KR100857373B1 - Composition for coating an antireflection film, an image display device comprising an antireflection film and an antireflection film using the same - Google Patents

Abstract

The present invention relates to an antireflective film coating composition, an image display device including the antireflective film and the antireflective film using the same, and more particularly, a fluorine-containing compound, a reactive silicone compound, a (meth) acrylate compound, and a polymerization initiator. And a coating composition comprising a solvent, an antireflective film and an antireflective film using the same, wherein the antireflective film has low reflectance and high transmittance and has sufficient antifouling property by using the composition. And an image display device including the same.

Anti-reflection film, fluorine-containing compound, silicone compound, reflectance, transmittance

Description

A composition for coating an anti-reflection film, an image display device including an anti-reflection film and an anti-reflection film using the same, and an anti-reflection film.

1 is a schematic cross-sectional view of an antireflective film according to an embodiment of the present invention,

2 is a reflectance spectrum obtained from Example 1. FIG.

<Explanation of symbols for the main parts of Figure 1>

1: Base material 2: Hard coat layer

3: high refractive layer 4: low refractive layer

The present invention relates to an antireflective film coating composition, an image display device including an antireflective film and an antireflective film using the same, and more particularly, two or more different fluorine-containing compounds, reactive silicone compounds, and (meth) acryl The present invention relates to a composition for coating a low refractive index layer containing a rate compound, a polymerization initiator, and a solvent, an antireflection film, and an antireflection film using the same.

Recently, as the use of display devices represented by Liquid Crystal Display (PDP), Plasma Display Panel (PDP), Cathode Ray Tube (CRT) or Electro Luminance Display (ELD) is becoming more common, not only wear resistance and antifouling property of display surface but also such display devices When used outdoors and under bright lighting, the performance of preventing external light such as sunlight and fluorescent light from being reflected on the display surface is required.

In order to impart this anti-reflection function, a method of initially depositing one or more layers having different refractive indices on a plastic substrate was mainly used. However, the deposition method has a problem that the cost is notably high and large-area coating cannot be performed. have. Accordingly, a method of forming a low refractive film using a fluorine-containing resin which is an organic resin having a low refractive index has been proposed.

However, in general, fluorine-containing resins are not soluble in general purpose solvents, so fluorine-containing solvents should be used. However, when fluorine-containing solvents are used, the manufacturing cost is high, and when the coating film is formed of fluorine-containing resins, the film has insufficient scratch resistance and hardness. Durability can also be a problem. WO96 / 22356 discloses a method for coating amorphous tetra fluorine ethylene copolymers by dissolving them in a fluorine-containing solvent.

Therefore, the amount of fluorine must not be high in order to be able to dissolve the fluorine-containing resin in a general purpose solvent. To this end, it is also possible to form a coating film by mixing a fluorine-containing resin with an acrylate resin containing no fluorine, the method of which is disclosed in Japanese Patent Laid-Open No. 7-42031. However, in order to realize sufficient scratch resistance and hardness of the coating film, an acrylate resin containing no fluorine should be mixed at a predetermined level or more, and in this case, the refractive index of the coating solution is increased, which hinders antireflection characteristics.

In addition, when the coating film is formed of a fluorine-containing resin, there is a problem of poor stain resistance. In order to improve the antifouling property of the coating film, a method of introducing a silyl group into a fluorine-containing resin (Japanese Patent Laid-Open No. 5-025183), a method of introducing a hydrolyzate of an organosilane and a partial condensate thereof in a coating solution (Japanese Patent Publication) 6-98703, Japanese Patent Application Laid-Open No. 63-21601, and a method of blending a polycondensation product of a fluorine-containing resin and an organosilane (Japanese Patent Application Laid-open No. Hei 13-14690). However, these methods may obtain a coating film having high antifouling and scratch resistance, but may require a separate process in preparing the coating solution, or may be a problem in long-term storage of the coating solution.

The present invention has been made to solve the above problems, it is an object of the present invention to provide an antireflection film coating composition excellent in antifouling properties and hardness and soluble in a general purpose solvent without deterioration of antireflection performance.

It is another object of the present invention to provide an antireflection film having excellent antifouling properties and hardness using the antireflection film coating composition.

Still another object of the present invention is to provide an image display device including the antireflection film.

One aspect of the present invention for achieving the above object,

(i) fluorine-containing compounds;

(Ii) reactive silicone compounds;

(Iii) a (meth) acrylate compound;

(iv) photopolymerization initiators; And

(v) relates to a composition for coating an antireflection film comprising a solvent.

Another aspect of the present invention for achieving the above object,

(i) a substrate;

(Ii) a hard coat layer;

(?) High refractive layer; And

(iv) an antireflection film comprising a low refractive layer,

It is related with the antireflection film which a low refractive layer consists of said coating composition.

Another aspect of the present invention for achieving the above object relates to an image display device manufactured by including the anti-reflection film.

Hereinafter, the present invention will be described in more detail.

The antireflective film coating composition according to one embodiment of the present invention comprises a fluorine-containing compound represented by the following formula (1).

[Formula 1]

 (In Formula 1, Rf is a perfluoro group, and R1 represents a hydrogen atom or a methyl group.)

In the fluorine-containing compound of Formula 1, Rf may have a molecular structure as shown in Formula 2 below.

[Formula 2]

(In Formula 2, Rf1 is a straight chain perfluoro group having 1 to 10 carbon atoms, and Rf2, Rf3, Rf4, and Rf5 are straight chain perfluoro groups having 1 to 14 carbon atoms.)

In order to use the fluorine-containing compound of Formula 1 as a resin for forming a film, it is preferable to have all of characteristics of molecular structure and molecular structure suitable for ease of synthesis, low refractive index, ease of ultraviolet curing, and coating layer formation.

The amount of the fluorine-containing compound of Formula 1 is preferably 70 to 95 parts by weight based on 100 parts by weight of the total solids. If the content is less than 70 parts by weight is not sufficient anti-reflection performance, if the content is more than 95 parts by weight may be insufficient hardness and scratch resistance of the coating layer.

In addition, in the present invention, since the properties of the low refractive index and the ultraviolet curing are opposite to each other, the different properties of Chemical Formula 1, which may represent the respective properties as necessary in providing all of the above properties to the fluorine-containing compound, are different from each other. You may mix and use 2 or more types of fluorine-containing compounds. Among the two or more different fluorine-containing compounds of Formula 1, the content of each fluorine-containing compound is preferably 10 parts by weight or more based on 100 parts by weight of the total fluorine-containing compounds. When each fluorine-containing compound is used in less than 10 parts by weight of the total fluorine-containing compound, the properties that can be realized by mixing the fluorine-containing compound may not appear.

In the low refractive coating composition according to an embodiment of the present invention, the reactive silicone compound may be represented by the formula (3) or (4).

[Formula 3]

(In Formula 3, X1, X2, X3 are each hydrogen or methyl group, the same or different species, at least one of R1, R2 is a reactor capable of curing reaction, the same or different species, c is 3 to 1000 Is an integer.)

 [Formula 4]

(In Formula 4, X1, X2 are each hydrogen or methyl group, the same or different species, at least one of R1, R2 is a reactor capable of curing reaction, the same or different species, c is an integer of 3 to 1000. )

According to one embodiment of the invention, the reactive silicone compound is in the form of an oil (Oil) of polysiloxane, methylhydropolysiloxane, trimethyl siloxane methylhydro siloxane copolymer, dimethyl siloxane methylhydro siloxane copolymer and poly dimethyl siloxane, respectively As the compound containing at least one functional group in the terminal group or the molecule in the basic structure, it may be one kind or a mixture of two or more kinds selected from these groups. The reactive silicone compound may have a different manufacturing method depending on the kind of the functional group included in the terminal group.

Functional groups contained in the terminal groups include amino groups, epoxy groups, alicyclic epoxy groups, carbonyl groups, methacrylate groups, polyethyl groups, melcapto groups, carboxyl groups, phenol groups, and hydroxy groups.

The usage-amount of the said reactive silicone compound is 0.1-15 weight part with respect to 100 weight part of total solids, More preferably, it is 0.2-10 weight part. If the content is less than 0.1 parts by weight, the antifouling property of the coating film may not be sufficient. If the content is more than 15 parts by weight, the appearance of the coating film may be poor and whitening may occur.

The (meth) acrylate compound according to one embodiment of the present invention is a monomer having a functional group capable of a cationic polymerization reaction such as an unsaturated bond or an epoxy group capable of polymerization reaction such as a methacryloyl group and a methacryloyloxy group in a molecule. , Oligomers or polymers.

It is preferable that the usage-amount of the said (meth) acrylate compound is 1-20 weight part with respect to 100 weight part of total solids. If the content is less than 1 part by weight, the curing efficiency of the coating layer may not be high enough or the appearance of the coating film may not be uniform. If the content exceeds 20 parts by weight, the antireflection performance may be deteriorated.

In addition, the solid content composed of the fluorine-containing compound, the reactive silicone compound and the (meth) acrylate compound of Formula 1 is preferably 1 to 20 parts by weight based on 100 parts by weight of the total coating liquid. If the solid content is less than 1 part by weight, there is a problem that the antireflection performance is not expressed because the thickness of the coating layer is not sufficient. If the solid content is more than 20 parts by weight, the wavelength band showing the lowest reflectance value is out of the visible light range.

As the polymerization initiator according to one embodiment of the present invention is a general purpose used in general polymerization compositions, both photopolymerization initiators and radical initiators can be used. Particularly, polymerization initiators having good starting efficiency without being affected by oxygen interference are preferable.

The usage-amount of the said polymerization initiator is 0.1-10 weight part with respect to 100 weight part of total solids, More preferably, it is 0.5-5 weight part. If the content is less than 0.1 parts by weight, the hardness of the prepared coating film is not sufficient, if it exceeds 10 parts by weight because the polymerization initiator itself reacts with the radicals to inhibit the polymerization.

Examples of the solvent in the present invention include alcohols such as methyl alcohol, ethyl alcohol, propanol, isopropanol, and 1-methoxy-2-propanol; Ketones such as methyl isobutyl ketone and methyl ethyl ketone; Esters such as methyl acetate and ethyl acetate; Aromatic compounds such as toluene, xylene and benzene; One or a mixture of two or more selected from the group of ethers such as diethyl ether may be used, but is not limited thereto.

In addition, the present invention may include colloidal silica modified by the fluorine-containing silane coupling agent in the composition in order to improve the scratch resistance and antifouling property of the coating film, if necessary.

Another aspect of the present invention is an antireflection film comprising a base material, a hard coat layer, a high refractive index layer and a low refractive layer, wherein the low refractive layer is formed of the coating composition of the present invention described above antireflection film Related to.

Hereinafter, this will be described in more detail with reference to the accompanying drawings.

1 is a schematic cross-sectional view of an antireflective film according to an embodiment of the present invention, the antireflective film of the present invention is a substrate 10, a hard coat layer 20 to impart scratch resistance to the upper, antireflection performance It comprises a high refractive index layer 30 and a low refractive index layer 40 to be provided.

Equipment (10)

Although the base material 10 of the antireflection film of the present invention is not particularly limited as long as it has transparency, it is preferable to use a plastic film from the viewpoint of processability. As a material normally used as a base material, For example, Cellulose ester, such as acetyl cellulose, diacetyl cellulose, propionyl cellulose, acetyl propionyl cellulose, nitrocellulose; Or polyethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, poly-1,4-cyclohexane dimethylene terephthalate, polyethylene-1,2-diphenoxyethane-4,4'-dicarboxylate, cyclohexane Polyesters such as dimethylene terephthalate; Polyolefins such as polyethylene, polypropylene, and polymethylpentane; and the like, and polymethyl methacrylate, polyvinyl chloride, polyvinylidene chloride, polyvinyl alcohol, polystyrene, polycarbonate, polyamide, polyether sulfone, polyether Ketones, polysulfones, polyimides, nylons and the like. Among them, acetyl cellulose, polyethylene terephthalate or polycarbonate is more preferable as a substrate of an optical film due to its excellent transparency. In addition, acetyl cellulose can also be used that is sensitized by an alkaline substance.

Hard Coat Layer (20)

In the antireflection film of the present invention, the hard coat layer 20 is positioned under the high refractive layer in order to increase the hardness of the film, and the hard coat layer serves to protect the substrate film and increase the hardness. In general, the hard coat layer may be prepared by using a UV-curable resin, a photopolymerization initiator, a solvent, and a coating composition containing inorganic fine particles, if necessary.

The ultraviolet curable resin used for the hard coat layer is preferably a compound having two or more functional groups. Such compounds include monomers, oligomers, or polymers having unsaturated functional groups capable of polymerization reaction such as methacryloyl group, methacryloyloxy group or functional groups capable of cationic polymerization reaction such as epoxy group in the molecule. It can be used as a composition or by mixing two or more kinds.

The resin preferably contains an ethylene group in the molecule so that crosslinking can be formed upon curing.

In addition, inorganic fine particles may be added to the hard coat layer as necessary to control the refractive index or increase the hardness of the film. As the inorganic fine particles, those having an average particle diameter of 0.5 µm or less are preferable. When the average particle diameter of an inorganic fine particle exceeds 0.5 micrometer, there exists a possibility that the haze of an antireflection film may increase. As the inorganic fine particles, silicon dioxide, titanium dioxide, aluminum oxide, tin oxide, calcium carbonate, barium sulfate, talc, kaolin or calcium lactate particles can be used.

In the present invention, the thickness of the hard coat layer is preferably 0.5 to 15 ㎛. Hardness may not be sufficient when the thickness of the hard coat layer is less than 0.5 μm, and when the thickness is more than 15 μm, curling may easily occur in the film, and transmittance may be low.

The method of coating the hard coat layer is not particularly limited. For example, general wet coating such as roll coating, die coating, bar coating, and spin coating may be used. The coating is dried at 50-130 ° C. with a solvent and UV cured at an energy of 100-700 mJ / cm 2.

High Refractive Layer (30)

The high refractive index layer 30 used for the antireflection film of the present invention can generally be prepared using a coating composition comprising a metal oxide fine particle having a high refractive index and a resin having at least two UV-curable functional groups, a photopolymerization initiator, and a solvent. .

As the metal oxide fine particles, for example, zinc oxide, tin oxide, antimony-containing tin oxide, indium-containing tin oxide, indium oxide, antimony oxide, zirconium oxide, titanium oxide, tungsten oxide, zinc antimonate, vanadium oxide and the like can be used. However, the present invention is not limited thereto and is preferably selected in consideration of dispersibility of particles and ease of adjustment of refractive index.

It is preferable that metal oxide fine particles have an average particle diameter of 0.01-0.5 micrometer. Dispersion is difficult when the average particle diameter is less than 0.01 μm, and haze may increase when the particle size exceeds 0.5 μm.

When the surfaces of these metal oxide fine particles are treated with a coupling agent, the dispersibility of the fine particles is improved and the dispersion stability of the coating liquid for forming the high refractive index is also increased. Examples of coupling agents include isopropyl triisostearoyl titanate, titanium n-butoxide, titanium ethoxide, titanium 2-ethylhexoxide, titanium isobutoxide, titanium stearyloxide, triisopropoxy hepta Desiccated titanium etc. are mentioned.

The UV curable functional group 2 or more resins are the same kind as the resins used for hard coating, and are capable of cationic polymerization reactions such as unsaturated bonds or epoxy groups capable of polymerization reactions such as methacryloyl groups and methacryloyloxy groups in the molecule. It is preferable that it is a monomer, oligomer, or polymer which has a functional group.

The coating method of the coating liquid for forming the high refractive index is not particularly limited, and for example, all of the general wet coating such as roll coating, die coating, bar coating, and spin coating may be used. After coating, the solvent is dried at 50 to 130 ° C. and a coating layer is formed by UV curing at 300 to 1000 mJ / cm 2.

The high refractive index layer may be provided in the form of two layers in the order of the medium refractive layer and the high refractive layer by adjusting the refractive index as necessary. At this time, the refractive index is controlled by the content of the metal oxide fine particles.

Thus, when forming a high refractive layer with the coating liquid for high refractive layer formation, it is preferable that refractive index is 1.6 or more, Preferably it is a value of 1.6-2, and the thickness is 60 nm-600 nm. This is because it is necessary to finely adjust the layer thickness according to the refractive index of the coating film in order to exhibit anti-reflection performance by using the interference of light.

Low Refractive Layer (40)

As the low refractive layer 40 used in the antireflection film of the present invention, a coating liquid composition containing a fluorine-containing compound, a reactive silicone compound, a (meth) acrylate compound, a polymerization initiator, and a solvent represented by Chemical Formula 1 may be used. It characterized in that the manufacturing. It may also include colloidal silica modified by a fluorine-containing silane coupling agent as necessary to improve the scratch resistance and antifouling resistance of the coating film.

The coating solution coating method for forming the low refractive index layer, for example, roll coating, die coating, bar coating, spin coating method, etc. may all be used in general wet coating (wet coating), but is not limited to this, 50 to 130 after coating Dry the solvent at ℃ and form a coating layer by UV curing of 300 ~ 1300 mJ / cm2.

 In addition, the refractive index of the low refractive layer thus formed is 1.3 to 1.5, and the thickness thereof is preferably 60 nm to 600 nm similarly to the high refractive layer. In the case of the low refractive index coating liquid using the fluorine monomer and the oligomer, the refractive index is not less than 1.3, and when the refractive index is more than 1.5, antireflection performance may not be sufficient. On the other hand, if the thickness of the low refractive index layer is less than 60 nm may not exhibit anti-reflection performance, if it exceeds 600 nm, the wavelength of the lowest reflectance may be out of the visible light region.

In the present invention, the refractive index difference between the high refractive index layer and the low refractive layer is preferably 0.05 to 0.7. If the difference between the refractive index of the high refractive index layer and the low refractive index layer is less than 0.05 is not enough anti-reflection performance, if it exceeds 0.7 it may not be easy to implement a sufficient anti-reflection performance by the wet coating method.

The antireflection film formed as described above has a haze of 1% or less, an average reflectance of 3% or less in a visible light region, that is, a wavelength of 380 to 750 nm, and a contact angle with water is 90 degrees or more.

Another aspect of the present invention relates to an image display device manufactured by including the antireflective film.

The image display device including the antireflection film may have a low reflectance and a high transmittance, and have sufficient antifouling properties and durability, and thus may be widely used in PDPs, LCDs, and touch panels.

Hereinafter, the configuration and effects of the present invention will be described in more detail with reference to specific examples and comparative examples, but these examples are only intended to more clearly understand the present invention, and are not intended to limit the scope of the present invention.

Preparation Example (1)-(11): Preparation of the coating liquid for low refractive layer formation.

As the fluorine-containing compound of Formula 1, a compound represented by Rf of Formula 2 to (a) and a compound represented by (e) was used. In addition, as reactive silicone compounds and (meth) acrylate compounds, urethane acrylate oligomers (Ebecryl 5129, manufactured by SK-UCB) were used as shown in Table 1, and each component was methyl ethyl ketone solvent. It dissolved and mixed with and adjusted to 5 weight part of solids with the mixed solvent of methyl ethyl ketone and methyl isobutyl ketone. Igacure 127 (product of Ciba-geigy), a photopolymerization initiator, was added to 5 parts by weight based on the total solids and stirred to dissolve each component completely.

Examples (1) to (6): Preparation of an antireflection film.

1) description

A 100 μm thick PET film (A4300, Toyobo) was used as the substrate.

2) Formation of Hard Coat Layer

30 parts by weight of a urethane acrylate oligomer (Ebecryl 5129, manufactured by SK-UCB) and 20 parts by weight of dipentaerythritol acrylate (A-400, manufactured by Nippon Kayaku), and methyl ethyl ketone and toluene as a solvent. 25 parts by weight of each was used for mixing. As a polymerization initiator, 1 part by weight of Igacure 184 (manufactured by Ciba-geigy) was used based on the total solid content.

After the coating film was formed using the bar coater # 12 bar, the solvent was dried at 80 ° C. for 2 minutes and irradiated with ultraviolet light of 300 mJ / cm 2 to cure the coating film.

3) Formation of High Refractive Layer

Tin oxide fine particles having an average particle diameter of 25 nm were dispersed in an ultraviolet curable resin and ethanol and isopropanol in a tin oxide dispersion (catalyzed) to 8% by weight using isopropanol.

After the coating film was formed using the bar coater # 4 bar, the solvent was evaporated by drying at 80 ° C. for 2 minutes, and the coating film was cured by irradiating UV light at 500 mJ / cm 2.

4) Formation of Low Refractive Layer

The coating solution for forming the low refractive index layer prepared in Preparation Examples 1 to 6 of Table 1 was formed using a bar coater # 4 bar, and then dried at 80 ° C. for 2 minutes to form a coating film by volatilizing a solvent.

Average reflectance, transmittance, haze, and contact angle of the formed coating film were measured, and a steel wool test and an oil pen test were performed, and the results are shown in Table 2 above. In addition, the reflectance spectrum of the antireflection film according to Example 1 is shown in FIG.

 Comparative Example 1-5

In forming the low refractive layer, it was carried out in the same manner as in Examples 1 to 6 except that the coating composition of Preparation Examples 7 to 11 of Table 1, and the results of evaluation of the physical properties of the formed coating film are shown in Table 2 below.

TABLE 1

TABLE 2

<Property evaluation method>

Appearance: The appearance of the antireflection film was visually observed. If no special appearance defects are observed on the coated surface, mark ○. If the scratch marks on the bar remain faint, mark △. If the scratch marks on the bar remain clear or the film surface becomes cloudy, mark ×. It was.

Average reflectance: The reflectance was measured using a UV / VIS / NIR spectrometer (Lambda 950, Perkin-Elmer). The back side of the sample was rubbed with sandpaper and coated with matt paint (CL440F-1999, manufactured by Koryo Paint) to remove the reflected light from the back side of the film. The incident angle was set at 8 ° and the reflectance of the specular light among the reflected light was measured. The reflectance average in the range of 380-780 nm was calculated with respect to the measured reflectance value.

Minimum reflectance: The reflectance was measured using a UV / VIS / NIR spectrometer (Lambda 950, Perkin-Elmer). The back side of the sample was rubbed with sandpaper and coated with matt paint (CL440F-1999, manufactured by Koryo Paint) to remove the reflected light from the back side of the film. The incident angle was set at 8 ° and the reflectance of the specular light among the reflected light was measured. For the measured reflectance values, the lowest of the reflectance values in the range of 550 to 650 nm was recorded.

Haze: Haze and permeability were measured using a Nippon Denshoku Kogyo Co. (manufactured by Nippon Denshoku Kogyo Co.).

Steel wool test: Using a steel wool of # 0000, the coating film was reciprocated 20 times at a load of 200 g to be scratched. It is represented by 1 to 5 depending on the degree of scratch. When the coating film is completely peeled off, it is marked as 1, and when there is no change in the coating film after the test, it is marked as 5.

Oil pen test: The oil pen (monami) was used to contaminate the coating film and then reciprocated five times with a cotton cloth to remove the dirt. When the contamination is completely removed, it is indicated by ○, and when it is possible to remove but traces are indicated by △, it is indicated by × when it is impossible to remove at all.

Contact angle: The contact angle with respect to water was measured using the contact angle measuring device (Phoenix300, SEO).

As can be seen from the description in Table 2, the average reflectance of the antireflective films of Examples 1 to 6 according to the present invention is 3% or less, the haze is 1% or less, and the reflections of Comparative Examples 1 to 5 Compared with the prevention film, it can be seen that excellent antifouling property and high scratch resistance without deterioration of antireflection performance.

As described in detail above, by using the composition for coating the low refractive index layer according to the embodiment of the present invention, it is possible to manufacture an antireflection film having low reflectance and haze, and excellent antifouling and scratch resistance, and an image display device including the same. have.

Claims (10)

(i) two or more different fluorine-containing compounds represented by Formula 1 below; (Ii) reactive silicone compounds; (Iii) a (meth) acrylate compound; (iv) a polymerization initiator; And (v) A composition for antireflection film coating comprising a solvent, comprising 70 to 95 parts by weight of the fluorine-containing compound, 0.1 to 15 parts by weight of the reactive silicone compound and the (meth) acrylate compound based on 100 parts by weight of the total solid content. Anti-reflective film coating composition comprising 1 to 20 parts by weight. [Formula 1]

(In Formula 1, Rf is one selected from the functional groups represented by the following formula (2), R1 is a hydrogen atom or a methyl group.)  [Formula 2]

  In Formula 2, Rf1 is a straight chain perfluoro group having 1 to 10 carbon atoms, and Rf2, Rf3, Rf4 and Rf5 are straight chain perfluoro groups having 1 to 14 carbon atoms. delete The composition of claim 1, wherein the silicone compound is represented by the following Chemical Formula 3 or Chemical Formula 4. [Formula 3]

(In Formula 3, X1, X2, X3 are each hydrogen or methyl group, the same or different species, at least one of R1, R2 is a reactor capable of curing reaction, the same or different species, c is 3 to 1000 Is an integer of) [Formula 4]

(In Formula 4, X1, X2 are each hydrogen or methyl group and the same or different species, at least one of R1, R2 is a reactor capable of curing reaction, the same or different species, c is an integer of 3 to 1000 to be.) delete      The antireflection film coating composition according to claim 1, wherein the reactive silicone compound is 0.2 to 5 parts by weight based on 100 parts by weight of the total solid. delete     The composition for coating an antireflection film according to claim 1, wherein the content of each fluorine-containing compound is 10 parts by weight or more based on 100 parts by weight of the total fluorine-containing compounds. The composition of claim 1, wherein the composition further comprises colloidal silica modified by a fluorine-containing silane coupling agent.        (i) a substrate; (Ii) a hard coat layer; (Iii) a high refractive layer; And (iv) an antireflection film comprising a low refractive layer, wherein the low refractive layer is formed by the composition according to any one of claims 1, 3, 5, 7, and 8. Resistant film. An image display device comprising the antireflective film of claim 9.

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