KR20140045788A - Composition for forming anti-glare coat layer, anti-glare film, polarizing plate and display device - Google Patents

Abstract

The present invention relates to a composition for forming an anti-glare coat layer, and more specifically, to a composition for forming an anti-glare coat layer which contains a colloid silica particle, polymer electrolyte, a reactive (meth)acrylate resin, a photo initiator, and a solvent, wherein the solvent is a mixed solvent obtained by mixing an organic protic solvent and an organic non-protic solvent in a weight ratio of 1:9-9:1, thereby easily producing a coagulation unit by the colloid silica particle.

Description

TECHNICAL FIELD The present invention relates to a composition for forming an antiglare layer, an antiglare film, a polarizing plate, and a display device.

The present invention relates to a composition for forming an antiglare layer, an antiglare film, a polarizing plate and a display device.

An image display apparatus includes a liquid crystal display (LCD), an electroluminescent (EL) display, a plasma display (PDP), a field emission display (FED), and the like.

When these various image display devices are exposed to external light such as natural light or illumination light, the light incident on the surface of the image display device is reflected, and the contrast is lowered. In addition, the screen becomes dazzling and difficult to recognize the characters, which easily increases the fatigue of the eyes or causes a headache.

In order to solve such a problem, an antiglare film having a function of inducing irregular reflection of light by the surface protruding portion to reduce reflection of light and disposed on the surface of various image display devices has been mainly used.

The antiglare film is formed by applying a resin containing filler particles such as silica or resin beads to the surface of the transparent base film. It is preferable that the resin film And surface irregularities are formed by adding organic filler particles having a larger particle diameter than the thickness.

Meanwhile, Korean Laid-Open Patent Publication No. 2010-0073365 discloses an antiglare film having an antiglare layer including a silica sol and an ultraviolet curable resin.

However, the anti-glare film according to the document is difficult to form the surface irregularities by the silica sol alone, the anti-glare of the produced anti-glare film when used in the display has a problem that the glare of the entire display is severe and difficult to recognize the character.

An object of the present invention is to provide a composition for forming an antiglare layer which can form agglomerated portions of colloidal silica particles in a coating layer only by controlling the mixing ratio of a quantum solvent and an aprotic solvent, and a haze having a low and high definition antiglare film.

In order to achieve the object of the present invention, colloidal silica particles, a polymer electrolyte, a reactive (meth) acrylate resin, including a photoinitiator and a solvent, the solvent is an organic quantum solvent and an organic aprotic solvent 1: 9 to 9 It provides the composition for anti-glare layer forming which uses the mixed solvent mixed in a 1 weight ratio.

Preferably the mixed solvent may be mixed in a weight ratio of 3: 7 to 7: 3.

The organic proton solvent consists of methanol, ethanol, propanol, isopropanol, butanol, isobutanol, methyl glycol, methyl glycol acetate, ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monobutyl ether and propylene glycol methyl ether. It may be one or more selected from the group.

The organic aprotic solvent may be one or more selected from the group consisting of toluene, xylene, benzene, ethyl acetate, butyl acetate, propylene glycol methyl ether acetate.

The colloidal silica particles may be an average particle diameter of 0.001 ~ 200nm.

The anti-glare layer-forming composition is 0.4 to 2.0 parts by weight of silica particles, 0.05 to 1.0 parts by weight of a polymer electrolyte, 92 to 98 parts by weight of a reactive (meth) acrylate resin, and photoinitiator 2 based on 100 parts by weight of the total solids, excluding the mixed solvent. It consists of ~ 8 parts by weight, the ratio of the solid and the mixed solvent may be 1: 9 to 9: 1.

The antiglare layer-forming composition may further include at least one additive selected from the group consisting of antioxidants, UV absorbers, light stabilizers, leveling agents, surfactants, and antifouling agents.

In addition, in order to achieve the object of the present invention, it provides an antiglare film comprising an antiglare layer formed using the composition for forming an antiglare layer.

Dispersion value of the anti-glare layer height is 0.05 ~ 0.3um ² , kurtosis value may be 0 to 4.

In order to achieve the object of the present invention, there is also provided a polarizing plate and a display device, which comprises the antiglare film.

The display device may be selected from the group consisting of a liquid crystal display device, a cathode-ray tube display device, a plasma display, and a touch panel type input device.

In the composition for forming an antiglare layer according to the present invention, colloidal silica does not form a precipitate in the composition for forming an antiglare layer, thereby providing excellent coating properties in the production of an antiglare film, and the antiglare film prepared using the same is transmitted to the antiglare layer. There is an advantage that can be uniformly scattered light. In addition, there is an advantage that the aggregation part by the colloidal silica particles can be effectively and simply produced only by controlling the mixing ratio of the quantum solvent and the aprotic solvent.

The present invention includes a colloidal silica particle, a polymer electrolyte, a reactive (meth) acrylate resin, a photoinitiator and a solvent, wherein the solvent is mixed with an organic quantum solvent and an organic aprotic solvent in a 1: 9 to 9: 1 weight ratio. It is related with the composition for anti-glare layer forming which uses a mixed solvent.

Hereinafter, the present invention will be described in more detail, but it is for the purpose of illustrating the present invention and is not intended to limit the scope of the present invention.

Colloidal silica particles are used to form irregularities on the surface of the antiglare layer. Colloidal silica particles are dissolved on the antiglare layer-forming composition without being precipitated. However, when the antiglare layer forming composition forms an antiglare layer on the substrate through an application step, a drying step, and a curing step, the colloidal silica particles are aggregated to form concavities and convexities on the surface of the antiglare layer.

Colloidal silica particles include colloidal silica having an average particle diameter of 0.001 to 200 nm. Colloidal silica particles can be spherical, cavity, porous, rod-shaped, plate-shaped, fibrous or intangible.

Colloidal silica particles may be coated with a silane coupling agent. Specifically, the silane coupling agent is methyltrimethoxysilane, dimethyldimethoxysilane, phenyltrimethoxysilane, diphenyldimethoxysilane, methyltriethoxysilane, dimethyldiethoxysilane, phenyltriethoxysilane, diphenyldiethoxy Silane, isobutyltrimethoxysilane, vinyltrimethoxysilane, vinyltriethoxysilane, vinyltris (β-methoxyethoxy) silane, 3,3,3-trifluoropropyltrimethoxysilane, methyl-3 , 3,3-trifluoropropyldimethoxysilane, β- (3,4-epoxycyclohexyl) ethyltrimethoxysilane, β-glycidoxymethyltrimethoxysilane, β-glycidoxymethyltriethoxysilane , γ-glycidoxyethyltrimethoxysilane, γ-glycidoxyethyltriethoxysilane, γ-glycidoxypropyltrimethoxysilane, γ-glycidoxypropyltriethoxysilane, γ- (β- Glycidoxy methoxy) propyl trimethoxysilane, (gamma)-(meth) acrylooxymethyl trimethoxysilane, (gamma)- (Meth) acrylooxymethyltriethoxysilane, (gamma)-(meth) acrylooxyethyltrimethoxysilane, (gamma)-(meth) acrylooxyethyl triethoxysilane, (gamma)-(meth) acrylooxypropyl tree Methoxysilane, γ- (meth) acrylooxypropyltrimethoxysilane, γ- (meth) acryloxyoxytriethoxysilane, butyltrimethoxysilane, isobutyltriethoxysilane, hexyltriethoxysilane Butyltriethoxysilane, decyltriethoxysilane, butyltriethoxysilane, isobutyltriethoxysilane, hexyltriethoxysilane, octyltriethoxysilane, 3-ureidoisopropylpropyltriethoxysilane, perfluorooctyl Ethyltrimethoxysilane, perfluorooctylethyltriethoxysilane, perfluorooctylethyltriisopropoxysilane, tripleuropropyltrimethoxysilane, N-β (aminoethyl) γ-aminopropylmethyldimethoxysilane, N-β aminoethyl) γ-amino At least one member selected from the peel trimethoxysilane, N- phenyl -γ- aminopropyltrimethoxysilane, γ- mercaptopropyl trimethoxysilane, trimethyl silanol, a group consisting of silane as methyltrichlorosilane can be used.

The dispersion medium for the colloidal silica may be water, an organic solvent or a mixture of water and an organic solvent. When the dispersion medium is water, an acidic colloidal silica of preferably pH 2-10, preferably pH 3-7 may be used. When the dispersion medium is an organic solvent, methanol, isopropyl alcohol, ethylene glycol, butanol, ethylene glycol monopropyl ether, methyl ethyl ketone, methyl isobutyl ketone, toluene, xylene and dimethyl formamide may be used. When the dispersion medium is a mixture of organic solvent and water, the dispersion medium may be methanol, isopropyl alcohol, methyl ethyl ketone or methyl isobutyl ketone.

Colloidal silica dispersed in the fluid is stabilized by the Columbic repulsion between the colloidal silica particles formed of an electric double layer. The polymer electrolyte is used as a tangle agent for forming irregularities on the surface of the coating layer during coating by destroying the electric double layer of the colloidal particles and lowering the charge to induce tangle of the colloidal silica.

According to Schulze-Hardy's law, the polyelectrolyte promotes entanglement as the valence is larger or larger as the amount of cations. In the case of anion, as the number of atoms is smaller, the ions are promoted as ions are smaller. Representative sequences are ^{Ca 2+> Al 3+> Mg 2+} > Na +> K +> Li +> F +> Cl -> NO 3-> SO 4 2 -> PO 4 3 -> S 2 - a.

Reaction type (meth) acrylate resin is used in order to improve the hardness and scratch resistance of the anti-glare layer formed using the composition for anti-glare layer formation.

The reactive (meth) acrylate resin is not particularly limited and may be one known in the art, and preferably a photocurable acrylic resin may be used. As the reactive (meth) acrylate resin, (1) one or more reactive acrylate oligomers are used, (2) one or more reactive acrylate monomers are used, or (3) the oligomer and monomer may be used in combination. Can be.

(1) The kind of reaction type (meth) acrylate oligomer is not specifically limited, What is known in the art can be used, Preferably urethane (meth) acrylate oligomer can be used.

The manufacturing method of the said urethane (meth) acrylate oligomer is not specifically limited, For example, arbitrary polymerization reaction, block polymerization reaction, graft polymerization reaction, etc. may be used. Moreover, a urethane (meth) acrylate oligomer can be manufactured by the method of reacting the compound which has an isocyanate group in a molecule | numerator, and the (meth) acrylate compound which has a hydroxyl group in a molecule | numerator in a suitable equivalence ratio.

Compounds having an isocyanate group in the molecule include 1,3-bis (isocyanatomethyl) cyclohexane, 4,4'-methylenebis (cyclohexyl isocyanate), 4,4'-methylenebis (2,6-dimethylphenylisocyanate ), 4,4'-oxybis (phenylisocyanate), acryloylethyl isocyanate, methacryloylethyl isocyanate, 4,4'-dicyclohexylmethane diisocyanate, hexamethylene diisocyanate and trimers thereof, 1, 4-diisocyanatobutane, 1,6-diisocyanatohexane, 1,8-diisocyanatooctane, 1,12-diisocyanatodecane, 1,5-diisocyanato-2-methylpentane, trimethyl-1 , 6-diisocyanatohexane, trans-1,4-cyclohexene diisocyanate, isophorone diisocyanate, toluene-2,4-diisocyanate, toluene-2,6-diisocyanate, xylene-1,4-di Isocyanate, tetramethylxylene-1,3-diisocyanate, 1- Diisocyanate compounds such as chloromethyl-2,4-diisocyanate; A triisocyanate derived from a pseudo diisocyanate compound; An adduct obtained by reacting 1 mole of a polyhydric alcohol compound such as trimethylolpropane with 3 mole of a diisocyanate compound; An isocyanurate compound in which 3 mol of a diisocyanate compound is self-condensed; The diisocyanate urea obtained from 2 moles of 3 moles of the above diisocyanate compound may be a biuret body condensed with the remaining 1 mole of diisocyanate, and these may be used alone or in combination of two or more thereof.

Examples of the (meth) acrylate having a hydroxyl group in the molecule include pentaerythritol tri (meth) acrylate, pentaerythritol tetra (meth) acrylate, dipentaerythritol penta (meth) acrylate, dipentaerythritol hexa ( Methacrylate) and the like, and these may be used alone or in combination of two or more thereof.

(2) The kind of reaction type (meth) acrylate monomer is not specifically limited, What is known in the field can be used. Specifically, the reactive (meth) acrylate monomers include monomer dipentaerythritol hexa (meth) acrylate, dipentaerythritol penta (meth) acrylate, pentaerythritol tetra (meth) acrylate, and ditrimethylolpropane tetra (meth) acrylic. Ethylene, (meth) acrylic ester, trimethylolpropane tri (meth) acrylate, glycerol tri (meth) acrylate, tris (2-hydroxyethyl) isocyanurate tri (meth) acrylate, ethylene glycol di ( Meta) acrylate, propylene glycol (meth) acrylate, 1,3-butanedioldi (meth) acrylate, 1,4-butanedioldi (meth) acrylate, 1,6-hexanedioldi (meth) acrylate, Neopentyl glycol di (meth) acrylate, diethylene glycol di (meth) acrylate, triethylene glycol di (meth) acrylate, dipropylene glycol di (meth) acrylate, b (2-hydroxyethyl) isocyanurate di (meth) acrylate, hydroxyethyl (meth) acrylate, hydroxypropyl (meth) acrylate, hydroxybutyl (meth) acrylate, isooctyl (meth) Acrylate, iso-decyl (meth) acrylate, stearyl (meth) acrylate, tetrahydrofurfuryl (meth) acrylate, phenoxyethyl (meth) acrylate, isobornol (meth) acrylate, etc. These may be used alone or in combination of two or more thereof.

The photoinitiator can be applied without limitation so long as it is generally used in the art, specifically 2-methyl-1- [4- (methylthio) phenyl] 2-morpholinepropanone-1, diphenyl ketone benzyl dimethyl ketal , 2-hydroxy-2-methyl-1-phenyl-1-one, 4-hydroxycyclophenylketone, dimethoxy-2-phenylatetophenone, anthraquinone, fluorene, triphenylamine, carbazole, 3 At least one from the group consisting of methyl acetophenone, 4-knoloacetophenone, 4,4-dimethoxyacetophenone, 4,4-diaminobenzophenone, 1-hydroxycyclohexylphenyl ketone, benzophenone, and the like. have.

The antiglare layer-forming composition comprises 0.4 to 2.0 parts by weight of silica particles, 0.05 to 1.0 part by weight of a polymer electrolyte, 92 to 98 parts by weight of reactive (meth) acrylate resin, and 2 to photoinitiator, based on 100 parts by weight of the total solids, excluding the mixed solvent. It comprises 8 parts by weight, the ratio of the solid content and the mixed solvent is preferably 1: 9.

If less silica particles are included in the solid component, it is difficult to form irregularities, and if it is included in a large amount, the haze increases. In addition, if the polymer electrolyte is less contained, there is a disadvantage that the unevenness of the coating surface is not formed.

The solvent plays a role of improving the coating property by controlling the viscosity of the composition for forming the antiglare layer and at the same time controlling the colloidal silica entanglement. At this time, an important factor that is involved in the entanglement of colloidal silica is the mixing ratio of the proton solvent and the organic aprotic solvent.

 As the composition for forming an antiglare layer according to the present invention, a mixture of an organic quantum solvent and an organic aprotic solvent is used, and a mixing weight ratio of the organic quantum solvent and the organic aprotic solvent should be 1: 9 to 9: 1, Preferably 3: 7 to 7: 3.

The organic quantum solvent has a hydrogen donor group to keep the polymer electrolyte in a stable state, while the organic aprotic solvent does not have a hydrogen donor group to suppress stabilization of the polymer electrolyte.

Therefore, when the content ratio of the organic quantum solvent in the antiglare layer forming composition is higher than the above content ratio, the activity of the electrolyte is lowered, so that the entanglement of colloidal silica appears weakly.

On the other hand, when the content of the organic aprotic solvent is higher than the content ratio, the activity of the electrolyte is increased, the entanglement of the colloidal silica appears strongly.

If the entanglement does not occur, there is a problem that does not form the surface irregularities and does not exhibit anti-glare, and when the entanglement is intensified, colloidal silica precipitates or strongly aggregates from the coating liquid composition for forming the antiglare layer, and the coating property of the composition for forming the antiglare layer is formed. Falling, there is a problem that the surface irregularities of the anti-glare layer prepared by using the same.

The organic quantum solvent is not particularly limited, and those known in the art may be used without limitation. For example, methanol, ethanol, propanol, isopropanol, butanol, isobutanol, methyl glycol, methyl glycol acetate, ethylene glycol monomethyl ether (methyl cellosolve), ethylene glycol monoethyl ether (ethyl cellosolve), ethylene glycol monobutyl Ethers (butyl cellosolve), propylene glycol methyl ether and the like can be used. These may be used alone or in combination of two or more.

The organic aprotic solvent is not particularly limited and known in the art can be used without limitation. For example, aromatic compounds, such as toluene, xylene, benzene, acetate compounds, such as ethyl acetate, butyl acetate, and propylene glycol methyl ether acetate, etc. can be used. These may be used alone or in combination of two or more.

Meanwhile, the composition for forming the antiglare layer may further include at least one additive selected from the group consisting of antioxidants, UV absorbers, light stabilizers, leveling agents, surfactants, and antifouling agents.

The present invention provides an anti-glare film comprising an anti-glare layer formed using the above-described composition for anti-glare formation. That is, the anti-glare film of the present invention is provided with an anti-glare layer formed by applying a composition for forming an anti-glare layer on at least one surface of a transparent substrate and then drying to form surface irregularities by agglomeration of colloidal silica particles, followed by curing.

The transparent substrate is not particularly limited as long as it is a transparent film. For example, the transparent substance may be a cycloolefin-based derivative having a unit of a monomer including a cycloolefin such as norbornene or a polycyclic norbornene monomer, cellulose (diacetylcellulose, triacetylcellulose, acetylcellulose butyrate, iso Propyl cellulose, butyryl cellulose, acetyl propionyl cellulose), ethylene-vinyl acetate copolymer, polyester, polystyrene, polyamide, polyetherimide, polyacrylic, polyimide, polyethersulfone, polysulfone, There may be mentioned polyethylene, polypropylene, polymethylpentene, polyvinyl chloride, polyvinylidene chloride, polyvinyl alcohol, polyvinyl acetal, polyether ketone, polyether ether ketone, polyether sulfone, polymethyl methacrylate, polyethylene terephthalate, poly Butylene terephthalate, polyether Renna phthalate, may be used polycarbonate, selected from polyurethane, epoxy, can be used an undrawn, uniaxially or biaxially stretched film. Preferably, uniaxial or biaxially stretched polyester films excellent in transparency and heat resistance, and triacetylcellulose films having no transparency and optically anisotropy can be used.

The transparent substrate may have a thickness of about 8 μm to about 1000 μm, and preferably about 40 μm to about 100 μm.

A method of applying the composition for forming an antiglare layer on a transparent substrate is not particularly limited, and for example, a method such as die coater, air knife, reverse roll, spray, blade, casting, gravure or spin coating may be used.

The coating thickness of the composition for forming an antiglare layer applied on the transparent substrate may be 3 to 50 μm, preferably 5 to 30 μm, and more preferably 10 to 25 μm.

The drying step of the composition for forming an antiglare layer may be performed at a temperature of 30 to 150 DEG C for 10 seconds to 1 hour, preferably 30 seconds to 10 minutes.

The curing step of the composition for forming an antiglare layer may be photocuring, wherein the amount of UV light to be irradiated may be about 0.01 to 10 J / cm ² , preferably 0.1 to 2 J / cm ² .

According to the present invention, the dispersion of the surface height values including the unevenness of the antiglare film is 0.05 to 0.3um ² , and the kurtosis is preferably 0 to 4. Dispersion is correlated with the height of the unevenness, and the smaller the number of dispersion, the lower the height of the unevenness. Kurtosis correlates with the distribution of irregularities. The smaller the kurtosis, the smaller the kurtosis value is. Dispersion and kurtosis are calculated by the formulas (1) and (2).

In the above equation, n is the number of extracted surface height data, is the height of the extracted surface as the height of irregularities on the coating surface,

Is the mean of the extracted surface height values, and s is the standard deviation of the extracted surface height values.

The present invention provides a polarizing plate provided with the antiglare film according to the present invention. That is, the polarizing plate of the present invention may be formed by laminating an antiglare film according to the present invention on one side or both sides of a conventional polarizer. The polarizer may have a protective film on at least one side thereof.

The present invention provides a display device provided with an antiglare film according to the present invention. As an example, the display apparatus which concerns on this invention can be manufactured by embedding the polarizing plate with an anti-glare film which concerns on this invention mentioned above in a display apparatus. Further, the antiglare film of the present invention may be adhered to a window of a display device. The display device may be a liquid crystal display device, a cathode-ray tube display device, a plasma display, and a touch panel type input device.

Hereinafter, the present invention will be described in more detail with reference to the following examples and comparative examples, but the following examples are only specific examples of the present invention and are not intended to limit or limit the scope of protection of the present invention.

Manufacturing example  One : Anticyclone layer  Preparation of composition for forming

(1) Preparation of Resin Mixture (Solid)

To prepare a resin mixture (solid content) having the component and content (% by weight) of Table 1. As the colloidal silica, ELCOM V8802 manufactured by Catalytic Chemical was used, and 1SX-1055 manufactured by Daesung Fine Chemical Co., Ltd. was used as the polymer electrolyte, and Pentaerythritol tri / tetraacrylate and M340 manufactured by Miwon Specialty Chemical were used as the acrylate resin. As a photoinitiator, BASF's 1-hydroxycyclohexylphenyl ketone and I-184 were used.

division
(weight%) Colloidal silica Polymer electrolyte Responsive Acrylate Resin Photoinitiator Resin Mixture 1 0.5 0.05 94.45 5 Resin Mixture 2 One 0.05 93.95 5 Resin Mixture 3 One 0.5 93.50 5 Resin Mixture 4 One One 93.00 5 Resin Mixture 5 1.9 0.1 93.00 5 Resin Mixture 6 1.9 0.5 92.60 5 Resin Mixture 7 1.9 One 92.10 5 Resin Mixture 8 0.3 0.3 94.40 5 Resin Mixture 9 One 0.04 93.96 5 Resin Mixture 10 2.0 1.1 91.90 5

(2) Preparation of Solvent

To prepare a solvent having the component and content (% by weight) of Table 2. 2-ethoxyethanol (EC) from Hannongseongseong and 1-methoxy-2-propanol (PGME) from Hannongseongseong were used as the protonic solvent, and methyl ethyl ketone (MEK) from Daejung Jinhwa Co., Ltd. was used as the aprotic solvent. Ethyl acetate (EA) and normal butyl acetate (n-BA) from Daejung Pure Chemical Co., Ltd. were used.

division
(weight%) Mixed solvent Protonic solvent Aprotic Solvent Mixed solvent 1 60
(EC: 10, PGME: 50) 40
(MEK: 10, EA: 30) Mixed Solvent 2 90
(EC: 10, PGME: 80) 10
(MEK: 10) Mixed Solvent 3 10
(EC: 10) 90
(MEK: 10, EA: 80) Mixed Solvent 4 30
(EC: 10, PGME: 20) 70
(MEK: 10, EA: 30, n-BA: 30) Mixed Solvents 5 70
(EC: 10, PGME: 60) 30
(MEK: 10, EA: 20) Mixed Solvents 6 0 100
(MEK: 10, EA: 30, n-BA: 60) Mixed Solvents 7 100
(EC: 10, PGME: 90) 0 Mixed Solvent 8 5
(EC: 5) 95
(MEK: 10, EA: 30, n-BA: 55) Mixed Solvents 9 95
(EC: 10, PGME: 85) 5
(MEK: 5)

(3) Mixing of resin mixture (solid content) and solvent

45 parts by weight of the resin mixture having the components and contents of Table 1 and 55 parts by weight of the mixed solvent having the components and contents of Table 2 were mixed to prepare a composition for forming an antiglare layer.

division
(weight%) Resin mixture Mixed solvent Sum Example 1 Resin Mixture 1 Mixed solvent 1 100 Example 2 Resin Mixture 2 Mixed solvent 1 100 Example 3 Resin Mixture 3 Mixed solvent 1 100 Example 4 Resin Mixture 4 Mixed solvent 1 100 Example 5 Resin Mixture 5 Mixed solvent 1 100 Example 6 Resin Mixture 6 Mixed solvent 1 100 Example 7 Resin Mixture 7 Mixed solvent 1 100 Example 8 Resin Mixture 8 Mixed solvent 1 100 Example 9 Resin Mixture 9 Mixed solvent 1 100 Example 10 Resin Mixture 10 Mixed solvent 1 100 Example 11 Resin Mixture 2 Mixed Solvent 2 100 Example 12 Resin Mixture 2 Mixed Solvent 3 100 Example 13 Resin Mixture 2 Mixed Solvent 4 100 Example 14 Resin Mixture 2 Mixed Solvents 5 100 Comparative Example 1 Resin Mixture 2 Mixed Solvents 6 100 Comparative Example 2 Resin Mixture 5 Mixed Solvents 6 100 Comparative Example 3 Resin Mixture 2 Mixed Solvents 7 100 Comparative Example 4 Resin Mixture 2 Mixed Solvent 8 100 Comparative Example 5 Resin Mixture 2 Mixed Solvents 9 100

Manufacturing example  2: On one side of transparent substrate The anti-  Formed Blooming  Production of film

The antiglare layer forming composition prepared in Preparation Example 1 was stirred for 6 hours and then coated with a meyer bar on a triacetyl cellulose (TAC) film having a thickness of 60 μm, and then dried at 100 ° C. for 1 minute, and UV light of 400 mJ / cm ² was applied. Photocuring was carried out to prepare an antiglare film having an antiglare layer having a thickness of 6 μm.

In order to compare the properties of the antiglare layer forming composition and the antiglare layer prepared in Preparation Examples 1 to 2, the physical properties were measured as follows and the results are shown in Table 4.

(One) Anticyclone layer  Observation of sediment formation in the forming composition

The antiglare layer forming composition prepared in Preparation Example 1 was loaded into a 20 mL transparent vial bottle, and then whether or not a precipitate was formed was visually observed.

- Assessment Methods -

Precipitate X: No precipitate found in the composition.

Precipitate O: Precipitation was found in the composition.

(2) Blooming  Dispersion and kurtosis measurement of the surface height of film

The height of the surface of the antiglare layer of the antiglare film produced in Production Example 2 was measured. The measurement was performed using a color 3D laser microscope (VK-9510, Keyence Co., Ltd.), the magnification of the objective lens of the microscope was set to 20 times, the surface size of the measurement was set to 675um (width) X 506um (length). All heights of the measured surface were extracted with 256 x 192 pixels using a program on a 3D microscope system.

Dispersion and kurtosis values were calculated using Equations 1 and 2 below.

[Equation 1]

&Quot; (2) "

Where n is the number of extracted surface height data, H is the height of the extracted surface,

Is the mean of the extracted surface height (H) values, s is the standard deviation of the extracted surface height (H) values.

Dispersion is correlated with the height of the unevenness, and the smaller the number of dispersion, the lower the height of the unevenness. Variance of the anti-glare layer height is preferably 0.05 ~ 0.3um ^2.

Kurtosis correlates with the distribution of irregularities. The smaller the kurtosis, the smaller the kurtosis value is. The kurtosis value of the antiglare layer height is preferably 0 to 4.

(3) Blooming  Film Hayes  Measure

The haze value of the antiglare film manufactured in Production Example 2 was measured using a Suga's HZ-1 Haze Meter.

The haze of the coating film correlates with the turbidity of the coating film, and the higher the haze, the sharper the film.

(4) Blooming  Measurement of transmission sharpness of film

Transparent clarity of the antiglare film prepared in Production Example 2 was measured using a transmission sharpness meter (ICM-1T, Suga). The transmission sharpness was determined by summing the values of the transmission sharpness values of the slit intervals of 0.01 mm, 0.5 mm, 1.0 mm and 2.0 mm.

The transmission sharpness value is correlated with the sharpness, and the larger the transmission sharpness value is, the clearer it is.

(5) Blooming  Reflective Sharpness Measurement of Film

After bonding the black acrylic plate of the anti-glare film prepared in Preparation Example 2, the reflection sharpness at 45 degrees was measured using a sharpness measuring instrument (ICM-1T, Sugasa). Reflectance sharpness was obtained by adding the values at slit intervals of 0.5 mm, 1.0 mm, and 2.0 mm.

The reflectance sharpness value correlates with the flash-time, and the smaller the reflectance sharpness value, the higher the reflectance.

(6) Blooming  The diffuse reflectance of the film ( SCE ) Measure

After bonding the black acrylic plate of the antiglare film prepared in Preparation Example 2, the diffuse reflectance (SCE) in the integral sphere reflectivity of the surface of the coating layer was measured using a spectrophotometer (Konica Minolta, CM-3700d).

The diffuse reflectance (SCE) was measured by the ISO standard d / 8 structure, the light source was measured by the SCE method at 10nm intervals from 360nm to 740nm using a pulsed xenon lamp, 6 inch integrating sphere. The reflectance measured according to the wavelength was converted into a Y value calculated by the CIE 1931 standard colorimetric system.

The higher the diffuse reflectance (SCE) value, the greater the anti-glare.

 (7) Blooming  Film Anti-glare Moxie  evaluation

After bonding the black acrylic plate of the anti-glare film prepared in Preparation Example 2, the three-wavelength stand light was reflected from the surface of the anti-glare film to confirm the degree of the shape of the stand light is clearly visible.

- Assessment Methods -

Anti-glare ○: The shape of the stand light is crushed and recognized

Anti-glare X: The shape of the stand light is clearly recognized

division Sediment formation Dispersion
(um ² ) Kurtosis Hayes
(%) Permeation
definition
(%) reflect
definition
(%) diffusion
reflectivity
(%) Anti-glare rating Example 1 X 0.063 1.91 0.5 333 111 0.29 ○ Example 2 X 0.0578 1.22 0.5 329 107 0.32 ○ Example 3 X 0.089 1.72 0.8 310 98 0.33 ○ Example 4 X 0.180 2.97 0.9 251 75 0.48 ○ Example 5 X 0.051 1.66 0.8 318 102 0.35 ○ Example 6 X 0.097 1.89 0.9 263 83 0.43 ○ Example 7 X 0.295 3.91 One 247 72 0.49 ○ Example 8 X 0.026 0 0.2 380 285 0.19 ○ Example 9 X 0.029 0 0.2 378 289 0.19 ○ Example 10 X 0.3 4.0 3.0 200 72 2.1 ○ Example 11 X 0.109 2.01 0.7 306 101 0.32 ○ Example 12 X 0.059 1.43 0.4 341 120 0.28 ○ Example 13 X 0.059 1.37 0.4 332 111 0.30 ○ Example 14 X 0.072 1.67 0.6 319 108 0.31 ○ Comparative Example 1 X 0.040 -0.09 0.2 366 237 0.19 X Comparative Example 2 ○ 0.039 -0.08 0.2 363 224 0.19 X Comparative Example 3 X 0.875 8.4 6.0 98 39 1.84 ○ Comparative Example 4 X 0.04 -0.04 0.2 359 229 0.2 X Comparative Example 5 X 0.679 7.1 5.9 101 52 1.72 ○

Claims (12)

Colloidal silica particles, a polymer electrolyte, a reactive (meth) acrylate resin, a photoinitiator and a solvent, wherein the solvent is a mixed solvent in which an organic quantum solvent and an organic aprotic solvent is mixed in a 1: 9 to 9: 1 weight ratio The composition for anti-glare layer forming characterized by using.
The composition for forming an antiglare layer according to claim 1, wherein the mixed solvent is mixed in a weight ratio of 3: 7 to 7: 3.
The method of claim 1, wherein the organic proton solvent is methanol, ethanol, propanol, isopropanol, butanol, isobutanol, methyl glycol, methyl glycol acetate, ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monobutyl ether, propylene A composition for forming an antiglare layer, characterized in that at least one member selected from the group consisting of glycol methyl ether.
The composition of claim 1, wherein the organic aprotic solvent is at least one selected from the group consisting of toluene, xylene, benzene, ethyl acetate, butyl acetate, and propylene glycol methyl ether acetate.
The composition for forming an antiglare layer according to claim 1, wherein the colloidal silica particles have an average particle diameter of 0.001 to 200 nm.
The said anti-glare layer forming composition is 0.4-2.0 weight part of silica particles, 0.05-1.0 weight part of polymer electrolytes, and reactive (meth) acrylate resin 92-98 with respect to 100 weight part of total solids except a mixed solvent. A composition for forming an antiglare layer, comprising 2 parts by weight to 8 parts by weight of a photoinitiator, wherein the ratio of the solid content and the mixed solvent is 1: 9 to 9: 1.
The method of claim 1, wherein the antiglare layer forming composition further comprises at least one additive selected from the group consisting of antioxidants, UV absorbers, light stabilizers, leveling agents, surfactants and antifouling agents. Composition.
An antiglare film comprising an antiglare layer formed by using the antiglare layer forming composition according to any one of claims 1 to 7.
The anti-glare film of claim 8, wherein the anti-glare layer has a dispersion value of 0.05 to 0.3 um ² and a kurtosis value of 0 to 4.
The anti-glare film of Claim 8 is included, The polarizing plate characterized by the above-mentioned.
A display device comprising the antiglare film of claim 8.
12. The display device according to claim 11, wherein the display device is selected from the group consisting of a liquid crystal display device, a cathode-ray tube display device, a plasma display, and a touch panel type input device.