities can form opaque emulsions, and the opacity of such emulsions is believed to be transferred to the film. Therefore, the haze of the polyimide film can be adjusted by adjusting the refractive index or the polarity difference of the components forming the emulsion. In addition, the refractive index of the entire film can be easily adjusted by adjusting the ratio of the unit having the high refractive index in the above process. Thus, by providing the haze through the unit itself of the polymer rather than the method of applying the haze by using the conventional scattering particles, there is an advantage that the surface smoothness of the polymer can be maintained excellent with uniform haze.
- the ratio of the first and second units in the base film is not particularly limited and may be adjusted in consideration of the desired refractive index, haze, and the like.
- the base film has about 3 parts by weight to 100 parts by weight, 3 parts by weight to 80 parts by weight, 3 parts by weight to 60 parts by weight, 3 parts by weight to 40 parts by weight, and 3 parts by weight based on 100 parts by weight of the second unit.
- Part to 20 parts by weight or 3 to 15 parts by weight of the first unit may be included, but is not limited thereto.
- the kind of dianhydride or diamine compound which forms the polyimide containing the above-mentioned 1st and 2nd units, and the method of forming the said unit using the same are not restrict
- the above-mentioned dianhydride or An appropriate kind can be selected and applied from a diamine compound.
- the base film may be a light transmitting film.
- the term translucent film may refer to a film having a transmittance of 50% or more, 60% or more, 70% or more, or 80% or more, for example, light in any one of the visible regions or light in the entire visible region. .
- the base film when the base film is manufactured to have haze, the base film may be manufactured to have a haze in the range of 3% to 90%.
- Another lower limit of the haze may be, for example, about 5% or 10%.
- another upper limit of haze may be, for example, about 85%, 80%, 75%, 70%, 65%, 60%, 55%, 50%, 45%, 40%, 35%, or 30%.
- the method for causing the substrate to have haze is not particularly limited, and as described above, a method of adjusting the unit forming the polyimide or blending appropriate scattering particles into the base film can be used.
- the base film may have a coefficient of thermal expansion (CTE) in the range of about 5 ppm / ° C to 70 ppm / ° C. This range may be advantageous for preventing defects such as interlayer peeling that may occur in a structure in which an organic material layer and an inorganic material layer are mixed.
- CTE coefficient of thermal expansion
- the base film may have a glass transition temperature of about 200 ° C. or more.
- the glass transition temperature may be a glass transition temperature of the base film itself, or may be a glass transition temperature of the base film having a buffer layer described later. This range may be suitable for high temperature processes for deposition or patterning in the manufacture of organic electronic devices.
- the glass transition temperature may be at least about 210 ° C, at least about 220 ° C, at least about 230 ° C, at least about 240 ° C, or at least about 250 ° C.
- the upper limit of the glass transition temperature is not particularly limited, and may be, for example, about 400 ° C, 350 ° C, or about 300 ° C.
- the base film may have a surface roughness (RMS) within a range of about 0.1 nm to 5 nm.
- RMS surface roughness
- Such surface roughness may be with respect to the surface of the base film itself, or may be with respect to the surface of the buffer layer of the base film on which the buffer layer described later is formed.
- Such a range of surface roughness may be advantageous for improving the performance of the layer formed thereon.
- the surface roughness may, in other examples, be about 4 nm or less, about 3 nm or less, about 2.5 nm or less, or about 2 nm or less.
- the base film may have a refractive index of at least about 1.5, at least about 1.6, at least about 1.7, at least about 1.75 or at least about 1.8.
- the range of the refractive index of the base film in the organic light emitting device may be advantageous to increase the light efficiency of the device.
- the upper limit of the refractive index of the base film is not particularly limited, and may be, for example, about 2.0.
- the high refractive index of such a base film can be achieved by selecting and using a high refractive index such as an aromatic compound as the dianhydride or diamine compound, or by blending a component having a high refractive index in the film in the process of manufacturing the base film. .
- the thickness of the base film is not particularly limited and may be selected in an appropriate range in consideration of desired performance, for example, flexibility, light extraction efficiency or barrier properties.
- the thickness of the base film may be in the range of about 10 ⁇ m to about 50 ⁇ m or in the range of about 20 ⁇ m to about 30 ⁇ m.
- an inorganic layer exists on a base film.
- the term inorganic layer may be, for example, a layer containing 50% or more or 60% of inorganic material by weight.
- the inorganic layer may include only an inorganic material or may include other components such as an organic material if the inorganic material is included in the above range.
- the inorganic layer may be, for example, a barrier layer.
- the term barrier layer may be a layer capable of blocking, inhibiting or mitigating the penetration of external factors that may adversely affect the performance of devices such as organic layers such as moisture or moisture.
- the barrier layer may be a layer having a water vapor transmission rate (WVTR) of 10 ⁇ 4 g / m 2 / day or less.
- WVTR water vapor transmission rate
- WVTR water vapor transmission rate
- the barrier layer can be formed using a material known to be able to mitigate, prevent or inhibit the penetration of external factors such as moisture and oxygen.
- materials include metals such as In, Sn, Pb, Au, Cu, Ag, Al, Ti, and Ni; TiO, TiO 2 , Ti 3 O 3, Al 2 O 3 , MgO, SiO, SiO 2 , GeO, NiO, CaO, BaO, Fe 2 O 3 , Y2O 3 , ZrO 2 , Nb 2 O 3 and CeO 2 and Metal oxides such as; Metal nitrides such as SiN; Metal oxynitrides such as SiON; Or metal fluorides such as MgF 2 , LiF, AlF 3, and CaF 2 , or other materials known as absorbent materials having an absorption rate of 1% or more, or moisture-proof materials having an absorption coefficient of 0.1% or less.
- the inorganic layer may be formed to have low crystallinity. This degree of crystallinity may contribute to the manufacture of a substrate having the above-mentioned interfacial adhesion.
- the inorganic layer has low crystallinity, for example, when the inorganic layer requires a function as a barrier layer, it is possible to effectively prevent the penetration of moisture and foreign substances through the interface of the crystal component present in the inorganic layer. .
- the method of forming an inorganic layer formed as described below to be an oxide layer such as a metal oxide a method of repeatedly forming a thin layer a plurality of times, and different materials of adjacent sub-layers in the plurality of times of repeated formation are different.
- the inorganic layer satisfying the above-mentioned crystallinity can be formed by adopting any one of a method of controlling and a material of the respective sublayers different from each other, and each sublayer being an oxide layer such as a metal oxide. Can be.
- the inorganic layer may be appropriate as small as possible the difference in refractive index with the base film. Such a case can contribute to the formation of a substrate having particularly excellent light extraction efficiency.
- the absolute value of the difference in refractive index between the inorganic layer and the base film may be about 1 or less, about 0.7 or less, about 0.5 or less, or about 0.3 or less. Therefore, when the base film has a high refractive index as described above, the inorganic film layer should have a refractive index equivalent to that of the same.
- the refractive index of the inorganic layer may be about 1.5 or more, about 1.6 or more, about 1.7 or more, or about 1.75 or more.
- the range of the refractive index of the base film may be advantageous to increase the light efficiency of the device.
- the upper limit of the refractive index of the inorganic layer is not particularly limited, and may be, for example, about 2.0.
- the thickness of the inorganic layer may be determined according to the effect according to the intended use, and the range is not particularly limited, but in one example, about 10 nm to 100 nm, 10 nm to 90 nm, 10 nm to 80 nm, 10 nm to It may be in the range of 70 nm, 10 nm to 60 nm, 10 nm to 50 nm or 20 nm to 50 nm.
- the inorganic layer may be a single layer or a multilayer structure, but may be required to have a multilayer structure to satisfy the crystallinity as described above.
- the multilayer structure may include a structure in which the same type or different types of inorganic layers are stacked. Forming the inorganic layer in a multilayered structure has the above-described interfacial adhesion and may contribute to forming the above-mentioned low crystalline inorganic layer. In addition, forming the inorganic layer in a multilayer structure may contribute to the formation of the inorganic layer having the aforementioned refractive index.
- the inorganic layer may include a laminated structure of at least a first sublayer and a second sublayer.
- the thicknesses of the first and second sublayers may be adjusted in consideration of interfacial adhesion, crystallinity, barrier property, or refractive index required for the inorganic layer.
- the thicknesses of the first and second sublayers can all be adjusted in the range of 7 nm or less, 6 nm or less, 5 nm or less, 4 nm or less, 3 nm or less, or 2 nm or less.
- the lower limit of the thickness of the sublayer is not particularly limited.
- the lower limit of the thickness of the sub layer may be set in an appropriate range in consideration of the desired thickness and the like, and may be adjusted, for example, in a range of about 0.1 nm or more.
- the thicknesses of all the sublayers included in the inorganic layer of the multilayer structure may be adjusted within the above range.
- the inorganic layer may not include sublayers whose thickness exceeds 10 nm, 9 nm, 8 nm, 7 nm, 6 nm or 5 nm.
- the number of sublayers included in the inorganic layer is not particularly limited. The above may be determined according to the thickness of the sub layer and the thickness of the desired inorganic layer.
- the inorganic layer may include 2 to 50 sublayers.
- the sub layer may include 4 or more, 6 or more, 8 or more, or 10 or more.
- the sub-layer may include 45 or less, 40 or less, 35 or less, 30 or less, 25 or less, 20 or less, or 15 or less.
- each sublayer may be the first or second sublayer, and may also include a third sublayer or more.
- the sublayer may be formed of various materials, but may be formed of oxides, nitrides, or oxynitrides of various metals or nonmetals in terms of contributing to interfacial adhesion, crystallinity, barrier properties, refractive index, and the like.
- the first and second sublayers may be oxide layers, nitride layers or oxynitride layers. If necessary, all the sub layers included in the inorganic layer may be formed of the oxide.
- the kind of oxide that can be used in this case is not particularly limited, and may be appropriately selected from oxides capable of forming the above-mentioned barrier layer.
- Sublayers in contact with each other among the sublayers may be formed of different materials to contribute to interfacial adhesion, crystallinity, barrier property, refractive index, and the like.
- the first and second sublayers may be formed of different materials, for example different oxides, nitrides or oxynitrides.
- the inorganic layer includes a third sublayer, a fourth sublayer or more sublayers as described above, it may be advantageous that the sublayers which are also in contact with each other are formed of different materials, for example, different oxides.
- the first sublayer may have a first refractive index
- the second sublayer may have a second refractive index different from the first refractive index.
- the absolute value of the difference between the first refractive index and the second refractive index may be, for example, 0.1 or more.
- the absolute value may be 0.2 or more, 0.3 or more, 0.4 or more, 0.5 or more or 0.6 or more.
- the absolute value may be in a range of 2 or less, 1.8 or less, 1.6 or less, 1.4 or less, or 1.2 or less in another example.
- each of the first and second refractive indices is not particularly limited as long as the range of the refractive indices is secured.
- the refractive index of the first sublayer is in the range of 1.4 to 1.9
- the refractive index of the second sublayer is 2.0 to May be in the range of 2.6.
- the first and second sub-layers as described above may be metal oxide layers, respectively.
- suitable materials for the first sublayer include Al 2 O 3 and the like, and suitable materials for the second sublayer include TiO 2 , but the final laminated structure has the aforementioned refractive indices, respectively. If it can have a barrier property, a variety of other materials can be applied in addition.
- the inorganic material layer or each sublayer can be formed through a known method, but it is advantageous to form the ALD (Atomic Layer Deposition) method from the viewpoint of securing interfacial adhesion.
- the ALD method includes, for example, alternately depositing a precursor such as an organic metal and a precursor such as water on a surface to be deposited, and in this process, monolayers of the precursors are alternately formed to react with each other to form an inorganic layer. This can be formed.
- the layer formed by the ALD method has a predetermined functional group, for example, the aforementioned hydroxyl group or the like in the base film, the functional group may react with the functional group in the formation process, and thus, the desired interfacial adhesion may be secured. .
- a method of forming an inorganic layer or a sub layer may include sputtering, pulsed laser deposition, electron beam evaporation, thermal evaporation, or laser molecular L-MBE.
- Chemical Vapor Deposition (PVD) or Metal Organic Chemical Vapor Deposition (MOCVD), Hybrid Vapor Phase Epitaxy (HVPE), Initiated Chemical Vapor Deposition (iCVD) or Plasma Enhanced Chemical Vapor Deposition (PECVD) Vapor Deposition may be exemplified. If necessary, the performance of the inorganic layer may be maximized by selecting an appropriate method according to the material used among the above methods.
- the substrate of the present application may include additional layers.
- the substrate of the present application may further include a buffer layer between the inorganic layer and the base film in order to achieve the interface adhesion between the inorganic layer and the base film described above.
- the buffer layer is not an essential configuration, and for example, the buffer layer may not be required if sufficient adhesion is achieved only by the hydroxyl group or the like introduced into the base film.
- the substrate of the present application may also include an electrode layer present on the inorganic layer as an additional layer.
- the electrode layer a hole injectable or electron injecting electrode layer commonly used in organic electronic devices may be used.
- the electrode layer may be a transparent electrode layer or a reflective electrode layer.
- the hole injection electrode layer may be formed using a material having a relatively high work function, for example, and may be formed using a transparent or reflective 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 electron injection electrode layer may be formed using, for example, a material having a relatively small work function.
- a material having a relatively small work function For example, an appropriate transparent or reflective material may be used among materials used for forming the hole injection electrode layer. It may be formed by, 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 thickness of the electrode layer may be formed to have a thickness of, for example, about 90 nm to 200 nm, 90 nm to 180 nm, or about 90 nm to 150 nm.
- the present application also relates to organic electronic devices.
- the organic electronic device includes a substrate for an organic electronic device described above; And an element region having a first electrode layer, an organic material layer, and a second electrode layer on the inorganic material layer of the substrate.
- the electrode layer may serve as the first electrode layer.
- the exemplary organic electronic device may include the substrate including the base film and the inorganic layer sequentially present in an upward direction, a first electrode layer, an organic layer, a second electrode layer, a second inorganic layer, and a cover film.
- Each of the layers may be directly stacked without another layer between adjacent layers, or may be stacked via another layer.
- the term upward direction means a direction from the first electrode layer to the second electrode layer unless otherwise specified
- the term downward direction refers to a direction from the second electrode layer toward the first electrode layer unless otherwise specified. it means.
- a region including all elements (except the first electrode layer) existing under the first electrode layer in the structure will be referred to as a substrate region, and the first electrode layer and the second electrode layer and between The region containing all the elements present is called an element region, and the region containing all elements (except the second electrode layer) present on top of the second electrode layer is called an upper region.
- the substrate region may include additional layers.
- a carrier substrate, a barrier film or an adhesive layer may be exemplified.
- a barrier film can be exemplified.
- a substrate film having a relatively low barrier property is used as compared with a rigid structure in which a substrate having excellent barrier property is used, such as a glass substrate, and thus, an additional barrier film is used, for example, to provide a barrier property. May be present at the bottom of
- the barrier film may be any one capable of ensuring appropriate barrier properties and light transmittance when necessary.
- the barrier film may be attached to the base film by, for example, an adhesive layer.
- the barrier film may be attached to a surface opposite to the surface on which the inorganic layer is formed.
- the term adhesive layer is a term encompassing not only a material commonly referred to as an adhesive but also a layer formed by using a material referred to as an adhesive or a material referred to as an adhesive.
- the material for forming the adhesive layer is not particularly limited, and for example, a known point / adhesive material such as an acrylic polymer, a silicone polymer, a rubber polymer, an ethylene polymer such as EVA (Ethylene vinyl acetate) polymer or a polyisobutylene (PIB) may be used. Can be used.
- moisture barrier material may be blended in the adhesive layer.
- the adhesive layer in which the moisture barrier material is blended herein may be referred to as a barrier adhesive layer.
- moisture barrier material may be used as a generic term for a component capable of absorbing or removing moisture or moisture introduced from the outside through a physical or chemical reaction.
- the specific kind of the moisture barrier material that can be blended into the adhesive layer is not particularly limited, and examples thereof include one kind or a mixture of two or more kinds of metal oxides, organometallic oxides, metal salts, or phosphorus pentoxide (P 2 O 5 ). .
- the metal oxide may include lithium oxide (Li 2 O), sodium oxide (Na 2 O), barium oxide (BaO), calcium oxide (CaO), magnesium oxide (MgO), and the like.
- Examples include lithium sulfate (Li 2 SO 4 ), sodium sulfate (Na 2 SO 4 ), calcium sulfate (CaSO 4 ), magnesium sulfate (MgSO 4 ), cobalt sulfate (CoSO 4 ), gallium sulfate (Ga 2 (SO 4 ) 3 ), sulfates such as titanium sulfate (Ti (SO 4 ) 2 ) or nickel sulfate (NiSO 4 ), etc., calcium chloride (CaCl 2 ), magnesium chloride (MgCl 2 ), strontium chloride (SrCl 2 ), yttrium chloride (YCl 3 ) , Copper chloride (CuCl 2 ), cesium fluoride (CsF), tantalum flu
- Appropriate scattering particles may be blended in the adhesive layer, whereby the adhesive layer itself may exhibit a suitable haze. Light extraction efficiency can be improved when the adhesive layer exhibits haze.
- the kind of scattering particles that can be blended into the adhesive layer is not particularly limited, and an appropriate kind may be selected and used from the scattering particles included in the scattering layer in consideration of the refractive index of the resin forming the adhesive layer.
- a carrier substrate that may be temporarily or permanently attached to the bottom of the base film.
- a rigid substrate such as a glass substrate may be applied to the carrier substrate.
- the substrate region may be formed in various structures.
- the substrate region may include a structure in which the inorganic layer and the base film are sequentially formed in a downward direction, a structure in which the above-described buffer layer or scattering layer is formed between the inorganic layer and the base film, and a lower portion of the base film.
- the carrier film or the barrier film may have a structure attached by an adhesive layer.
- the organic material layer exists between the first and second electrode layers.
- the organic material layer may include at least one or two light emitting units. In such a structure, light generated in the light emitting unit may be emitted to the transparent electrode layer through a process of being reflected by the reflective electrode layer.
- an intermediate electrode layer or a charge generating layer may be further present between the plurality of light emitting units for proper light emission. Therefore, the light emitting units 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 material constituting the light emitting unit is not particularly limited. Fluorescent or phosphorescent organic materials having various emission center wavelengths are known in the art, and an appropriate kind may be selected from these known materials to form the light emitting unit. Examples of the material of the light emitting unit include tris (4-methyl-8-quinolinolate) aluminum (III) (tris (4-methyl-8-quinolinolate) aluminum (III)) (Alg3), 4-MAlq3, Gaq3 and the like.
- the light emitting unit 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 as a dopant.
- the light emitting unit can also be formed by appropriately adopting a kind exhibiting light emission characteristics among the electron-accepting organic compound or electron donating organic compound described later.
- the organic material layer may be formed in various structures further including various other functional layers known in the art, as long as the light emitting unit includes a light emitting unit.
- the layer that may be included in the organic material layer 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 can 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 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) and the like.
- 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 injected holes from entering the electron injecting electrode layer through the light emitting unit and improving the life and efficiency of the device. If necessary, a light blocking unit and an electron It can be formed in an appropriate part between the granular electrode layers.
- 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 an organic compound in a polymer or using a polymer derived from the organic compound. Also, such as polyparaphenylenevinylene and derivatives thereof, hole transporting non-conjugated polymers such as ⁇ -conjugated polymers, poly (N-vinylcarbazole), or ⁇ -conjugated polymers of polysilane may also be used. Can be.
- the hole injection layer is formed by using electrically conductive polymers such as metal phthalocyanine such as copper phthalocyanine, non-metal phthalocyanine, carbon film and polyaniline, or by reacting the aryl amine compound with Lewis acid as an oxidizing agent. You may.
- electrically conductive polymers such as metal phthalocyanine such as copper phthalocyanine, non-metal phthalocyanine, carbon film and polyaniline, or by reacting the aryl amine compound with Lewis acid as an oxidizing agent. You may.
- the specific structure of the organic material layer is not particularly limited.
- various materials for forming a hole or electron injection electrode layer and an organic material layer for example, a light emitting unit, an electron injection or transport layer, a hole injection or transport layer, and a method of forming the same are known. All of these methods can be applied.
- the upper region of the organic electronic device may include an inorganic layer and a cover film sequentially formed in an upward direction.
- the inorganic layer included in the upper region may be referred to as a second inorganic layer
- the inorganic layer included in the substrate may be referred to as a first inorganic layer.
- the second inorganic material layer is present in order to block, suppress or mitigate the penetration of the foreign material to ensure durability, and the specific material and formation method may be similar to those mentioned in the item of the first inorganic material layer.
- the second inorganic material layer does not need to be formed to have a high refractive index like the first inorganic material layer.
- the cover film present on the upper portion of the second inorganic material layer may be a structure that protects the organic electronic device.
- a known barrier film, a metal sheet, a conductive film, or the like may be a laminate structure of two or more of the above.
- the cover film may be attached to the top of the second inorganic material layer through an adhesive layer, for example, the barrier adhesive layer described above.
- the present application also relates to the use of such organic electronic devices, for example organic light emitting devices.
- the organic light emitting device may be, 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, an indicator light, a display device, a planar light emitting body, and the like. It can be effectively applied to a light source, a display, a decoration or various lights.
- the present application relates to a lighting device including the organic light emitting device.
- the organic light emitting device When the organic light emitting device is applied to the lighting device or other uses, other components constituting the device or the like or 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 can be employed.
- the present application it is possible to provide a substrate capable of providing a device having excellent durability by preventing interlayer peeling and the like, which may occur due to internal stress, in a structure in which organic and inorganic materials are mixed.
- the present application also includes an object of using the substrate as described above to provide an organic electronic device excellent in durability and excellent in other required physical properties such as light extraction efficiency.
- 1 is a view showing the results of evaluating the moisture permeability of the substrate prepared in the embodiment.
- FIG. 2 is a view showing the results of measuring the moisture permeability of the substrate prepared in the comparative example.
- Polyamic acid solution was synthesized by condensation reaction of BPDA (3,3,4,4'-Biphenyltetracarboxylic dianhydride) and DADHB (1,3-Diamino-4,6-dihydroxybenzene) in the reactor.
- the solution is then spin coated onto a glass substrate to a thickness of about 20 ⁇ m and heated in an oven at a rate of about 2 ° C./min, followed by 15 minutes at 80 ° C., 30 minutes at 150 ° C. and 30 minutes and 350 ° at 220 ° C.
- the polyimide substrate (A) was synthesize
- Polyamic acid solution was synthesized by condensation reaction of BPDA (3,3 ', 4,4'-Biphenyltetracarboxylic dianhydride) and DAB (1,3-Diaminobenzene) in the reactor.
- the solution is then spin coated onto a glass substrate to a thickness of about 20 ⁇ m and heated in an oven at a rate of about 2 ° C./min, followed by 15 minutes at 80 ° C., 30 minutes at 150 ° C. and 30 minutes and 350 ° at 220 ° C.
- the polyimide substrate (A) was synthesize
- a barrier layer was formed on the polyimide substrate (A).
- the barrier layer is composed of a layer of Al 2 O 3 having a refractive index of about 1.6 to 1.8 when deposited alone by ALD (Atomic Layer Deposition) method and a TiO 2 having a refractive index of about 2.0 to 2.4 when deposited alone.
- the layers were alternately deposited to form a final refractive index of about 1.8.
- a layer of Al 2 O 3 was formed by alternating adsorption of a layer of trimethylaluminium and a water (H 2 O) layer as a precursor at a temperature of about 200 ° C.
- the layer of TiO 2 was also known as ALD. Formed by alternating adsorption of a layer of TiCl 4 and a layer of water (H 2 O) as precursors at a temperature of about 200 ° C. At the time of formation, the thicknesses of the layers of Al 2 O 3 and the layers of TiO 2 were in the range of about 2 nm to 5 nm, respectively, to finally form a barrier layer having a thickness of about 40 nm.
- a hole injectable transparent electrode layer, a hole transport layer, a first light emitting unit, an n-type organic semiconductor layer, a p-type organic semiconductor layer, and a light emission wavelength using a known material on the barrier layer are in the range of about 380 to 500 nm.
- the second light emitting unit, the hole block layer, the electron transport layer, the electron injection layer, and the electron injection reflective electrode layer in the range of about 500 to 700 nm are sequentially formed to form an element region, and the element region is encapsulated with an appropriate encapsulation material.
- the organic electronic device was manufactured. After leaving the prepared organic electronic device at a temperature of 85 ° C. and a relative humidity of 85% for about 500 hours, it was confirmed whether water permeated into the organic electronic device and the results are shown in FIG. 1. As seen from FIG. 1, according to the above method, water did not substantially penetrate into the organic electronic device.
- An organic electronic device was formed in the same manner as in Example 1 except that the polyimide substrate (B) formed on the glass substrate manufactured in Preparation Example 2 was used. After leaving the prepared organic electronic device at a temperature of 85 ° C. and a relative humidity of 85% for about 500 hours, it was confirmed whether water permeated into the organic electronic device and the results are shown in FIG. 2. As can be seen from FIG. 2, according to the above scheme, a moisture penetration region occurred in a wide range in the device.
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Abstract
Description
Claims (18)
- 테트라카복실산 이무수물 및 디아민 화합물의 축합 단위 또는 그 이미드화 단위를 포함하고, 상기 이무수물 또는 디아민 화합물은 히드록시기를 가지는 기재 필름; 및 상기 기재 필름상에 존재하는 무기물층을 포함하는 유기전자소자용 기판.
- 제 1 항에 있어서, 기재 필름 표면은 탈이온수에 대한 상온 접촉각이 65도 이하인 유기전자소자용 기판.
- 제 1 항에 있어서, 이무수물 또는 디아민 화합물은 히드록시기를 2몰 내지 10몰의 범위 내로 포함하는 유기전자소자용 기판.
- 제 1 항에 있어서, 기재 필름은, 제 1 테트라카복실산 이무수물과 제 1 디아민 화합물의 축합 단위 또는 그 이미드화 단위인 제 1 단위 및 제 2 테트라카복실산 이무수물과 제 2 디아민 화합물의 축합 단위 또는 그 이미드화 단위인 제 2 단위를 포함하는 유기전자소자용 기판.
- 제 4 항에 있어서, 제 1 단위의 굴절률과 제 2 단위의 굴절률의 차이의 절대값이 0.01 이상인 유기전자소자용 기판.
- 제 4 항에 있어서, 제 1 단위에 포함되는 극성 관능기의 몰수와 제 2 단위에 포함되는 극성 관능기의 몰수의 차이의 절대값이 2 이상인 유기전자소자용 기판.
- 제 6 항에 있어서, 극성 관능기가 할로겐 원자, 할로알킬기, 시아노기, 니트로기, 알콕시기, 시아네이트기 또는 티오시아네이트기인 유기전자소자용 기판.
- 제 4 항에 있어서 기재 필름은, 제 2 단위 100 중량부 대비 제 1 단위 3 중량부 내지 30 중량부를 포함하는 유기전자소자용 기판.
- 제 1 항에 있어서, 무기물층은 ALD층인 유기전자소자용 기판.
- 제 1 항에 있어서, 무기물층은 550 nm 파장의 광에 대한 굴절률이 1.7 이상인 유기전자소자용 기판.
- 제 1 항에 있어서, 무기물층은, 제 1 서브층 및 제 2 서브층의 적층 구조를 포함하는 유기전자소자용 기판.
- 제 11 항에 있어서, 제 1 서브층의 두께와 제 2 서브층의 두께는 7 nm 이하인 유기전자소자용 기판.
- 제 12 항에 있어서, 무기물층은 두께가 7 nm를 초과하는 층을 포함하지 않는 유기전자소자용 기판.
- 제 11 항에 있어서, 제 1 서브층과 제 2 서브층은 금속 산화물층인 유기전자소자용 기판.
- 제 11 항에 있어서, 제 1 서브층의 굴절률은, 1.4 내지 1.9의 범위 내이고, 제 2 서브층의 굴절률은 2.0 내지 2.6의 범위 내인 유기전자소자용 기판.
- 제 1 항의 유기전자소자용 기판; 및 상기 기판의 무기물층상에 존재하는 제 1 전극층, 유기물층 및 제 2 전극층을 가지는 소자 영역을 포함하는 유기전자소자.
- 제 16 항의 유기전자소자를 포함하는 디스플레이용 광원.
- 제 16 항의 유기전자소자를 포함하는 조명 기기.
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Publication number | Publication date |
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EP2977199B1 (en) | 2020-01-08 |
KR20150037690A (ko) | 2015-04-08 |
JP2016527358A (ja) | 2016-09-08 |
EP2977199A4 (en) | 2016-11-16 |
CN105283312B (zh) | 2017-05-17 |
US9761832B2 (en) | 2017-09-12 |
TWI581969B (zh) | 2017-05-11 |
TW201527108A (zh) | 2015-07-16 |
EP2977199A1 (en) | 2016-01-27 |
JP6525994B2 (ja) | 2019-06-05 |
US20160056411A1 (en) | 2016-02-25 |
CN105283312A (zh) | 2016-01-27 |
KR101562146B1 (ko) | 2015-10-20 |
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