KR102456605B1 - Metal oxide dispersion composition for display, and preparing method for the same and optical member - Google Patents

Abstract

The present invention relates to a metal oxide dispersion composition for a display, a method for manufacturing the same, and an optical member for a display. The metal oxide dispersion composition for a display according to an embodiment of the present invention comprises: metal oxide particles; acrylate-based monomers; silane-based surface treatment agent; and a dispersing agent, wherein the dispersing agent includes: a fatty acid-based dispersant; or a dispersing agent in which a phosphate ester-based dispersant and a fatty acid-based dispersant are mixed.

Description

Metal oxide dispersion composition for display, manufacturing method thereof, and optical member for display

The present invention relates to a metal oxide dispersion composition for a display, a method for producing the same, and an optical member for a display.

Optically transparent polymer materials are widely used as optical coatings and optoelectronic materials because of their low cost, good processability, and high transmittance in the visible region. Recently, transparent materials with high refractive index have been used as materials for optical filters, lenses, reflectors, optical waveguides, antireflection films, solar cells, and light emitting diodes (LEDs).

High refractive inorganic materials for displays have been introduced to improve the quality of displays, such as high brightness, high contrast, and low power, and are expected to be applied more extensively in the future. Inorganic materials have a higher refractive index than organic materials, which contributes to the improvement of optical properties, but there is a disadvantage that the viscosity increases significantly as the content increases.

Therefore, there is a need for research and development of a metal oxide dispersion capable of improving viscosity and reducing yellowing of a film while implementing a high refractive index.

The present invention is to solve the above problems, and an object of the present invention is to provide a low-viscosity metal oxide dispersion composition for a display capable of reducing yellowing while implementing a high refractive index, a method for manufacturing the same, and an optical member for a display will do

However, the problems to be solved by the present invention are not limited to those mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the following description.

A metal oxide dispersion composition for a display according to an embodiment of the present invention includes: metal oxide particles; acrylate-based monomers; silane-based surface treatment agent; and a dispersing agent, wherein the dispersing agent includes: a fatty acid-based dispersant; or a dispersing agent in which a phosphate ester-based dispersant and a fatty acid-based dispersant are mixed.

According to one embodiment, the dispersing agent in which the phosphate ester-based dispersant and the fatty acid-based dispersant are mixed, the phosphate ester-based dispersant and the fatty acid-based dispersant are mixed in a ratio of 1.5: 1 to 6.

According to an embodiment, the acrylate-based monomer is O-phenylphenol EO Acrylate (OPPEA), phenol acrylate (Phenol (EO) Acrylate; PHEA), 3- (phenoxyphenyl) Methylpropyl-2-enoate (3-(phenoxyphenyl)methyl prop-2-enoate; PBA), methyl acrylate, ethyl acrylate, propyl acrylate, isopropyl acrylate, butyl acrylate, isobutyl acrylate, t-Butyl acrylate, pentyl acrylate, isopentyl acrylate, 2-ethylhexyl acrylate, isooctyl acrylate, nonyl acrylate, isononyl acrylate, dodecyl acrylate, stearyl acrylate, methyl methacrylate , ethyl methacrylate, propyl methacrylate, isopropyl methacrylate, butyl methacrylate, isobutyl methacrylate, t-butyl methacrylate, pentyl methacrylate, isopentyl methacrylate, 2-ethylhexyl Methacrylate, isooctyl methacrylate, nonyl methacrylate, isononyl methacrylate, dodecyl methacrylate, stearyl methacrylate, 2-ethoxyethoxyethyl acrylate, 2-ethoxyethoxyethyl Methacrylate, methoxyethyl acrylate, methoxyethyl methacrylate, 2-phenoxyethyl acrylate, ethoxylate phenoxy acrylate, 3,3,5-trimethylcyclohexane acrylate, cyclic triethylpropane It may include one or more selected from the group consisting of foam acrylate, benzyl acrylate, isobornyl acrylate, cyclohexyl acrylate and biphenylmethyl acrylate.

According to one embodiment, the acrylate-based monomer may be 20 wt% to 60 wt% of the metal oxide dispersion composition for a display.

According to an embodiment, the silane-based surface treatment agent is γ-methacryloxypropyltrimethoxysilane, 4-aminobutylmethyldiethoxysilane, 3-aminopropyltrimethoxysilane, N-2-aminoethyl-3 -Aminopropyldiethylisopropoxysilane, (mercaptomethyl)dimethylethoxysilane, di-4-mercaptobutyldimethoxysilane, 3-mercaptopropyltriisopropoxysilane, 3-methacryloxypropyldimethyl Toxysilane, 3-acryloxypropyltrimethoxysilane, (3-glycidoxypropyl)methyldimethoxysilane, 2-(3,4-epoxycyclohexyl)ethyltrimethoxysilane, 3-chloropropyltrimethoxy Silane, 4-bromobutylmethyldibutoxysilane, 5-iodohexyldiethylmethoxysilane, 3-isocyanatepropyltrimethoxysilane, 3-isothiocyanatepropylmethyldimethoxysilane, 3-hydroxybutyliso Propyldimethoxysilane, bis(2-hydroxyethyl)-3-aminopropyltriethoxysilane, bromophenyltrimethoxysilane, (2-(iodophenyl)ethyl)ethyldimethoxysilane, bis(chloromethylphenyl) ) Dimethoxysilane, bromomethylphenyldimethylisopropoxysilane, bis(propyltrimethoxysilane)carbodiimide, N-ethyl-N-(propylethoxydimethoxysilane)-carbodiimide, 3-(tri Methoxysilyl)propanol, (3,5-hexadione)triethoxysilane, 3-(trimethoxysilyl)propylacetoacetate, 3-(trimethoxysilyl)propylmethacrylate silane, 3-aminopropyltri Methoxy silane, 2-aminopropyltrimethoxysilane, N-(2-aminoethyl)-3-aminopropyltrimethoxysilane, N-(2-aminoethyl)-3-aminopropylmethyldimethoxysilane, 3 -Ureidpropyltrimethoxysilane, N-ethoxycarbonyl-3-aminopropyltrimethoxysilane, N-triethoxysilylpropyltriethylenetriamine, N-trimethoxysilylpropyltriethylenetriamine, 10 -Trimethoxysilyl-1,4,7-triazodecane, 10-triethoxysilyl-1,4,7-triazodecane, 9-trimethoxysilyl-3,6-azononylacetate, 3- (triethoxysilyl)propylsuccinic anhydride, N-benzyl-3-aminopropyltrimethoxysilane, N-phenyl-3-aminopropyltrimethoxysilane, N-bis-oxyethylene-3-aminopropyltrimethoxy Silane and (methacryloxy)propyltrimethoxysilane It may include one or more selected from the group consisting of.

According to an embodiment, the silane-based surface treatment agent may be 1 wt% to 10 wt% of the metal oxide dispersion composition for a display.

According to an embodiment, the fatty acid-based dispersant includes a saturated or unsaturated fatty acid compound having 1 to 20 carbon atoms, and ω6 fatty acids including oleic acid, palmitic acid, linoleic acid (LA), and γ-linolenic acid (GLA), α - from the group consisting of linolenic acid (ALA), stearidonic acid (SDA), docosapentaenoic acid (DPA) and docosahexaenoic acid (DHA), polyunsaturated fatty acids (EPA) and eicosatetraenoic acid (ETA) It may include at least any one selected.

According to one embodiment, the phosphoric acid ester-based dispersant is isopropyl acid phosphate, diisopropyl acid phosphate, triisopropyl acid phosphate, butyric acid phosphate, dibutyl acid phosphate, tributylic acid phosphate, octylic acid phosphate, dioctyl acid Phosphate, trioctylic acid phosphate, isodecylic acid phosphate, diisodecylic acid phosphate, triisodecylic acid phosphate, tridecanolic acid phosphate, bis(tridecanolic acid) phosphate, dimethyl acid phosphate, trimethyl acid phosphate, diethyl acid phosphate, Triethyl acid phosphate, dipropyl acid ester, tripropyl acid ester, methyl acid phosphate, ethyl acid phosphate, propyl acid phosphate, benzylic acid phosphate, dibenzyl acid phosphate, tribenzyl acid phosphate, polyoxyethylene nonyl phenol ether phosphate, tri Polyoxyethylene nonyl phenol ether phosphate phosphate, bis(tridecanolic acid) phosphate, ethylene glycol monoethyl phosphate, diethylene glycol monoethyl phosphate, triethylene glycol monoethyl phosphate, diethylene glycol monobutyl diphosphate, diethylene glycol monobutyl It may include at least one selected from the group consisting of phosphate, isopropylene glycol monoethyl phosphate, diisopropylene glycol monoethyl phosphate, and triisopropylene glycol monoethyl phosphate.

According to one embodiment, the dispersant may be 1 wt% to 10 wt% of the metal oxide dispersion composition for a display.

According to an embodiment, the metal oxide particles are ZrO ₂ , SiO ₂ , TiO ₂ , SrTiO ₂ , MgO, Ta ₂ O ₅ , ZrO ₂ -TiO ₂ and SiO ₂ -Fe ₂ O ₃ selected from the group consisting of It may include at least one.

According to an embodiment, the metal oxide particles may be 30 wt% to 70 wt% of the metal oxide dispersion composition for a display.

According to an embodiment, the metal oxide dispersion composition for a display may have a viscosity of 2000 cP or less and a haze of 20% or less.

According to an embodiment, the metal oxide dispersion composition for a display may have a liquid refractive index of 1.5 or more and a yellowness (Y.I) of 50 or less.

A method for preparing a metal oxide dispersion composition for a display according to an embodiment of the present invention includes preparing a mixture solution by adding metal oxide particles, metal oxide particles, and a silane-based surface treatment agent to an organic solvent; preparing a metal oxide-organic solvent dispersion by putting beads in the mixed solution at twice the weight of the metal oxide particles and dispersing; and adding an acrylate-based monomer and a dispersant to the metal oxide-organic solvent dispersion, and removing the organic solvent.

According to an embodiment, the organic solvent is tetrahydrofuran, isopropyl alcohol, n-butanol, ethylene glycol, propylene glycol, methyl ethyl ketone, diethyl ketone, methyl isobutyl ketone, CHN, ethyl acetate, butyl acetate, Propylene glycol monomethyl ether, propylene glycol monomethyl ether acetate, n-hexane, toluene, xylene, styrene, o-methyl styrene, m-methyl styrene, p-methyl styrene, vinyl toluene, p-methoxy styrene, benzyl acryl Late, benzyl methacrylate, phenyl acrylate, diphenyl acrylate, biphenyl acrylate, 2-biphenylyl acrylate, 2-([1,1'-biphenyl]-2-yloxy) ethyl acrylate , Phenoxybenzylacrylate, 3-phenoxybenzyl-3-(1-naphthyl)acrylate, ethyl (2E)-3-hydroxy-2-(3-phenoxybenzyl)acrylate, phenylmethacrylate , Biphenyl methacrylate, 2-nitrophenyl acrylate, 4-nitrophenyl acrylate, 2-nitrophenyl methacrylate, 4-nitrophenyl methacrylate, 2-nitrobenzyl methacrylate, 4-nitrobenzyl methacrylate acrylate, 2-chlorophenyl acrylate, 4-chlorophenyl acrylate, 2-chlorophenyl methacrylate, 4-chlorophenyl methacrylate, ortho-phenylphenol ethyl acrylate, bisphenol diacrylate, urethane (meth) Acrylate, 2-ethylhexyl (meth) acrylate, isobornyl (meth) acrylate, dimethylaminoethyl (meth) acrylate, 2-hydroxyethyl acrylate, 2-hydroxypropyl acrylate, 2-hydroxy Butyl acrylate, methyl ethylene glycol mono (meth) acrylate, methyl triethylene diglycol (meth) acrylate, 1,4-butanediol di (meth) acrylate, neopentyl glycol di (meth) acrylate, hydroxyl Cypivalate neopentyl glycol di(meth)acrylate, dicyclopentanyl di(meth)acrylate, caprolactone-modified dicyclopentanyl di(meth)acrylate, ethylene oxide-modified phosphate di(meth)acrylate, arylated cyclo Hexyldi(meth)acrylate, ethylene glycol di(meth)acrylate, 1,6-hexadiol diacrylate, trimethylolpropane tri(meth)acrylate, pentaerythritol tri( group consisting of meth) acrylate, dipentaerythritol penta (meth) acrylate, dipentaerythritol hexa (meth) acrylate, polyol poly (meth) acrylate, urethane (meth) acrylate and glycerin trimethacrylate It may be to include one or more selected from.

The film composition for a display according to another embodiment of the present invention is for a display prepared by the method for preparing a metal oxide dispersion composition for a display according to an embodiment of the present invention or a metal oxide dispersion composition for a display according to another embodiment of the present invention metal oxide dispersion compositions; UV photoinitiators; and a monomer for UV curing.

According to one embodiment, the UV photoinitiator, an onium salt-based, diazonium salt-based, sulfonium salt-based compound and an imidazole-based photocationic initiator selected from; and thioxanthone-based, phosphorus-based, triazine-based, benzophenone-based, benzoin-based, oxime-based, propanone-based, amino ketone-based, ketone-based, benzoin ether acetophenone-based, anthraquinone-based and aromatic phosphine oxide-based compounds It may include at least one selected from the group consisting of a radical photoinitiator.

According to an embodiment, the UV curing monomer is glycidyl acrylate, glycidyl methacrylate, glycidyl methacrylate, glycidyl-alpha-ethyl acrylate, glycidyl-alpha-ene -Propyl acrylate, glycidyl-alpha-butyl acrylate, 3,4-epoxybutyl methacrylate, 3,4-epoxybutyl acrylate, 6,7-epoxypeptyl methacrylate, 6,7-epoxyheptyl Acrylate, 6,7-epoxyheptyl-alpha-ethyl acrylate, 2-hydroxypropyl acrylate, 2-hydroxyethyl acrylate, tetrahydrofurfuryl acrylate, isobornyl acrylate, 2-hydroxyethyl meta It may include at least one selected from the group consisting of acrylate, tripropylene glycol diacrylate, dipropylene glycol diacrylate, 1,6-hexanediol diacrylate, and trimethylpropane triacrylate.

An optical film for a display according to another embodiment of the present invention is prepared by UV curing the film composition for a display according to an embodiment of the present invention, and has a yellowness (Y.I) of 50 or less.

An optical member for a display according to another embodiment of the present invention includes an optical film for a display according to an embodiment of the present invention.

The titania dispersion composition according to the present invention includes a silane-based surface treatment agent and a phosphoric acid ester-based dispersant, thereby reducing yellowness (Y.I) while implementing low viscosity and high refractive index. Since the metal oxide dispersion composition for a display according to the present invention has a relatively low viscosity, it can be applied as an inkjet printing material requiring low-viscosity properties and has high utility.

In addition, the film composition according to the present invention can manufacture an optical film with improved optical properties and yellowness properties while implementing a high refractive index.

Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. However, since various changes may be made to the embodiments, the scope of the patent application is not limited or limited by these embodiments. It should be understood that all modifications, equivalents and substitutes for the embodiments are included in the scope of the rights.

Terms used in the examples are used for the purpose of description only, and should not be construed as limiting. The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present specification, terms such as “comprise” or “have” are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, but one or more other features It is to be understood that this does not preclude the possibility of the presence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the embodiment belongs. Terms such as those defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present application. does not

In addition, in the description with reference to the accompanying drawings, the same components are assigned the same reference numerals regardless of the reference numerals, and the overlapping description thereof will be omitted. In the description of the embodiment, if it is determined that a detailed description of a related known technology may unnecessarily obscure the gist of the embodiment, the detailed description thereof will be omitted.

In addition, in describing the components of the embodiment, terms such as first, second, A, B, (a), (b), etc. may be used. These terms are only for distinguishing the elements from other elements, and the essence, order, or order of the elements are not limited by the terms.

Components included in one embodiment and components having a common function will be described using the same names in other embodiments. Unless otherwise stated, descriptions described in one embodiment may be applied to other embodiments as well, and detailed descriptions within the overlapping range will be omitted.

Conventional high refractive zirconia dispersions have excellent high refractive properties, but there is a limitation in that the viscosity also increases rapidly as the refractive index increases. To overcome this, an attempt is made to lower the viscosity while maintaining the high refractive index, but the improvement is difficult because the content of the inorganic material cannot be reduced to achieve the target refractive index. In the present invention, the viscosity was lowered by changing the surface treatment agent of the zirconia particles, and by reducing the amount of the zirconia particles, the decrease in refractive index due to the additive was minimized and the optical properties were maintained to prepare a monomer dispersion having high refractive properties and low viscosity properties at the same time.

The metal oxide dispersion composition for a display of the present invention comprises: metal oxide particles; acrylate-based monomers; silane-based surface treatment agent; and a dispersing agent, wherein the dispersing agent includes: a fatty acid-based dispersant; or a dispersing agent in which a phosphate ester-based dispersant and a fatty acid-based dispersant are mixed.

The metal oxide dispersion composition for a display according to the present invention can implement a zirconia monomer dispersion having a viscosity of 2000 cP or less by applying a fatty acid-based dispersant or a dispersant in which a fatty acid-based dispersant and a fatty acid-based and phosphate-based dispersant are mixed in a certain ratio, and a low point It has excellent transparency by reducing the yellowness (Y.I) while implementing the degree and high refractive index. Since the dispersion of the present invention has a relatively low viscosity, it can be applied as an inkjet printing material requiring low viscosity characteristics and can be used in various ways.

According to one embodiment, the dispersing agent in which the phosphate ester-based dispersant and the fatty acid-based dispersant are mixed, the phosphate ester-based dispersant and the fatty acid-based dispersant are mixed in a ratio of 1.5: 1 to 6. By satisfying the above ratio, it is possible to implement a zirconia monomer dispersion having a viscosity of 2000 cP or less.

According to one embodiment, the acrylate-based monomer, as an optical pressure-sensitive adhesive, high transmittance and low haze may be maintained, and may have corrosion resistance to ITO. The acrylate-based resin, as a saturated hydrocarbon-based polymer having no intramolecular double bond, has excellent resistance to oxidation in terms of its intrinsic properties, and thus may have excellent weather resistance.

According to an embodiment, the acrylate-based monomer may be at least one or more esters of acrylic acid or methacrylic acid, and as long as it has an acrylic structure among molecular structures, it may be used regardless of the type thereof.

According to an embodiment, the acrylate-based monomer is O-phenylphenol EO Acrylate (OPPEA), phenol acrylate (Phenol (EO) Acrylate; PHEA), 3- (phenoxyphenyl) Methylpropyl-2-enoate (3-(phenoxyphenyl)methyl prop-2-enoate; PBA), methyl acrylate, ethyl acrylate, propyl acrylate, isopropyl acrylate, butyl acrylate, isobutyl acrylate, t-Butyl acrylate, pentyl acrylate, isopentyl acrylate, 2-ethylhexyl acrylate, isooctyl acrylate, nonyl acrylate, isononyl acrylate, dodecyl acrylate, stearyl acrylate, methyl methacrylate , ethyl methacrylate, propyl methacrylate, isopropyl methacrylate, butyl methacrylate, isobutyl methacrylate, t-butyl methacrylate, pentyl methacrylate, isopentyl methacrylate, 2-ethylhexyl Methacrylate, isooctyl methacrylate, nonyl methacrylate, isononyl methacrylate, dodecyl methacrylate, stearyl methacrylate, 2-ethoxyethoxyethyl acrylate, 2-ethoxyethoxyethyl Methacrylate, methoxyethyl acrylate, methoxyethyl methacrylate, 2-phenoxyethyl acrylate, ethoxylate phenoxy acrylate, 3,3,5-trimethylcyclohexane acrylate, cyclic triethylpropane It may include one or more selected from the group consisting of foam acrylate, benzyl acrylate, isobornyl acrylate, cyclohexyl acrylate and biphenylmethyl acrylate.

According to one embodiment, the acrylate-based monomer may be 20 wt% to 60 wt% of the metal oxide dispersion composition for a display. When the acrylate-based monomer is less than 20% by weight of the metal oxide dispersion composition for a display, there may be problems in which processability is lowered due to an increase in viscosity and lack of functional groups, and when it is more than 60% by weight, the target refractive index cannot be reached.

According to an embodiment, the silane-based surface treatment agent serves to disperse the metal oxide in a solvent by maintaining high transparency and high refractive index in the metal oxide dispersion composition for a display.

According to an embodiment, the silane-based surface treatment agent is γ-methacryloxypropyltrimethoxysilane, 4-aminobutylmethyldiethoxysilane, 3-aminopropyltrimethoxysilane, N-2-aminoethyl-3 -Aminopropyldiethylisopropoxysilane, (mercaptomethyl)dimethylethoxysilane, di-4-mercaptobutyldimethoxysilane, 3-mercaptopropyltriisopropoxysilane, 3-methacryloxypropyldimethyl Toxysilane, 3-acryloxypropyltrimethoxysilane, (3-glycidoxypropyl)methyldimethoxysilane, 2-(3,4-epoxycyclohexyl)ethyltrimethoxysilane, 3-chloropropyltrimethoxy Silane, 4-bromobutylmethyldibutoxysilane, 5-iodohexyldiethylmethoxysilane, 3-isocyanatepropyltrimethoxysilane, 3-isothiocyanatepropylmethyldimethoxysilane, 3-hydroxybutyliso Propyldimethoxysilane, bis(2-hydroxyethyl)-3-aminopropyltriethoxysilane, bromophenyltrimethoxysilane, (2-(iodophenyl)ethyl)ethyldimethoxysilane, bis(chloromethylphenyl) ) Dimethoxysilane, bromomethylphenyldimethylisopropoxysilane, bis(propyltrimethoxysilane)carbodiimide, N-ethyl-N-(propylethoxydimethoxysilane)-carbodiimide, 3-(tri Methoxysilyl)propanol, (3,5-hexadione)triethoxysilane, 3-(trimethoxysilyl)propylacetoacetate, 3-(trimethoxysilyl)propylmethacrylate silane, 3-aminopropyltri Methoxy silane, 2-aminopropyltrimethoxysilane, N-(2-aminoethyl)-3-aminopropyltrimethoxysilane, N-(2-aminoethyl)-3-aminopropylmethyldimethoxysilane, 3 -Ureidpropyltrimethoxysilane, N-ethoxycarbonyl-3-aminopropyltrimethoxysilane, N-triethoxysilylpropyltriethylenetriamine, N-trimethoxysilylpropyltriethylenetriamine, 10 -Trimethoxysilyl-1,4,7-triazodecane, 10-triethoxysilyl-1,4,7-triazodecane, 9-trimethoxysilyl-3,6-azononylacetate, 3- (triethoxysilyl)propylsuccinic anhydride, N-benzyl-3-aminopropyltrimethoxysilane, N-phenyl-3-aminopropyltrimethoxysilane, N-bis-oxyethylene-3-aminopropyltrimethoxy Silane and (methacryloxy)propyltrimethoxysilane It may include one or more selected from the group consisting of.

According to an embodiment, the silane-based surface treatment agent may be 1 wt% to 10 wt% of the metal oxide dispersion composition for a display. When the silane-based surface treatment agent is less than 1% by weight of the metal oxide dispersion composition for a display, the dispersibility of the metal oxide in the dispersion composition is lowered to cause a problem that cloudiness occurs, and when it is more than 10% by weight, the metal Since the silane compound is excessively bound to the surface of the oxide particles, aggregation between the particles may occur, resulting in an increase in viscosity. Preferably, the silane-based surface treatment agent may be 50 wt% to 8 wt% of the metal oxide dispersion composition for a display.

According to one embodiment, the phosphoric acid ester-based dispersant is isopropyl acid phosphate, diisopropyl acid phosphate, triisopropyl acid phosphate, butyric acid phosphate, dibutyl acid phosphate, tributylic acid phosphate, octylic acid phosphate, dioctyl acid Phosphate, trioctylic acid phosphate, isodecylic acid phosphate, diisodecylic acid phosphate, triisodecylic acid phosphate, tridecanolic acid phosphate, bis(tridecanolic acid) phosphate, dimethyl acid phosphate, trimethyl acid phosphate, diethyl acid phosphate, Triethyl acid phosphate, dipropyl acid ester, tripropyl acid ester, methyl acid phosphate, ethyl acid phosphate, propyl acid phosphate, benzylic acid phosphate, dibenzyl acid phosphate, tribenzyl acid phosphate, polyoxyethylene nonyl phenol ether phosphate, tri Polyoxyethylene nonyl phenol ether phosphate phosphate, bis(tridecanolic acid) phosphate, ethylene glycol monoethyl phosphate, diethylene glycol monoethyl phosphate, triethylene glycol monoethyl phosphate, diethylene glycol monobutyl diphosphate, diethylene glycol monobutyl It may include at least one selected from the group consisting of phosphate, isopropylene glycol monoethyl phosphate, diisopropylene glycol monoethyl phosphate, and triisopropylene glycol monoethyl phosphate.

According to one embodiment, the phosphoric acid ester-based dispersant may be 0.5 wt% to 5 wt% of the metal oxide dispersion composition for a display. When the phosphoric acid ester-based dispersant is less than 0.5% by weight of the metal oxide dispersion composition for display, sufficient dispersibility cannot be ensured, resulting in cloudiness in the solution phase, the ring change phenomenon may not be suppressed, and when it exceeds 5% by weight, the molecular weight is Due to the chain entanglement of the large phosphoric acid ester-based dispersant, the viscosity of the dispersion may increase and dispersibility may decrease, and problems may occur in curing and visibility of the coating layer. Preferably, the phosphoric acid ester-based dispersant may be 0.5 wt% to 3 wt% of the metal oxide dispersion composition for a display.

According to an embodiment, the fatty acid-based dispersant includes a saturated or unsaturated fatty acid compound having 1 to 20 carbon atoms, and ω6 fatty acids including oleic acid, palmitic acid, linoleic acid (LA), and γ-linolenic acid (GLA), α - from the group consisting of linolenic acid (ALA), stearidonic acid (SDA), docosapentaenoic acid (DPA) and docosahexaenoic acid (DHA), polyunsaturated fatty acids (EPA) and eicosatetraenoic acid (ETA) It may include at least any one selected.

According to one embodiment, the fatty acid-based dispersant may be 0.5 wt% to 5 wt% of the metal oxide dispersion composition for a display. When the fatty acid-based dispersant is less than 0.5% by weight of the metal oxide dispersion composition for display, the effect of low viscosity and high refractive index is reduced, and when it exceeds 5% by weight, there may be a problem in that the amount of fatty acids separated from the surface increases. Preferably, the fatty acid ester-based dispersant may be 0.5 wt% to 3 wt% of the metal oxide dispersion composition for a display.

According to one embodiment, the dispersant may be 1 wt% to 10 wt% of the metal oxide dispersion composition for a display. It is preferable that the phosphoric acid ester-based dispersant, the fatty acid ester-based dispersant, or the sum of the two do not deviate from the range of 1 wt% to 10 wt%.

According to an embodiment, the metal oxide particles are ZrO ₂ , SiO ₂ , TiO ₂ , SrTiO ₂ , MgO, Ta ₂ O ₅ , ZrO ₂ -TiO ₂ and SiO ₂ -Fe ₂ O ₃ selected from the group consisting of It may include at least one. Preferably, the metal oxide particles may be ZrO ₂ . The ZrO ₂ particles have a high refractive index, substantially no photocatalytic activity, and excellent light resistance and weather resistance.

According to an embodiment, the metal oxide particles may be 30 wt% to 70 wt% of the metal oxide dispersion composition for a display. When the metal oxide particles are included in less than 30% by weight of the metal oxide dispersion composition for display, the luminance of the curable composition is lowered, and there may be a problem in that the optical properties of the cured film produced in the post-process are lowered, and more than 70% by weight may occur. In this case, the dispersion interval between the metal oxide particles is extremely low, so that the viscosity of the dispersion is excessively increased, and there may be a problem in that aggregation between the metal oxide particles occurs.

According to an embodiment, the metal oxide particles may have an average particle size of 5 nm to 40 nm based on D ₅₀ . When the average particle size of the metal oxide particles is less than ₅ nm based on D ₅₀ , a problem may occur that dispersion becomes difficult due to an increase in the surface energy of the particles. There may be problems in which defects and refractive index decrease.

According to an embodiment, the metal oxide dispersion composition for a display may have a viscosity of 2000 cP or less and a haze of 20% or less. When the viscosity of the metal oxide dispersion composition for a display exceeds 2000 cP, the viscosity may become too high, so that it may be difficult to prepare a liquid with an organic material, and when a film for a display is manufactured, a homogeneous film layer may be difficult to form can occur

According to an embodiment, the metal oxide dispersion composition for a display may have a liquid refractive index of 1.5 or more and a yellowness (Y.I) of 50 or less.

The metal oxide dispersion composition for a display according to the present invention has an effect of remarkably improving yellowness compared to a dispersion composition in which only a silane-based surface treatment agent or a phosphoric acid ester-based dispersant is added while implementing a high refractive index of 1.5 or more.

That is, the metal oxide dispersion composition for a display according to the present invention has a characteristic of improving yellowness while implementing high refractive index and low viscosity.

Since the metal oxide dispersion composition for a display according to the present invention has a relatively low viscosity, it can be applied as an inkjet printing material requiring low-viscosity properties and has high utility.

A method for preparing a metal oxide dispersion composition for a display according to an embodiment of the present invention includes preparing a mixture solution by adding metal oxide particles, metal oxide particles, and a silane-based surface treatment agent to an organic solvent; preparing a metal oxide-organic solvent dispersion by putting beads in the mixed solution at twice the weight of the metal oxide particles and dispersing; and adding an acrylate-based monomer and a dispersant to the metal oxide-organic solvent dispersion, and removing the organic solvent.

The method for preparing a metal oxide dispersion composition for a display according to an embodiment of the present invention includes a mixed solution preparation step, a metal oxide-organic solvent dispersion preparation step, and an organic solvent removal step.

According to an embodiment, in the preparing of the mixed solution, the mixed solution may be prepared by adding metal oxide particles, metal oxide particles, and a silane-based surface treatment agent to an organic solvent.

According to an embodiment, the organic solvent is tetrahydrofuran, isopropyl alcohol, n-butanol, ethylene glycol, propylene glycol, methyl ethyl ketone, diethyl ketone, methyl isobutyl ketone, CHN, ethyl acetate, butyl acetate, Propylene glycol monomethyl ether, propylene glycol monomethyl ether acetate, n-hexane, toluene, xylene, styrene, o-methyl styrene, m-methyl styrene, p-methyl styrene, vinyl toluene, p-methoxy styrene, benzyl acryl Late, benzyl methacrylate, phenyl acrylate, diphenyl acrylate, biphenyl acrylate, 2-biphenylyl acrylate, 2-([1,1'-biphenyl]-2-yloxy) ethyl acrylate , Phenoxybenzylacrylate, 3-phenoxybenzyl-3-(1-naphthyl)acrylate, ethyl (2E)-3-hydroxy-2-(3-phenoxybenzyl)acrylate, phenylmethacrylate , Biphenyl methacrylate, 2-nitrophenyl acrylate, 4-nitrophenyl acrylate, 2-nitrophenyl methacrylate, 4-nitrophenyl methacrylate, 2-nitrobenzyl methacrylate, 4-nitrobenzyl methacrylate acrylate, 2-chlorophenyl acrylate, 4-chlorophenyl acrylate, 2-chlorophenyl methacrylate, 4-chlorophenyl methacrylate, ortho-phenylphenol ethyl acrylate, bisphenol diacrylate, urethane (meth) Acrylate, 2-ethylhexyl (meth) acrylate, isobornyl (meth) acrylate, dimethylaminoethyl (meth) acrylate, 2-hydroxyethyl acrylate, 2-hydroxypropyl acrylate, 2-hydroxy Butyl acrylate, methyl ethylene glycol mono (meth) acrylate, methyl triethylene diglycol (meth) acrylate, 1,4-butanediol di (meth) acrylate, neopentyl glycol di (meth) acrylate, hydroxyl Cypivalate neopentyl glycol di(meth)acrylate, dicyclopentanyl di(meth)acrylate, caprolactone-modified dicyclopentanyl di(meth)acrylate, ethylene oxide-modified phosphate di(meth)acrylate, arylated cyclo Hexyldi(meth)acrylate, ethylene glycol di(meth)acrylate, 1,6-hexadiol diacrylate, trimethylolpropane tri(meth)acrylate, pentaerythritol tri( group consisting of meth) acrylate, dipentaerythritol penta (meth) acrylate, dipentaerythritol hexa (meth) acrylate, polyol poly (meth) acrylate, urethane (meth) acrylate and glycerin trimethacrylate It may be to include one or more selected from. Preferably, tetrahydrofuran may be used.

According to an embodiment, the metal oxide particles are ZrO ₂ , SiO ₂ , TiO ₂ , SrTiO ₂ , MgO, Ta ₂ O ₅ , ZrO ₂ -TiO ₂ and SiO ₂ -Fe ₂ O ₃ selected from the group consisting of It may include at least one. Preferably, the metal oxide particles may be ZrO ₂ .

According to one embodiment, in the metal oxide dispersion composition for a display, the silane-based surface treatment agent is as described above.

According to an embodiment, after the silane-based surface treatment agent is added to the organic solvent, the mixture may be mixed using a stirrer bar at a temperature of 20°C to 30°C for 5 minutes to 20 minutes.

According to one embodiment, the metal oxide-organic solvent dispersion preparation step is to prepare a metal oxide-organic solvent dispersion by putting beads in the mixed solution at twice the weight of the metal oxide particles and dispersing them. .

According to an embodiment, the beads include at least one selected from the group consisting of zirconia, yttria, yttria stabilized zirconia, alumina, titanium dioxide, magnesia, silicon carbide, tungsten carbide, titanium carbide, and silicon nitride. may be doing

According to one embodiment, after the beads are added to the mixed solution, the metal oxide particles may be dispersed for 2 to 4 hours using a paint shaker.

According to an embodiment, the step of removing the organic solvent may include adding an acrylate-based monomer and a dispersant to the metal oxide-organic solvent dispersion and removing the organic solvent.

According to one embodiment, in the metal oxide dispersion composition for a display, the acrylate-based monomer and the dispersant are as described above.

By using a syringe filter of 1 μm to filter out the undispersed large metal oxide particles in the metal oxide-organic solvent dispersion, and the organic solvent is removed by vacuum decompression in the final step, a solvent-free dispersion composition for display can be manufactured.

The film composition for a display according to another embodiment of the present invention is for a display prepared by the method for preparing a metal oxide dispersion composition for a display according to an embodiment of the present invention or a metal oxide dispersion composition for a display according to another embodiment of the present invention metal oxide dispersion compositions; UV photoinitiators; and a monomer for UV curing.

According to an embodiment, the UV photoinitiator may include a photocationic initiator, a radical photoinitiator, or both.

According to one embodiment, the UV photoinitiator, an onium salt-based, diazonium salt-based, sulfonium salt-based compound and an imidazole-based photocationic initiator selected from; and thioxanthone-based, phosphorus-based, triazine-based, benzophenone-based, benzoin-based, oxime-based, propanone-based, amino ketone-based, ketone-based, benzoin ether acetophenone-based, anthraquinone-based and aromatic phosphine oxide-based compounds It may include at least one selected from the group consisting of a radical photoinitiator.

According to an embodiment, the UV photoinitiator may be 2 wt% to 5 wt% of the film composition for a display. When the UV photoinitiator is less than 2% by weight of the film composition for display, curing of the film composition may not be sufficiently achieved and it may be difficult to secure appropriate hardness. can

According to one embodiment, the UV curing monomer may include an acrylate-based resin. The acrylate-based resin is a saturated hydrocarbon-based polymer having no intramolecular double bond, and has excellent resistance to oxidation in terms of its intrinsic properties, and thus has excellent weather resistance.

According to an embodiment, the UV curing monomer is glycidyl acrylate, glycidyl methacrylate, glycidyl methacrylate, glycidyl-alpha-ethyl acrylate, glycidyl-alpha-ene -Propyl acrylate, glycidyl-alpha-butyl acrylate, 3,4-epoxybutyl methacrylate, 3,4-epoxybutyl acrylate, 6,7-epoxypeptyl methacrylate, 6,7-epoxyheptyl Acrylate, 6,7-epoxyheptyl-alpha-ethyl acrylate, 2-hydroxypropyl acrylate, 2-hydroxyethyl acrylate, tetrahydrofurfuryl acrylate, isobornyl acrylate, 2-hydroxyethyl meta It may include at least one selected from the group consisting of acrylate, tripropylene glycol diacrylate, dipropylene glycol diacrylate, 1,6-hexanediol diacrylate, and trimethylpropane triacrylate.

According to one embodiment, the film composition for a display according to the present invention may further include an acrylic resin.

According to an embodiment, the acrylic resin is hydroxyethyl acrylate (HEA), hydroxyethyl methacrylate (HEMA), hexanediol diacrylate (HDDA), tripropylene glycol diacrylate (TPGDA), ethylene Glycol diacrylate (EGDA), trimethylolpropane triacrylate (TMPTA), trimethylolpropaneethoxy triacrylate (TMPEOTA), glycerin propoxylated triacrylate (GPTA), pentaerythritol tetraacrylate (PETA) , benzyl methacrylate, phenyl acrylate, diphenyl acrylate, biphenyl acrylate, 2-biphenylyl acrylate, 2-([1,1'-biphenyl] -2-yloxy) ethyl acrylate, Phenoxybenzyl acrylate, 3-phenoxybenzyl-3- (1-naphthyl) acrylate, phenyl methacrylate, biphenyl methacrylate, 2-nitrophenyl acrylate, 4-nitrophenyl acrylate, 2- It may include one or more selected from the group consisting of nitrophenyl methacrylate, 4-nitrophenyl methacrylate, and dipentaerythritol hexaacrylate (DPHA).

The film composition according to an embodiment of the present invention can prepare a low-viscosity composition, and can improve the color of the film from yellowing.

An optical film for a display according to another embodiment of the present invention is prepared by UV curing the film composition for a display according to an embodiment of the present invention, and has a yellowness (Y.I) of 50 or less.

The optical film for a display according to the present invention has a characteristic of reducing yellowness while implementing a high refractive index of 1.65 or more. Preferably, a high refractive index of 1.69 is realized.

An optical member for a display according to another embodiment of the present invention includes an optical film for a display according to an embodiment of the present invention.

According to an embodiment, the optical member for display may include a polarizing film, a prism sheet, an AR sheet, and the like.

Hereinafter, the present invention will be described in detail with reference to the following Examples and Comparative Examples. However, the technical spirit of the present invention is not limited or limited thereto.

[Example 1]

40 wt% of zirconia powder having a primary particle size of 10 nm in tetrahydrofuran (THF) as an organic solvent, methacryloxypropylmethoxy silane (MPS) as a silane-based surface treatment agent (3-(methacryloxypropylmethoxy silane; MPS) (Sigma Aldrich) ) 5 wt% was added, and the mixture was prepared using a stirrer bar After sufficient stirring, 0.05 mm zirconia beads were added by twice the weight of the mixture, and then using a paint shaker, a dispersion having a zirconia content of 40% Here, 30% by weight of 3-(phenoxyphenyl)methylpropyl-2-enoate (3-(phenoxyphenyl)methyl prop-2-enoate; PBA) as an acrylate-based monomer, and a phosphoric acid ester-based dispersant , Plysurf AL (DKS) 1.8% by weight, ED401 (Hiplaad) 1.2% by weight as a fatty acid-based dispersant was added, and the undispersed large metal oxide particles were filtered using a 1 μm syringe filter, and then reduced pressure to tetrahydrogen A high refractive index dispersion composition for a display was prepared by removing hydrofuran (THF).

[Example 2]

Metal oxide dispersion composition in the same manner as in Example 1, except that in Example 1, 1.2 wt% of Plysurf AL (DKS) and 1.8 wt% of ED401 (Hiplaad) as a fatty acid-based dispersant were added as a phosphoric acid ester-based dispersant. was prepared.

[Example 3]

Metal oxide dispersion composition in the same manner as in Example 1, except that in Example 1, 0.6 wt% of Plysurf AL (DKS) and 2.4 wt% of ED401 (Hiplaad) as a fatty acid-based dispersant were added as a phosphoric acid ester-based dispersant. was prepared.

[Example 4]

In Example 1, a metal oxide dispersion composition was prepared in the same manner as in Example 1, except that only 3% by weight of ED401 (Hiplaad) was added as a fatty acid-based dispersant.

[Comparative Example 1]

In Example 1, a metal oxide dispersion composition was prepared in the same manner as in Example 1, except that 2.4 wt% of Plysurf AL (DKS) as a phosphoric acid ester-based dispersant and 0.6 wt% of ED401 (Hiplaad) as a fatty acid-based dispersant were added. prepared.

[Comparative Example 2]

In Example 1, a metal oxide dispersion composition was prepared in the same manner as in Example 1, except that only 3 wt% of Plysurf AL (DKS) was added as a phosphoric acid ester-based dispersant.

[Comparative Example 3]

In Example 1, as a dispersant, a metal oxide dispersion composition was prepared in the same manner as in Example 1, except that only 3 wt% of ED154 (Hiplaad) was added.

Table 1 below shows the results of measuring refractive index, viscosity, Haze and Y.I as component content and physical properties for the dispersion composition for display of Examples 1 to 4 of the present invention and the dispersant composition of Comparative Examples 1 to 3 of the present invention. It was.

Example 1 Example 2 Example
3 Example 4 Comparative Example 1 Comparative Example 2 Comparative Example 3 mineral ZrO ₂ 60 60 60 60 60 60 60 organic matter 3-(phenoxyphenyl)methyl prop-2-enoate 30 30 30 30 30 30 30 surface treatment agent MPS 7 7 7 7 7 7 7 dispersant Plysurf AL 1.8 1.2 0.6 - 2.4 3 - ED401 1.2 1.8 2.4 3 0.6 - - ED154 - - - - - - 3 Properties refractive index 1.69 1.69 1.69 1.69 1.69 1.69 1.69 viscosity
(cp) 1,817 1,420 1,240 894 2,528 2,528 8,300 Haze (%) 12.3 16.0 12.2 19.8 10.6 12.6 21.9 Y.I. 35.5 37.2 40.4 47.1 35.1 35.6 38.2

As can be seen from the results of Table 1, by applying a fatty acid-based dispersant (Example 4) or a dispersant (Example 1 to Example 3) in which a fatty acid-based dispersant and a phosphate-based dispersant are mixed in a certain ratio, the viscosity of 2000 cP or less It was confirmed that a dispersion composition of metal oxide particles for a display having a refractive index of 1.69 or more and a Y.I of 50 or less could be prepared.

As described above, although the embodiments have been described with reference to the limited drawings, those skilled in the art may apply various technical modifications and variations based on the above. For example, the described techniques are performed in a different order than the described method, and/or the described components of the system, structure, apparatus, circuit, etc. are combined or combined in a different form than the described method, or other components Or substituted or substituted by equivalents may achieve an appropriate result.

Therefore, other implementations, other embodiments, and equivalents to the claims are also within the scope of the following claims.

Claims (20)

metal oxide particles;
acrylate-based monomers;
silane-based surface treatment agent; and
dispersant;
including,
The dispersant is
fatty acid-based dispersants; or a dispersing agent in which a phosphate ester-based dispersant and a fatty acid-based dispersant are mixed;
The fatty acid-based dispersant includes a saturated or unsaturated fatty acid compound having 1 to 20 carbon atoms,
ω6 fatty acids including oleic acid, palmitic acid, linoleic acid (LA), γ-linolenic acid (GLA), α-linolenic acid (ALA), stearidonic acid (SDA), docosapentaenoic acid (DPA) and docosahexaenoic acid (DHA), polyunsaturated fatty acid (EPA), and at least one selected from the group consisting of eicosatetraenoic acid (ETA),
The fatty acid-based dispersant is 1 wt% to 10 wt% of the metal oxide dispersion composition for display,
A metal oxide dispersion composition for a display.
According to claim 1,
The dispersant in which the phosphate ester-based dispersant and the fatty acid-based dispersant are mixed,
The phosphate ester-based dispersant and the fatty acid-based dispersant are mixed in a weight ratio of 1.5: 1 to 6,
A metal oxide dispersion composition for a display.
According to claim 1,
The acrylate-based monomer,
O-phenylphenol EO Acrylate (OPPEA), phenol acrylate (Phenol(EO) Acrylate; PHEA), 3-(phenoxyphenyl)methylpropyl-2-enoate (3-(phenoxyphenyl) )methyl prop-2-enoate; PBA), methyl acrylate, ethyl acrylate, propyl acrylate, isopropyl acrylate, butyl acrylate, isobutyl acrylate, t-butyl acrylate, pentyl acrylate, isopentyl acrylate Rate, 2-ethylhexyl acrylate, isooctyl acrylate, nonyl acrylate, isononyl acrylate, dodecyl acrylate, stearyl acrylate, methyl methacrylate, ethyl methacrylate, propyl methacrylate, isopropyl Methacrylate, butyl methacrylate, isobutyl methacrylate, t-butyl methacrylate, pentyl methacrylate, isopentyl methacrylate, 2-ethylhexyl methacrylate, isooctyl methacrylate, nonyl methacrylate Rate, isononyl methacrylate, dodecyl methacrylate, stearyl methacrylate, 2-ethoxyethoxyethyl acrylate, 2-ethoxyethoxyethyl methacrylate, methoxyethyl acrylate, methoxyethyl Methacrylate, 2-phenoxyethyl acrylate, ethoxylate phenoxy acrylate, 3,3,5-trimethylcyclohexane acrylate, cyclic triethylpropane formal acrylate, benzyl acrylate, isobornyl acrylate, Which comprises at least one selected from the group consisting of cyclohexyl acrylate and biphenylmethyl acrylate,
A metal oxide dispersion composition for a display.
According to claim 1,
The acrylate-based monomer is 20% to 60% by weight of the metal oxide dispersion composition for the display,
A metal oxide dispersion composition for a display.
According to claim 1,
The silane-based surface treatment agent,
γ-methacryloxypropyltrimethoxysilane, 4-aminobutylmethyldiethoxysilane, 3-aminopropyltrimethoxysilane, N-2-aminoethyl-3-aminopropyldiethylisopropoxysilane, (mercapto methyl) dimethylethoxysilane, di-4-mercaptobutyldimethoxysilane, 3-mercaptopropyltriisopropoxysilane, 3-methacryloxypropyldimethylethoxysilane, 3-acryloxypropyltrimethoxysilane, (3-glycidoxypropyl)methyldimethoxysilane, 2-(3,4-epoxycyclohexyl)ethyltrimethoxysilane, 3-chloropropyltrimethoxysilane, 4-bromobutylmethyldibutoxysilane, 5 -Iodohexyldiethylmethoxysilane, 3-isocyanatepropyltrimethoxysilane, 3-isothiocyanatepropylmethyldimethoxysilane, 3-hydroxybutylisopropyldimethoxysilane, bis(2-hydroxyethyl) -3-Aminopropyltriethoxysilane, bromophenyltrimethoxysilane, (2-(iodophenyl)ethyl)ethyldimethoxysilane, bis(chloromethylphenyl)dimethoxysilane, bromomethylphenyldimethylisopropoxysilane , bis(propyltrimethoxysilane)carbodiimide, N-ethyl-N-(propylethoxydimethoxysilane)-carbodiimide, 3-(trimethoxysilyl)propanol, (3,5-hexadione ) Triethoxysilane, 3-(trimethoxysilyl)propylacetoacetate, 3-(trimethoxysilyl)propylmethacrylate silane, 3-aminopropyltrimethoxysilane, 2-aminopropyltrimethoxysilane, N-(2-aminoethyl)-3-aminopropyltrimethoxysilane, N-(2-aminoethyl)-3-aminopropylmethyldimethoxysilane, 3-ureidepropyltrimethoxysilane, N-ethoxy Carbonyl-3-aminopropyltrimethoxysilane, N-triethoxysilylpropyltriethylenetriamine, N-trimethoxysilylpropyltriethylenetriamine, 10-trimethoxysilyl-1,4,7-triamine Zodecane, 10-triethoxysilyl-1,4,7-triazodecane, 9-trimethoxysilyl-3,6-azononylacetate, 3-(triethoxysilyl)propylsuccinic anhydride, N-benzyl with -3-aminopropyltrimethoxysilane, N-phenyl-3-aminopropyltrimethoxysilane, N-bis-oxyethylene-3-aminopropyltrimethoxysilane and (methacryloxy)propyltrimethoxysilane comprising at least one selected from the group consisting of that is,
A metal oxide dispersion composition for a display.
According to claim 1,
The silane-based surface treatment agent, 1 wt% to 10 wt% of the metal oxide dispersion composition for the display,
A metal oxide dispersion composition for a display.
According to claim 1,
The phosphoric acid ester-based dispersant,
Isopropyl acid phosphate, diisopropyl acid phosphate, triisopropyl acid phosphate, butyric acid phosphate, dibutylic acid phosphate, tributylic acid phosphate, octylic acid phosphate, dioctyl acid phosphate, trioctylic acid phosphate, isodecylic acid phosphate, di Isodecylic acid phosphate, triisodecylic acid phosphate, tridecanolic acid phosphate, bis(tridecanolic acid) phosphate, dimethyl acid phosphate, trimethyl acid phosphate, diethyl acid phosphate, triethyl acid phosphate, dipropyl acid ester, tripropyl acid Ester, methyl acid phosphate, ethyl acid phosphate, propyl acid phosphate, benzylic acid phosphate, dibenzylic acid phosphate, tribenzyl acid phosphate, polyoxyethylene nonyl phenol ether phosphate, tripolyoxyethylene nonyl phenol ether phosphate phosphate, bis(tridecane Olic acid) phosphate, ethylene glycol monoethyl phosphate, diethylene glycol monoethyl phosphate, triethylene glycol monoethyl phosphate, diethylene glycol monobutyl diphosphate, diethylene glycol monobutyl phosphate, isopropylene glycol monoethyl phosphate, diisopropylene glycol Which comprises at least one selected from the group consisting of monoethyl phosphate, triisopropylene glycol monoethyl phosphate,
A metal oxide dispersion composition for a display.
delete According to claim 1,
The dispersant is, 1 wt% to 10 wt% of the metal oxide dispersion composition for the display,
A metal oxide dispersion composition for a display.
According to claim 1,
The metal oxide particles,
ZrO ₂ , SiO ₂ , TiO ₂ , SrTiO ₂ , MgO, Ta ₂ O ₅ , ZrO ₂ -TiO ₂ and SiO ₂ -Fe ₂ O ₃ Which comprises at least one selected from the group consisting of,
A metal oxide dispersion composition for a display.
According to claim 1,
The metal oxide particles, 30% to 70% by weight of the metal oxide dispersion composition for the display,
A metal oxide dispersion composition for a display.
According to claim 1,
The metal oxide dispersion composition for the display,
a viscosity of 2000 cP or less,
Haze of 20% or less,
A metal oxide dispersion composition for a display.
According to claim 1,
The metal oxide dispersion composition for the display,
The liquidus refractive index is 1.5 or more,
The yellowness (YI) is 50 or less,
A metal oxide dispersion composition for a display.
preparing a mixed solution by adding metal oxide particles, metal oxide particles, and a silane-based surface treatment agent to an organic solvent;
preparing a metal oxide-organic solvent dispersion by putting beads in the mixed solution at twice the weight of the metal oxide particles and dispersing; and
adding an acrylate-based monomer and a dispersing agent to the metal oxide-organic solvent dispersion, and removing the organic solvent;
including,
The dispersing agent, a fatty acid-based dispersing agent; or a dispersing agent in which a phosphate ester-based dispersant and a fatty acid-based dispersant are mixed;
The fatty acid-based dispersant includes a saturated or unsaturated fatty acid compound having 1 to 20 carbon atoms,
ω6 fatty acids including oleic acid, palmitic acid, linoleic acid (LA), γ-linolenic acid (GLA), α-linolenic acid (ALA), stearidonic acid (SDA), docosapentaenoic acid (DPA) and docosahexaenoic acid (DHA), polyunsaturated fatty acids (EPA), and at least one selected from the group consisting of eicosatetraenoic acid (ETA),
The fatty acid-based dispersant, 1 wt% to 10 wt% of the metal oxide dispersion composition for the display,
A method for preparing a metal oxide dispersion composition for a display.
15. The method of claim 14,
The organic solvent is
Tetrahydrofuran, isopropyl alcohol, n-butanol, ethylene glycol, propylene glycol, methyl ethyl ketone, diethyl ketone, methyl isobutyl ketone, CHN, ethyl acetate, butyl acetate, propylene glycol monomethyl ether, propylene glycol monomethyl ether Acetate, n-hexane, toluene, xylene, styrene, o-methylstyrene, m-methylstyrene, p-methylstyrene, vinyl toluene, p-methoxy styrene, benzyl acrylate, benzyl methacrylate, phenyl acrylate, Diphenyl acrylate, biphenyl acrylate, 2-biphenylyl acrylate, 2-([1,1'-biphenyl] -2-yloxy) ethyl acrylate, phenoxybenzyl acrylate, 3-phenoxy Benzyl-3-(1-naphthyl)acrylate, ethyl (2E)-3-hydroxy-2-(3-phenoxybenzyl)acrylate, phenyl methacrylate, biphenyl methacrylate, 2-nitrophenyl Acrylate, 4-nitrophenyl acrylate, 2-nitrophenyl methacrylate, 4-nitrophenyl methacrylate, 2-nitrobenzyl methacrylate, 4-nitrobenzyl methacrylate, 2-chlorophenyl acrylate, 4 -Chlorophenyl acrylate, 2-chlorophenyl methacrylate, 4-chlorophenyl methacrylate, ortho-phenylphenol ethyl acrylate, bisphenol diacrylate, urethane (meth) acrylate, 2-ethylhexyl (meth) acrylic Late, isobornyl (meth) acrylate, dimethylaminoethyl (meth) acrylate, 2-hydroxyethyl acrylate, 2-hydroxypropyl acrylate, 2-hydroxybutyl acrylate, methylethylene glycol mono (meth) ) acrylate, methyltriethylenediglycol (meth)acrylate, 1,4-butanediol di(meth)acrylate, neopentylglycol di(meth)acrylate, hydroxypivalate neopentylglycol di(meth)acrylate , dicyclopentanyl di(meth)acrylate, caprolactone-modified dicyclofentanyl di(meth)acrylate, ethylene oxide-modified phosphate di(meth)acrylate, arylated cyclohexyldi(meth)acrylate, ethylene glycol di (meth)acrylate, 1,6-hexadiol diacrylate, trimethylolpropane tri(meth)acrylate, pentaerythritol tri(meth)acrylate, dipentaerythritol penta(meth) ) acrylate, dipentaerythritol hexa (meth) acrylate, polyol poly (meth) acrylate, urethane (meth) acrylate and glycerin trimethacrylate comprising at least one selected from the group consisting of,
A method for preparing a metal oxide dispersion composition for a display.
A metal oxide dispersion composition for a display prepared by the method for preparing the metal oxide dispersion composition for a display of claim 1 or the metal oxide dispersion composition for a display of claim 14;
UV photoinitiators; and
UV curing monomers;
containing,
A film composition for a display.
17. The method of claim 16,
The UV photoinitiator is
a photocationic initiator selected from onium salt-based, diazonium salt-based, sulfonium salt-based compounds and imidazole-based compounds; and
Thioxanthone-based, phosphorus-based, triazine-based, benzophenone-based, benzoin-based, oxime-based, propanone-based, amino ketone-based, ketone-based, benzoin ether acetophenone-based, anthraquinone-based and aromatic phosphine oxide-based compounds radical photoinitiators;
Which comprises at least any one selected from the group consisting of
A film composition for a display.
17. The method of claim 16,
The UV curing monomer is
Glycidyl acrylate, glycidyl methacrylate, glycidyl methacrylate, glycidyl-alpha-ethyl acrylate, glycidyl-alpha-ene-propyl acrylate, glycidyl-alpha-butylacrylic rate, 3,4-epoxybutyl methacrylate, 3,4-epoxybutyl acrylate, 6,7-epoxypeptyl methacrylate, 6,7-epoxyheptyl acrylate, 6,7-epoxyheptyl-alpha-ethyl Acrylates, 2-hydroxypropyl acrylate, 2-hydroxyethyl acrylate, tetrahydrofurfuryl acrylate, isobornyl acrylate, 2-hydroxyethyl methacrylate, tripropylene glycol diacrylate, dipropylene glycol which comprises at least one selected from the group consisting of diacrylate, 1,6-hexanediol diacrylate, and trimethylpropane triacrylate,
A film composition for a display.
It is prepared by UV curing the film composition for display of claim 16,
yellowness (YI) of 50 or less;
Optical film for display.
Including the optical film for display of claim 19,
Optical member for display.