WO2024136100A1 - 경화성 조성물, 박막 및 표시 장치 - Google Patents
경화성 조성물, 박막 및 표시 장치 Download PDFInfo
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- WO2024136100A1 WO2024136100A1 PCT/KR2023/017358 KR2023017358W WO2024136100A1 WO 2024136100 A1 WO2024136100 A1 WO 2024136100A1 KR 2023017358 W KR2023017358 W KR 2023017358W WO 2024136100 A1 WO2024136100 A1 WO 2024136100A1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
- C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2/00—Processes of polymerisation
- C08F2/44—Polymerisation in the presence of compounding ingredients, e.g. plasticisers, dyestuffs, fillers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F222/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical and containing at least one other carboxyl radical in the molecule; Salts, anhydrides, esters, amides, imides, or nitriles thereof
- C08F222/10—Esters
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F222/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical and containing at least one other carboxyl radical in the molecule; Salts, anhydrides, esters, amides, imides, or nitriles thereof
- C08F222/10—Esters
- C08F222/1006—Esters of polyhydric alcohols or polyhydric phenols
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/54—Silicon-containing compounds
- C08K5/541—Silicon-containing compounds containing oxygen
- C08K5/5415—Silicon-containing compounds containing oxygen containing at least one Si—O bond
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D4/00—Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
Definitions
- the present invention relates to curable compositions, thin films, and display devices.
- curable compositions are expanding depending on their manufacturing and structural properties.
- the curable composition is used in electronic devices such as semiconductor devices or display devices.
- the curable composition may be used to cover at least one area of a display device or to seal the display device.
- the characteristics of the encapsulation part that blocks the inflow of gas or moisture from the outside are important, and a curable composition can also be usefully used in such an encapsulation part.
- the present invention can provide a curing composition with improved manufacturing process characteristics and various properties after curing.
- One object of the present invention includes a photocurable monomer, a photocurable initiator, and a silicone-based additive, wherein the silicone-based additive includes a photocurable substituent and an aliphatic substituent, and the ratio of the photocurable substituent to the aliphatic substituent is 2: 6 to 6:2, to provide a curable composition.
- Another object of the present invention is to provide a thin film made from the above curable composition.
- Another object of the present invention is to provide a display device including the thin film.
- an embodiment of the present invention includes a photocurable monomer, a photocurable initiator, and a silicone-based additive, and the silicone-based additive includes a photocurable substituent and an aliphatic substituent, and the photocurable substituent and aliphatic substituents in a ratio of 2:6 to 6:2.
- the silicone-based additive may include a siloxane structure.
- the silicone-based additive may include a cage-type or leather-type siloxane structure.
- the silicone-based additive may be of the following formula (1):
- n is an integer of 1 or more
- R is a photocurable substituent or an aliphatic substituent.
- the ratio of the photocurable substituent to the aliphatic substituent may be 2:6 to 6:2.
- the silicone-based additive may be of the following formula (2):
- R is a photocurable substituent or an aliphatic substituent.
- the ratio of the photocurable substituent to the aliphatic substituent may be 2:6 to 6:2.
- the photocurable substituent includes an acrylate structure
- the aliphatic substituent may be a C 1-20 alkyl group or a C 5-20 cycloalkyl group.
- the photocurable monomer may include the following formula (3):
- R 1 may be hydrogen or a C 1-5 alkyl group
- R 2 may be a C 1-25 alkyl group or a C 3-25 cycloalkyl group.
- the photocurable monomer is a heterogeneous photocurable monomer
- the weight ratio of the heterogeneous photocurable monomer may be 1:3 to 1:20.
- the curable composition may further include a bifunctional or more multifunctional photocurable monomer.
- the curable composition may further include an adhesion promoter.
- the viscosity of the curable composition may be 10 to 30 cPs.
- the amount of out gas generated by the coating film made from the curable composition may be 100 ppm or less.
- the dielectric constant of the coating film made from the curable composition may be less than 2.7 ⁇ r .
- Another embodiment of the present invention provides a thin film made from the curable composition.
- Another embodiment of the present invention provides a display device including the thin film.
- the composition according to the present invention is a low-viscosity, solvent-free composition that is easy to inkjet process, generates low outgassing from the cured product, and can provide a low dielectric organic thin film encapsulation composition that has durability when forming a secondary inorganic film.
- composition according to the present invention has improved manufacturing process properties, and through this, various properties can be improved after curing.
- a thin film and a display device including the same can be easily implemented through the composition according to the present invention.
- FIG. 1 is a diagram showing a thin film manufactured from a curable composition according to the present invention and a display device including the same.
- Figure 2 is an enlarged view of a thin film according to an embodiment of the present invention.
- Figure 3 is an enlarged view of a thin film according to another embodiment of the present invention.
- first and second are used not in a limiting sense but for the purpose of distinguishing one component from another component.
- the x-axis, y-axis, and z-axis are not limited to the three axes in the Cartesian coordinate system, but can be interpreted in a broad sense including these.
- the x-axis, y-axis, and z-axis may be orthogonal to each other, but may also refer to different directions that are not orthogonal to each other.
- a specific process sequence may be performed differently from the described sequence.
- two processes described in succession may be performed substantially at the same time, or may be performed in an order opposite to the order in which they are described.
- the curable composition according to an embodiment of the present invention may include a photocurable monomer, a photocure initiator, and a silicone-based additive.
- the silicone-based additive may include a siloxane structure. If it has a siloxane structure, it has the advantage of excellent thermal stability and excellent miscibility with other ingredients, making it easy to manufacture the composition.
- the siloxane structure may be cage-type or leather-type, and cage-type siloxane generally has a better dielectric constant than leather-type siloxane, but the dielectric constant may vary depending on the type or ratio of substituents substituted on the siloxane.
- the silicone-based additive may be of the following formula (1).
- n is an integer of 1 or more, preferably an integer of 1 to 20, and more preferably an integer of 5 to 10.
- R may be a photocurable substituent or an aliphatic substituent.
- the ratio of the photocurable substituent to the aliphatic substituent is 2:6 to 6:2; 2:6 to 5:3; 2:6 to 4:4; 2:6 to 3:5; 3:5 to 6:2; 3:5 to 5:3; 3:5 to 4:4; 4:4 to 6:2; 4:4 to 5:3; Or it may be 5:3 to 6:2.
- the dielectric constant or durability during secondary film formation may change.
- the silicone-based additive may be of the following formula (2).
- R is a photocurable substituent or an aliphatic substituent, and the ratio of the photocurable substituent and the aliphatic substituent may be the same as the ratio in the above-mentioned formula 1 or may be modified as necessary, and further detailed description is omitted.
- (meth)acrylic means acrylic and/or methacrylic.
- the photocurable substituent may include an acrylate structure, in which case the viscosity is low and compatibility with other ingredients is excellent.
- the acrylate may include one or more of non-sulfur-based (meth)acrylate that does not contain sulfur, non-aromatic (meth)acrylate that does not have an aromatic group, and aromatic (meth)acrylate that has an aromatic group. You can.
- the non-aromatic (meth)acrylate may be a (meth)acrylate having a substituted or unsubstituted C 1-20 alkyl group.
- non-aromatic (meth)acrylate is a (meth)acrylate having an unsubstituted straight-chain C 1-20 alkyl group, more specifically, a non-substituted straight-chain C 10-20 alkyl group. It can be a mono(meth)acrylate.
- non-aromatic mono(meth)acrylates include decyl(meth)acrylate, undecyl(meth)acrylate, lauryl(meth)acrylate, tridecyl(meth)acrylate, and tetradecyl(meth)acrylate.
- Acrylate pentadecyl (meth)acrylate, hexadecyl (meth)acrylate, heptadecyl (meth)acrylate, octadecyl (meth)acrylate, nonadecyl (meth)acrylate, arachidyl (meth)acrylate It may include, but is not limited to, one or more of stearyl (meth)acrylate, 2-octyl-1-dodecyl (meth)acrylate, and isobornyl (meth)acrylate.
- Aromatic (meth)acrylate may include (meth)acrylate having an aromatic group.
- Aromatic (meth)acrylate may include (meth)acrylate having a substituted or unsubstituted aromatic group.
- 'aromatic group' refers to a polycyclic aromatic group including a monocyclic or fused form, or a form in which a single ring is connected by a sigma bond.
- the aromatic group is a substituted or unsubstituted C 6-50 aryl group, a substituted or unsubstituted C 7-50 arylalkyl group, a substituted or unsubstituted C 3-50 heteroaryl group, or a substituted or unsubstituted C 3-50 heteroaryl group.
- the aromatic group is phenyl, biphenyl, terphenyl, quarterphenyl, naphthyl, anthracenyl, phenanthrenyl, chrysenyl, triphenylenyl, tetracenyl, pyrenyl, benzopyrenyl, pentacenyl, and coronenyl.
- the aliphatic substituent is an acyclic or cyclic non-aromatic carbon compound and may be a C 1-20 alkyl group or a C 5-20 cycloalkyl group. Preferably, it may be a cycloalkyl group to reduce the dielectric constant, but is not particularly limited thereto.
- the alkyl group may be straight chain or branched unless otherwise specified, and the number of carbon atoms is not particularly limited, but may be 1 to 40. According to one embodiment, the carbon number of the alkyl group is 1 to 20. According to another example, the alkyl group has 1 to 10 carbon atoms. According to another example, the alkyl group has 1 to 6 carbon atoms. Specific examples of alkyl groups include methyl, ethyl, propyl, n-propyl, isopropyl, butyl, n-butyl, isobutyl, tert-butyl, sec-butyl, 1-methyl-butyl, 1-ethyl-butyl, pentyl, n.
- -pentyl isopentyl, neopentyl, tert-pentyl, hexyl, n-hexyl, 1-methylpentyl, 2-methylpentyl, 4-methyl-2-pentyl, 3,3-dimethylbutyl, 2-ethylbutyl, heptyl , n-heptyl, 1-methylhexyl, cyclopentylmethyl, cyclohexylmethyl, octyl, n-octyl, tert-octyl, 1-methylheptyl, 2-ethylhexyl, 2-propylpentyl, n-nonyl, 2,2 -Dimethylheptyl, 1-ethyl-propyl, 1,1-dimethyl-propyl, isohexyl, 2-methylpentyl, 4-methylhexyl, 5-methylhexyl, etc., but is not limited to these
- the cycloalkyl group is not particularly limited, but may have 5 to 60 carbon atoms. According to one embodiment, the carbon number of the cycloalkyl group is 5 to 30. According to another example, the cycloalkyl group has 5 to 20 carbon atoms.
- Examples include, but are not limited to, 4,5-trimethylcyclohexyl, 4-tert-butylcyclohexyl, cycloheptyl, and cyclooctyl.
- the silicone-based additive of Formula 1 or 2 is contained in an amount of 5 to 15% by weight based on the total weight of the composition; 6 to 15% by weight; 7 to 15% by weight; 8 to 15% by weight; 9 to 15% by weight; 5 to 14% by weight; 6 to 14% by weight; 7 to 14% by weight; 8 to 14% by weight; 9 to 14% by weight; 5 to 13% by weight; 6 to 13% by weight; 7 to 13% by weight; 8 to 13% by weight; 9 to 13% by weight; 5 to 12% by weight; 6 to 12% by weight; 7 to 12% by weight; 8 to 12% by weight; 9 to 12% by weight; 5 to 11% by weight; 6 to 11% by weight; 7 to 11% by weight; 8 to 11% by weight; 9 to 11% by weight; 5 to 10% by weight; 6 to 10% by weight; 7 to 10% by weight; 8 to 10% by weight; Or it may be 9 to 10% by weight.
- the silicone-based additive When the silicone-based additive is included in an amount of 5 to 15% by weight based on the total weight of the curable composition, it is easy to secure low dielectric properties of the cured product, and photocuring of the curable composition is easy, enabling efficient film formation.
- the photocurable monomer may include the following formula (3).
- R 1 is hydrogen or a C 1-5 alkyl group
- R 2 may be a C 1-25 alkyl group or a C 3-25 cycloalkyl group.
- R 2 is an alkyl group, the freezing point is higher than when it is a straight chain, so it can be frozen at room temperature, so storage safety is low, and a high content may need to be used to reduce the dielectric constant.
- R 2 is preferably a cycloalkyl group, but may be modified to optimize effects such as dielectric constant, but is not limited thereto.
- alkyl group and cycloalkyl group may be the same as the alkyl group and cycloalkyl group in the above-described embodiments or may be modified as necessary, and further detailed description will be omitted. Additionally, an embodiment of Chemical Formula 3 may be the same as the description of acrylate described above or may be modified as necessary.
- the photocurable monomer of Formula 3 is 50 to 80% by weight based on the total weight of the composition; 55 to 80% by weight; 60 to 80% by weight; 65 to 80% by weight; 50 to 75% by weight; 55 to 75% by weight; 60 to 75% by weight; 65 to 75% by weight; 50 to 70% by weight; 55 to 70% by weight; 60 to 70% by weight; Or it may be 65 to 70% by weight.
- the photocurable monomer When the photocurable monomer is included in an amount of 50 to 80% by weight based on the total weight of the composition, inkjet ejection is easy and the amount of outgassing can be reduced.
- the photocurable monomer may include a heterogeneous photocurable monomer to reduce the dielectric constant, and the weight % ratio of the heterogeneous photocurable monomer is 1:3 to 1:20; 1:5 to 1:20; 1:10 to 1:20; 1:15 to 1:20; 1:3 to 1:15; 1:5 to 1:15; 1:10 to 1:15; 1:3 to 1:10; Or it may be 1:5 to 1:10.
- the heterogeneous photocurable monomer includes one type of photocurable monomer in Formula 3 wherein R 2 is a C 1-25 alkyl group and one type of photocurable monomer in Formula 3 where R 2 is a C 3-25 cycloalkyl group. It could be.
- One embodiment of the present invention may further include a bifunctional or more multifunctional photocurable monomer.
- the multifunctional photocurable monomer may be the same as the photocurable monomer in the above-described examples or may be modified as needed. Specifically, trimethylolpropane tri(meth)acrylate, ethoxylated trimethyl It may be all-propane trimethacrylate, ethoxylated trimethylolpropane triacrylate, pentaerythritol trimethacrylate, and pentaerythritol triacrylate, but is not limited thereto.
- the multifunctional photocurable monomer is 10 to 30% by weight based on the total weight of the composition; 12 to 30% by weight; 15 to 30% by weight; 17 to 30% by weight; 20 to 30% by weight; 10 to 27% by weight; 12 to 27% by weight; 15 to 27% by weight; 17 to 27% by weight; 20 to 27% by weight; 10 to 25% by weight; 12 to 25% by weight; 15 to 25% by weight; 17 to 25% by weight; 20 to 25% by weight; 10 to 22% by weight; 12 to 22% by weight; 15 to 22% by weight; 17 to 22% by weight; 20 to 22% by weight; 10 to 20% by weight; 12 to 20% by weight; 15 to 20% by weight; Or it may be 17 to 20% by weight.
- the multifunctional photocurable monomer When included in an amount of 10 to 30% by weight based on the total weight of the curable composition, inkjet ejection properties may increase and the amount of outgassing may be reduced.
- the photocuring initiator may be any photocuring initiator that allows effective photocrosslinking of the photocurable monomer and the multifunctional photocurable monomer.
- photocuring initiators acetophenone-based, benzophenone-based, thioxanthone-based, and benzoin-based initiators can be used. Furthermore, these initiators can be used in combination of two or more types.
- the photocuring initiator may include a mixture of two or more types of photocuring initiators.
- the photocuring initiator includes a mixture of two or more types of photocuring initiators, the effects of surface curing and deep curing can be realized.
- Specific photocuring initiators include acetophenone, hydroxy dimethyl acetophenone, dimethylamino acetophenone, dimethoxy-2-phenyl acetophenone, 3 -Methyl-acetophenone (3-methyl-acetophenone), 2,2-dimethoxy-2-phenyl acetophenone, 2,2-ethoxy-2-phenyl acetophenone (2,2-ethoxy-2-phenyl acetophenone), 4-chroman nolro Seto benzophenone, 4,4-dimethoxy-acetophenone (4,4-dimethoxy-acetophenone), 2 -Hydroxy-2-methyl-1-phenylpropan-1-one (2-hydroxy-2-methyl-1-phenylpropan-1-one), 4-hydroxycyclohexyl phenyl ketone, 1-hydroxycyclohexyl phenyl ketone, 2-methyl-1-[4-(methylthio) phenyl]-2-morpholino-propan
- Photocure initiators that can be used include darocur 1173, darocur 4265, darocur BP, darocur TPO, darocur MBF, irgacure 184, irgacure 500, irgacure 2959, irgacure 754, irgacure 651, irgacure 369, and 907 , irgacure 1300, irgacure 819, irgacure 2022, irgacure 2959, irgacure 2100, irgacure 784, irgacure 250, etc., and these can be used alone or in a mixture of two or more types.
- the photocuring initiator may initiate photocuring by light with a wavelength of 300 nm to 400 nm, or 385 nm to 395 nm, for example, UV light of the above wavelength.
- the photocuring initiator may be an initiator that initiates photocuring by a UV lamp with a wavelength of 300 nm to 400 nm, or 385 nm to 395 nm, which is the wavelength range of the UV lamp used in forming the organic thin film bag.
- the curable composition of one embodiment may include a thioxanthone-based initiator and a benzoin-based initiator.
- the organic thin film encapsulation composition of one embodiment may be used by mixing phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide and 2-isopropyl thioxanthone.
- the photocuring initiator is 0.5 to 5% by weight based on the total weight of the composition; 1 to 5% by weight; 2 to 5% by weight; 0.5 to 4.5% by weight; 1 to 4.5% by weight; 2 to 4.5% by weight; 0.5 to 4% by weight; 1 to 4% by weight; 2 to 4% by weight; 0.5 to 3% by weight; 1 to 3% by weight; 2 to 3% by weight; 0.5 to 2.5% by weight; 1 to 2.5% by weight; Or it may be 2 to 2.5% by weight.
- the curable composition contains 0.5 to 5% by weight of the photocuring initiator based on the total weight of the composition, photocuring can proceed smoothly and the amount of outgassing can be reduced.
- One embodiment of the present invention may further include an adhesion promoter.
- the adhesion promoter is intended to improve adhesion to general bare glass or an inorganic material layer.
- a silane-based material may be used as an adhesion promoter.
- a material having a (meth)acrylate group may be used.
- adhesion promoters having an amino group or an adhesion promoter having a phosphate group may be used.
- Adhesion promoters having a phosphate group include bis[2-(methacryloyloxy)ethyl] phosphate, bis[2-(acryloyloxy)ethyl] phosphate (bis[ 2-(acryloyloxy)ethyl] phosphate), 2-Methacryloyloxyethyl acid phoshate, 2-acryloyloxyethyl acid phoshate, etc. can be used.
- the adhesion promoter is 0.1 to 3% by weight based on the total weight of the composition; 0.11 to 3% by weight; 0.12 to 3% by weight; 0.13 to 3% by weight; 0.14 to 3% by weight; 0.15 to 3% by weight; 0.16 to 3% by weight; 0.17 to 3% by weight; 0.18 to 3% by weight; 0.19 to 3% by weight; 0.2 to 3% by weight; 0.1 to 2% by weight; 0.11 to 2% by weight; 0.12 to 2% by weight; 0.13 to 2% by weight; 0.14 to 2% by weight; 0.15 to 2% by weight; 0.16 to 2% by weight; 0.17 to 2% by weight; 0.18 to 2% by weight; 0.19 to 2% by weight; 0.2 to 2% by weight; 0.1 to 1% by weight; 0.11 to 1% by weight; 0.12 to 1% by weight; 0.13 to 1% by weight; 0.14 to 1% by weight; 0.15 to 1% by weight; 0.16 to 2% by weight; 0.17 to 2% by
- adhesion promoter is included in an amount of 0.1 to 3% by weight based on the total weight of the curable composition, sufficient adhesion to the inorganic layer of the photocurable composition can be secured.
- the viscosity of the curable composition according to one embodiment of the present invention is 10 to 30 cPs; 10 to 25 cPs; 10 to 20 cPs; 10 to 15 cPs; 15 to 30 cPs; 15 to 25 cPs; 15 to 20 cPs; Or it may be 20 to 30 cPs.
- the curable composition according to an embodiment of the present invention is a low-viscosity material with a viscosity of 10 to 30 cPs, and thus can be formed by inkjet printing because ejection properties from an inkjet head are secured.
- the outgassing amount of the coating film manufactured with the curable composition according to an embodiment of the present invention is 100 ppm or less; 90 ppm or less; 80 ppm or less; 70 ppm or less; 65 ppm or less; 60 ppm or less; Or it may be 30 to 100 ppm.
- the coating film manufactured with the curable composition according to an embodiment of the present invention has a low outgassing amount and is effective in improving performance and lifespan.
- the dielectric constant of the coating film made from the curable composition according to one embodiment of the present invention is less than 2.7 ⁇ r ; 2.65 ⁇ r or less; 2.6 ⁇ r or less; or greater than or equal to 2.3 ⁇ r but less than 2.7 ⁇ r You can. Accordingly, electrical noise formed in the display can be reduced and touch malfunctions can be reduced.
- One embodiment of the present invention provides a thin film made from the curable composition and a display device including the thin film.
- Figure 1 shows a thin film made from the curable composition and a display device including the thin film.
- the display device 10 may include a substrate 100 and a display unit 110, and the display unit 110 may be located on the substrate 100.
- the display unit 110 may include an organic light emitting device, and a thin film 120 may cover at least one side of the organic light emitting device.
- Figure 2 is an enlarged view of the thin film as an example.
- the thin film 120 may include an inorganic layer 200 and an organic layer 210, and the organic layer 210 may include the curable composition.
- Figure 3 is an enlarged view of the thin film as an optional embodiment.
- the thin film 120 may include an inorganic film 200 and an organic film 210.
- an inorganic film 200 and an organic film 210 are shown as being stacked in order, but the number of inorganic films and organic films or the order in which they are stacked is not particularly limited.
- the amount of outgassing in the organic film is reduced, while the adhesion in the inorganic film is increased and it is easy to secure transparency characteristics for top emission.
- the low viscosity characteristic makes it possible to secure ejection through inkjet, and the low dielectric constant characteristic is effective in reducing noise.
- the organic layer was extracted using methylene chloride and water, the water was removed using magnesium sulfate, and the solution was dried under reduced pressure to prepare cage-structured silsesquioxane with methacrylate and hexyl substituents.
- GPC measurement results showed Mw 1635, Mn 1447, and Mw/Mn 1.13, and 1H NMR results confirmed that the ratio of synthesized methacrylate and hexyl groups was 4.1:3.9.
- 2-OCTYL-1-DODECANYL MethaCrylate 6.27g, isobornyl methacrylate 0.5g, trimethylolpropane trimethacrylate 2.0g BIS (2,4,6-Trimethylbenzoyl) phosphine oxide 0.2g, 2-Isopropylthioxanthone 0.03g, A photocurable composition was prepared by stirring 0.02 g of Bis[2-(methacryloyloxy)ethyl]phosphate.
- 2-OCTYL-1-DODECANYL MethaCrylate 6.27g, isobornyl methacrylate 0.5g, trimethylolpropane trimethacrylate 2.0g BIS (2,4,6-Trimethylbenzoyl) phosphine oxide 0.2g, 2-Isopropylthioxanthone 0.03g, A photocurable composition was prepared by stirring 0.02 g of Bis[2-(methacryloyloxy)ethyl]phosphate.
- 2-OCTYL-1-DODECANYL MethaCrylate 6.27g, isobornyl methacrylate 0.5g, trimethylolpropane trimethacrylate 2.0g BIS (2,4,6-Trimethylbenzoyl) phosphine oxide 0.2g, 2-Isopropylthioxanthone 0.03g, A photocurable composition was prepared by stirring 0.02 g of Bis[2-(methacryloyloxy)ethyl]phosphate.
- 2-OCTYL-1-DODECANYL MethaCrylate 6.27g, isobornyl methacrylate 0.5g, trimethylolpropane trimethacrylate 2.0g BIS (2,4,6-Trimethylbenzoyl) phosphine oxide 0.2g, 2-Isopropylthioxanthone 0.03g, A photocurable composition was prepared by stirring 0.02 g of Bis[2-(methacryloyloxy)ethyl]phosphate.
- 2-OCTYL-1-DODECANYL MethaCrylate 6.27g, isobornyl methacrylate 0.5g, trimethylolpropane trimethacrylate 2.0g BIS (2,4,6-Trimethylbenzoyl) phosphine oxide 0.2g, 2-Isopropylthioxanthone 0.03g, A photocurable composition was prepared by stirring 0.02 g of Bis[2-(methacryloyloxy)ethyl]phosphate.
- 2-OCTYL-1-DODECANYL MethaCrylate 6.27g, isobornyl methacrylate 0.5g, trimethylolpropane trimethacrylate 2.0g BIS (2,4,6-Trimethylbenzoyl) phosphine oxide 0.2g, 2-Isopropylthioxanthone 0.03g, A photocurable composition was prepared by stirring 0.02 g of Bis[2-(methacryloyloxy)ethyl]phosphate.
- 2-OCTYL-1-DODECANYL MethaCrylate 5.77g and isobornyl methacrylate 1.0g, trimethylolpropane trimethacrylate 2.0g IS (2,4,6-trimethylbenzoyl) phosphine oxide 0.2g, 2-disopropylthioxanthone 0.03g,
- a photocurable composition was prepared by stirring 0.02 g of Bis[2-(methacryloyloxy)ethyl]phosphate.
- 2-octyl-1-dodecanyl methacrylate 6.27g, Dicyclopentanyl methacrylate 0.5g, silsesquioxane of Synthesis Example 4 0.98g Trimethylolpropane trimethacrylate 2.0g, Phenylbis(2,4,6-trimethylbenzoyl) phosphine oxide 0.2g, 2-Isopropylthioxanthone 0.03g, Bis A photocurable composition was prepared by stirring 0.02 g of [2-(methacryloyloxy)ethyl]phosphate.
- the curable composition according to the present invention is a low-viscosity material with a viscosity of 10 to 30 cPs, so it is useful for forming by inkjet printing because it ensures ejection properties from an inkjet head.
- composition prepared in Examples, Comparative Examples, and Reference Examples was coated on bare glass to a thickness of 5 ⁇ m using a spin coater, and then irradiated at 1000mW/cm 2 using a 395nm UV LED to prepare a cured coating film.
- the manufactured glass was cut to a size of 1cm Detailed analysis conditions are shown in Table 2 below, and the experimental results are shown in Table 3.
- the outgassing amount of the coating film manufactured with the curable composition according to the present invention is mostly 100 ppm or less. Therefore, the performance and lifespan of electronic devices including thin films manufactured with the composition according to the present invention can be improved.
- the performance and lifespan of the display device are improved, and as a specific example, the performance of the organic light emitting element of the display portion of the display device and Improvement of lifespan characteristics can be easily implemented.
- Durability when forming a secondary inorganic film was tested by coating the composition prepared in Examples, Comparative Examples and Reference Examples on a wafer to a thickness of about 8 ⁇ m using a spin coater and then irradiating it at 1000mW/cm 2 using a 395nm UV LED.
- a coating film was prepared.
- a SiNx inorganic film was deposited on the manufactured coating film through a PECVD process. Deposition was carried out under conditions of Power 5kW, Pressure 0.8Torr, and compressive stress -500MPa under SiH 4 and NH 3 gas.
- the surface of the organic film was measured with a Profilometer (KLA P-7), and the Ra (average roughness) value was expressed as ⁇ if it was less than 5 nm, ⁇ if it was 5 to 20 nm, and X if it was more than 20 nm.
- KLA P-7 Profilometer
- the thin film containing the curable composition according to the present invention is formed in close contact with the inorganic film during secondary film formation, does not generate wrinkles, and has excellent durability of the thin film.
- the composition prepared in Examples, Comparative Examples, and Reference Examples was coated on the lower electrode (low-resistance wafer) to a thickness of about 8 ⁇ m using a spin coater, and then irradiated at 1000mW/cm 2 using a 395nm UV LED to form a coating film.
- Manufactured A metal mask with an electrode size of 3 mm x 3 mm was covered over the manufactured coating film, and the upper electrode (Pt) was coated using a sputter.
- the change in capacitance was measured by applying a frequency of 1 KHz to 1 MHz to the formed upper and lower electrodes. (Agilent Semiconductor Device Analyzer, B1500A)
- the actual thickness of the coating film was measured using SEM. The measurement results are shown in Table 5 below.
- Example 1 Permittivity ( ⁇ r @ 100kHz) Example 1 2.65 Example 2 2.65 Example 3 2.60 Example 4 2.55 Example 5 2.62 Example 6 2.63 Example 7 2.60 Example 8 2.62 Example 9 2.57 Example 10 2.61 Comparative Example 1 2.70 Comparative Example 2 2.58 Comparative Example 3 2.75 Reference example 1 2.57 Reference example 2 2.8
- the dielectric constant changes depending on the siloxane structure of the silicone additive, the ratio of substituents, etc.
- Most coating films prepared with the curable composition according to the present invention had a dielectric constant of less than 2.70 ⁇ r . Therefore, the thin film containing the curable composition according to the present invention has a low dielectric constant, so the electrical properties can be improved, and for example, it is easy to reduce or prevent electrical interference in adjacent members, specifically, members involved in electrical signal transmission.
- the thin film of the display device includes an organic film made of the curable composition according to the present invention, electrical interference with other members such as electrical elements included in the display device is reduced, thereby reducing the amount of energy generated in the display device. Electrical noise can be reduced.
- the display device when the display device includes a touch member for recognizing the user's touch or is placed adjacent to the display device, electrical interference between the touch device and the thin film is reduced or prevented, thereby improving the precise control characteristics of the touch device, thereby improving the touch operation. Precision can be improved.
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Abstract
Description
| 점도(cPs) | |
| 실시예 1 | 20 |
| 실시예 2 | 21 |
| 실시예 3 | 20 |
| 실시예 4 | 19 |
| 실시예 5 | 18 |
| 실시예 6 | 25 |
| 실시예 7 | 20 |
| 실시예 8 | 17 |
| 실시예 9 | 16 |
| 실시예 10 | 19 |
| 비교예 1 | 16 |
| 비교예 2 | 20 |
| 비교예 3 | 17 |
| 참고예 1 | 25 |
| 참고예 2 | 12 |
| 구분 | 세부사항 | |
| 포집조건 | Purge & Trap temperature | 90 ℃ |
| Purge & Trap time | 30min | |
| Cold Trap Temperature | -30 ℃ | |
| Sample size | 1㎝ x 6㎝ | |
| Desorption flow | 50ml/min | |
| Column | type | HP-5MS |
| Inside diameter | 0.25mm | |
| Length | 60m | |
| Film thickness | 0.25㎛ | |
| GC / Mss 조건 |
method | 40℃(3min)-10℃/min-160℃(7min)-15℃/min-280℃(25min) |
| Flow | 1ml/min | |
| Split ratio | 1/30 | |
| 아웃 가스 발생량(ppm) | |
| 실시예 1 | 65 |
| 실시예 2 | 60 |
| 실시예 3 | 55 |
| 실시예 4 | 52 |
| 실시예 5 | 67 |
| 실시예 6 | 57 |
| 실시예 7 | 57 |
| 실시예 8 | 71 |
| 실시예 9 | 58 |
| 실시예 10 | 61 |
| 비교예 1 | 59 |
| 비교예 2 | 69 |
| 비교예 3 | 95 |
| 참고예 1 | 81 |
| 참고예 2 | 170 |
| 2차 성막 시 내구성 | |
| 실시예 1 | ◎ |
| 실시예 2 | ○ |
| 실시예 3 | ◎ |
| 실시예 4 | ◎ |
| 실시예 5 | ◎ |
| 실시예 6 | ◎ |
| 실시예 7 | ○ |
| 실시예 8 | ◎ |
| 실시예 9 | ◎ |
| 실시예 10 | ◎ |
| 비교예 1 | ◎ |
| 비교예 2 | X |
| 비교예 3 | ◎ |
| 참고예 1 | X |
| 참고예 2 | ◎ |
| 유전율(εr @ 100kHz) | |
| 실시예 1 | 2.65 |
| 실시예 2 | 2.65 |
| 실시예 3 | 2.60 |
| 실시예 4 | 2.55 |
| 실시예 5 | 2.62 |
| 실시예 6 | 2.63 |
| 실시예 7 | 2.60 |
| 실시예 8 | 2.62 |
| 실시예 9 | 2.57 |
| 실시예 10 | 2.61 |
| 비교예 1 | 2.70 |
| 비교예 2 | 2.58 |
| 비교예 3 | 2.75 |
| 참고예 1 | 2.57 |
| 참고예 2 | 2.8 |
Claims (15)
- 광경화성 모노머(monomer);광경화 개시제; 및실리콘계 첨가제;를 포함하고,상기 실리콘계 첨가제는 광경화성 치환기 및 지방족 치환기를 포함하며, 상기 광경화성 치환기와 지방족 치환기의 비율은 2:6 내지 6:2인, 경화성 조성물.
- 제1 항에 있어서,상기 실리콘계 첨가제는 실록산 구조를 포함하는, 경화성 조성물.
- 제2 항에 있어서,상기 실리콘계 첨가제는 케이지형 또는 레더형의 실록산 구조를 포함하는, 경화성 조성물.
- 제1 항에 있어서,상기 실리콘계 첨가제는 하기 화학식 1인, 경화성 조성물:[화학식 1](RSiO3/2)n상기 화학식 1에서,n은 1이상의 정수이고,R은 광경화성 치환기 또는 지방족 치환기로서,상기 광경화성 치환기와 지방족 치환기의 비율은 2:6 내지 6:2이다.
- 제1 항에 있어서,상기 광경화성 치환기는 아크릴레이트(acrylate) 구조를 포함하며,상기 지방족 치환기는 C1-20의 알킬기 또는 C5-20의 사이클로알킬기인, 경화성 조성물.
- 제1 항에 있어서,상기 광경화성 모노머는 이종의 광경화성 모노머이며,상기 이종의 광경화성 모노머의 중량 비율은 1:3 내지 1:20인, 경화성 조성물.
- 제1 항에 있어서,상기 경화성 조성물은 2관능 이상의 다관능 광경화성 모노머를 더 포함하는, 경화성 조성물.
- 제1 항에 있어서,상기 경화성 조성물은 접착력 증진제를 더 포함하는, 경화성 조성물.
- 제1 항에 있어서,상기 경화성 조성물의 점도는 10 내지 30 cPs인, 경화성 조성물.
- 제1 항에 있어서,상기 경화성 조성물로 제조된 코팅막의 아웃 가스(out gas) 발생량은 100 ppm 이하인, 경화성 조성물.
- 제1 항에 있어서,상기 경화성 조성물로 제조된 코팅막의 유전율은 2.7 εr 미만인, 경화성 조성물.
- 제1 항의 경화성 조성물로 제조되는, 박막.
- 제14 항의 박막을 포함하는, 표시 장치.
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| JP2025533501A JP2026502824A (ja) | 2022-12-22 | 2023-11-02 | 硬化性組成物、薄膜及び表示装置 |
| CN202380083832.1A CN120322469A (zh) | 2022-12-22 | 2023-11-02 | 一种固化性组合物、薄膜及显示装置 |
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| KR10-2022-0181397 | 2022-12-22 | ||
| KR1020220181397A KR20240099661A (ko) | 2022-12-22 | 2022-12-22 | 경화성 조성물, 박막 및 표시 장치 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009079163A (ja) * | 2007-09-27 | 2009-04-16 | Ube Ind Ltd | 硬化性組成物、シルセスキオキサン硬化物、及びシルセスキオキサン硬化物の製造法 |
| KR20140132573A (ko) * | 2013-05-08 | 2014-11-18 | 동우 화인켐 주식회사 | 점착제 조성물 및 이를 이용한 플렉시블 표시장치의 제조방법 |
| US20170168390A1 (en) * | 2015-12-14 | 2017-06-15 | Chi Mei Corporation | Photosensitive resin composition, protective film, and liquid crystal display element |
| KR20200035372A (ko) * | 2017-08-02 | 2020-04-03 | 도레이 카부시키가이샤 | 실록산 수지 조성물, 그것을 사용한 접착제, 표시 장치, 반도체 장치 및 조명 장치 |
| CN114015277A (zh) * | 2021-10-19 | 2022-02-08 | 杭州福斯特电子材料有限公司 | 一种用于oled封装的油墨组合物及其应用 |
-
2022
- 2022-12-22 KR KR1020220181397A patent/KR20240099661A/ko active Pending
-
2023
- 2023-11-02 WO PCT/KR2023/017358 patent/WO2024136100A1/ko not_active Ceased
- 2023-11-02 JP JP2025533501A patent/JP2026502824A/ja active Pending
- 2023-11-02 CN CN202380083832.1A patent/CN120322469A/zh active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009079163A (ja) * | 2007-09-27 | 2009-04-16 | Ube Ind Ltd | 硬化性組成物、シルセスキオキサン硬化物、及びシルセスキオキサン硬化物の製造法 |
| KR20140132573A (ko) * | 2013-05-08 | 2014-11-18 | 동우 화인켐 주식회사 | 점착제 조성물 및 이를 이용한 플렉시블 표시장치의 제조방법 |
| US20170168390A1 (en) * | 2015-12-14 | 2017-06-15 | Chi Mei Corporation | Photosensitive resin composition, protective film, and liquid crystal display element |
| KR20200035372A (ko) * | 2017-08-02 | 2020-04-03 | 도레이 카부시키가이샤 | 실록산 수지 조성물, 그것을 사용한 접착제, 표시 장치, 반도체 장치 및 조명 장치 |
| CN114015277A (zh) * | 2021-10-19 | 2022-02-08 | 杭州福斯特电子材料有限公司 | 一种用于oled封装的油墨组合物及其应用 |
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| CN120322469A (zh) | 2025-07-15 |
| KR20240099661A (ko) | 2024-07-01 |
| JP2026502824A (ja) | 2026-01-27 |
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