JP2009204728A - Antiglare laminate and display equipped with the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an antiglare laminate which can decrease optical defect as far as possible, can suppress a haze value and can exhibit excellent visibility, and to provide a display equipped with the same. <P>SOLUTION: The antiglare laminate 10 is made by laminating an antiglare hard coat layer 12 on a transparent base material film 11. The antiglare hard coat layer 12 is formed by irradiating a composition with light and curing it, the composition comprising: a binder which contains an active energy ray curable resin and a photopolymerization initiator; a translucent organic particulate which is composed of (meth)acrylic resin or its crosslinked material; an inorganic nano particulate the surface of which is modified by a silane coupling agent having a (meth)acryloyloxy group and which has refractive index difference of 0 to 0.1 between a cured binder and itself; and a surface conditioner which is composed of modified polysiloxane or (meth)acrylic polymer. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an antiglare laminate that is used by being attached to the outermost surface on the observation side of various displays, for example, and particularly to an antiglare laminate having a small number of optical defects and a display including the same.

  In an electronic image display device such as a plasma display (PD), a liquid crystal display (LCD), or a cathode ray tube display (CRT), reflection of light emitted from an external light source such as a fluorescent lamp is reflected in order to improve the visibility. Less is required. Therefore, an anti-glare film or the like is disposed on the display surface in order to reduce reflection of light from the outside.

  As this type of conventional antiglare antireflection film, for example, an antiglare layer and an antireflection layer are sequentially laminated on a transparent substrate, and the antiglare layer has inorganic fine particles having an average particle diameter of 0.001 to 0.2 μm, What contains the microparticles | fine-particles of average particle diameter of 0.5-10 micrometers and active energy ray hardening-type resin is known (for example, refer patent document 1). In this antiglare antireflection film, the adhesion between the antiglare layer and the antireflection layer is good and the durability is excellent.

  Further, as an antiglare film, a transparent base film and an antiglare layer containing translucent fine particles in a translucent resin are laminated, and the translucent fine particles are different in refractive index from the translucent resin. Has a value of 0.3 or less and protrudes from the surface of the antiglare layer by 0.1 to 0.3 μm (for example, see Patent Document 2). According to this antiglare film, it is possible to improve the transmission clearness, reduce scintillation (glare), and provide antireflection properties without reducing diffusion and antiglare properties.

Further, an antiglare film having an antiglare layer containing two kinds of fine particles and a resin is known (see, for example, Patent Document 3). That is, the first fine particles are organic fine particles having an average diameter of 1 to 7 μm, the amount thereof is 5 to 40% by weight with respect to the resin, and the second fine particles are inorganic fine particles having an average diameter of 0.1 μm or less. The amount thereof is 10% by weight or less based on the resin, and the thickness of the antiglare layer is 0.8 to 3 times the average diameter of the first fine particles. This antiglare film is excellent in transparency and antiglare properties, improves the visibility of the display, and is excellent in scratch resistance.
Japanese Patent Application Laid-Open No. 2007-183674 (Page 2, Page 5 and Page 6) JP 2000-121809 (page 2, page 6 and page 7) JP 2004-25650 A (pages 2 and 5)

  However, in the antiglare film (antiglare laminate) described in Patent Documents 1 to 3, since the compatibility (compatibility) between the fine particles and the resin forming the antiglare layer is poor, The dispersibility of the fine particles is poor and the fine particles tend to aggregate. Therefore, these anti-glare films have a problem that optical defects occur due to aggregation of fine particles. Further, in the antiglare film (antiglare laminate) described in Patent Document 3, since the refractive index difference between the inorganic fine particles and the binder is not defined, the haze value is increased to, for example, about 40%. There has been a problem that visibility has deteriorated.

  Accordingly, an object of the present invention is to provide an antiglare laminate capable of reducing optical defects as much as possible, suppressing a haze value, and exhibiting excellent visibility, and the same It is providing the display provided with.

  The antiglare laminate of the first invention in the present invention is an antiglare laminate in which an antiglare hard coat layer is laminated on a transparent substrate film, and the antiglare hard coat layer has an active energy. The surface is modified by a binder containing a linear curable resin and a photopolymerization initiator, translucent organic fine particles, and a silane coupling agent having a (meth) acryloyloxy group, and the refractive index difference from the cured binder is 0. It is formed by curing a composition for forming an antiglare hard coat layer containing inorganic nanoparticles of ~ 0.1 and a surface conditioner comprising a modified polysiloxane or a (meth) acrylic polymer. It is characterized by that.

  In the antiglare laminate of the second invention, in the first invention, the translucent organic fine particles have an average particle diameter of 1 to 20 μm, and a refractive index difference from a cured product of the binder of 0 to 0.05. In addition, the inorganic nanoparticles are characterized by having an average particle diameter of 1 to 100 nm.

  In the antiglare laminate of the third invention, in the first or second invention, the translucent organic fine particles are a (meth) acrylic resin or a cross-linked product thereof, and the inorganic nano fine particles are silica fine particles. It is characterized by.

  The antiglare laminate of the fourth invention is the invention according to any one of the first to third aspects, wherein the reflectance in the visible light region at 5 ° regular reflection on the antiglare hard coat layer. Further, the present invention is characterized by further stacking a reduced reflection layer formed so that the minimum reflectance wavelength at which the minimum value is in the range of 450 to 560 nm.

  The display of 5th invention is equipped with the anti-glare laminated body of the invention of any one of 1st to 4th in the outermost surface at the side which displays an image, It is characterized by the above-mentioned.

According to the present invention, the following effects can be exhibited.
In the anti-glare laminate of the first invention, the anti-glare hard coat layer forming composition for forming the anti-glare hard coat layer has a surface with a silane coupling agent having a (meth) acryloyloxy group. A modified inorganic nanoparticle is included, and a surface conditioner made of a modified polysiloxane or (meth) acrylic polymer is included. For this reason, the modified inorganic nanoparticles have improved compatibility with the surface conditioner and the binder, can suppress the formation of optical defects, and the unevenness of the surface of the antiglare hard coat layer is uniform and sufficient. Can be formed. Further, the modified inorganic nanoparticles have a refractive index difference of 0 to 0.1 with respect to the cured binder. Therefore, the light transmittance in the antiglare hard coat layer is not deteriorated. Therefore, the antiglare laminate can reduce optical defects as much as possible, suppress the haze value, and exhibit excellent visibility.

  In the antiglare laminate of the second invention, the translucent organic fine particles have an average particle size of 1 to 20 μm, a refractive index difference from the cured binder is 0 to 0.05, and inorganic nano fine particles. Has an average particle diameter of 1 to 100 nm. For this reason, in addition to the effects of the first invention, the unevenness of the surface of the antiglare hard coat layer can be made moderate, light scattering inside the antiglare hard coat layer can be suppressed, and light transmission can be achieved. Can be improved.

  In the antiglare laminate of the third invention, the translucent organic fine particles are (meth) acrylic resin or a cross-linked product thereof, and the inorganic nano fine particles are silica fine particles. For this reason, in addition to the effects of the first or second invention, the refractive index can be easily adjusted, and the anti-glare property can be easily adjusted by effectively suppressing the sedimentation of the translucent organic fine particles. it can.

  In the antiglare laminate of the fourth invention, on the antiglare hard coat layer, the minimum reflectance wavelength at which the reflectance in the visible light region at 5 ° regular reflection is the minimum is in the range of 450 to 560 nm. The antireflection layer thus formed is further laminated. Therefore, in addition to the effects of any one of the first to third inventions, reflection on the surface of the antiglare laminate is suppressed, and the reflection color is controlled. The blackness in the black display image is even better.

  In the display of the fifth invention, the antiglare laminate is provided on the outermost surface on the image display side. Therefore, the display can exhibit the above-described effects of the antiglare laminate, has excellent display image transparency, good image clarity, and can improve the blackness of black display images. .

Hereinafter, embodiments that are considered to be the best modes of the present invention will be described in detail.
[Anti-glare laminate]
As shown in FIG. 1, the antiglare laminate (antiglare film or antiglare sheet) 10 of this embodiment is obtained by laminating an antiglare hard coat layer 12 on a transparent substrate film 11. . The antiglare hard coat layer 12 includes a binder containing an active energy ray-curable resin and a photopolymerization initiator, translucent organic fine particles, modified inorganic nanoparticles, and modified polysiloxane or (meth) acrylic. And a surface conditioner made of a polymer. The modified inorganic nanoparticles (hereinafter also referred to as modified inorganic nanoparticles) are modified on the surface by a silane coupling agent having a (meth) acryloyloxy group, and the refractive index difference from the cured binder is 0 to 0. It is formed in 0.1. By using this antiglare laminate 10, optical defects (hereinafter, also simply referred to as defects) can be reduced as much as possible, haze value can be suppressed, and visibility can be improved. In an electronic image display device such as a display, the image visibility can be enhanced.

  As shown in FIG. 2, the antiglare laminate 10 is configured by further laminating an anti-reflection layer 13 on an antiglare hard coat layer 12 laminated on a transparent substrate film 11. This anti-glare laminate 10 is suppressed in reflection on the surface by the antireflection layer 13 and is excellent in image sharpness.

Next, each component which comprises the anti-glare laminated body 10 is demonstrated in order.
[Transparent substrate film 11]
The transparent substrate film 11 is a substrate (base material) of the antiglare laminate 10, and a transparent resin film or the like is used and is not particularly limited. Specifically, as a resin material for forming the transparent substrate film 11, a poly (meth) acrylic resin, a poly (meth) acrylonitrile resin, a triacetate cellulose (TAC) resin, a polyethylene terephthalate (PET) resin, Examples include polyurethane resins, regenerated cellulose resins, polycarbonate resins, polyamide (nylon) resins, and polyimide resins. Among them, triacetate cellulose (TAC) resin and polyethylene terephthalate (PET) resin are preferable from the viewpoint of versatility. When providing a polarizing layer as a functional layer on the transparent substrate film 11, a triacetate cellulose (TAC) resin is usually used.

The thickness of the transparent substrate film 11 is usually 10 to 5000 μm, preferably 25 to 1000 μm, and more preferably 35 to 500 μm. When this thickness is thinner than 10 μm, workability is deteriorated and the strength of the transparent substrate film 11 tends to be lowered. On the other hand, if the thickness is greater than 5000 μm, the thickness becomes unnecessarily thick and the handleability deteriorates, which is not preferable.
[Anti-glare hard coat layer 12]
Next, the antiglare hard coat layer 12 will be described. The antiglare hard coat layer 12 has irregularities on its surface, and light is reflected and diffused on the irregularities (surface diffusibility), and has a function capable of exhibiting antiglare properties. As described above, the antiglare hard coat layer 12 cures the antiglare hard coat layer forming composition containing the binder, the translucent organic fine particles, the modified inorganic nanoparticles, and the surface conditioner. Is formed.
(binder)
The binder of this antiglare hard coat layer forming composition contains an active energy ray-curable resin and a photopolymerization initiator. Moreover, a diluent solvent is normally mix | blended in the composition for binder or anti-glare hard-coat layer formation.

  The active energy ray-curable resin requires an active energy ray-curable polymerizable component as a constituent component, and may contain other components as necessary. Examples of such polymerizable components include monofunctional monomers, polyfunctional monomers, oligomers having vinyl groups and (meth) acryloyl groups, and polymers having vinyl groups and (meth) acryloyl groups. Or 2 or more types are selected and used. Other components include photodegradable or thermal decomposable polymerization initiators, oligomers that do not contain vinyl groups or (meth) acryloyl groups (hereinafter referred to as non-polymerizable oligomers), vinyl groups or (meth) acryloyl groups. Polymers (hereinafter referred to as non-polymerizable polymers), metal oxides, diluent solvents, photosensitizers, stabilizers, ultraviolet absorbers, infrared absorbers, antioxidants and the like are used.

  Specific examples of the monofunctional monomer include isopropyl (meth) acrylate, n-butyl (meth) acrylate, lauryl (meth) acrylate, cetyl (meth) acrylate, cyclohexyl (meth) acrylate, (meth ) (Meth) acrylic acid esters such as benzyl acrylate, dicyclopentenyloxyethyl (meth) acrylate, phenoxyethyl (meth) acrylate, methoxydiethylene glycol (meth) acrylate, methoxypolyethylene glycol (meth) acrylate, Styrene, m-methoxystyrene, di-n-butyl fumarate, diethyl fumarate, diethyl itaconate, N-isopropylacrylamide, N-vinyl-2-pyrrolidone and the like are preferable.

  Examples of the polyfunctional monomer include esterified products of polyhydric alcohol and (meth) acrylic acid, polyfunctional polymerizable compounds containing two or more (meth) acryloyl groups such as urethane-modified acrylate, and the like. Examples of the polyhydric alcohol include ethylene glycol, diethylene glycol, triethylene glycol, polyethylene glycol, propylene glycol, tetrapropylene glycol, polypropylene glycol, propanediol, pentanediol, neopentyl glycol, 2-ethyl-1,3-hexanediol, Divalent alcohols such as 2,2′-thiodiethanol and 1,4-cyclohexanedimethanol; trihydric alcohols such as trimethylolpropane, glycerol, pentaerythritol, diglycerol, dipentaerythritol, ditrimethylolpropane Can be mentioned.

  The urethane-modified (meth) acrylate can be obtained by a urethanization reaction between an organic isocyanate having a plurality of isocyanate groups in one molecule and a (meth) acrylic acid derivative having a hydroxyl group. Organic isocyanates having a plurality of isocyanate groups in one molecule include organic isocyanates having two isocyanate groups in one molecule such as hexamethylene diisocyanate, isophorone diisocyanate, naphthalene diisocyanate, diphenylmethane diisocyanate, dicyclohexylmethane diisocyanate, and the like. Examples thereof include organic isocyanates having three isocyanate groups in one molecule in which isocyanate is isocyanurate-modified, adduct-modified, or biuret-modified.

Among them, di (meth) acrylate hexanediol, di (meth) acrylate neopentyl glycol, di (meth) acrylate diethylene glycol, di (meth) acrylate from the viewpoint of improving the strength of the cured product (film) and availability. (Meth) acrylic acid tripropylene glycol, (meth) acrylic acid esters such as hexa (meth) acrylic acid dipentaerythritol, adducts of isophorone diisocyanate and 2-hydroxyethyl (meth) acrylate, tolylene diisocyanate ( An adduct of 2-hydroxyethyl (meth) acrylate and an adduct of biuret-modified isophorone diisocyanate and 2-hydroxyethyl (meth) acrylate are preferred. In particular, a polyfunctional (meth) acrylic resin having 3 to 8 (meth) acryloyl groups is preferable. In this case, physical properties such as strength and hardness of the antiglare hard coat layer 12 can be improved.
(Translucent organic fine particles)
The translucent organic fine particles are for exhibiting a light diffusing function in the antiglare hard coat layer 12 and an antiglare function by forming irregularities on the surface. The translucent organic fine particles are formed from a resin obtained by polymerizing at least one monomer selected from, for example, vinyl chloride, (meth) acrylic monomer, styrene, and ethylene. As such translucent organic fine particles, a (meth) acrylic resin, a styrene-acrylic monomer copolymer resin (hereinafter simply referred to as a styrene-acrylic copolymer resin), or their ones can be used because the refractive index can be easily adjusted. A cross-linked product is preferred. In the case of a styrene-acrylic copolymer resin, it is more preferable in that the refractive index can be arbitrarily adjusted by changing the copolymer composition of both monomers. Here, in addition to styrene-acrylic copolymer resin or (meth) acrylic resin (refractive index 1.49), vinyl chloride resin, polystyrene resin (refractive index 1.54), polyethylene resin, melamine resin (refractive index 1.57). It is also possible to form translucent organic fine particles from a resin containing a polycarbonate resin or the like.

  In order to improve the sharpness of the image on the display and improve the contrast, and to improve the contrast, the internal noise generated by the difference in refractive index between the cured binder and the transparent organic fine particles is minimized. It needs to be small. Therefore, the refractive index difference between the refractive index of the cured binder and the refractive index of the translucent organic fine particles is preferably 0 to 0.05, more preferably 0 to 0.03, and still more preferably 0 to 0.0. Set to 01. By setting the difference between the refractive index of the cured binder and the refractive index of the translucent organic fine particles in such a range, light scattering inside the antiglare hard coat layer 12 can be suppressed, The permeability can be improved. When this difference in refractive index is larger than 0.05, light scattering inside the antiglare hard coat layer 12 becomes large, and the transmission of light is hindered to deteriorate the image definition.

  The light-transmitting organic fine particles are preferably monodispersed with a uniform particle diameter in order to uniformly diffuse or scatter light in and on the antiglare hard coat layer 12. The average particle diameter of the light-transmitting organic fine particles is preferably 1 to 20 μm, more preferably 2 to 10 μm, in order to sufficiently exhibit its function. When this average particle diameter is less than 1 μm, the antiglare property on the surface of the antiglare hard coat layer 12 tends to be insufficient. On the other hand, when it exceeds 20 μm, the haze value of the antiglare hard coat layer 12 becomes too high, and the transparency tends to be impaired. Here, the average particle diameter is a value calculated from a particle number distribution obtained by measuring the distribution by a Coulter counter method, converting the measured distribution into a particle number distribution. The Coulter counter method is a particle size measurement method using electric resistance, and is a method of measuring an average particle diameter by measuring a change in electric resistance between two electrodes that occurs when particles pass through pores. .

  The ratio of the average particle diameter of the translucent fine particles to the thickness of the antiglare hard coat layer 12 is preferably 10 to 100%. When this ratio is less than 10%, the amount of translucent fine particles added to form desired irregularities on the surface of the antiglare hard coat layer 12 is increased, and the haze value is increased. It tends to get worse. On the other hand, when it exceeds 100%, the unevenness on the surface of the antiglare hard coat layer 12 becomes too large, so that the haze value becomes large, image sharpness is deteriorated, and glare is increased, which is not preferable.

Content of translucent organic fine particles is 1-70 mass parts normally with respect to 100 mass parts of active energy ray hardening-type resin, Preferably it is 5-50 mass parts, More preferably, it is 10-40 mass parts. When the content of the light-transmitting organic fine particles is less than 1 part by mass, the function of the light-transmitting organic fine particles cannot be sufficiently exhibited, and satisfactory antiglare properties cannot be obtained. On the other hand, when the amount is more than 70 parts by mass, the haze value of the antiglare hard coat layer 12 becomes too high, and when the antiglare laminate 10 is placed on the display surface, whitening or the like occurs and image recognizability is improved. descend.
(Modified inorganic nanoparticles)
The modified inorganic nano-particles exhibit a function of adjusting the anti-glare property by suppressing sedimentation of the light-transmitting organic fine particles or floating on the surface. Among inorganic nanoparticles, inorganic nanoparticles dispersed in a colloidal form are particularly preferable. Examples of the material for forming the inorganic nanoparticles include metal oxides and metals such as silica, tin oxide, indium oxide, antimony oxide, alumina, titania, zirconia, etc., but silica is particularly preferable in consideration of refractive index, price, and the like. . The average particle diameter of the inorganic nanoparticles is 100 nm or less, preferably 1 to 100 nm, more preferably 1 to 50 nm, and most preferably 5 to 20 nm. When this average particle diameter exceeds 100 nm, the haze value of the antiglare laminate 10 tends to increase, and phenomena such as whitening increase.

  The inorganic nanoparticles are modified with a silane coupling agent. More preferably, the silane coupling agent has a functional group copolymerizable with the polymerizable double bond of the active energy ray-curable resin constituting the binder. Examples of the silane coupling agent include vinyltrimethoxysilane, 3-glycidoxypropyltrimethoxysilane, p-styryltrimethoxysilane, 3-methacryloxypropyltriethoxysilane, γ-methacryloyloxypropyltrimethoxysilane, γ -Acryloyloxypropyltrimethoxysilane, γ-methacryloyloxypropyltriethoxysilane, γ-acryloyloxypropyltriethoxysilane and the like are used.

  As a method for producing modified inorganic nanoparticles, for example, inorganic nanoparticles dispersed in a solvent are mixed by adding the above-mentioned silane coupling agent, and water (pure water) is added to this mixture, followed by normal hydrolysis. Perform reaction and condensation reaction. The solid content of the inorganic nanoparticles is preferably 20 to 40% by mass. Further, the order of adding the silane coupling agent is not particularly defined. The amount of water to be mixed is desirably 3 to 5 times the equivalent of the silane coupling agent. As an operation for carrying out the hydrolysis reaction and the condensation reaction, stirring and refluxing of the solvent are performed for 3 to 7 hours under normal pressure. Organic solvents suitable as a dispersion solvent include alcohols such as methanol, isopropyl alcohol, ethylene glycol, butanol, and ethylene glycol monopropyl ether; ketones such as methyl ethyl ketone and methyl isobutyl ketone; aromatic hydrocarbons such as toluene and xylene; Examples include amides such as dimethylformamide, dimethylacetamide, and N-methylpyrrolidone. These organic solvents can be used alone or in admixture of two or more. The resulting modified inorganic nanoparticle can be isolated by centrifugation or the like, but can also be subjected to a subsequent step in the presence of an organic solvent.

  Since the modified inorganic nanoparticles are modified with a silane coupling agent, the modified inorganic nanoparticles can exhibit excellent effects not found in conventional inorganic nanoparticles. That is, the anti-glare property can be adjusted by suppressing the sedimentation of the light-transmitting organic fine particles or floating on the surface, and the compatibility with the surface adjusting agent is good. Further, in the film, the anti-glare property is based on the silane coupling agent. Since the polymerizable double bond group and the polymerizable double bond group of the active energy ray-curable resin are chemically bonded to form a strong film, the surface strength of the film can be dramatically improved.

The content of the modified inorganic nanoparticle is usually 0.1 to 20 parts by mass, preferably 0.1 to 5 parts by mass with respect to 100 parts by mass of the active energy ray-curable resin. When the content of the modified inorganic nanoparticle is less than 0.1 parts by mass, the function of the modified inorganic nanoparticle cannot be sufficiently exhibited, and glare occurs on the surface of the antiglare laminate 10. On the other hand, when the amount is more than 20 parts by mass, the haze value of the antiglare hard coat layer 12 becomes too high, and when the antiglare laminate 10 is placed on the display surface, whitening or the like occurs and image recognizability is improved. While decreasing, the surface strength of the anti-glare laminate 10 decreases.
(Surface conditioner)
The surface conditioner expresses the function of reducing the number of defects by reducing the repelling of the composition for forming an antiglare hard coat layer to the transparent substrate film 11. Examples of such surface conditioners include modified polysiloxanes or (meth) acrylic polymers, and (organic) modified polysiloxanes are more preferable in order to balance the difference in surface tension. (Organic) modified polysiloxanes include polyether modified polydimethylsiloxane, polyether modified dimethylpolysiloxane, polyester modified dimethylpolysiloxane, polyester modified polydimethylsiloxane, polymethylalkylsiloxane, polyester modified polymethylalkylsiloxane, aralkyl modified polysiloxane. Examples thereof include methylalkylsiloxane and polyester-modified acrylic group-containing polydimethylsiloxane. Examples of the (meth) acrylic polymer include an acrylic polymer, an acrylic copolymer, and a methacrylic polymer.

The content of the surface conditioning agent is usually 0.01 to 10 parts by mass, preferably 0.05 to 5 parts by mass with respect to 100 parts by mass of the active energy ray-curable resin. When the content of the surface conditioner is less than 0.01 parts by mass, the function of the surface conditioner cannot be exhibited sufficiently, and defects are generated due to repelling or the like. On the other hand, when the amount is more than 10 parts by mass, the haze value of the antiglare hard coat layer 12 becomes too high, and when the antiglare laminate 10 is placed on the display surface, whitening or the like occurs and image recognizability is improved. descend.
(Diluted solvent)
The diluting solvent used for the preparation of the antiglare hard coat layer forming composition or binder is mainly used for applying the antiglare hard coat layer forming composition on the transparent substrate film 11. It is used for adjusting the viscosity of the layer forming composition or the binder and is not particularly limited as long as it is non-polymerizable. Diluent solvents such as toluene, xylene, ethyl acetate, propyl acetate, butyl acetate, ethyl cellosolve, propylene glycol monomethyl ether acetate, methyl alcohol, ethyl alcohol, isopropyl alcohol, butyl alcohol, diacetone alcohol, methyl ethyl ketone, methyl isobutyl ketone Is mentioned.
(Formation of the antiglare hard coat layer 12)
After applying the anti-glare hard coat layer forming composition on the transparent substrate film 11, the anti-glare hard coat layer 12 is laminated on the transparent substrate film 11 by irradiating and curing the active energy ray. Is done. The coating method is not particularly limited, and a commonly performed coating method such as a roll coating method, a spin coating method, a dip coating method, a brush coating method, a spray coating method, a bar coating method, a knife coating method, a die coating method, or a gravure. Any known method such as a coating method may be employed. In application, in order to improve adhesion, pretreatment such as corona discharge treatment can be applied to the surface of the transparent substrate film 11 in advance.

As an active energy ray source used for irradiation of active energy rays, for example, a high pressure mercury lamp, a halogen lamp, a xenon lamp, a nitrogen laser, an electron beam accelerator, a radioactive element or the like is used. In this case, it is preferable that the irradiation amount of an active energy ray is 50-5000 mJ / cm < ² > as an integrated light quantity in ultraviolet wavelength 365nm. When the irradiation amount is less than 50 mJ / cm ² , curing of the composition for forming an antiglare hard coat layer becomes insufficient, which is not preferable. On the other hand, when it exceeds 5000 mJ / cm ² , the active energy ray-curable resin tends to be colored, which is not preferable.

  In the antiglare laminate 10 thus obtained, in order to obtain light diffusibility and obtain antiglare properties, it is necessary to adjust the uneven shape of the antiglare laminate 10 surface. That is, regarding the uneven shape on the surface of the antiglare laminate 10, the arithmetic average roughness (Ra) defined in JIS B 0601-1994 on the surface of the antiglare laminate 10 is 0.01 to 0.30 μm. Preferably, the thickness is 0.01 to 0.20 μm, and most preferably 0.05 to 0.15 μm. By setting Ra of the unevenness on the surface of the antiglare laminate 10 in such a range, an appropriate light diffusibility is maintained particularly when the antiglare laminate 10 is disposed on a display for image display. In addition, there is no glare and good visibility of the display can be ensured.

  When Ra is less than 0.01 μm, the light diffusibility on the surface of the antiglare laminate 10 is insufficient, and the antiglare property tends to deteriorate. On the other hand, when Ra exceeds 0.30 μm, the haze value of the antiglare laminate 10 is increased, whitening occurs, and the image sharpness is deteriorated.

  Moreover, it is preferable that the average space | interval (Sm) of the unevenness | corrugation prescribed | regulated to JISB0601-1994 in the anti-glare laminated body 10 surface is 10-300 micrometers, It is more preferable that it is 30-200 micrometers, It is 50-180 micrometers. It is particularly preferred. When this Sm is in the range of 10 to 300 μm, glare is suppressed when the antiglare laminate 10 is placed on a display for image display, and good visibility of the display can be secured. . Sm represents the interval between the irregularities in the direction along the surface of the antiglare laminate 10, and this interval is important for suppressing glare particularly on the surface of the antiglare laminate 10. When Sm is less than 10 μm, the haze value of the antiglare laminate 10 is increased to cause a whitening phenomenon, making it difficult to obtain desired image clarity. On the other hand, when Sm exceeds 300 μm, the expression of light diffusibility on the surface of the antiglare laminate 10 is insufficient, and it is difficult to suppress glare.

  Moreover, a haze value is used as one of the indexes indicating the antiglare property of the antiglare laminate 10. The haze value (haze value, haze value) is measured in accordance with JIS K 7136, and is a value obtained by dividing the scattered light transmittance by the total light transmittance in percentage. The haze value is preferably 1 to 50%, more preferably 1 to 30%, particularly preferably 1.5 to 10%, and most preferably 1.5 to 5%. . When the haze value is less than 1%, the antiglare effect is insufficient, and it is difficult to prevent the reflection of an image when the antiglare laminate 10 is disposed on the display surface. On the other hand, if it is larger than 50%, the display image becomes white when the contrast is lowered or the antiglare laminate 10 is arranged on the display surface, which is not preferable.

The haze value is the refraction of the external haze caused by the external scattering due to the irregularities on the surface of the antiglare hard coat layer 12, the light-transmitting organic fine particles present in the antiglare hard coat layer 12 and the antiglare hard coat layer 12. It can be classified into internal haze due to internal scattering due to the rate difference. The antiglare laminate 10 aims to suppress image clarity and glare while maintaining antiglare properties, and therefore adjustment of external haze and internal haze is important. Since the antiglare property is mainly caused by the external haze, the surface unevenness needs to be increased to some extent in order to exhibit the antiglare property. On the other hand, since image clarity and glare are correlated with external haze and internal haze, it is necessary to keep both low.
[Low reflection layer 13]
Next, the anti-reflection layer 13 can have a single layer configuration or a multilayer configuration. In the case of a single layer configuration, one layer having a refractive index lower than that of the antiglare hard coat layer 12 (low refractive index layer) is formed on the front side of the antiglare hard coat layer 12. In the case of a multilayer structure, layers having different refractive indexes are laminated in a multilayer form on the front side of the antiglare hard coat layer 12. By adopting a multilayer structure, the reflectance can be lowered more effectively. From the viewpoint of the antireflection effect, a structure of three or more layers is preferable, and from the viewpoint of productivity and production cost, a single-layer structure or a two-layer structure is preferable.

  The method for forming the antireflection layer 13 is not particularly limited, and for example, a dry coating method, a wet coating method, or the like is employed. Among these methods, the wet coating method is particularly preferable in terms of productivity and production cost. The wet coating method may be a known method, and for example, a roll coating method, a spin coating method, a coil bar method, a dip coating method, etc. are representative methods. Among these, a method capable of continuously forming the antireflection layer 13 such as a roll coating method is preferable from the viewpoint of productivity and production cost. In order to express the function of the reduced reflection layer 13, it is a requirement that the layer to be formed has a lower refractive index than the layer immediately below, and the refractive index of the low refractive index layer is 1.20-1. It is preferable to be in the range of 55. When the refractive index exceeds 1.55, it is difficult to obtain a sufficient antireflection effect by the wet coating method, whereas when it is less than 1.20, it tends to be difficult to form a sufficiently hard layer. .

  Examples of the material constituting such a low refractive index layer include inorganic fine particles such as hollow silicon oxide, colloidal silica, lanthanum fluoride, and magnesium fluoride, organic polymer fine particles, and a simple substance or a mixture of a fluorine-containing organic compound. Can be used. In addition, an organic compound containing no fluorine (hereinafter abbreviated as a non-fluorine organic compound) or a mixture or a polymer can be used as a binder resin for forming the low refractive index layer.

  Further, the anti-reflection layer 13 may contain other components in addition to the above compounds as long as the effects of the present invention are not impaired. Other components are not particularly limited, for example, inorganic or organic pigments, polymers, polymerization initiators, photopolymerization initiators, polymerization inhibitors, antioxidants, dispersants, surfactants, light stabilizers, surfaces Additives such as regulators can be mentioned. Further, any amount of solvent can be added as long as it is dried after film formation by the wet coating method.

  Further, the reduced reflection layer 13 is preferably formed by a wet coating method and then subjected to a curing reaction by irradiation with active energy rays such as ultraviolet rays and electron beams or heating as necessary. Such a curing reaction using active energy rays is preferably performed in an atmosphere of an inert gas such as nitrogen or argon.

  The anti-reflective layer 13 polymerizes and cures the fluorine-containing curable coating liquid with high energy rays such as an electron beam, or polymerizes and cures the fluorine-containing curable coating liquid in the presence of a thermal decomposition type polymerization initiator or a photopolymerization initiator. It is obtained by doing. Among these, a fluorine-containing curable coating liquid to which a photopolymerization initiator is added is applied to the surface of the antiglare hard coat layer 12, and the formed film is irradiated with ultraviolet rays in an inert gas atmosphere to polymerize and cure. The method of making it preferable is.

  The irradiation amount of the active energy ray of the composition for forming a reduced reflection layer is preferably 10 mJ or more, more preferably 100 mJ or more. The upper limit of the irradiation amount is determined according to a conventional method in this type of ultraviolet irradiation. When the irradiation dose is less than 10 mJ, sufficient hardness cannot be obtained for the film obtained after polymerization and curing. Further, post-curing by ultraviolet irradiation may be performed after the polymerization curing. In order to obtain good polymerization curability, it is preferable to suppress the oxygen concentration at the time of ultraviolet irradiation to 1000 ppm or less by blowing an inert gas such as nitrogen or argon during both polymerization curing and post-curing. The reduced reflection layer (film) after curing has a refractive index of preferably 1.5 or less, particularly preferably 1.45 or less in consideration of uses such as an antiglare antireflection film, and the lower limit thereof is about 1.3. It is. The thickness of the antireflection layer 13 is preferably 50 to 200 nm. When this thickness is less than 50 nm or exceeds 200 nm, the antireflection effect is lowered.

  Further, the minimum reflectance wavelength at which the reflectance in the visible light region in 5 ° specular reflection of the antiglare laminate 10 including the antireflection layer 13 is minimum is preferably 450 to 560 nm, and more preferably 460 to 550 nm. More preferably, it is the range of 470-540 nm. By setting the minimum reflectance wavelength in such a range, the reflection color of the antiglare laminate 10 is controlled to be close to black, and the blackness in the black display image is improved.

In addition, the visibility reflectance showing the reflection of the antiglare laminate 10 is preferably 5% or less, and more preferably 2% or less. This visibility reflectance is obtained by measuring the reflectance (%) using a spectrophotometer equipped with a 5 ° specular reflection measuring device. When the visibility reflectance exceeds 5%, the reflection of light on the surface of the antiglare laminate 10 is increased, and the visibility is not preferable.
[display]
Next, a display is comprised by providing the anti-glare laminated body 10 mentioned above in the outermost surface of the side which displays the image of a display. This display is provided with the antiglare laminate 10 so that image reflection can be suppressed and visibility can be improved. Furthermore, since the unevenness | corrugation of the anti-glare laminated body 10 surface is set to the small range as mentioned above with respect to the display pixel size, there is no effect | action like a lens and it is excellent in the visibility of an image.

Specifically, the display displays images on personal computers, word processors, televisions, mobile phones, mobile terminals, game machines, automatic cash withdrawals, cash dispensers, vending machines, navigation devices, security system terminals, etc. Members (CRT, plasma display, liquid crystal display, electroluminescence display, field emission display, projection display, toner-based display used for electronic paper, etc.). Examples of other displays include glass cases such as showcases and show windows used for display for display, plastic cases, and the like.
[Summary of Effects and Effects of Embodiment]
In the antiglare laminate 10 in the present embodiment, the antiglare hard coat layer forming composition for forming the antiglare hard coat layer 12 is surface-treated with a silane coupling agent having a (meth) acryloyloxy group. Inorganic nanoparticle modified with is included, and a surface conditioner made of modified polysiloxane or (meth) acrylic polymer is included. For this reason, the modified inorganic nanoparticle has good compatibility with the surface conditioner and the binder, and the formation of optical defects is suppressed.

  In addition, the modified inorganic nano-particles float the light-transmitting organic fine particles, so that unevenness due to the light-transmitting organic fine particles is uniformly and sufficiently formed on the surface of the antiglare hard coat layer 12. In addition, the modified inorganic nanoparticles are set in a small range of 0 to 0.1 in refractive index difference from the cured binder. Therefore, the light transmittance within the antiglare hard coat layer 12 is not deteriorated. Therefore, the antiglare laminate 10 can reduce optical defects as much as possible, can suppress the haze value, and can exhibit excellent visibility.

  The translucent organic fine particles have an average particle size of 1 to 20 μm, the refractive index difference from the cured binder is 0 to 0.05, and the inorganic nanoparticles have an average particle size of 1 to 100 nm. . For this reason, the unevenness | corrugation of the anti-glare hard-coat layer 12 surface can fully be formed, scattering of the light in the anti-glare hard-coat layer 12 inside can be suppressed, and the light transmittance can be improved.

  The translucent organic fine particle is a (meth) acrylic resin or a cross-linked product thereof, and the inorganic nanoparticle is a silica fine particle, so that the refractive index can be easily adjusted, and the translucent organic fine particle It is possible to easily adjust the antiglare property by effectively suppressing sedimentation.

  The anti-glare layer 13 is further formed on the anti-glare hard coat layer 12 so that the minimum reflectance wavelength at which the reflectance in the visible light region at 5 ° regular reflection becomes the minimum value is in the range of 450 to 560 nm. Are stacked. In this case, reflection on the surface of the antiglare laminate 10 is suppressed and the reflection color is controlled, and the antiglare laminate 10 is further excellent in image sharpness and blackness in a black display image.

  -In the display of this embodiment, the said anti-glare laminated body 10 is provided in the outermost surface at the side which displays an image. Therefore, the display can exhibit the above-described effects of the antiglare laminate 10, has excellent display image transparency, good image sharpness, and can improve the blackness of black display images. it can.

Hereinafter, although the said embodiment is described more concretely, giving a manufacture example, an Example, and a comparative example, this invention is not limited to the range of these Examples.
Here, the anti-glare laminate 10 of Examples 1 to 3 has the configuration shown in FIG. 1 in which the anti-glare hard coat layer 12 is laminated on one surface of the transparent substrate film 11, and the implementation. The antiglare laminate 10 of Example 4 has a configuration shown in FIG. 2 in which an antiglare hard coat layer 12 and a reduced reflection layer 13 are sequentially laminated on a transparent substrate film 11. Further, the reflectance, the minimum reflectance wavelength, the surface roughness, the haze value, and the number of defects in each example were measured by the following methods.
(1) Reflectance measurement A spectrophotometer [trade name: U-best50, manufactured by JASCO Corporation] equipped with a 5 ° specular reflection measuring device with the back surface roughened with sandpaper in order to eliminate the back surface reflection of the measurement surface. ] Was used to measure the reflectance.
(2) Measurement of minimum reflectance wavelength A spectrophotometer [trade name: U, manufactured by JASCO Corp.] equipped with a 5 ° specular reflection measuring device with the back surface roughened with sandpaper in order to eliminate the back surface reflection of the measurement surface. -best50] was used to measure the reflectance, and a reflection spectrum was obtained. The wavelength at which the reflectance in the visible light region of the reflection spectrum becomes the minimum value was read.
(3) Surface roughness Co., Ltd. manufactured by Kosaka Laboratory Co., Ltd., using a surface roughness measuring instrument, Surfcorder SE500, with a scanning range of 4 mm and a scanning speed of 0.2 mm / s, complying with JIS B 0601-1944. Then, the arithmetic average roughness Ra (μm) and the average interval Sm (μm) of the irregularities were measured.
(4) Haze value The haze value (%) as an optical characteristic was measured using the haze meter [Nippon Denshoku Industries Co., Ltd. product, NDH2000].
(5) Number of defects The number of defects per 1 m ² of the antiglare laminate 10 was visually evaluated. Here, the said defect means the thing of the magnitude | size of 0.7 mm < ² > or more, and the said area was determined by the "contamination measurement chart (National Printing Bureau manufacture)".
(Production Example 1, Preparation of Modified Colloidal Silica)
Colloidal silica [refractive index: 1.46, manufactured by Nissan Chemical Co., Ltd., trade name: XBA-ST, 30% by mass dispersion of colloidal silica in xylene / butanol mixed solvent, average particle size: 10 to 15 nm] in a flask 500 Mass parts, 94 parts by mass of γ-acryloyloxypropyltrimethoxysilane [Shin-Etsu Chemical Co., Ltd., trade name: KBM5103] and 35 parts by mass of distilled water were mixed and heated under reflux (reaction temperature 80 ° C.) for 5 hours. The hydrolysis reaction and the condensation reaction were performed. By such operations, modified colloidal silica was prepared.
(Manufacture example 2, preparation of the composition for low reflection layer formation)
104 parts by mass of perfluoro- [1,1,9,9-tetrahydro-2,5-bisfluoromethyl-3,6-dioxanonenol] and bis [2,2,3,3,4,4,5 , 5,6,6,7,7-dodecafluoroheptanoyl] peroxide 8% by weight perfluorohexane solution 11 parts by mass of a hydroxyl group-containing fluorine-containing allyl ether polymer (number average molecular weight 72, 000, mass average molecular weight 118,000) 5 parts by mass, methyl ethyl ketone (MEK) 43 parts by mass, pyridine 1 part by mass, and α-fluoroacrylic acid fluoride 1 part by mass, fluorine-containing reactive heavy having a polymerizable double bond A coalescence solution (solid content 13 mass%, introduction rate of α-fluoroacryloyl group 40 mol%) was prepared.

Further, hollow silica sol [manufactured by Catalyst Kasei Kogyo Co., Ltd., trade name: ELCOM NY-1001SIV, 25 mass% dispersion of hollow silica sol with isopropyl alcohol, average particle size: 60 nm] 2000 parts by mass, γ-acryloyloxypropyltrimethoxy 70 parts by mass of silane (manufactured by Shin-Etsu Chemical Co., Ltd., trade name: KBM5103) and 80 parts by mass of distilled water were mixed to prepare modified hollow silica fine particles (sol) (average particle size: 60 nm). And, 50 parts by mass of the fluorine-containing reactive polymer solution, 50 parts by mass of the modified hollow silica fine particles, 2 parts by mass of a photopolymerization initiator [manufactured by Ciba Specialty Chemicals, Inc., trade name: Irgacure 907], and isopropyl alcohol A composition for forming a reduced reflection layer was obtained by mixing 2000 parts by mass.
(Example 1)
Urethane acrylate [urethane acrylate having 6 acryloyl groups in one molecule (hexafunctional urethane acrylate), molecular weight 1400, viscosity at 60 ° C. is 2500 to 4500 Pa · s, manufactured by Nippon Synthetic Chemical Industry Co., Ltd., purple light UV7600B] 100 mass 1- [4- (2-hydroxyethoxy) phenyl] -2-hydroxy-2-methyl-1-propan-1-one [manufactured by Ciba Specialty Chemicals, Inc., Irgacure (Irg) 2959] 3 parts by mass and 83.4 parts by mass of methyl isobutyl ketone (MIBK) were mixed to prepare a binder. Cross-linked acrylic-styrene copolymer resin fine particles (Sekisui Plastics Co., Ltd., SSX-105TND, monodispersed fine particles with uniform particle size, average particle size is 5.0 μm) as translucent organic fine particles in the binder 30 2 parts by mass of modified inorganic nanoparticles prepared in Production Example 1, organic modified polysiloxane [polyether modified dimethylpolysiloxane, BYK-306, BYK-306] 0.4 mass as a surface conditioner The composition for forming an antiglare hard coat layer was prepared by mixing the parts.

This composition for forming an antiglare hard coat layer was applied as a transparent substrate film 11 onto a polyethylene terephthalate (PET) film having a thickness of 100 μm by a roll coater and dried at 80 ° C. for 2 minutes. Then, ultraviolet rays were irradiated by a 120 W high-pressure mercury lamp (manufactured by Nippon Battery Co., Ltd.) (accumulated light amount: 400 mJ / cm ² ) and cured to produce an antiglare hard coat layer 12 (refractive index of cured binder): 1 .50). The refractive index difference between the modified inorganic nanoparticles and the cured binder was 0.04, and the thickness of the antiglare hard coat layer 12 was 8.5 μm.
(Example 2)
Colloidal silica of modified inorganic nanoparticles in Production Example 1 [refractive index: 1.46, manufactured by Nissan Chemical Co., Ltd., trade name: XBA-ST, 30 mass% dispersion of colloidal silica in xylene / butanol mixed solvent, average particle Colloidal silica [refractive index: 1.46, manufactured by Nissan Chemical Co., Ltd., trade name: IPA-ST-L, 30% by mass dispersion of colloidal silica in isopropyl alcohol, average particle instead of diameter: 10-15 nm] The antiglare hard coat layer 12 was produced in the same manner as in Example 1 except that [diameter: 40 to 50 nm] was used. The refractive index difference between the modified inorganic nanoparticles and the cured binder was 0.04, and the thickness of the antiglare hard coat layer 12 was 8.6 μm.
(Example 3)
Dipentaerythritol hexaacrylate was used in place of the urethane acrylate of the antiglare hard coat layer forming composition in Example 1, and the photopolymerization initiator 1- [4- (2-hydroxyethoxy) phenyl] -2-hydroxy was used. Instead of 2-methyl-1-propan-1-one [Ciba Specialty Chemicals, Inc., Irg. 2959], 1-hydroxycyclohexyl phenyl ketone [Ciba Specialty Chemicals, Irgacure (Irg.) 184] was used as in Example 1 except that cross-linked acrylic resin fine particles (manufactured by Soken Chemical Co., Ltd., MX-500, average particle size is 5.0 μm) were used as light-transmitting organic fine particles. An antiglare hard coat layer 12 was produced. The refractive index difference between the modified inorganic nanoparticles and the cured binder was 0.04, and the thickness of the antiglare hard coat layer 12 was 8.8 μm.
Example 4
An antiglare hard coat layer 12 was produced in the same manner as in Example 1. Next, the anti-glare hard coat layer 12 is coated on the surface of the anti-reflection layer composition prepared in Production Example 2 so that the thickness when dried is 0.09 μm, and then UV is applied in a nitrogen atmosphere. A 400 mJ ultraviolet ray was irradiated using an irradiation apparatus (120 W high pressure mercury lamp, manufactured by Eye Graphics Co., Ltd.), the antireflection layer forming composition was cured, and the antireflection layer 13 was formed on the antiglare hard coat layer 12. .
(Comparative Example 1)
The modified inorganic nanoparticle described in Example 1 was changed to 2 parts by mass of inorganic fine particles (refractive index: 1.46, manufactured by Nissan Chemical Co., Ltd., IPA-ST, 30% by mass dispersion of colloidal silica using isopropyl alcohol). All produced antiglare hard coat layers under the same conditions as in Example 1.
(Comparative Example 2)
In accordance with Production Example 1, the modified inorganic fine particles whose surface was modified by changing the colloidal silica to silica particles [manufactured by Fuji Silysia Chemical Co., Ltd., Pyrospher C-1504, average particle size: 4.0 μm] An antiglare hard coat layer was produced under the same conditions as in Example 1 except that the modified inorganic nanoparticle described in 1 was used.
(Comparative Example 3)
The modified inorganic nanoparticle described in Example 1 is an inorganic fine particle, titanium dioxide [manufactured by C.I. Kasei Co., Ltd., 15% by mass dispersion of titanium dioxide in toluene, average particle size: 30 nm, and the refractive index of the inorganic fine particle is 2. Since the refractive index of the cured binder was 1.50, the refractive index difference between the modified inorganic fine particles and the cured binder was 1.02. An antiglare hard coat layer was prepared under the same conditions as in Example 1 except that the content was 2 parts by mass.

  About the anti-glare laminated body of Examples 1-4 and Comparative Examples 1-3, the thickness of an anti-glare hard-coat layer, a reflectance, the minimum reflectance wavelength, arithmetic mean roughness Ra, the average space | interval Sm of an unevenness | corrugation, haze Table 1 shows the values and the number of defects.

表１に示したように、実施例１〜４においては、算術平均粗さと凹凸の平均間隔が十分に調整されており、さらにはヘイズ値が小さいことから、ぎらつきがなく、画像鮮明性に優れている。さらに、防眩性ハードコート層形成用組成物には変性無機ナノ微粒子と表面調整剤とが含まれていることから、欠陥数が少なく、ディスプレイ表面に用いるには好適な防眩性積層体１０であることが明らかになった。

As shown in Table 1, in Examples 1 to 4, the arithmetic average roughness and the average interval between the irregularities are sufficiently adjusted, and furthermore, since the haze value is small, there is no glare and the image clarity is high. Are better. Further, since the composition for forming an antiglare hard coat layer contains modified inorganic nanoparticles and a surface conditioner, the antiglare laminate 10 has a small number of defects and is suitable for use on a display surface. It became clear that.

  In Example 4, since the antireflection layer 13 having a reflectance of 0.85% and a minimum reflectance wavelength of 488 nm is formed on the antiglare hard coat layer 12, the antireflection layer of Example 1 is protected. The reflection color of the anti-glare laminate 10 is controlled to be close to black as compared with the glare laminate 10, and the black color in the black display image is good.

  On the other hand, in Comparative Example 1, since the surface of the inorganic fine particles was not modified, the number of defects was large and the result was not suitable for use on the display surface. In Comparative Example 2, since the average particle size of the inorganic fine particles was on the order of microns, the haze value was large and the image sharpness was poor. In Comparative Example 3, the difference in refractive index between the inorganic fine particles and the cured cured binder was large, and thus the haze value was large. Furthermore, since the surface was not modified, the number of defects was large, and the laminate was inappropriate for use on the display surface.

It should be noted that the above embodiment can be modified as follows.
-As inorganic nano-particles, a combination of a plurality of different types, average particle diameters, refractive indexes, etc. is used, and the anti-glare property adjustment by the anti-glare hard coat layer 12 is performed more effectively. You can also.

  -As the light-transmitting organic fine particles, a plurality of different types, refractive indexes, average particle diameters, and the like can be used in combination, and the light diffusibility and the antiglare property can be adjusted more effectively.

  ・ Considering the compatibility of the silane coupling agent that modifies the inorganic nanoparticles and the surface conditioner, each compound is used in combination to enhance the function of the modified inorganic nanoparticles and the surface conditioner. It is also possible.

  The composition for forming an antiglare hard coat layer may contain a near infrared absorber, an ultraviolet absorber and the like, and the antiglare hard coat layer 12 can exhibit a near infrared absorption effect and an ultraviolet absorption effect.

  -It is also possible to form the pressure-sensitive adhesive layer on the surface of the transparent base film 11 where the antiglare hard coat layer 12 is not formed, and to make it easy to adhere to the display.

  To improve the adhesion of the antiglare hard coat layer 12 to the transparent substrate film 11 by blending a monomer having a carboxyl group, an amino group or the like with the active energy ray-curable resin that forms the binder. It can also be configured.

-An antiglare layer, a near-infrared absorbing layer, or the like can be laminated on the antiglare hard coat layer 12.
Furthermore, the technical idea grasped from the embodiment will be described below.

  The antiglare laminate according to any one of claims 1 to 4, wherein the translucent organic fine particles are a cross-linked product of a (meth) acrylic resin. When comprised in this way, in addition to the effect of the invention which concerns on any one of Claims 1-4, physical properties, such as an intensity | strength and hardness of an anti-glare hard-coat layer, can be improved further.

  The antiglare laminate according to any one of claims 1 to 4, wherein the inorganic nanoparticle is colloidal silica. When configured in this manner, in addition to the effects of the invention according to any one of claims 1 to 4, the light-transmitting organic fine particles can be floated on the surface to improve the antiglare property, and the refractive index. Can be easily adjusted.

  The active energy ray-curable resin constituting the binder is a polyfunctional (meth) acrylic resin having 3 to 8 (meth) acryloyl groups. 2. The antiglare laminate according to item 1. When comprised in this way, in addition to the effect of the invention which concerns on any one of Claims 1-4, physical properties, such as an intensity | strength and hardness of an anti-glare hard-coat layer, can be improved.

  The antiglare laminate according to any one of claims 1 to 4, wherein the surface conditioner is made of an organically modified polysiloxane. When comprised in this way, in addition to the effect of the invention which concerns on any one of Claims 1-4, the surface tension of the composition for glare-proof hard-coat layer formation can be suppressed, and with respect to a transparent base film Repel can be suppressed.

  The anti-glare laminate according to any one of claims 1 to 4, wherein the binder contains a diluting solvent. When comprised in this way, in addition to the effect of the invention which concerns on any one of Claims 1-4, while being able to improve the mixability of each component in the composition for anti-glare hard-coat layer formation, The coatability of the composition for forming a dazzling hard coat layer can be improved.

Sectional drawing which shows the glare-proof laminated body in embodiment of this invention. Sectional drawing which shows the anti-glare laminated body by which the antireflection layer is laminated | stacked on the anti-glare hard-coat layer.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Anti-glare laminated body, 11 ... Transparent base film, 12 ... Anti-glare hard-coat layer, 13 ... Anti-reflection layer.

Claims (5)

An anti-glare laminate in which an anti-glare hard coat layer is laminated on a transparent substrate film, wherein the anti-glare hard coat layer includes a binder containing an active energy ray-curable resin and a photopolymerization initiator, The surface of the organic organic fine particles is modified with a silane coupling agent having a (meth) acryloyloxy group, the inorganic nanoparticles having a refractive index difference of 0 to 0.1 with the cured binder, and the modified polysiloxane or An anti-glare laminate, which is formed by curing a composition for forming an anti-glare hard coat layer containing a surface conditioner comprising a (meth) acrylic polymer. The translucent organic fine particles have an average particle size of 1 to 20 μm, the refractive index difference from the cured binder is 0 to 0.05, and the inorganic nanoparticles have an average particle size of 1 to 100 nm. The anti-glare laminate according to claim 1. The antiglare laminate according to claim 1 or 2, wherein the translucent organic fine particles are (meth) acrylic resin or a crosslinked product thereof, and the inorganic nano fine particles are silica fine particles. The anti-glare hard coat layer was further laminated with a reduced reflection layer formed so that the minimum reflectance wavelength at which the reflectance in the visible light region at 5 ° regular reflection was the minimum was in the range of 450 to 560 nm. The anti-glare laminate according to any one of claims 1 to 3, wherein A display comprising the antiglare laminate according to any one of claims 1 to 4 on an outermost surface on an image display side.

Images