JP2009116344A - Antiglare film - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an antiglare film which does not exert adverse effect on a screen even when being used for a high-definition display. <P>SOLUTION: A manufacturing method of the antiglare film 10 being a lamination film at least composed of a base film 2 and the antiglare film includes the steps of: applying a coating liquid for antiglare layer onto the one side of the base film 2 to form a coated film, the coating liquid for antiglare layer including transparent particles having an average particle size of 0.5 to 1.5 μm, ionizing radiation curable resin, photopolymerization initiator, leveling agent and solvent, the transparent particles being included in an amount of 20 to 30 pts.wt. for the curable resin 100 pts.wt.; and drying the coated film and, thereafter, curing the dried film by UV irradiation under an oxygen concentration of 1,000 ppm or less. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

The present invention belongs to an anti-glare film installed on the surface of various CRTs and LCDs used for image display such as word processors, computers, and televisions, and particularly displays for high-definition images.

Various displays used in word processors, computers, televisions, etc. are provided with a transparent protective substrate (anti-glare film) with an anti-glare layer made of glass, plastic, etc. on the surface, and the visibility of visual information such as letters and figures Had improved.

Conventional anti-glare film mainly diffuses the light from the inside to prevent glare on the image surface, which is seen when the light emitted from the inside passes without being diffused on the surface of the display. For this purpose, an anti-glare treatment has been provided on the surface of the display. This anti-glare treatment is performed by applying a coating liquid in which fine particles such as silica and resin beads are dispersed in a binder to the surface of the display, or by sticking the coated film to the surface of the display. It was.

A film in which an antiglare layer comprising a resin composition containing fine particles such as amorphous silica is provided on a transparent film, in which fine particles are contained before obtaining sufficient antiglare properties, the transparency is impaired, and the haze value The value indicating (diffuse transmittance / total light transmittance) is increased, not only optical properties such as resolution, contrast or transparency are lowered, but also physical properties such as scratch resistance are lowered. .

In order to prevent these drawbacks, a technique such as a polarizing plate having an antiglare function (see Japanese Patent Publication No. 63-40282) for forming a cured film layer from a composition containing an aggregating silica gel in an ultraviolet curable polyester acrylate resin. Is also disclosed. However, those composed of cohesive silica gel and UV curable polyester acrylate have a hardness that has the effect of improving the scratch resistance, but are not satisfactory in antiglare effect. In addition, the anti-glare film provided with the anti-glare layer using large particles, which has been used in the past, flickers the screen and reduces the resolution when used for high-definition television and displays with many pixels. However, there is a problem that the image becomes unclear.
Japanese Patent Publication No. 63-40282

These antiglare films are films provided with an antiglare layer containing fine particles such as silica and resin beads in order to diffuse the light to some extent in order to prevent glare when the light from the inside is visually observed on the surface. It was used. However, the antiglare film provided with the antiglare layer containing these fine particles has a problem that the screen flickers or the image becomes unclear when used for a high-definition television or a display having a large number of pixels. . An object of the present invention is to provide an antiglare film that does not adversely affect the screen even when used in a high definition display.

In order to solve the above problems, the present invention is a method for producing an antiglare film that is at least a laminated film of a base film and an antiglare layer, and has an average particle diameter of 0.5 to 1.5 μm. An antiglare layer coating solution containing particles, an ionizing radiation curable resin, a photopolymerization initiator, a leveling agent, and a solvent, wherein the transparent particles include 20 to 30 parts by weight with respect to 100 parts by weight of the curable resin. It is characterized by having a step of coating on one side of a substrate film to form a coating film, and a step of drying the coating film and then curing it by ultraviolet irradiation under an oxygen concentration of 1000 ppm or less. It is a manufacturing method of an anti-glare film.
Further, the present invention is a method for producing an antiglare film for a high-definition display that is a laminated film of at least a base film and an antiglare layer, wherein the transparent particles have an average particle size of 0.5 to 1.5 μm, An antiglare layer coating solution containing an ionizing radiation curable resin, a photopolymerization initiator, a leveling agent and a solvent, and containing 20 to 30 parts by weight of the transparent particles with respect to 100 parts by weight of the ionizing radiation curable resin. The step of coating on one side of the base film and forming a coating film, after drying the coating film, curing it by ultraviolet irradiation under an oxygen concentration of 1000 ppm or less to form an antiglare layer, Using the image sharpness measuring apparatus defined in JIS K7105-1981, optical combs having widths of 2 mm, 1 mm, 0.5 mm, and 0.125 mm are prepared for the manufacturing process and the manufactured laminated film. The four types of image definition and the 60-degree glossiness of the antiglare layer were evaluated, and the sum of the four types of image definition was 200% or more and the image definition corresponding to a width of 0.125 mm. And a high-definition display characterized by having an evaluation step for making the laminated film having a 60 degree glossiness of less than 90% compatible with a high-definition display. It is a manufacturing method of the anti-glare film. In the above evaluation process, the laminated film is attached to the surface of a display with an image pitch of 180 μm to further evaluate visual flickering, and the laminated film in which no flickering of the image is observed can be applied to a high-definition display. It is a manufacturing method of the anti-glare film for high-definition displays which has a property.

As shown in FIG. 1, the antiglare film 10 of the present invention comprises at least a base film 2 and transparent particles having an average particle size of 0.5 to 1.5 μm in an amount of 20 to 30 wt. It is the anti-glare film 10 which consists of a laminated | multilayer film with the anti-glare layer 1 containing a part. Further, the antiglare film has a sum of “image sharpness measured with four types of optical combs” defined in JIS K7105 of 200% or more and a 60 ° glossiness of the antiglare layer is less than 90%. And the curable resin of the said glare-proof layer is the glare-proof film hardened | cured by irradiation of ionizing radiation under the oxygen concentration which is less than 1000 ppm.

The base film used in the present invention is selected from materials that are more transparent than ordinary plastics, depending on the strength, post-treatment and post-processing required for the anti-glare film. For example, stretching made of polyethylene terephthalate, polybutylene terephthalate, polyamide (nylon 6, nylon 66), triacetyl cellulose, polystyrene, polyarylate, polycarbonate, polyvinyl chloride, polymethylpentene, polyethersulfone, polymethyl methacrylate, etc. Or it is an unstretched film. Moreover, these films can also be used as a single layer or a multilayer film of two or more layers. The thickness of the base film is preferably 10 to 100 μm, which does not affect the suitability for post-processing. When the thickness is 100 μm or more, it is not only a waste of resources but may be difficult to operate during processing.

Transparent particles having an antiglare property can be 0.5 to 1.5 μm of silica and aluminum hydroxide fine particles, and other resin beads such as polycarbonate, polystyrene, acrylate ester / styrene copolymer, etc. A 10-micrometer thing can also be added in order to give the lubricity of an anti-glare layer. In addition, transparent particles having a particle size of 0.5 μm or less cannot give the necessary antiglare property, and those having a particle size of 1.5 μm or more may cause flickering on a high-definition display image. .

The antiglare film of the present invention is measured through an optical comb having a width of 2 mm, 1 mm, 0.5 mm and 0.125 mm using an image sharpness measuring apparatus described in JIS K7105-1981, and a high-definition image. Evaluate image sharpness at 0.125mm width corresponding to (high definition display pixel pitch of 180μm or less) and image sharpness at each width, and calculate the sum of them to show compatibility with high definition display evaluate. For transparent particles having an antiglare property and having a transparent particle diameter of 0.5 to 1.5 μm, the image sharpness corresponding to a comb width of 0.125 mm is 50% or more, whereas the average particle diameter is Large ones do not reach 10%.

The curable resin that binds the transparent particles is a resin that can be cured by ionizing radiation as well as thermal curing. The ionizing radiation curable resin in the present invention refers to a composition in which a reactive prepolymer, oligomer, and / or monomer having a polymerizable unsaturated bond or an epoxy group in the molecule is appropriately mixed. And if necessary, a thermoplastic resin such as urethane, polyester, acrylic, butyral or vinyl is used in combination.

These prepolymers and oligomers are polyfunctional urethane acrylates and urethane methacrylates (hereinafter, acrylates and / or methacrylates are described as (meth) acrylates). Examples include alkyl (meth) acrylate, polyester (meth) acrylate, epoxy (meth) acrylate, and siloxane. Prepolymers and oligomers include unsaturated polyesters that are condensates of unsaturated dicarboxylic acids and polyhydric alcohols.

Monomers include vinylbenzene monomers such as styrene and α-methylstyrene, methyl (meth) acrylate, ethyl (meth) acrylate, butyl (meth) acrylate, 2 ethylhexyl (meth) acrylate, methoxyethyl (meth) acrylate, Examples include butoxyethyl (meth) acrylate and phenyl (meth) acrylate.

Unsaturated carboxylic acid amide of (meth) acrylamide, ethylene glycol di (meth) acrylate, propylene glycol di (meth) acrylate, neopentyl glycol di (meth) acrylate, 1,6-hexanediol di (meth) acrylate, triethylene There are esters of unsaturated carboxylic acids such as glycol di (meth) acrylate and glycols.

There are polyfunctional compounds such as dipropylene glycol di (meth) acrylate, ethylene glycol di (meth) acrylate, propylene glycol di (meth) acrylate, and pentaerythritol tri (meth) acrylate. There are polythiol compounds having two or more thiol groups in a molecule such as trimethylolpropane trithioglycolate, trimethylolpropane trithiopropylate, and pentaerythritol tetrathioglycolate.

The above compounds are used alone or in combination of two or more as required. In order to give the resin composition normal processing suitability, the prepolymer or oligomer is added in an amount of 5% by weight or more, and the monomer. And / or polythiol is preferably 95% by weight or less.

When the flexibility of the cured product is required, the monomer is reduced as long as the processability is not hindered, and a monofunctional or bifunctional acrylate monomer is used. To do.
In addition, when the cured product requires heat resistance, hardness, and solvent resistance, the amount of monomer is increased within a range that does not hinder processing suitability, or a trifunctional or higher (meth) acrylate-based monomer It is preferable to use a body to obtain a structure with a high crosslinking density. That is, the suitability for processing and the physical properties of the cured product are adjusted by appropriately blending a 1,2 functional monomer and a trifunctional monomer.

Examples of the monofunctional monomer include 2-ethylhexyl acrylate, 2-hydroxyhexyl acrylate, and phenoxyethyl acrylate. Bifunctional acrylate monomers include ethylene glycol di (meth) acrylate and 1,6-hexanediol diacrylate. Trifunctional and higher acrylate monomers include trimethylolpropane tri (meth) acrylate and penta Examples include erythritol tri (meth) acrylate, dipentaerythritol penta (meth) acrylate, and dipentaerythritol hexa (meth) acrylate.

In order to adjust the physical properties such as flexibility and surface hardness of the cured product, at least one kind of the prepolymer or oligomer monomer is a resin and / or a thermoplastic resin that is not cured by ionizing radiation. 70 wt%, preferably 5 to 50 wt% can be blended.

Resins that do not cure with ionizing radiation include polyurethane, cellulose derivatives, polyester, acrylic resin, polyvinyl butyral, polyvinyl chloride, polyvinyl acetate, polycarbonate, polyamide, etc. Derivatives, polyesters and polyvinyl butyral are preferred.

When the ionizing radiation curable resin is cured with ultraviolet rays, a photopolymerization initiator is added to the ionizing radiation curable resin composition. Photopolymerization initiators include acetophenones, benzophenones, Michler benzoyl benzoate, aldoxime, tetramethylmeurum monosulfide, thioxanthone and / or photosensitizers n-butylamine, triethylamine, tri-n-butylphosphine Etc. can be mixed and used. Then, photoinitiator that generates free radicals using ultraviolet rays or visible light having a wavelength of 180 nm or more, photopolymerizable monomer or photopolymerizable oligomer, or photopolymerization that generates free radicals with an electron beam of 100 KeV to 10 ⁶ KeV energy. And a photopolymerizable oligomer.

Photoinitiators that generate free radicals using ultraviolet light or visible light having a wavelength of 180 nm or more include benzoisobutyl ether, benzyldimethyl ketal, diethoxyacetophenone, acyloxime ester, chlorinated acetophenone, hydroxyacetophenone, acyl phosphine oxide, glycine. Intramolecular bond cleavage type radical polymerization initiators such as oxyesters and cyclic benzyl, intermolecular hydrogen abstraction type such as benzophenone, Michler's ketone, dibenzosuberone, 2-ethylanthraquinone, isobutylthioxanthone, benzyl, 3-ketomacrine Radical polymerization initiators, camphorquinone, anthraquinone, α-naphthyl, acenaphthene, p, p′-dimethoxybenzyl, p, p′-dichlorobenzyl, and the like for dicarbonyl-based visible light curing Cal polymerization initiator, 2-chlorothioxanthone, 2-methylthioxanthone, 2,4-dimethylthioxanthone, thioxanthone-based radical polymerization initiator for visible light curing such as 2,4-diethyloxanthone, 2,4 , 6-Trimethylbenzoyldiphenyl phosphine oxide (TMDPO), 2,6-dimethylbenzoyl phosphine oxide and other acyl phosphine oxide-based radical polymerization initiators for visible light curable, Cancure PDO, Eosin Y, etc. for visible light curable Examples include radical polymerization initiators. Also, water-soluble photoinitiators such as 4- (2-hydroxyethoxy) phenyl- (2-hydroxy-2-propyl) ketone, and copolymerizability such as α-allylbenzoin, α-allylbenzoin aryl ether, and benzophenone derivatives. A photoinitiator is mentioned.

As aliphatic polyfunctional acrylates, alkyl types such as 1,4 butanediol diacrylate, neopentyl glycol diacrylate, 1,6 hexanediol diacrylate, diethylene glycol diacrylate, triethylene glycol diacrylate, polyethylene glycol 400 diacrylate, tri Alkylene glycol type such as propylene glycol diacrylate, ester type such as hydroxypivalate ester, neopentyl glycol diacrylate, trimethylolpropane type such as trimethylolpropane triacrylate, ethoxylated trimethylolpropane tetraacrylate, pentaerythritol triacrylate, Pentaerythritol type such as dipentaerythritol hexaacrylate, tris Acryloxyethyl) isocyanurate such as the isocyanurate, dicyclopentanyl acrylate, alicyclic type, such as ethoxylated hydrogenated bisphenol A diacrylate.

Examples of the aromatic monofunctional acrylate include phenyl type such as phenyl acrylate, benzyl type such as benzyl acrylate, and phenoxy type such as phenoxydiethylene glycol acrylate and nonylphenoxy polyethylene glycol acrylate. Aromatic polyfunctional acrylates include bisphenol A types such as ethoxylated bisphenol A diacrylate, ethoxylated bisphenol F diacrylate, and ethoxylated bisphenol S diacrylate.

The acrylate containing OH group is alcohol type such as 2-hydroxyethyl acrylate, 2-hydroxyethyl methacrylate, 2-hydroxypropyl acrylate, hydroxydiethylene glycol methacrylate, ptoxyhydroxypropyl acrylate, phenoxyhydroxypropyl acrylate, hydroxypropyl dimethacrylate, diethylene glycol Epoxy type such as bis (hydroxypropyl acrylate), propoxylated bisphenol A bis (hydroxyfluoropyracrylate), trimethylolpropane type such as hydroxypropylated trimethylolpropane triacrylate, pentaerythritol type such as monohydroxypentaerythritol triacrylate and so on. An allyl group-containing acrylate includes allyl acrylate.

The ratio of the photoinitiator, photopolymerizable monomer or photopolymerizable oligomer that generates free radicals using ultraviolet light or visible light can be set by the intensity of ultraviolet light and visible light, temperature, and humidity. In general, the ratio of the photopolymerizable monomer or photopolymerizable oligomer to the photoinitiator is preferably 1 to 20 parts by weight with respect to 100 parts by weight of the resin component.

The ionizing radiation curable resin used in the present invention is a photopolymerizable monomer or photopolymerizable oligomer that generates free radicals by an electron beam having an energy of 100 KeV to 10 ⁶ KeV.

The photopolymerizable monomer or photopolymerizable oligomer used in the electron beam curable resin composition is the photopolymerizable monomer or photopolymerizable oligomer that generates free radicals using ultraviolet rays and visible light. The ionizing radiation means an electromagnetic wave or charged particle having an energy quantum capable of polymerizing / crosslinking molecules. Usually, ultraviolet rays or electron beams are used.

The ionizing radiation curable resin can be cured by a normal method of curing an ionizing radiation curable resin composition. For example, in the case of electron beam curing, the energy released from various electron beam accelerators such as the Cochro-Fruthalton type, the bandegraph type, the dynamitron type, the resonant transformation type, the insulated core transformer type, the linear type, and the high frequency type is used as the substance. Giving rise to chemical reaction by generating excitation and ionization of molecules. Although an electron beam with an acceleration voltage of 50 to 3000 KeV is used, it is preferably 150 to 300 KeV.

It is preferable to use a leveling agent in the coating liquid for providing the antiglare layer in order to constitute surface leveling. In the case of a composition that contains a solvent in the coated state and is cured by ionizing radiation after coating and drying, leveling can be improved by the action of the solvent that dissolves the binder. However, when the ionizing radiation curable resin is cured, it is advantageous for curing to add a leveling agent such as fluorine or silicone to the coating solution. In particular, when triacetyl cellulose having excellent optical properties is used as a base film, the film has no heat resistance, and therefore the irradiation intensity of ultraviolet rays cannot be increased. . The coating liquid made of ionizing radiation curable resin containing the above leveling agent is a fluorine-based or silicone-based leveling agent that segregates on the coating film surface, that is, the air interface during coating / drying, to prevent curing inhibition by oxygen. In addition, it has an effect of scratch resistance as a lubricant.

It is preferable to contain an antistatic agent for the purpose of preventing dust from adhering to the antiglare layer. There are various types of interfacial slip agents as materials having antistatic properties, but these are precipitated on the surface and exert their effects, and a durable antistatic effect cannot be expected. Usually, conductive materials selected from powders and flakes of various metals such as silver, copper and nickel, carbon black and tin oxide, acrylic acid esters having quaternary ammonium bases, (meth) acrylic acid esters and A composition containing a cross-linked antistatic agent containing a copolymer consisting of is used. In particular, tin oxide has good transparency, and when a particle size of 0.05 to 0.1 μm is used, an increase in the haze value of the antiglare layer can be minimized.

The antiglare layer of the present invention is formed by applying and curing a coating solution prepared by dissolving a resin composition selected from the above resins in a solvent as necessary to adjust the viscosity. The coating is performed by a method such as normal reverse roll coating, roll coating, Miya bar coating, gravure coating, etc., and the coating / solvent is dried at 3 to 15 g / m ² (in terms of solid content, hereinafter the same). Furthermore, a curing reaction is performed by electromagnetic waves such as electron beams, ultraviolet rays, and visible rays. Curing with ultraviolet rays can use electromagnetic waves emitted from ultra-high pressure mercury lamps, high pressure mercury lamps, carbon arcs, xenon arcs, metal halide lamps, and the like.

These curing reactions by ionizing radiation are preferably performed in an atmosphere with as little oxygen as possible. Under a low oxygen atmosphere, the curing reaction can be completed without any inhibition of curing by oxygen or coloring or decomposition due to side reactions other than the desired polymerization reaction. Therefore, the antiglare layer can maintain the wearability excellent in the retention ability of the added particles. On the other hand, when the oxygen concentration is high, the curing reaction is not completed, and the antiglare layer is inferior in wear and particles may fall off. A preferable oxygen concentration is 1000 ppm or less.

In order to make the adhesion between the base film and the antiglare layer strong and stable, the coated surface of the base film is subjected to a surface treatment with corona discharge or ozone gas, or both the base film and the antiglare layer. It is preferable to provide a primer layer made of a material having an affinity for the above and having strong adhesiveness. The primer layer can be formed by applying 0.5 to ² g / m ^{2 of a} reactive varnish composed of polyester polyol or polyether polyol and polyisocyanate.

The present invention provides an antiglare film in which a base film is provided with an antiglare layer containing 20 to 30 parts by weight of transparent particles having an average particle size of 0.5 to 1.5 μm with respect to 100 parts by weight of a curable resin. The image sharpness measured with a comb width of 0.125 mm is 50% or more, and the sum of the image sharpness measured with the four types of optical combs is 200% or more. And the effect which comprises the film which can respond | correspond to the high-definition display with a glare of 60% or less and an anti-glare property is show | played. Further, the antiglare layer obtained by reacting the curable resin under low oxygen is superior in wear resistance and durability as compared with the antiglare layer reacted in the atmosphere.

Example 1
As the base film 2 shown in FIG. 1, an “antiglare layer coating solution” having the following composition is applied at 5 g / m ² on one side of a triacetyl cellulose film having a thickness of 80 μm, and the solvent is evaporated. After drying, the antiglare layer of Example 1 was formed by irradiating twice at a rate of 10 m / min with an ultraviolet irradiation device of 80 W / cm while maintaining the oxygen concentration at 0.1% or less to form a cured antiglare layer 1. Film 10 was created.
"Anti-glare coating liquid"
Pentaerythritol triacrylate 50 parts by weight Irgacure 184 (photopolymerization initiator) 2 parts by weight Silicone (leveling agent) 1 part by weight Silica (average particle size 1 μm) 12 parts by weight Toluene 34 parts by weight

(Comparative Example 1)
The antiglare layer 10 of Comparative Example 1 was prepared by curing the antiglare layer in the same process as in the Example except that the amount of silica mixed was 18 parts.

(Comparative Example 2)
The antiglare film 10 of Comparative Example 2 was prepared by curing the antiglare layer in the same process as in the Example except that the average particle diameter of silica was 2.5 μm and the mixing amount was 4 parts.

(Comparative Example 3)
The antiglare layer 10 of Comparative Example 3 was prepared by curing the antiglare layer in the same steps as in Example 1 except that the antiglare layer was cured in the air with the same coating solution as in Example 1. did.

About the sample of an Example and a comparative example, the following item was evaluated.
(1) Image Sharpness According to the image sharpness evaluation method described in JIS K7105-1981, using “Image Sharpness Measuring Device ICM-IDP” manufactured by Suga Test Instruments Co., Ltd., 2 mm, 1 mm, 0 Image clarity was measured through optical combs having widths of .5 mm and 0.125 mm, and image clarity at 0.125 mm width corresponding to high-definition images and image clarity at each width were evaluated.
(2) Gloss According to the glossiness measurement method described in JIS K7105-1981, the glossiness at 60 degrees was measured by “Glossmeter GM-3D” manufactured by Murakami Color Research Laboratory.
(3) Affixed to a display having an image with a pixel pitch of 180 μm, which is a flickering high-definition image, and the state of the image was visually evaluated.
Evaluation criteria O: Good without flickering x: Flickering in image (4) Antireflection effect The surface of the antiglare layer was irradiated with a 40 W fluorescent lamp, and the degree of reflection was visually evaluated.
Evaluation criteria ○: Reflection of fluorescent lamp is suppressed and good x: Reflection of fluorescent lamp is remarkable (5) Wear test The surface of the antiglare layer was reciprocated 10 times with a sand eraser, and the falling state of the added particles was visually evaluated.
Evaluation criteria ○: Good with no change in surface gloss ×: Significant dropout of particles

The present invention provides an antiglare film in which a base film is provided with an antiglare layer containing 20 to 30 parts by weight of transparent particles having an average particle size of 0.5 to 1.5 μm with respect to 100 parts by weight of a curable resin. The image sharpness measured with a comb width of 0.125 mm is 50% or more, and the sum of the image sharpness measured with the four types of optical combs is 200% or more. And the effect which comprises the film which can respond | correspond to the high-definition display with a glare of 60% or less and an anti-glare property is show | played. Further, the antiglare layer obtained by reacting the curable resin under low oxygen is superior in wear resistance and durability as compared with the antiglare layer reacted in the atmosphere.

It is a section schematic diagram showing the concept of the anti-glare film of the present invention.

Explanation of symbols

1 Antiglare layer 2 Base film 10 Antiglare film

Claims (3)

At least a method for producing an antiglare film that is a laminated film of a base film and an antiglare layer,
It contains transparent particles having an average particle size of 0.5 to 1.5 μm, an ionizing radiation curable resin, a photopolymerization initiator, a leveling agent, and a solvent, and the transparent particles are added to 20 parts by weight of the ionizing radiation curable resin. Coating the antiglare layer coating solution containing -30 parts by weight on one side of the substrate film, and forming a coating film; and
A method for producing an antiglare film, comprising drying the coating film, followed by curing with ultraviolet irradiation under an oxygen concentration of 1000 ppm or less. A method for producing an antiglare film for a high-definition display that is a laminated film of at least a base film and an antiglare layer,
It contains transparent particles having an average particle size of 0.5 to 1.5 μm, an ionizing radiation curable resin, a photopolymerization initiator, a leveling agent, and a solvent, and the transparent particles are added to 20 parts by weight of the ionizing radiation curable resin. A step of applying a coating solution for an antiglare layer containing -30 parts by weight on one side of the base film to form a coating film;
After the coating film is dried, a step of forming an antiglare layer by curing with ultraviolet irradiation under an oxygen concentration of 1000 ppm or less to produce a laminated film, and
Using the image sharpness measuring apparatus defined in JIS K7105-1981, the produced laminated film was subjected to four types of image sharpness through optical combs having widths of 2 mm, 1 mm, 0.5 mm and 0.125 mm, and 60 degree glossiness of the glare layer is evaluated, the sum of the four types of image definition is 200% or more, and the image definition corresponding to a width of 0.125 mm is 50% or more, and the 60 degree A method for producing an anti-glare film for a high-definition display, comprising an evaluation step in which a laminated film having a glossiness of less than 90% has compatibility with a high-definition display. In the evaluation step, the laminated film is attached to the surface of a display with an image pitch of 180 μm, and further flicker evaluation of the image is performed by visual observation, and the laminated film in which no flickering of the image is recognized has compatibility with a high definition display. The method for producing an antiglare film for a high-definition display according to claim 2, wherein the antiglare film is used.

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