TWI400476B - Anti-reflective film with excellent scratch resistance and surface slip property - Google Patents

Description

Anti-reflective film with excellent scratch resistance and surface sliding properties

The present invention relates to an antireflection film having excellent scratch resistance and surface sliding properties, and more specifically to a method in which the surface friction coefficient is lowered and the scratch resistance is improved to make the surface sliding property It is more excellent, thereby avoiding one of the rolling sounds or the like when the position of the display is moved to adjust the viewing angle, and effectively avoiding light reflection from the surface of a display device, while reducing the production cost and having scratch resistance and The anti-reflective film of the surface sliding property is related.

In general, a display such as a plasma display panel (PDP), a cathode ray tube (CRT), a liquid crystal display device (LCD), or the like faces the light that is incident from the outside and is reflected. The problem that the displayed image is difficult to see. Especially when recent flat panel displays have become larger, it has become more important to solve the aforementioned problems.

In order to solve the aforementioned problems, an anti-reflection or anti-glare treatment has hitherto been applied to various display devices. By way of a specific example, the antireflective film is applied to a variety of different display devices. Figure 1 illustrates the principle of an antireflective film.

The antireflection film has been coated with a low refractive index material (MgF ₂ ) as a film on a base film, or by a material having a high refractive index [doped with tin indium oxide (ITO), doped with antimony (ATO) tin, ZnO, TiO _2, etc.] with a material having a low refractive index (MgF _2, SiO _2, etc.), for example via deposition, sputtering Or a method similar to a dry coating process to alternately stack on a base film. However, the dry coating process is too expensive to commercially manufacture the antireflective film in parallel.

In order to address the aforementioned shortcomings, recent wet coating processes have been attempted for the manufacture of the antireflective film, as well as its practical commercial use. However, the reflective film produced by the wet coating process will be deteriorated in scratch resistance compared to those manufactured by the dry coating process.

The anti-reflection film is provided in an outermost position of the display device such as the PDP, the CRT, the LCD, or the like, and has an anti-reflection property that prevents image quality from being deteriorated by reflecting light from the outside, and avoids external The main characteristics of the pollution resistance of pollutants, the scratching caused by external mechanical friction, and so on.

In addition to these main characteristics, surface sliding properties have recently become important. If the sliding property of the surface is poor, when the display device is cleaned or moved to adjust a viewing angle, the rolling sound is generated due to the friction between the frame and the anti-reflection film, so the user May complain.

Therefore, in addition to the above-mentioned main characteristics, the antireflection film must have good surface sliding properties, and thus a further antireflection film will be required.

Brief description of the invention

The present invention has been conceived to solve the above problems, and it is an object of the present invention to provide an antireflection film having excellent scratch resistance and surface sliding properties, which has excellent scratch resistance and surface sliding. nature It is possible to effectively avoid light reflection from the surface of a display device while reducing production costs.

The above and further objects and advantages of the present invention will become more apparent from the written description of the appended claims.

The foregoing objects are achieved by providing an antireflection film having excellent scratch resistance and surface sliding properties, wherein a hard coating 110 comprising a (meth) acrylate compound, a resin comprising a binder and a The high refractive index layer 120 of the conductive particles, and a low refractive index layer 130 containing a fluorine compound are sequentially stacked on at least one side of the base film 100, wherein the surface of the low refractive index layer 130 has a fineness The unevenness is, and the static friction coefficient on the side of the low refractive index layer 130 is equal to or less than 0.5 and the dynamic friction coefficient is equal to or less than 0.7.

Here, the low refractive index layer 130 contains 15 to 25 parts by weight of cerium oxide with respect to 100 parts by weight of the binder resin.

Preferably, the invention is characterized in that the haze value in the reflective film is less than 3.0%.

Preferably, the present invention is characterized in that the antireflection film has a transmittance of less than 5% in the wavelength range of 380 nm.

Preferably, the present invention is characterized in that the thickness of the hard coat layer 110 is between 1 μm and 50 μm.

Preferably, the present invention is characterized in that the thickness of the high refractive index layer 120 is between 0.01 μm and 1.0 μm, and the thickness of the low refractive index layer 130 is between 0.01 μm and 1.0 μm.

Preferably, the present invention is characterized in that the conductive particles in the high refractive index layer 120 are metal oxide particles.

Preferably, the present invention is characterized in that the weight ratio of the binder resin to the conductive particles in the high refractive index layer 120 is between 10/90 and 30/70.

Preferably, the present invention is characterized in that the fluorine compound of the low refractive index layer 130 contains a fluorocopolymer having a vinyl ether structure in the main chain.

Preferably, the present invention is characterized in that the low refractive index layer 130 contains cerium oxide particles having a particle size of from 0.001 μm to 0.2 μm.

Preferably, the invention is characterized in that the cerium oxide particles have a component type which is two or more particle sizes.

Preferably, the present invention is characterized in that the low refractive index layer 130 further contains a decane linking agent represented by the following Chemical Formula 1 or a hydrolyzate thereof or a reactant thereof: [Chemical Formula 1] R(1) _a R (2) _b SiX _4-(a+b) wherein R(1) or R(2) are each independently a hydrocarbyl group having an alkyl group, an alkenyl group, an allyl group or a halogen group, an epoxy group, An amine group, a thiol group, a methacryloxy group, or a cyano group; the X system is one selected from the group consisting of an alkoxy group, an alkoxy-alkoxy group, a halogen group or a decyloxy group. Substituents; a and b are 0, 1, or 2, respectively; and (a+b) is 1, 2, or 3.

Meanwhile, preferably, the present invention is characterized in that the fluoride of 130 in the low refractive index layer further contains a fluororesin having a decyloxy group represented by the following Chemical Formula 2 or a hydrolyzate thereof: [Chemical Formula 2] R(3) _c R(4) _d SiX _4-(c+d) wherein R(3) or R(4) is a fluorinated alkyl group, an alkenyl group, an allyl group, respectively. a methacryloxy group, or a (meth) acryloyl group; the X system is selected from an alkoxy group, an alkoxy-alkoxy group, a halogen group or a decyloxy group. Hydrolyzed substituent; c and d are 0, 1, 2 or 3, respectively; and (c+d) is 1, 2 or 3.

Brief description of the schema

The features and advantages of the present invention will become apparent from the following detailed description of the appended claims. 2 is a cross-sectional view schematically showing a film of a stacked structure of the antireflection film according to the present invention.

Detailed description of preferred embodiments

In the following, the invention will be described in detail with reference to the specific examples and the accompanying drawings. For those skilled in the art, the specific examples are obviously only for illustrating the present invention in more detail, and the scope of the present invention is not limited to the specific examples.

According to an embodiment of the present invention, an antireflection film having excellent scratch resistance and surface sliding properties, the coefficient of friction of the surface is thereby lowered to improve scratch resistance, and the sliding property of the surface is excellent. By avoiding being moved at the position of the display device to adjust a viewing angle or the like One of the action moments is rolling and reducing the production cost.

Therefore, the antireflection film having excellent scratch resistance and surface sliding property according to a specific example of the present invention is applied to the front side of a large-sized television using, for example, a plasma display panel, a liquid crystal display or the like. On the surface.

Fig. 2 is a cross-sectional view showing an antireflection film which is an outline of a stacked structure of the antireflection film. As shown in the drawing, a hard coat layer 110, a high refractive index layer (hereinafter also referred to as "conductive layer") 120, and a low refractive index layer (hereinafter also referred to as "resin layer") 130 are shown. The substrates are sequentially stacked on the base film 100 (hereinafter, 100+110+120+130 is also referred to as a "stacked film"). Meanwhile, a protective film 140 and an adhesive layer 150 and a release film 160 on the other side of the substrate film 100 may be stacked.

According to a specific example of the present invention, the surface sliding property of the low refractive index layer is lowered so that the antireflection film is excellent in a reflective appearance, wherein the scratch is obtained when the viewing angle is adjusted Resistance can be improved and friction noise can be suppressed. At the same time, the reflective film is excellent in reflective appearance and has low surface reflectance and neutral color.

In order to achieve this object, the inventors of the present invention have repeatedly conducted research and found a hard coat layer 110, a high refractive index layer (hereinafter also referred to as "conductive layer") 120, and a low refractive index layer (hereinafter also referred to as The "resin layer" 130 is sequentially stacked on the at least one side of the base film 100, wherein the surface friction coefficient of the low refractive index layer 130 is The static friction coefficient is 0.5 or less and the dynamic friction coefficient is 0.7 or less.

At the same time, the present invention also intends to cover a display device by bonding the antireflection film to an image display side or a surface of a front side panel.

According to a specific example of the present invention, the hard coat layer 110 comprising the methacrylic compound, the high refractive index layer 120 containing conductive inorganic particles, and the fluorine compound and/or the hollow ceria are contained. The low refractive index layer 130 of the particles is stacked to form a stacked film on the base film, and the surface of the stacked film has a dynamic friction coefficient (μk) of 0.7 or less, and is 0.5. Or less static friction coefficient (μs), thereby forming an anti-reflection film which can improve the surface sliding property and the scratch resistance as well as good mechanical properties. Further, the coefficient of friction is lowered to improve the sliding property, and thus the friction noise can be suppressed when the display device is moved to adjust the angle of view. For example, the anti-reflective film is applied to a front side surface of a large-sized television such as a plasma display panel, a liquid crystal display or the like.

The substrate film 100 for the antireflection film having excellent scratch resistance and surface sliding properties according to the present invention preferably has a high transmittance and a low haze value to the substrate The film 100 is used as an element of a display device (hereinafter referred to as a 'display element'). For example, the transmittance in the wavelength range of 400 to 800 nm is preferably 40% or more, more preferably 60% or more. Meanwhile, the haze value is preferably 5% or less, more preferably 3% or less. When one or both of the above conditions are not satisfied, the resulting film used as a display element is liable to be missing. Lack of image sharpness. Meanwhile, in order to achieve the effect of satisfying the sharpness, the upper limit of the transmittance of the usable range is about 99.5% and the lower limit of the haze value is about 0.1%.

The base film 100 is not limited to a specific type. It may be suitably selected from resin materials used for known plastic substrate films.

A typical resin material for the base film 100 is a polymer or copolymer having the following units selected from the group consisting of esters, ethylene, propylene, diacetic acid, triacetic acid, styrene, carbonate, A group consisting of methylpentene, anthracene, ethyl ether ethyl ketone, quinone imine, fluorine, nylon, acrylic acid, aliphatic cyclic olefin, and the like.

Preferably, a polymer or copolymer having the following units is selected from the foregoing resins selected from the group consisting of esters of, for example, polyethylene terephthalate, such as cellulose acetate triacetate. For example, a group consisting of polymethyl methacrylate acrylates and the like. The reason why they are preferred is that they have a very uniform light transmittance, strength and thickness. In particular, the base film 100 is preferably made of a polymer having a unit of an ester, depending on light transmittance, haze value, and mechanical properties.

Specific examples of such polyester resins include polyethylene terephthalate, polyethylene-2,6-naphthalenedicarboxylic acid, polybutylene terephthalate, polyethylene-α,β-bis(2- Chlorophenolyl)ethane-4,4'-dicarboxylic acid, and the like. Meanwhile, as long as the components do not exceed 20 mol%, the dicarboxylic acid component or the diol component may be copolymerized with the polyesters. Among them, polyethylene terephthalate is generally particularly preferred in terms of quality, economic efficiency, and the like.

It can only use one type of these constituent resin components or two or A combination of more types.

Meanwhile, the thickness of the base film 100 used for the antireflection film having excellent scratch resistance and surface sliding properties according to the present invention is not limited to a specific value. However, based on the transmittance, haze value and mechanical properties, the thickness generally falls between 5 and 800 μm, preferably between 10 and 250 μm. Meanwhile, the base film 100 can be produced by joining two or more sheets of the film in a known manner.

Meanwhile, the base film 100 may be subjected to surface treatment (for example, by corona discharge, glow discharge, combustion, etching, or roughening, etc.) before the formation of the hard coat layer 110. Meanwhile, in order to enhance the adhesion, the hard coat layer 110 may apply a coating as an initial layer (for example, having polyurethane, polyester, polyester acrylate, polyurethane acrylate, poly A coating of an epoxy acrylate, a titanate compound, or the like) is then formed on the surface of the substrate film. In particular, the adhesion can be improved by applying a composition as an initial layer, and durability such as heat resistance, water repellency, and the like can be improved, and the composition contains a propylene compound grafted to have a The polyester resin of the hydrophilic group and the copolymer of the crosslinking agent are used to use the resulting film as a substrate film 100.

The hard coat layer 110 in the antireflection film having excellent scratch resistance and surface sliding properties according to the present invention is produced on the base film 100. This level 110 should essentially comprise a (meth) acrylate compound. The acrylate compound is subjected to radical polymerization by irradiation with an actinic ray, thereby improving the solvent resistance of the resulting film. Sex or hardness. Specifically, one of the methacrylate compounds is specifically a monofunctional acrylate compound such as methyl (meth) acrylate, n-butyl (meth) acrylate, polyester (methyl Acrylate, lauryl (meth) acrylate, hydroxyethyl (meth) acrylate, hydroxypropyl (meth) acrylate, and the like. Meanwhile, since the polyfunctional acrylate compound has two or more (meth)allyl groups which can improve solvent resistance in one molecule, it is particularly suitable for the present invention. A specific specific example of one of the polyfunctional acrylate compounds is pentaerythritol tri(meth)acrylate, pentaerythritol tetra(meth)acrylate, diisopentyl alcohol tri(meth)acrylate. , diisopentyl alcohol tetra (meth) acrylate, diisopentaerythritol penta (meth) acrylate, diisopentaerythritol hexa (meth) acrylate, trimethylolpropane tri (methyl) Acrylate and so on. It can only use one type of these monomers or a combination of two or more types.

The constituent resin component for forming the hard coat layer 110 in the present invention may contain, for example, an alkyl phthalate and a hydrolyzate thereof, colloidal cerium oxide, dry cerium oxide, wet cerium oxide, or three. Titanium oxide or the like, and inorganic particles of the cerium oxide particles dispersed in the colloid to improve the hardness of the hard coat layer 110.

The thickness of the hard coat layer 110 is appropriately selected depending on the use thereof, but is typically from 1 μm to 50 μm, preferably from 2 μm to 30 μm.

If the thickness of the hard coat layer 110 is less than one μm, the surface hardness of the layer 110 will be insufficient, so the layer 110 may be easily damaged and thus is not preferred. Meanwhile, if the thickness of the layer 110 is more than 50 μm, the transmittance will be lowered to cause an increase in the haze value. Cured The film will also be fragile and will break when the hard coat 110 is bent. Therefore, the thickness of less than 1 μm or more than 50 μm is not preferable.

The conductive layer 120 in the antireflection film having excellent scratch resistance and surface sliding properties according to the present invention is formed on the hard coat layer 120. The conductive layer 120 basically contains conductive particles and a binder component. The conductive particles of the present invention include metal particles or metal oxide particles. Among them, metal oxide particles are preferred because of their high light transmittance. Other preferred metal oxide particles are antimony tin oxide (ATO) particles, cerium oxide particles, indium tin oxide (ITO) particles, zinc oxide/alumina particles, and cerium oxide particles. More preferably, it is indium tin oxide (ITO) particles and antimony tin oxide (ATO) particles.

Preferably, the above-mentioned conductive particles used have an average primary particle size of not more than 0.5 μm (the relative diameter of the sphere measured by the BET method), but more preferably between 0.001 and 0.3 μm, and still more The preferred system is between 0.005 and 0.2 μm. If the average primary particle size is larger than the above size, the particles will reduce the light transmittance of the resulting film (conductive layer 120). If the size is smaller than the above size, the particles may be easily concentrated, so that the haze value of the resulting film (conductive layer 120) will increase. It is therefore difficult in any case to obtain the desired haze value.

The binder component contained in the conductive layer 120 is an acrylate compound. The (meth)acrylic compound can be radically polymerized by irradiation of an active ray and is preferred because it can advantageously improve the solvent resistance or hardness of the resulting film. The one molecule Among the polyfunctional (meth)acrylic compounds having two or more (meth)allyl groups, the solvent resistance can be improved, and thus it is particularly preferable in the present invention. A specific example of the compound includes isopentaerythritol tri(meth)acrylate, trimethylolpropane tri(meth)acrylate, glycerol tris(meth)acrylate, modified ethylene trishydroxyl Trifunctional (meth) acrylate of methyl propane tri(meth) acrylate, tris-(2-hydroxyethyl)-isocyanate tri(meth) acrylate, and the like, and isopentaerythritol IV A (meth) acrylate having four or more functional groups of (meth) acrylate, diisopentaerythritol penta (meth) acrylate, diisopentaerythritol hexa (meth) acrylate, and the like.

The binder component contained in the conductive layer 120 may be an acidic functional group having, for example, a carboxylic acid group, a phosphate group, a sulfate group or the like to improve the dispersibility of the particles. Specifically, a specific example of the monomer having the acidic functional group is, for example, acrylic acid, methacrylic acid, crotonic acid, 2-methylallyloxyethyl succinic acid, and 2-methylallyloxyl Ethyl phthalic acid, for example, mono(2-allyl oxyethyl) acid phosphate with diphenyl-2-(methyl)allyl oxyethyl phosphate and 2-thioester (methyl) Acrylate phosphate (meth) acrylate and the like. Further, it may use a (meth) acrylate compound having a polar chemical bond such as a monoamine bond, a urethane bond, an ether bond, or the like. Meanwhile, the resin having a urethane bond such as a urethane (meth) acrylate oligomer is particularly preferable because it has a high polarity and can cause good particles. Dispersibility.

In forming the hard coat layer 110 of the present invention and the conductive layer 120, an initiator may be used to further promote the applied adhesive. The solidification effect. The initiator is used to initiate or promote polymerization and/or crosslinking of the applied binder component by means of a radical reaction, a cationic reaction, an anionic reaction, etc., and it may be any conventional A known photopolymerization initiator.

In particular, the initiator may be, for example, a sodium dithiocarbamate sodium sulfide, a monosulfide phenylbenzene, a dibenzothiazyl monosulfide, or the like; for example, thioxanthone, 2 a thioxanthone derivative of ethylthioxanthone, 2-chlorothioxanthone and 2,4-diethylthioxanthone; an azo compound such as hydrazine and azobisisobutyronitrile; a diazonium compound such as a benzophenone salt; for example, benzoin, benzoin methyl ether, benzoin ethyl ether, benzophenone, dimethylaminobenzophenone, tetramethyldiaminobenzophenone, anthracene, t An aromatic carbonyl compound such as butyl hydrazine, 2-methyl hydrazine, 2-ethyl hydrazine, 2-amino hydrazine, 2-chloro hydrazine or the like; for example, p-dimethylamino group A Benzoyl benzoate, p-dimethylaminoethyl benzoate, D-dimethylaminobutyl benzoate, p-diethylamino isopropyl benzoate, etc. Dialkylamino benzoate; for example, benzamidine peroxide, di-t-butyl peroxide, diisopropylbenzene peroxide, cumyl hydroperoxide, etc. Peroxidation An acridine derivative such as 9-phenyl acridine, 9-p-methyloxyphenyl acridine, 9-acetylindenyl acridine, benzoacridine, etc.; for example 9,10-two a morphine derivative of methylbenzophenone, 9-methylbenzophenan, and 10-methyloxybenzomorph; for example, 6,4',4"-trimethyloxy-2,3- a quinoline derivative of diphenylquinoline or the like; a dimer of 2,4,5-triphenylimidazolyl, 2-nitroindole, 2,4,6-triphenyloxanium 4 fluorinated Boron salt (2,4,6-triphenylpyrylium a fluorinated boron salt), 2,4,6-three (trichloromethyl)-1,3,5-triazo, 3,3'-carbonyl dicoumarin, thio-Michler's ketone, 2, 4,6-trimethylbenzimidyldiphenylphosphine oxide, oligo-(2-hydroxy-2-methyl-1(4-(1-methylvinyl)phenylacetone, 2-phenyl -2-Dimethylamino-1-(4-morpholinophenyl)-butanone and the like.

Meanwhile, in forming the hard coat layer 110 of the present invention and the conductive layer 120, an amine compound may be added to the photopolymerization initiator to avoid a decrease in sensitivity by inhibition of oxygen. Specific examples of the amine compound may include, but are not limited to, any of any of an aliphatic amine compound or an aromatic amine compound as long as it is nonvolatile. Suitable specific examples of one of the amine compounds are triethanolamine, methyldiethanolamine, and the like.

In the present invention, there is a mixing ratio of the components of the conductive layer 120, and the ratio of the binder component to the particles is 10/90 to 30/70, preferably 15/based on the weight basis. 85 to 25/75.

If less particles are used below the above specified values, the resulting film will have sufficient light transmission but will have a poor conductivity. In contrast, if less particles than the above specified values are used, the resulting film will disadvantageously have poor physical and chemical strength. The content of the photopolymerization initiator to be added is usually from 0.1 to 20 parts by weight, preferably from 1.0 to 15.0 parts by weight, based on 100 parts by weight of the binder component. If the amount is less than 0.1 part by weight, the photopolymerization process will be slow and require long-time illumination to meet the required hardness and abrasion resistance, and the resulting film will sometimes still Maintain uncured. On the other hand, if the added content is more than 20 parts by weight, the conductivity, abrasion resistance, weather resistance and the like of the film are lowered.

The basic components of the conductive layer 120 in the antireflection film having excellent scratch resistance and surface sliding properties according to the present invention are a binder component, a conductive particle, and a photopolymerization initiator. If necessary, additives such as a polymerization inhibitor, a curing catalyst, an oxidation inhibitor, a dispersing agent, a leveling agent, a decane coupling agent, and the like may be added.

In the present invention, the conductive layer 120 may further contain a conductive polymer such as polypyrrole and polyaniline, and the like, and an organometallic compound such as a metal chimere and a chelate, etc., The composition of the conductive layer 120 provides electrical conductivity. Meanwhile, the conductive layer 120 may further comprise, for example, an alkyl phthalate and a hydrolyzate thereof, colloidal cerium oxide, dry cerium oxide, wet cerium oxide or titanium oxide, etc., dispersed in the colloid. Inorganic particles such as cerium oxide particles to improve surface hardness.

In order to provide the desired degree of antistatic ability in the manner of the conductive layer 120, the surface resistance on the conductive layer 120 is preferably 1 × 10 ¹¹ ohm/sq or less, more preferably The ground is 1 x 10 ¹⁰ ohm/sq or less.

The total transparency of the conductive layer 120 of the present invention is preferably 40% or more, more preferably 60% or more in terms of sharpness and light transmittance.

At the same time, it has excellent scratch resistance and surface slip in accordance with the present invention. The resin layer 130 of the antireflective film of the movable nature is provided on the conductive layer 120 and substantially contains fluoride.

The fluorides used in the present invention are preferably those which are crosslinked by thermal energy or free radiation. The crosslinked fluoride may be a fluoropolymer having a crosslinking group or a fluorine monomer having an unsaturated group, or a monomer unit having a fluorine monomer and a crosslinking group. Fluoropolymer. Specifically, the fluoride is preferably composed of a fluoropolymer having a vinyl ether structure in the main chain. Preferably, the fluoropolymer has a fluorine-olefin chain, wherein the fluorine content is 30% by weight or more, and the number average molecular weight in terms of polystyrene is 500 or more, preferably For 5000 or more. These fluoropolymers are obtained by polymerizing a cured composition having a fluorine-compound and a vinyl ether compound, preferably by copolymerizing the fluorine-olefin compound with the fluorine-olefin compound. The cured component of the vinyl ether compound and the reactive emulsifier to be mixed if necessary are obtained by polymerization. The cured composition is preferably used to form the fluoropolymer containing a reactive emulsifier as a component. By using the reactive emulsifier, the fluoropolymer contained in the coating liquid can be sufficiently applied and applied flat. A preferred embodiment of one of the reactive emulsifiers is in particular a nonionic reactive emulsifier.

The unit derived from the fluoroolefin compound component is 20 to 70 mol%, preferably 25 to 65 mol%, more preferably 30, for the fluoropolymer contained in the resin layer 130. -60 moles %.

If the ratio of the unit derived from the fluoroolefin compound component is less than 20 mol%, the fluorine content in the final fluorocopolymer obtained It may be too little. Therefore, the refractive index of the resin layer 130 will then become insufficiently low. On the other hand, if the ratio of the unit derived from the fluoroolefin compound component is more than 70 mol%, the uniformity in the coating liquid will be disadvantageously deteriorated, so that it is difficult to form a uniform coating. film. At the same time, it is also disadvantageous in that it is difficult to achieve the desired light transmittance and adhesion to the substrate. For the fluoropolymer, the unit derived from the compound containing the vinyl ether structure is from 10 to 70 mol%, preferably from 15 to 65 mol%, more preferably from 30 to 60 mol. ear%. If the unit derived from the compound containing the vinyl ether structure is less than 10 mol%, the uniformity in the coating liquid will be deteriorated, so that it is difficult to form a uniform coated film. The resin layer 130 obtained by a coating liquid having a ratio of more than 70 mol% does not have the optical properties of the desired light transmittance and antireflection.

For the component of the compound containing such a vinyl ether structure, it is preferred to use a monomer containing a reactive functional group such as a hydroxyl group or an epoxy group, thereby forming a cured resin composition. When the object is used as a coating liquid, the strength of the cured film can be improved. The ratio of the entire monomer to the monomer comprising the hydroxyl or epoxy group is from 0 to 20 mol%, preferably from 1 to 20 mol%, and more preferably from 3 to 15 mol. ear%. If the ratio is more than 20 mol%, the resulting resin layer 130 may have poor optical properties, and the cured film will become weak. For a fluorocopolymer comprising a reactive emulsifier, the ratio of the unit derived from the reactive emulsifier component is usually from 0 to 10 mol%, preferably from 0.1 to 5 mol%. If the ratio is more than 10 mol%, the institute The resulting resin layer 130 is adhesive, so that it is difficult to handle the layer 130, and since the moisture resistance of the coating liquid is lowered, it is not a preferred resin layer.

Meanwhile, the low refractive index layer 130 contains 15 to 25 parts by weight of hollow cerium oxide with respect to 100 parts by weight of the binder resin. If the hollow cerium oxide particle content is less than 15 parts by weight, the refractive index is thus increased to deteriorate the antireflection property, that is, the reflectance will increase. On the other hand, if the hollow cerium oxide particle content is more than 25 parts by weight, the roughness of the surface is thereby increased to reduce the surface sliding property, and the expensive hollow cerium oxide also causes production cost. increase.

In addition to the fluoropolymer, it is preferred to mix a crosslinking compound to produce the resin layer 130 according to the present invention. This is because it can effectively provide some curing ability to improve the curing properties.

For example, a specific example of the above cross-linking compound is an amine-based compound, or a hydrogen-containing oxygen such as isobaerythritol, polyphenol, diol, alkyl decanoic acid, and the like Base compound. The amine-based compound used as a crosslinking compound may contain a total of two or more hydroxyl groups or epoxy groups which may be present in the fluorine compound (for example, in the hydroxyalkyl group) An amine group reacted with an amine group and either or both of the alkoxyalkylamine groups. One specific example thereof is a melamine compound, a urea compound, a benzoguanamine compound, a glycoluril compound, or the like. The melamine compound is known as a compound which generally has a skeleton in which a nitrogen atom is bonded to a triazabenzene ring, and one specific example thereof It is melamine, alkyl melamine, methylol melamine, alkoxymethyl melamine, and the like. However, it is preferred that a molecule has a total of two or more groups of either or both of a methylol group and an alkoxymethyl group. In particular, methylol melamine, alkoxymethyl melamine or the like obtained by reacting melamine with formaldehyde under an alkaline condition is preferred. The alkoxymethyl melamine is particularly preferred because of its good storage stability and good reactivity which is obtained in the cured resin component.

Both melamine and alkoxymethyl melamine are not particularly limited, and both are used as a methylol group of a crosslinking compound. For example, all resin forms obtained by this method can be used, which is described in the document entitled 'PLASTIC MATERIAL[8]UREA MELAMINE RESIN' (issued by Nitgan High School Newspapers Publishing Company) ). In addition to urea, the urea compound may be polyhydroxymethyl urea, an alkoxymethyl urea which is a derivative thereof, a methylated uron, and an alkoxy group having an uron ring. Methyl uron (uron) and so on. For the compound such as a urea derivative, all of the resin forms described in the above documents can be used.

The crosslinking compound is used in an amount of 70 parts by weight or less, preferably 3 to 50 parts by weight, more preferably 5 to 30 parts, per 100 parts by weight of the fluorocopolymer. The weight. If the cross-linking compound used is less than 3 parts by weight, the durability and curing effect of the film formed from the coating may be insufficient.

If the system is more than 70 parts by weight, it is difficult to concentrate with fluorine. Gelation is avoided in the reaction of the compound. At the same time, in some cases, the cured film will not be strong enough because the resulting cured film does not have a low refractive index.

The resin layer 130 preferably contains a fluororesin having cerium oxide particles and/or a decane linking agent, and/or an alkoxyalkylene group to achieve abrasion resistance.

The cerium oxide particles preferably comprise dry cerium oxide, wet cerium oxide, cerium oxide particles dispersed in a colloid, and the like. The particle size of the cerium oxide particles is usually 0.001 to 0.2 μm, preferably 0.005 to 0.15 μm, in terms of the average primary particle size (spherical relative diameter: BET method).

If the average particle size falls within the above specific range, the light transmittance of the resulting film (resin layer) will not be lowered, and there will be no difficulty in improving the surface hardness. At the same time, the shape of the cerium oxide particles is preferably spherical or hollow. It is possible to use two or more types of cerium oxide particles, each of which has a different particle size. These cerium oxide particles can be used after surface treatment. For this surface treatment, it is possible to use, for example, a plasma discharge action, a corona discharge, and a chemical surface treatment using a bonding agent. However, chemical surface treatment is preferred. A decane linker is preferably used as a linker for chemical surface treatment. The ratio of the particles derived from cerium oxide in the solid of the component is from 5 to 50%, preferably from 5 to 40%, more preferably from 5 to 30%. The ratio of the cerium oxide particles in the solids of the component falling within the above specific range will be obtained. The surface hardness required for the resulting resin layer, and good optical properties such as light transmittance and low reflectance.

The component of the decane coupling agent is represented by the next compound or a hydrolyzate thereof.

[Chemical Formula 1]

R(1) _a R(2) _b SiX _4-(a+b) wherein R(1) or R(2) is a hydrocarbyl group having an alkyl group, an alkenyl group, an allyl group or a halogen group, respectively. a group, an epoxy group, an amine group, a thiol group, a methacryloxy group, or a cyano group; the X system is one selected from the group consisting of an alkoxy group, an alkoxy-alkoxy group, a halogen group and a decyloxy group. a substituent which can be hydrolyzed. In the above Chemical Formula 1, a and b are respectively 0, 1, or 2; and (a+b) is 1, 2 or 3. Preferably, the ratio of the component from the decane linking agent to solids is from 5 to 70%, preferably from 15 to 65%, more preferably from 20 to 60%. The ratio of the component falling within the above-mentioned specific range from the decane coupling agent can obtain the desired surface hardness of the resulting resin layer, and further obtain a desired ratio such as light transmittance and low reflectance. Good optical properties.

The fluororesin having an alkoxyalkylalkyl group is represented by the next compound or a hydrolyzate thereof.

[Chemical Formula 2]

R(3) _c R(4) _d SiX _4-(c+d) , wherein R(3) or R(4) is a fluorinated alkyl, alkenyl, allyl, methacrylic acid, respectively An oxy group, or a hydrocarbyl group of a (meth) acrylonitrile group; and the X system is one selected from the group consisting of an alkoxy group, an alkoxy-alkoxy group, a halogen group or a decyloxy group. base. In the above Chemical Formula 2, c and d are respectively 0, 1, 2 or 3; and (c+d) is 1, 2 or 3.

The ratio of the component derived from the fluororesin having an alkoxyalkylalkyl group to the solid is preferably from 20 to 90%, preferably from 25 to 80%, more preferably from 30 to 70%. If the ratio of the component derived from the fluororesin having an alkoxyalkylalkyl group falls within the above specific preferred range, the resulting resin layer will have sufficient surface hardness and, in addition, can satisfy its needs. Such as light transmission and low reflectivity and similar optical properties.

It may use a curing catalyst to cause the coating liquid to solidify when the resin layer 130 of the present invention is formed. The curing catalyst preferably promotes the condensation reaction of the decane linking agent. One of the preferred curing catalysts is specifically an acidic compound. Among them, the Lewis acid system is the best. A specific example of the Lewis acid is a metal alkoxide or a metal chelate, such as, for example, an acetonitrile acetate aluminide or the like.

The content of the curing catalyst can be appropriately determined as needed, and is, for example, typically 0.1 to 10 parts by weight based on 100 parts by weight of the decane coupling agent.

Any of additives such as a polymerization inhibitor, an oxidation inhibitor, a dispersant, a leveling agent, and the like may be added at the time of forming the resin layer 130 or if it is required in the present invention.

In order to produce excellent scratch resistance in accordance with the present invention The antireflection film having surface sliding properties has a high transparency, and the haze value in the stacked film is recommended to be less than 3.0%, preferably less than 2.7%. If the haze value is equal to or greater than 3.0%, the transmittance may be insufficient.

In order to achieve good abrasion resistance of the surface of the resin layer 130 in the present invention, the surface of the resin layer needs to have fine unevenness. By the unevenness, the relationship between the unevenness of the surface and the abrasion resistance is considered to result in the following mechanism of action. That means that when the steel wool slides over the rough surface, the steel wool will only contact the convex portion of the surface on the fine uneven surface, so the contact area of the surface of the resin layer will It can be minimized as it is required, whereby the abrasion resistance can be particularly improved.

The arithmetic mean unevenness (Ra) value on the surface of the resin layer 130 is substantially preferably between 0.003 μm and 0.025 μm, more preferably between 0.004 μm and 0.022 μm, and still more Preferably, it is between 0.004 μm and 0.020 μm. If the arithmetic mean unevenness (Ra) value on the uneven surface exceeds the above-mentioned specific preferred range, the haze value in the resin layer will be higher than required and thus the light transmittance Will be reduced. If the arithmetic mean unevenness (Ra) value on the uneven surface is lower than the specific preferred range described above, it will be difficult to improve the abrasion resistance. In order to form a fine uneven surface on the resin layer, the resin layer preferably contains, for example, colloidal cerium oxide, dry cerium oxide, wet cerium oxide, titanium oxide, glass frit, alumina, carbonization. Niobium, tantalum nitride, etc., or inorganic particles of cerium oxide particles dispersed in a colloid. Better The system contains cerium oxide particles dispersed in a colloid.

In particular, two or more types of cerium oxide particles are preferably used, each of which has a different particle size distribution. For example, subtle unevenness can be achieved by averaging a type of average particle size between 0.001 and 0.02 μm, while another type of cerium oxide having an average particle size between 0.02 and 0.2 μm. The particles are mixed and implemented.

In order to make the surface of the stacked film on the side of the resin layer 130 in the present invention have a low reflection ability, the maximum reflection capacity of the stacked film must be less than 4%, and the minimum The reflection capacity needs to be more than 0.2%.

If the reflection force exceeds the above-described specific preferred range, the ambient light source can be easily illuminated to achieve low reflection capability on the surface of the stacked film.

In order to achieve a lower reflection effect on the surface of the side of the resin layer 130 of the present invention, the product of the refractive index and the thickness of the conductive layer 120 and the resin layer 130 are preferably respectively preferably It is 1/4 of the wavelength of the target light (usually visible light). Therefore, the value obtained by the conductive layer 120 and the resin layer 130, which is four times the product of the thickness of each layer and the refractive index (n), preferably falls between 380 and 780 nm. That is, the relationship between the refractive index (n) and the thickness (d) of the conductive layer 120 and the resin layer 130 preferably respectively meets the following Equation 1: [Equation 1] n. d=λ/4

(where λ represents the wavelength range of visible light, typically 380 nm λ 780nm).

In order to achieve a lower reflectance on the stacked film of the present invention, the thickness of the conductive layer 120 is preferably from 0.01 to 1.0 μm, more preferably from 0.06 to 0.12 μm. The thickness of the resin layer 130 is preferably 0.01 to 1.0 μm, more preferably 0.07 to 0.12 μm. Meanwhile, if the thickness of the conductive layer 120 and the resin layer 130 is not within the range, it does not conform to Equation 1, and a lower reflection cannot be achieved on the surface of the stacked film on the side of the resin layer 130. ability.

In order to achieve a lower reflectance on the surface of the stacked film on the side of the resin layer 130 of the present invention, the refractive index of the resin layer 130 is preferably smaller than that of the conductive layer 120. That is, the ratio of the refractive index of the resin layer 130 to the refractive index to the conductive layer 120 is preferably less than 1.0, more preferably 0.6 to 0.95. Meanwhile, the refractive index of the resin layer 130 is preferably at most 1.47, more preferably from 1.35 to 1.45. It is difficult to form a resin having a refractive index of less than 1.35. If the refractive index of the resin layer is higher than 1.47, the resulting film has a higher reflective ability.

Hereinafter, a method for producing an antireflection film having excellent scratch resistance and surface sliding properties according to the present invention will be described.

According to the present invention, the antireflection film having excellent scratch resistance and surface sliding property can be hardened by containing a (meth) acrylate compound on at least one side of the base film 100. The coating layer 110, a conductive layer 120 containing conductive particles, and a fluorine-containing alloy The resin layer 130 of the material is produced by sequentially stacking.

In the present invention, the conductive layer 120 and the resin layer 130 may be applied to the substrate film by applying a coating liquid preferably having a component dispersed in a solvent, and then applying the coating liquid. Dry and cure.

The solvent used to form the conductive layer 120 of the present invention is mixed to improve the coating or print processability of the composition of the present invention while improving the dispersibility of the particles. Any known conventional solvent can be used as long as it can dissolve the binder component. Particularly in the present invention, in terms of viscosity stability and drying efficiency of the composition, one of the preferred types of the solvent is an organic solvent having a boiling point of 60 to 180 ° C, and a preferred type is an oxygen atom. An organic solvent because of its good compatibility with metal particles. Preferred specific examples of such organic solvents are, in particular, methanol, ethanol, isopropanol, n-butanol, tert-butanol, ethylene glycol monomethyl ether, 1-methoxy-2-propanol, propylene glycol. Monomethyl ether, cyclohexanone, butyl acetate, isopropylacetone, methyl ethyl ketone, methyl isobutyl ketone, diethyl acetonacetone, acetonitrile, and the like. The above preferred solvents may be used independently, or they may be used as a mixture of two or more types thereof.

At the same time, the content of the organic solvent can be determined such that it can be used to produce a composition having a viscosity which can produce a good processability according to the coating method and the printing method. However, the solid content required is suitably not more than 60% by weight, preferably 50%. In general, a suitable method comprises adding the particles (b) to the solution obtained by dissolving the binder in the organic solvent; the resulting mixture is, for example, a paint shaker, a ball mill, Sand mill, 3-roller mixing A dispersing machine such as a combiner, an artwriter mixer, a homomixer or the like is dispersed; and then a photopolymerization initiator is added and then the mixture is uniformly dissolved.

Meanwhile, the resin layer 130 is preferably formed by a step of applying, drying and solidifying the liquid, the liquid system being produced by dispersing the cured composition composed of the fluorine compound in at least one type of solvent. The solvent is selected from the group consisting of methanol, ethanol, isopropanol, n-butanol, tert-butanol, ethylene glycol monomethyl ether, 1-methoxy-2-propanol, propylene glycol monomethyl ether a group consisting of cyclohexanone, butyl acetate, isopropylacetone, methyl ethyl ketone, methyl isobutyl ketone, diethyl acetonide and acetonitrile.

In this case, the content of the solvent to be used may be appropriately controlled depending on the viscosity of the composition, the thickness of the cured film to be obtained, the drying temperature condition, and the like.

The layered structure of the stacked film according to the present invention on at least one side of the substrate film 100 is sequentially a hard coating layer 110 containing a (meth) acrylate compound, and one containing conductive particles. The conductive layer 120 and the resin layer 130 containing a fluorine compound. Another specific example of the hierarchical structure is prepared by forming the conductive layer 120 on both side edges of the base film 100, but in this case, it is preferable that the two conductive properties are A resin layer 130 is formed on at least either side of the conductive layer 120 of the layer 120. Meanwhile, if a plurality of conductive layers 120 are formed on one side of the base film 100, it is preferable to form a plurality of resin layers 130 such that the resin layer 130 can be disposed on the base film 100. On the outermost surface on the same side. For the substrate film 100, an initial An initial layer or a transparent conductive layer may be formed on opposite sides of the hard coat layer 110. A moisture-resistant layer or a protective layer may also be formed on the surface of the resin layer. The thickness of the moisture barrier layer and the protective layer is preferably not more than 20 nm so as not to affect the desired antireflection property.

The film of the display device of the present invention for displaying an image is formed by forming an adhesive or adhesive layer on the resin layer 130 and then bonding a protective film to the adhesive or adhesive layer. Produced. The adhesive or adhesive layer is not limited to a particular type as long as the layer can be bonded by adhesion or adhesion. The adhesive or adhesive for forming the adhesive or adhesive layer may be based on a rubber-based, ethylene-based polymerization based on condensation polymerization, based on a thermosetting resin. Or based on 矽 and so on. Among the foregoing specific examples, a typical rubber-based adhesive or adhesive is a butadiene-acrylonitrile copolymer (NBR) based on butadiene-styrene copolymer (SBR). Based on a chloroprene polymer based on an isobutylene-isoprene copolymer (butyl rubber) or the like. Typical ethylene-based adhesives or adhesives based on propylene resin, based on styrene resin, based on vinyl acetate-ethylene copolymer or vinyl chloride - Based on vinyl acetate copolymers, and the like. Typical adhesives or adhesives based on condensation polymerization are based on polyester resins. Typical thermoset resin based adhesives are epoxy based, based on urethane resins, based on formalin resins, and the like. These types of resins can be used independently or in combination of two or more of them.

The adhesive or adhesive may be any of a solvent type or a non-solvent type. The adhesive layer or adhesive layer can be formed by a commonly known method such as coating action or the like with the above-mentioned adhesive or adhesive. At the same time, the adhesive layer or adhesive layer may contain a coloring agent. It can be easily obtained by mixing a coloring agent containing a dyeing material such as a dye and a pigment with an adhesive or an adhesive. In the case of containing a coloring agent, the transmittance of the stacked film at 550 nm preferably falls within 40 to 80%. Meanwhile, if the film is used in a plasma display, the transmittance range can be obtained by using a viscous layer or an adhesive layer containing a dyeing material, since the transmitted light must be neutral. Gray or blue-gray, and the color purity and contrast of the light emitted in the display can be improved.

The resin material containing the protective film is not limited to any particular type, and a resin material for a known plastic substrate film can be appropriately selected. A typical resin material for the polymer of the protective film material is a polymer or copolymer having a unit selected from the group consisting of esters, ethylene, propylene, diacetic acid, triacetic acid, and benzene. A group consisting of ethylene, carbonate, methylpentene, anthracene, diethyl ether ethyl ketone, nylon, acrylate, a resin based on a fatty cycloolefin, and the like. In the case of the resin material, it is preferred to use a polymer having a unit selected from an ethylene or propylene-based resin such as polyethylene or polypropylene, or, for example, polyparaphenylene. A group of ethylenic diesters based on ester-based resins, and the like. In particular, in terms of light transmittance and mechanical properties, it is preferred to use a substrate film comprising a unit of a polymer having an ester-based resin.

The film for use in a display device according to the present invention is formed by sandwiching an adhesive layer or an adhesive layer on the film of a display device and bonding it to an LCD, plasma display panel (PDP). , the electroluminescent display device (ELD), the CRT, or the mobile digital assistant, etc. on the display surface and/or surface of the front side panel.

It can be adhered to the film of a display device by a sticky layer or an adhesive layer, and bonded to, for example, an LCD, a plasma display panel (PDP), an electroluminescent display device (ELD), The CRT, or the mobile digital assistant or the like, is displayed on the display side of the display device to obtain a display device screen.

The method of laminating the stacked film on the display side and/or the surface of the front side panel of the display device is not limited to a particular type, but for example, for a display device or a The display comprises a film of the stacked film, which can be applied to the display element or the substrate film 100 by applying an adhesive layer or an adhesive layer to the film 100 by a nip roll. The resin layer 130 in the stacked film may be the surface layer, and thereby the display element is bonded to the substrate film 100 under the adhesive or adhesive layer.

A specific example of a front side protective plate (PDP front side panel) of a plasma display panel will be described below with reference to the drawings, wherein the anti-reflection having excellent scratch resistance and surface sliding properties according to the present invention can be used. Film, but it should be noted that the present invention should not be limited to this specific example. The antireflection film having excellent scratch resistance and surface sliding property according to the present invention is laminated on a glass layer, an acrylic layer, and a polycarbonate On both sides of the ester layer or the like, a viscous layer or an adhesive layer is sandwiched on the side of the base film 100. The transparent substrate of the protective film of the front panel of the PDP and the adhesive layer 150 may have an electromagnetic wave shielding layer, a near-infrared light shielding layer, an ultraviolet shielding layer and the like.

At the same time, the present invention also needs to cover a display device by bonding the anti-reflection film described above to the side of an image display device or the surface of a front side panel.

Hereinafter, the present invention will be described in more detail with the specific examples and comparative examples.

[Specific example 1]

Form a hard coating (110)

The polyfunctional propylene-based resin coating material (50% solids) (KZ7528, available from JSR Corporation) is a micro-gravure coater with a thickness of 100 μm. It is applied to the surface of the base film 100 containing a polyester film (Lumirror, available from Dorey Corporation). After the coating was dried at 80 ° C for 5 minutes, an ultraviolet ray having an energy of 1.0 J/cm ² was irradiated thereon to cure the coating, and thus a hard coat layer 110 having a thickness of about 10.0 μm was formed.

Forming a high refractive index layer (120)

The coating material containing indium tin oxide (ITO), which has 10% solids (HRA-196, available from Japan Chemical Co., Ltd.), was dissolved in isopropanol. The mixture is agitated to produce a coating liquid. The resulting coating liquid is then applied to the surface of the hard coat layer 110 using a micro gravure applicator which is dried at 80 ° C for 5 minutes and then at an energy of 1.0 J/cm ² . Ultraviolet rays were irradiated to cure the coating, and a high refractive index layer 120 having a thickness of about 0.1 μm was produced, and one of the refractive indices was (n) = 1.62.

Forming a low refractive index layer (130)

The coating material comprising a fluorocopolymer (fluoroolefin/vinyl ether copolymer) having 10% solids relative to 100 parts by weight of binder resin (LR-S3020, which is available from TORAY Corporation) The hollow cerium oxide is 15 parts by weight) dissolved in isopropyl alcohol. The resulting mixture is agitated to produce a coating liquid which is then applied to the surface of the high refractive index layer 120 using a micro-gravure applicator to produce a layer having a thickness of approximately 112 to 116 nm. The layer was dried at 80 ° C for 5 minutes, and then irradiated with ultraviolet rays having an energy of 1.0 J/cm ² to cure the coating layer, and a low refractive index layer 130 having a thickness of about 0.1 μm was formed, and one of the layers was refracted. The rate is (n) = 1.39.

[Specific example 2]

A base film 100, a hard coat layer 110, and a high refractive index layer 120 were formed under the same conditions and in the same manner as in Specific Example 1. Next, the coating material comprising a fluorocopolymer (fluoroolefin/vinyl ether copolymer) having 10% solids relative to 100 parts by weight of binder resin (TU-2207, which may be from JSR The company obtained), the hollow cerium oxide is 20 parts by weight) is dissolved in isopropyl alcohol. The resulting mixture is agitated to produce a coating liquid which is then applied to the high refractive index layer 120 using a micro-gravure applicator to produce a layer having a thickness of approximately 106 to 110 nm. The coating was dried at 80 ° C for 5 minutes and irradiated with ultraviolet rays having an energy of 1.0 J/cm ² to cure the coating, and a low refractive index layer 130 having a thickness of about 0.1 μm was formed, and one of the refractive indices was formed. The system is (n) = 1.39.

[Comparative Example 1]

For a stacked film, a substrate film 100, a hard coat layer 110, and a high refractive index layer 120 were formed in the same manner as in Concrete 1. Next, the coating material comprising a fluorocopolymer (fluoroolefin/vinyl ether copolymer) having 10% solids relative to 100 parts by weight of binder resin (LR-S3000, which can be from TORAY The company obtained), the hollow cerium oxide is 40 parts by weight) is dissolved in isopropyl alcohol. The resulting mixture is agitated to produce a coating liquid which is then applied to the high refractive index layer 120 using a micro-gravure applicator to produce a layer having a thickness of approximately 112 to 116 nm. The coating was dried at 80 ° C for 5 minutes and irradiated with ultraviolet rays having an energy of 1.0 J/cm ² to cure the coating, and a low refractive index layer 130 having a thickness of about 0.1 μm was formed, and one of the refractive indices was formed. The system is (n) = 1.37.

The refractive index of the low refractive index layer 130 in the specific examples 1 and 2 is 1.39, and the refractive index of the low refractive index layer 130 in the comparative example is 1.37, which is due to the comparison with the conventional one. The coating material (LR-S3000, which can be obtained from TORAY), the modified coating material The system has a lower content of hollow cerium oxide (LR-S3020, TU-2207). Since the content of hollow cerium oxide in the modified coating material is reduced by about 50% compared to the hollow cerium oxide content of the conventional coating material, the surface roughness will be lowered, which can improve the surface sliding property and Increase scratch resistance.

In the following, one of the evaluation and measurement methods in the present invention will be described in detail.

[Experiment 1: Evaluation of steel wool hardness]

After the steel wool # 0000 ten times back and forth movement of a load of 250g _f / cm ^2, the number of scratches calculated. According to the number of scratches, the hardness is divided into the following five levels (level 5: no scratches, level 4: 1-5 scratches, level 3: 5-10 scratches, level 2: more than 10 Scratch, level 1: scratches on the entire surface).

[Experiment 2: Determination of haze value]

The haze value was measured using a direct reading haze value computer obtained from Sgasikenki.

[Experiment 3: Evaluation of surface resistance (antistatic ability)]

The surface resistance was measured by HIRESTA obtained from Mitsubishi Uka Corporation.

[Experiment 4: Determination of reflectivity]

The reflectance was measured by a spectrophotometer U-3410 obtained from Hitachi Keisoku Corporation. The scratches were uniformly formed on the other side of the sample film with a waterproof sandpaper of 320 to 400, and a black coating material was applied thereto to completely exclude the reflection phenomenon from the other side. For the surface of the resin layer, the measurement is performed at incident light of 6-10 degrees. Here, the standard reflection ability of the side is represented at 380 nm. λ The minimum value in the wavelength range of 780 nm.

[Experiment 5: Determination of friction coefficient]

Here, a TR type friction gauge of TOYOSEIKI Co., Ltd. is used, and a single encoder U-228 of DENSHIKAGAKU of Japan is used for measurement. The measurement is based on the standards of the American Society for Testing and Materials D1894. A film to be measured was placed between the upper and lower end plates, and its static and dynamic coefficients of friction were measured at a weight of 200 ± 5 g and a measurement speed of 152 ± 30 mm.

It will be apparent to those skilled in the art that various modifications and changes can be made without departing from the true spirit and scope of the invention. It is to be understood that the foregoing description is intended to be illustrative and not restrictive of the scope of the invention

100‧‧‧Basic film

110‧‧‧hard coating

120‧‧‧High refractive index layer

130‧‧‧Low refractive index layer

140‧‧‧Protective film

150‧‧‧Adhesive layer

160‧‧‧ release film

Fig. 1 shows the principle of an antireflection film; Fig. 2 is a cross-sectional view schematically showing a film of a stacked structure of the antireflection film according to the present invention.

100‧‧‧Basic film

110‧‧‧hard coating

120‧‧‧High refractive index layer

130‧‧‧Low refractive index layer

140‧‧‧Protective film

150‧‧‧Adhesive layer

160‧‧‧ release film

Claims (11)

An antireflection film having excellent scratch resistance and surface sliding properties, wherein a hard coating layer containing a (meth) acrylate compound, a high refractive index layer containing a binder resin and conductive particles, and The low refractive index layer containing the fluorine compound is sequentially stacked on at least one side of the base film, wherein the surface of the low refractive index layer has fine unevenness, and one of the sides of the low refractive index layer is static The coefficient of friction is equal to or less than 0.5, and the coefficient of dynamic friction is equal to or less than 0.5, and wherein the coefficient of static friction and the coefficient of dynamic friction are measured according to the standard of ASTM D 1894, and the thickness of the high refractive index layer is 0.01 μm. The thickness of the low refractive index layer is between 1.0 μm and 1.0 μm. The film of claim 1, wherein the low refractive index layer comprises hollow silica having a weight of from 15 to 25 parts by weight relative to 100 parts by weight of the binder resin. The film of claim 1, wherein the anti-reflective film has a haze value of less than 3.0%. The film of claim 1, wherein the hard coating has a thickness of between 1 μm and 50 μm. The film of claim 1, wherein the conductive particles of the high refractive index layer are metal oxide particles. The film of claim 1, wherein the weight ratio of the binder resin to the conductive particles in the high refractive index layer is from 10/90 to 30/70. The film of claim 1, wherein the fluorine compound of the low refractive index layer is a fluorine-containing copolymer having a vinyl ether structure in a main chain. The film of claim 1, wherein the low refractive index layer comprises cerium oxide particles having a particle size of from 0.001 μm to 0.2 μm. The film of claim 8, wherein the cerium oxide particles have a particle size distribution of two or more types of components. The film of claim 1, wherein the low refractive index layer further contains a decane linking agent represented by the following Chemical Formula 1 or a hydrolyzate thereof or a reactant thereof: [Chemical Formula 1] R (1) _{a R (2) b SiX 4-} (a + b), wherein, R (1) or R (2) is based having a hydrocarbon group, an alkenyl group, an allyl group or a group of a halogen group, an epoxy a group, an amine group, a hydrogenthio group, a methacryloxy group, or a cyano group; the X system is selected from an alkoxy group, an alkoxy-alkoxy group, a halogen group or a decyloxy group to be hydrolyzed. a substituent; and a and b are 0, 1, or 2, respectively; and (a+b) is 1, 2, or 3. The film of claim 1, wherein the fluoride in the low refractive index layer further contains a fluororesin having an alkoxyalkylalkyl group represented by the following Chemical Formula 2 or a hydrolyzate thereof: Chemical formula 2] R(3) _c R(4) _d SiX _4-(c+d) wherein R(3) or R(4) is a fluorinated alkyl group, an alkenyl group, an allyl group, a group a propylene oxy group, or a (meth) acrylonitrile group; the X system is selected from an alkoxy group, an alkoxy-alkoxy group, a halogen group or a decyloxy group. a substituent; and c and d are 0, 1, 2 or 3, respectively; and (c+d) is 1, 2 or 3.