JP3507719B2 - Anti-glare film, polarizing element and display device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an antiglare film, a polarizing element, and an antiglare film suitable for use on the surface of a high-definition image display such as a CRT used for image display of a word processor, a computer, a television, a liquid crystal panel and the like. The present invention relates to a display device using an antiglare film or a polarizing element.

[0002]

2. Description of the Related Art In a display as described above, when the light emitted from the inside proceeds straight without diffusing on the display surface, the light emitted from the inside is diffused to some extent because the display surface is dazzling when viewed. The antiglare film of is provided on the display surface.

This antiglare film is disclosed, for example, in Japanese Patent Laid-Open No. 6-1.
As disclosed in Japanese Unexamined Patent Publication No. 8706, Japanese Unexamined Patent Application Publication No. 10-20103, etc., a transparent substrate film is formed by coating a resin containing a filler such as silicon dioxide (silica) on the surface thereof.

In these antiglare films, a type in which irregularities are formed on the surface of the antiglare layer by agglomeration of particles of cohesive silica or the like, and an organic filler having a particle size larger than the film thickness of the coating film is added to the resin. Then, there is a type in which unevenness is formed on the surface of the layer, or a film having unevenness is laminated on the surface of the layer to transfer the unevenness.

[0005]

In any of the conventional antiglare films as described above, the light diffusion / antiglare action is obtained by the action of the surface shape of the antiglare layer. In order to improve the property, it is necessary to make the uneven shape large, but when the unevenness becomes large, there is a problem that the haze value (haze value) of the coating film increases and the sharpness of the image decreases accordingly. .

Similar to the above, a light-diffusing film in which fine particles are dispersed inside a layer to obtain a light-dispersing effect is used, for example, for a reflection type liquid crystal display device. 1996) pp. 277-2
It is disclosed on page 82.

In order to obtain a sufficient light diffusing effect due to the internal scattering effect used here, the particle size of the fine particles used must be made large. Therefore, although the haze value is high, a clear image can be obtained. There is a problem that the sex is very small.

When a light-diffusing film, such as the light-diffusing film, which has a light-diffusing effect on the surface of the display is used as an anti-glare material, the surface is almost flat, and therefore the external light to the display surface is almost flat. There is also a problem that it is not possible to prevent the reflection of.

Furthermore, the above-mentioned conventional type of antiglare film has a problem in that a glittering shine called so-called scintillation occurs on the film surface and the visibility of the display screen is deteriorated.

Haze value is one of the evaluation criteria for such an antiglare film. However, when the haze value of the surface is lowered, a feeling of glare called so-called "face roughness" becomes strong,
If the haze value is increased in order to solve this, there is a problem that the whole becomes whitish and the black density is lowered, which lowers the contrast. On the contrary, if the haze value is lowered to remove the whiteness, there is a problem that so-called glare and glare increase.

The present invention has been made in view of the above problems of the prior art, and when mounted on the surface of a display, it is possible to suppress a reduction in contrast and prevent glare, glare and whitening. An object is to provide a film, a polarizing element using the same, and a display device using the antiglare film or the polarizing element.

[0012]

According to a first aspect of the present invention, there is provided a transparent substrate film comprising a transparent resin containing a transparent diffusing agent having a different refractive index on at least one surface thereof. By laminating a glare layer, the surface haze value hs of the surface irregularities of the antiglare layer is 7 <hs <30, and the internal haze value hi due to internal diffusion of the antiglare layer is 1 <hi <15.
The above object is achieved.

Further, a low refractive index layer having a refractive index lower than that of the antiglare layer may be further laminated on the antiglare layer.

Further, the low refractive index layer may be formed of a silicon-containing vinylidene fluoride copolymer.

The silicon-containing vinylidene fluoride copolymer is a vinylidene fluoride-hexafluoropropylene copolymer having a fluorine content of 60 to 70.
It may be a polymer of a fluorine-containing copolymer in an amount of wt% and a polymerizable compound having an ethylenically unsaturated group.

Further, the low refractive index layer is coated with a coating film composed of at least the fluorine-containing copolymer and the polymerizable compound having an ethylenically unsaturated group, and then irradiated with active energy rays or heated. It may be formed by.

The low refractive index layer may be formed of a silicon oxide film, and an antifouling layer may be further formed thereon.

The sum of the haze value hs in the surface irregularities of the antiglare layer in the antiglare film and the internal haze value hi due to internal diffusion of the antiglare layer may be 30 or less.

The difference Δn in refractive index between the light-transmitting resin and the light-transmitting diffuser in the antiglare layer is 0.01 ≦ Δn ≦ 0.
5 and the average particle diameter d of the translucent diffusing agent is 0.1
It is also possible to set μm ≦ d ≦ 5 μm.

The translucent resin in the antiglare film is
At least one of a thermosetting resin and an ionizing radiation curable resin may be used, and the translucent diffusing agent may be organic fine particles.

The organic fine particles may be styrene beads.

The transparent substrate film in the antiglare film may be composed of one of a triacetate cellulose film and a polyethylene terephthalate film.

Further, a transparent conductive layer may be provided between the transparent substrate film and the antiglare layer, and a conductive material may be contained in the antiglare layer.

According to the present invention of a polarizing element, as described in claim 13, the antiglare film according to any one of the above and a surface of the antiglare film on a surface opposite to the antiglare layer in the transparent substrate film. The above-mentioned object is achieved by a polarizing element comprising: a polarizing plate laminated so as to face.

Further, after saponifying the surface of the transparent base film opposite to the antiglare layer and the surface of the antiglare layer, a polarizing plate may be laminated on the surface of the transparent base film. .

According to a fifteenth aspect of the present invention related to a display device, a display panel having a plurality of pixels, each pixel transmitting or reflecting light to form an image, and a display panel of the display panel. The above object is achieved by a display device including any one of the above-mentioned antiglare films provided on the display surface side.

According to a sixteenth aspect of the present invention, there is provided a display panel having a plurality of pixels, each pixel forming an image by emitting light or reflecting light, and a display surface side of the display panel. The above-described object is achieved by a display device including the above-described polarizing element provided in.

In the present invention, when an antiglare layer is formed by laminating an antiglare layer made of a translucent resin containing translucent diffusing agents having different refractive indexes, a surface haze value in the surface irregularities of the antiglare layer is formed. When hs is 7 <hs <30 and the internal haze value hi due to internal diffusion of the antiglare layer is 1 <hi <15, the particle size of the translucent diffusing agent is reduced and the display quality in a liquid crystal display or the like is reduced. It is based on the finding that the quality can be made better or better.

[0029]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the drawings.

As shown in FIG. 1, the antiglare film 10 according to the first example of the embodiment of the present invention has a transparent substrate film 12 having one surface (the upper surface in the drawing) having a different light transmission index. The anti-glare layer 18 made of the translucent resin 16 containing the light-diffusing agent 14 is laminated, and the low refractive index layer 20 is further laminated on the outer side of the anti-glare layer 18. The hs is 7 <hs <30, and the internal haze value hi due to the internal diffusion of the antiglare layer 18 is 1 <hi <15.

The low refractive index layer 20 has almost no effect on the haze value of the surface of the antiglare layer 18 as long as it has a material and a film thickness within the normal range for exhibiting an antireflection effect.

The lower the haze value on the surface of the antiglare layer 18, the smaller the blurring of the display, and the clearer the display can be obtained. However, if the haze value is too low, glare and glare are generated, and the high haze value is high. If too much, it becomes whitish (whitening; decrease in black density), and the surface haze value hs is 7 <hs <30 as described later.
Is preferable, 7 ≦ hs ≦ 20 is more preferable, and 7 ≦ hs ≦
15 is the most preferable. Further, even if the surface haze value hs is optimized, surface glare easily occurs when the internal haze value hi is low,
The internal haze value hi of the antiglare layer 18 is preferably 1 <hi <1.
5, more preferably 2 ≦ hi <15, most preferably 3
When ≦ hi ≦ 12, the surface glare could be reduced. Further, if the sum of both haze values on the surface and inside of the antiglare layer 18 is set to 30 or less, the decrease in black density (contrast) could be prevented.

As described above, in the present invention, the surface diffusion and the internal diffusion in the antiglare layer 18 are used together to obtain a predetermined effect. However, the surface haze value hs and the internal haze as described above are obtained. By forming the antiglare layer 18 so that the sum with the value hi becomes a predetermined value, it is possible to obtain a greater effect. At this time, usually, the fine particles contained in the antiglare layer 18 can provide appropriate irregularities on the surface of the resin layer, which is a preferred form.

Further, a transparent resin 16 mixed with a transparent diffusing agent 14 is applied to the transparent substrate film 12, and the surface roughness Ra is 1.2 μm on the surface of the applied layer. The following shape-imparting film having fine irregularities formed thereon is laminated so that the surface is in contact with the coating layer, and when the light-transmissive resin 16 is an electron beam or an ultraviolet curable resin, these electron Irregularities can also be formed by irradiating rays or ultraviolet rays through the shape-imparting film, and heating and curing the solvent-drying-type resin, and then peeling the shape-imparting film from the cured antiglare layer 18. Is possible.

In this way, the antiglare layer 18 has fine irregularities having a surface roughness Ra of 1.2 μm or less formed beforehand on the pattern forming film.

In order to achieve the above, in the example of the above embodiment, the difference Δn between the refractive index of the transparent resin 16 and the refractive index of the transparent diffusing agent 14 constituting the antiglare layer 18 is 0. 01
≦ Δn ≦ 0.5, and the average particle diameter d of the diffusing agent is
0.1 μm ≦ d ≦ 5 μm.

As described above, the reason why the refractive index difference Δn is set to 0.01 or more is that when it is less than 0.01, a very large number of diffusing agents are required to exhibit the light diffusing property in the antiglare layer 18. It must be contained in the light-transmissive resin. If this is done, the adhesiveness of the antiglare layer 18 to the transparent substrate film 12 and the coating suitability deteriorate, and if Δn is larger than 0.5, , The content of the translucent diffusion agent 14 in the translucent resin 16 is small,
This is because the antiglare layer 18 having uniform and appropriate unevenness cannot be obtained.

Regarding the average particle diameter d of the translucent diffusing agent 14, when this is less than 0.1 μm, the translucent diffusing agent 1
4 becomes difficult to disperse in the light-transmissive resin 16, aggregation cannot occur to form an antiglare layer 18 having uniform and appropriate unevenness, and when d> 5 μm, the antiglare layer 18 Since the internal diffusion effect is reduced, the internal haze value is reduced, which causes surface glare. Since the film thickness is further increased, curing shrinkage in the manufacturing process of the translucent resin 16 increases, and cracks and curls occur.

The reason why the haze value on the surface and inside of the antiglare layer 18 is set as described above is based on the findings (see Examples and Tables described later) obtained by the experiments of the present inventors. . The haze value as described above is specifically obtained by adjusting the filler / binder ratio, which is the ratio of the translucent diffuser 14 and the translucent resin 16, the solvent and the like.

Materials for the transparent substrate film 12 include transparent resin film, transparent resin plate, transparent resin sheet and transparent glass.

As the transparent resin film, triacetate cellulose (TAC) film, polyethylene terephthalate (PET) film, diacetyl cellulose film, acetate butyrate cellulose film, polyether sulfone film, polyacrylic resin film, polyurethane resin film, Polyester film, polycarbonate film, polysulfone film, polyether film, polymethylpentene film, polyetherketone film, (meth) acrylonitrile film and the like can be used. Also, the thickness is usually 25
It is about μm to 1000 μm.

For the liquid crystal application, the transparent substrate film 12 is made of TAC having no birefringence, which enables lamination of an antiglare film and a polarizing element (described later), and the display quality is further improved by using the antiglare film. It is particularly preferable because a superior display device can be obtained.

Further, in view of processability such as heat resistance, solvent resistance and mechanical strength when the antiglare layer 18 is applied by various coating methods, the transparent substrate film 12 is made of P.
ET is particularly desirable.

Translucent resin 16 forming the antiglare layer 18
As the resin, there are mainly used three kinds of resins which are curable mainly by ultraviolet rays and electron beams, that is, an ionizing radiation curable resin, an ionizing radiation curable resin in which a thermoplastic resin and a solvent are mixed, and a thermosetting resin.

The film-forming component of the ionizing radiation-curable resin composition preferably has an acrylate-based functional group, for example, polyester resin, polyether resin, acrylic resin, epoxy resin, urethane resin having a relatively low molecular weight, Alkyd resins, spiro acetal resins, polybutadiene resins, polythiol polyene resins, oligomers or prepolymers of (meth) allylates of polyfunctional compounds such as polyhydric alcohols, and ethyl (meth) acrylate, ethylhexyl (meth) acrylate as reactive diluents. , Styrene, methylstyrene, N-vinylpyrrolidone and other monofunctional and polyfunctional monomers such as polymethylolpropane tri (meth) acrylate, hexanediol (meth) acrylate, tripropylene glycol di (meth) ) Acrylate, diethylene glycol di (meth) acrylate, pentaerythritol tri (meth) acrylate, dipentaerythritol hexa (meth) acrylate, 1,6-hexanediol di (meth) acrylate, neopentyl glycol di (meth) acrylate, etc. It is possible to use a material containing an extremely large amount.

Further, in order to make the above ionizing radiation curable resin composition into an ultraviolet curable resin composition, acetophenones, benzophenones, Michler benzoyl benzoate, α-amyloxime ester, as photopolymerization initiators, Tetramethylthiuram monosulfide, thioxanthone, n-butylamine, triethylamine, poly-n-butylphosphine, etc. can be mixed and used as a photosensitizer. Particularly in the present invention, it is preferable to mix urethane acrylate as the oligomer and dipentaerythritol hexa (meth) acrylate as the monomer.

Further, as the translucent resin 16 for forming the antiglare layer 18, a solvent drying type resin may be contained in the above ionizing radiation curing type resin. A thermoplastic resin is mainly used as the solvent-drying resin.
As the solvent-drying thermoplastic resin to be added to the ionizing radiation-curable resin, those usually used are used. When the transparent base film 12 is a cellulosic resin such as TAC as described above, ionizing radiation is particularly preferable. Cellulose resins such as nitrocellulose, acetyl cellulose, cellulose acetate propionate, and ethyl hydroxyethyl cellulose are advantageous as the solvent-drying resin contained in the curable resin in terms of adhesion and transparency of the coating film.

The reason is that when toluene is used as a solvent in the above-mentioned cellulose resin, the transparent substrate film 1
Despite the use of toluene, which is a non-soluble solvent for polyacetyl cellulose (2), the transparent substrate film 12
Adhesion between the transparent base film 12 and the coating resin can be improved even when a coating material containing this solvent-drying resin is applied to the toluene. This is because cellulose is not dissolved, so that the surface of the transparent substrate film 12 is not whitened and there is an advantage that transparency is maintained.

Further, there is an advantage of including a solvent drying type resin in the ionizing radiation curing type resin composition as follows.

When the ionizing radiation-curable resin composition is applied to the transparent substrate film 12 with a roll coater having a metering roll, the liquid residual resin film on the surface of the metering roll flows and causes streaks or unevenness over time. However, when they are re-transferred to the coated surface to cause defects such as streaks and unevenness on the coated surface, when the ionizing radiation curable resin composition contains a solvent drying type resin as described above, Coating film defects can be prevented.

As a method for curing the above-mentioned ionizing radiation-curable resin composition, the above-mentioned ionizing radiation-curable resin composition can be cured by an ordinary curing method, that is, by curing with an electron beam or an ultraviolet ray. it can.

An electron beam or the like having an energy of KeV is used, and in the case of ultraviolet curing, ultraviolet rays or the like emitted from light rays of an ultrahigh pressure mercury lamp, a high pressure mercury lamp, a low pressure mercury lamp, a carbon arc, a xenon arc, a metal halide lamp or the like can be used.

As the thermoplastic resin mixed with the ionizing radiation curable resin, phenol resin, urea resin, diallyl phthalate resin, melanin resin, guanamine resin,
Unsaturated polyester resin, polyurethane resin, epoxy resin, aminoalkyd resin, melamine-urea co-condensation resin, silicon resin, polysiloxane resin, etc. are used, and curing of these resins such as crosslinking agent and polymerization initiator is necessary. Used by adding agents, polymerization accelerators, solvents, viscosity modifiers and the like.

As the light transmissive diffusing agent 14 contained in the antiglare layer 18, plastic beads are preferable, and the transparency is particularly high, and the difference in refractive index from the matrix resin (light transmissive resin 16) is as described above. It is preferable that the numerical value is

As the plastic beads, styrene beads (refractive index 1.59) and melamine beads (refractive index 1.
57), acrylic beads (refractive index 1.49), acrylic-styrene beads (refractive index 1.54), polycarbonate beads, polyethylene beads, vinyl chloride beads and the like. The particle size of these plastic beads is appropriately selected and used as described above. Of the above plastic beads, styrene beads are particularly preferably used.

When the translucent diffusing agent 14 as the organic filler as described above is added, the organic filler easily precipitates in the resin composition (translucent resin 16). You may add inorganic fillers, such as. It should be noted that the more the inorganic filler is added, the more effective it is in preventing the sedimentation of the organic filler, but it adversely affects the transparency of the coating film. Therefore, preferably, an inorganic filler having a particle diameter of 0.5 μm or less is contained in the translucent resin 16 in an amount of less than 0.1% by weight so as not to impair the transparency of the coating film to prevent sedimentation. You can

When the inorganic filler, which is an anti-settling agent for preventing the sedimentation of the organic filler, is not added, the organic filler is precipitated at the bottom when the transparent substrate film 12 is applied, so that the mixture is thoroughly stirred to make it uniform. You can use it.

Generally, the ionizing radiation curable resin has a refractive index of about 1.5, which is about the same as that of glass, but in comparison with the refractive index of the translucent diffusing agent 14, the refractive index of the resin used is When the refractive index is low, the translucent resin 16 has TiO 2 (refractive index: 2.3 to 2.
7), Y2 O3 (refractive index; 1.87), La2 O3 (refractive index; 1.95), ZrO2 (refractive index; 2.05), A
L2 O3 (refractive index: 1.63) or the like can be added to the extent that the diffusivity of the coating film can be maintained, and the refractive index can be increased and adjusted.

Low refractive index layer 20 used in the present invention
Is a silicon-containing vinylidene fluoride copolymer, and specifically, the fluorine content ratio obtained by copolymerizing a monomer composition containing 30 to 90% by weight of vinylidene fluoride and 5 to 50% by weight of hexafluoropropylene is 60-7
A resin composition comprising 100 parts by weight of a fluorine-containing copolymer, which is 0% by weight, and 80 to 150 parts by weight of a polymerizable compound having an ethylenically unsaturated group. Using this resin composition, a low-refractive index layer 20 having a film thickness of 200 nm or less and having a scratch resistance and a refractive index of less than 1.60 (preferably 1.45 or less) is formed.

The fluorine-containing copolymer used in the low refractive index layer 20 is a copolymer obtained by copolymerizing a monomer composition containing vinylidene fluoride and hexafluoropropylene. The ratio of each component in the composition is 30 to 30% vinylidene fluoride.
90% by weight, preferably 40 to 80% by weight, particularly preferably 40 to 70% by weight, and hexafluoropropylene 5 to 50% by weight, preferably 10 to 50% by weight,
It is particularly preferably 15 to 45% by weight. This monomer composition further contains 0 to 40% by weight of tetrafluoroethylene, preferably 0 to 35% by weight, particularly preferably 10 to 40% by weight.
It may contain 30% by weight.

Further, the monomer composition for obtaining this fluorine-containing copolymer contains other copolymer components in an amount of, for example, 20% by weight or less, preferably within a range not impairing the objects and effects of the present invention. It may be contained in the range of 10% by weight or less. Here, as specific examples of the other copolymerization component, for example, fluoroethylene, trifluoroethylene, chlorotrifluoroethylene, 1,2-dichloro-1,2-difluoroethylene, 2-bromo-3.
3,3-trifluoroethylene, 3-bromo-3,3-
Examples of the polymerizable monomer having a fluorine atom include difluoropropylene, 3,3,3-trifluoropropylene, 1,1,2-trichloro-3,3,3-trifluoropropylene, and α-trifluoromethacrylic acid. it can.

The fluorine-containing copolymer obtained from such a monomer composition has a fluorine content of 60 to 70.
It is necessary that the content is 60% by weight, and the preferable fluorine content is 62 to 70% by weight, particularly preferably 64 to 68% by weight.

The fluorine-containing polymer has good solubility in the solvent described below, especially when the fluorine-containing ratio is within the above-mentioned specific range. Further, by containing such a fluorine-containing polymer as a component, it has excellent adhesion to various base materials, high transparency and low refractive index, and sufficiently excellent mechanical strength. Since the thin film is formed, the mechanical properties such as scratch resistance of the surface of the base material can be made sufficiently high, which is very suitable.

This fluorine-containing copolymer has a polystyrene-reduced number average molecular weight of 5,000 to 20,000.
It is preferably 0, particularly preferably 10,000 to 100,000. By using the fluorine-containing copolymer having a molecular weight of such a size, the viscosity of the resulting fluorine-based resin composition becomes a suitable size, and therefore, the fluorine-based resin composition having surely suitable coatability. Can be

Further, the fluorine-containing copolymer has a refractive index of 1.45 or less, particularly 1.42 or less, and further 1.4 or less.
It is preferably 0 or less. When a fluorine-containing copolymer having a refractive index of more than 1.45 is used, the resulting thin film formed of the fluorine-based coating material may have a small antireflection effect.

The polymerizable compound used in the present invention is irradiated with an active energy ray in the presence or absence of a photopolymerization initiator, or heated in the presence of a thermal polymerization initiator, It is a compound having an ethylenically unsaturated group that causes addition polymerization.

As specific examples of such a polymerizable compound, for example, those described in the above-mentioned JP-A-8-94806 can be used.

Of these compounds, dipentaerythritol hexa (meth) acrylate, pentaerythritol tetra (meth) acrylate, dipentaerythritol penta (meth) acrylate, and caprolactone-modified dipentaerythritol hexa (meth) acrylate are particularly preferable.

When the polymerizable compound used contains three or more ethylenically unsaturated groups in one molecule,
The obtained fluororesin composition forms a thin film having extremely good mechanical properties such as adhesion to a substrate and scratch resistance of the surface of the substrate.

The amount of the polymerizable compound used is 30 to 150 parts by weight, preferably 35 to 100 parts by weight, particularly preferably 40 to 70 parts by weight, based on 100 parts by weight of the fluorine-containing copolymer.

If the proportion of the polymerizable compound used is too small, the thin film formed by the obtained coating material has low adhesion to the substrate, while if the proportion used is too large, a thin film formed. Has a high refractive index, making it difficult to obtain a good antireflection effect.

In the fluorine-based resin composition, the fluorine content is 30 to 55% by weight based on the total amount of the polymer-forming components including the fluorine-containing copolymer and the polymerizable compound.
It is particularly preferably 35 to 50% by weight. When these conditions are satisfied, a thin film that more sufficiently achieves the objects and effects of the present invention can be formed. A thin film formed of a fluorine-based resin composition having an excessive fluorine content tends to have low adhesion to a substrate, and mechanical properties such as scratch resistance of the surface of the substrate are slightly deteriorated. On the other hand, a thin film formed of a fluorine-based resin composition having an excessively low fluorine content tends to have a large refractive index and a low antireflection effect.

The low refractive index layer 20 of the present invention is made of a silicon-containing vinylidene fluoride polymer. Silicon and fluorine improve the surface antifouling property and scratch resistance, and the silicon is
It is possible to suppress the deterioration of the physical properties of the low refractive index layer 20 after the saponification treatment described below.

In the antiglare film 10, the low refractive index layer 20 has a fluorine content ratio obtained by copolymerizing a monomer composition containing 30 to 90% by weight of vinylidene fluoride and 5 to 50% by weight of hexafluoropropylene. Is 60-
100 parts by weight of a 70% by weight fluorine-containing copolymer,
Polymerizable compound having ethylenically unsaturated group 30-150
Since the fluorine-containing copolymer contains a monomer component of 5 to 50% by weight of hexafluoropropylene, it is formed by using a resin composition composed of 1 part by weight. In the low refractive index layer to be formed, a low refractive index of 1.45 or less can be realized, and particularly, the fluorine-containing copolymer contains 80 to 90% by weight of vinylidene fluoride as a monomer component. Therefore, the solvent solubility of the obtained resin composition is increased, the suitability for coating is improved, and the film thickness can be a thin film of 200 nm or less suitable for antireflection. Furthermore,
Since the resin composition to be applied contains 30 to 150 parts by weight of the polymerizable compound having an ethylenically unsaturated group, the resulting coating film has excellent scratch resistance and mechanical strength. Further, since each resin component has high transparency, the low refractive index layer 20 formed by using the resin composition containing these components is excellent in transparency.

In the antiglare film 10, the air layer (refractive index 1.0) and the low refractive index layer 20 (refractive index less than 1.60, preferably 1.45, from the air in contact therewith to the inside thereof.
The following), the antiglare layer 18 (refractive index 1.50 or more) and the transparent substrate film 12 (lower or almost the same refractive index as the antiglare layer 18), so that efficient antireflection can be performed. it can. It is desirable that the refractive index of the antiglare layer 18 be higher than that of the transparent substrate film 12, and in such a case, the transparent substrate film 12 and the antiglare layer 18 are formed.
The effect of preventing reflection at the interface between and is further added.

The solvent used for the low refractive index layer 20 is
From the viewpoint of the coatability of the fluororesin composition and the adhesion of the formed thin film to the substrate, the boiling point under the pressure of 760 hectopascals is preferably in the range of 50 to 200 ° C.

Specific examples of such a solvent include acetone, diethyl ketone, dipropyl ketone, methyl ethyl ketone, methyl butyl ketone, methyl isobutyl ketone, cyclohexanone, methyl formate, ethyl formate,
Propyl formate, isopropyl formate, butyl formate, methyl acetate, ethyl acetate, propyl acetate, isopropyl acetate.
Solvent consisting of ketones or carboxylic acid esters such as butyl acetate, isobutyl acetate, butyl acetate, amyl acetate, isoamyl acetate, diamyl acetate, methyl propionate, ethyl propionate, methyl butyrate, ethyl butyrate, methyl lactate, etc. Can be mentioned. These solvents may be used alone or as a mixture of two or more components, and solvents other than those exemplified above may be added within a range not impairing the performance of the resin composition.

The amount of the solvent used is usually 20 per 100 parts by weight of the total amount of the fluorine-containing copolymer and the polymerizable compound.
0 to 10000 parts by weight, preferably 1000 to 1000
0 parts by weight, particularly preferably 1200 to 4000 parts by weight.

By setting the amount of the solvent used in this range, the viscosity of the fluororesin composition is adjusted to 0.5 to 5 cps (2) at which the preferable coating property as the resin composition can be obtained.
5 ° C.), particularly in the range of 0.7 to 3 cps (25 ° C.), and as a result, the fluororesin composition provides a uniform and practically suitable antireflection film for visible light. It is possible to easily form a thin film having a thickness of 100 to 200 nm without coating unevenness, and it is possible to form a thin film having particularly excellent adhesion to a substrate.

The fluorine-based resin composition used for the optical functional film of the present invention is one which is cured by the polymerization reaction of the ethylenically unsaturated group of the polymerizable compound contained therein. The coating film formed by applying the substance is subjected to a curing treatment for polymerizing the polymerizable compound to form a solid thin film.

As means for such a curing treatment, means for irradiating the coating film of the fluorine-based resin composition with active energy rays or means for heating the coating film is utilized, which is the object of the present invention. Since a cured thin film can be formed reliably and easily, it is extremely advantageous in practice and convenient in terms of a thin film forming operation.

When the fluororesin composition used for the optical functional film of the present invention is cured by irradiation with active energy rays, when an electron beam is used as the active energy rays, the fluororesin composition is The desired curing treatment can be carried out without adding a polymerization initiator.

When a ray such as an ultraviolet ray or a visible ray is used as the active energy ray for the curing treatment, it is decomposed by being irradiated with the active energy ray.
For example, a photopolymerization initiator that generates radicals and thereby initiates the polymerization reaction of the polymerizable compound is added to the fluororesin composition.

Specific examples of such a photopolymerization initiator are disclosed in the above-mentioned JP-A-8-94806, and 1-hydroxyl cyclohexyl phenyl ketone and 2-methyl-1- [4- (methylthio) phenyl are used. ] -2-morpholinoproban-1-one, 2- (dimethylamino) -1-
[4- (morpholinyl) phenyl] -2-phenylrotyl) -1-butanone and the like are preferable.

Further, when a heating means is used for the curing treatment, a thermal polymerization initiator which generates radicals to start the polymerization of the polymerizable compound by heating is added to the fluorine resin composition. It

Specific examples of the thermal polymerization initiator include benzoyl peroxide, tert-butyl-oxybenzoate, azobisisobutyronitrile, acetyl peroxide, lauryl peroxide, tert-butyl peracetate and cumyl peroxide. , Tert
-Butyl peroxide, tert-butyl hydroperoxide, 2,2'-azobis (2,4-dimethylvaleronitrile), 2,2'-azobis (4-methoxy-2,4-dimethylvaleronitrile) and the like. be able to.

The addition amount of the photopolymerization initiator or the thermal polymerization initiator in the fluorine resin composition is usually 100 parts by weight based on 100 parts by weight of the fluorine-containing copolymer and the polymerizable compound.
0.5 to 10 parts by weight, preferably 1 to 8 parts by weight, particularly preferably 1 to 3 parts by weight. If the amount added exceeds 10 parts by weight, the handling of the resin composition and the mechanical strength of the formed thin film may be adversely affected.
If the amount added is less than 0.5 part by weight, the curing rate will be low.

If necessary, various additives such as amine compounds such as triethanolamine, methyldiethanolamine, triethylamine, diethylamine, etc. may be added to the fluorine-based resin composition as long as the objects and effects of the present invention are not impaired. Compound sensitizer or polymerization accelerator; epoxy resin, polyamide, polyamideimide, polyurethane, polybutadiene, polychloroprene, polyether, polyester, styrene-butadiene styrene block copolymer, petroleum resin, xylene resin, ketone resin, Polymers such as silicone-based oligomers and polysulfide-based oligomers, or oligomers;
Phenothiazine, 2,6-di-tert-butyl-4-
Polymerization inhibitor such as methylphenol; In addition, leveling agents, leak improvers, surfactants, plasticizers, UV absorbers, silane coupling agents, inorganic fillers, resin particles, pigments, dyes, etc. may be added. it can.

Although the antireflection effect of the low refractive index layer has been described above, the low refractive index layer also has the effect of providing a high black density and a high contrast, and the preferred embodiment is the same as described above. .

The low refractive index layer 20 can be formed by other general thin film forming means such as vacuum deposition method, sputtering method, reactive sputtering method, ion plating method and electroplating method. It may be present, for example, a coating film of an antireflection coating other than the above, an ultrathin film of MgF2 or the like with a film thickness of about 0.1 μm, a metal vapor deposition film, or SiOx.
Alternatively, it may be formed by a vapor deposition film of MgF2.

As described above, when the transparent resin 16 having a refractive index satisfying the expression (1) cannot be obtained with respect to the refractive index of the material of the selected low refractive index layer 20, this transparent resin 16 is used. Fine particles such as TiO2 having a high refractive index as described above are added to the optical resin to raise the refractive index for adjustment.

The antiglare film 10 of FIG. 1 is provided with a low refractive index layer, but the present invention is not limited to this, and the second embodiment of the embodiment shown in FIG. The low refractive index layer may not be provided as in the example antiglare film 10A.

Further, as in the antiglare film 10B of the third example of the embodiment shown in FIG. 3, the low refractive index layer 20 and the adhesive layer 2 are provided.
2, the separator 24 may be provided.

The adhesive layer 22 provided on the opposite side of the transparent base film 12 from the antiglare layer 18 is the antiglare film 1
0 is used, for example, when it is attached to a liquid crystal panel, and the exposed adhesive layer 22 with the separator 24 peeled off
The antiglare film 10 can be attached by pressing against the liquid crystal panel or the like.

Further, as in the antiglare film 10C of the fourth example of the embodiment shown in FIG. 4, a transparent conductive layer 26 is provided between the transparent base film 12 and the antiglare layer 18, and ,
By configuring the antiglare layer 18 to further contain the conductive material 27, antistatic performance can be imparted. This antistatic performance can be imparted to all antiglare films (including a polarizing element and an antiglare film in a display device described later) in the examples of the respective embodiments of the present invention by providing a transparent conductive layer.

The transparent conductive layer 26 is made by dispersing conductive fine particles in a resin composition, and as the conductive fine particles,
For example, an antimony-doped indium tin oxide (hereinafter referred to as ATO), indium tin oxide (ITO), organic compound fine particles surface-treated with gold and / or nickel, or the like may be used as the resin composition in the alkyd resin. , A (meth) acrylate of a polyfunctional compound such as polyhydric alcohol (hereinafter, acrylate and methacrylate are referred to as (meth) acrylate), and an oligomer or prepolymer such as a reactive diluent. It can be used in a large amount.

As the conductive material 27 contained in the antiglare layer 18, particles surface-treated with gold and / or nickel can be used. The particles before such surface treatment can be selected from the group consisting of silica, carbon black, metal particles and resin particles.

The antiglare films 10A, 10 shown in FIGS.
In B and 10C, the other constitution is the antiglare film 10
Since it is the same as the above, the same reference numerals are given to the same portions and the description thereof will be omitted.

Next, a first example of the embodiment of the present invention relating to the polarizing element shown in FIG. 5 will be described.

As shown in FIG. 5, the polarizing element 30 according to the example of this embodiment is an antiglare film 10D similar to the antiglare film 10 and a transparent substrate film with the antiglare film 10D. Antiglare layer 1 of TAC film 34A
8 and a polarizing film 32 laminated on the opposite surface. This polarizing film 32 is polyvinyl alcohol (PVA)
It consists of a stretched film with iodine and dye added to it.

Further, a TAC film 34B is provided below the polarizing film 32 in FIG.

The polarizing plate 40 is constructed with the polarizing film 32 sandwiched between the TAC film 34B and the TAC film 34A.

Since TAC as the transparent base material does not have birefringence and the polarized light is not disturbed, PVA and P as the polarizing element are used.
When laminated with VA + iodine film, the polarization is not disturbed. Therefore, a liquid crystal display device having excellent display quality can be obtained by using such a polarizing element 30.

As the polarizing material forming the polarizing film 32 as described above, in addition to the PVA film described above, a polyvinyl formal film, a polyvinyl acetal film,
It may be composed of a saponified film of ethylene-vinyl acetate copolymer.

Further, as shown in FIG. 6, the polarizing element 30A is obtained by removing the low refractive index layer from the polarizing element 30, or as shown in FIG. 7, the low refractive index layer 20, the adhesive layer 22, The polarizing element 30B provided with the separator 24 may be used.

The polarizing film 32 and the TAC film 34
When laminating A and 34B, it is preferable to perform saponification treatment on the TAC film in order to increase adhesiveness and prevent static electricity. By such saponification, the surfaces of the TAC films 34A and 34B are made hydrophilic and the adhesiveness to the PVA film is improved.

When the TAC film is subjected to saponification treatment, when a thin film of SiOx, for example, is used as the material of the low refractive index layer 20, there is a problem in terms of antifouling property and saponification resistance, but in this case, After saponifying the light-antiglare layer 18, S
It is preferable that the low refractive index layer 20 is formed by iOx vacuum evaporation or sputtering, and the antifouling material layer is formed thereon.

Next, an example of an embodiment in which the display device according to the present invention shown in FIGS. 8 to 10 is applied to a liquid crystal display device will be described.

In the liquid crystal display device 70 shown in FIG. 8, the polarizing element 30, the liquid crystal panel 74 and the polarizing plate 50 are laminated in this order, and the backlight 78 is arranged on the back surface of the polarizing plate 50 side. It is a transmissive liquid crystal display device. As the polarizing plate 50, a polarizing plate used in a normal liquid crystal display device can be used.

FIG. 9 shows an external reflection plate type reflective liquid crystal display device 80 to which the present invention is applied. In this liquid crystal display device 80, instead of the backlight in the liquid crystal display device 70, a reflection plate 82 is attached in close contact with the polarizing plate 50.
Is arranged.

FIG. 10 shows an internal reflection electrode type reflection type liquid crystal display device 90 to which the present invention is applied. In this liquid crystal display device 90, a reflective electrode 94 also serving as an electrode of a reflective plate is arranged in a liquid crystal panel 74 and a liquid crystal cell 92, and the polarizing plate 50 and the reflective plate 82 in the liquid crystal display device 80 of FIG. 10 are provided. Has not been done.

The liquid crystal modes used in the liquid crystal panel 74 in the liquid crystal display devices 70, 80 and 90 include twist nematic type (TN), super twist nematic type (STN), guest-host type (GH), and phase transition. Any of a type (PC) and a polymer dispersion type (PDLC) may be used.

Further, the liquid crystal drive mode may be either a simple matrix type or an active matrix type. In the case of the active matrix type, a driving system such as TFT or MIM is adopted.

Further, the liquid crystal panel 74 may be either a color type or a monochrome type.

Furthermore, the present invention can be applied to display devices other than liquid crystal display devices, such as plasma display devices and CRT display devices.

[0116]

EXAMPLES Next, examples of the present invention will be described.

Table 1 shows the results of observing the antiglare films of Examples 1 to 6 according to the present invention and Comparative Examples 1 to 10 according to the prior art and low refractive index layers (Examples 3 to 6 and Comparative Examples). Nos. 6 to 10 indicate evaluation of saponification resistance (without low refractive index layer). In addition, Example 7 (described later) is not described in Table 1.

[0118]

[Table 1]

From Table 1, it can be seen that when the surface haze value is small, the reflectance is large and the reflection is large, and when the internal haze value is small, surface glare is likely to occur.

Further, it can be seen that when the surface haze value is large, and when the sum of the surface haze value and the internal haze value is large, the black density decreases and becomes whitish. If the black density decreases, the contrast decreases.

As a result of the examples of Table 1 above and other experiments by the present inventors, when the surface haze value hs of the antiglare layer was 7 <hs <30 and the internal haze value hi was 1 <hi <15, Gila,
There was no reflection, the black density was good, and the contrast was high.

Furthermore, it was confirmed that when the sum of the surface haze value and the internal haze value exceeds 30, the black density decreases and the image becomes whitish.

Further, by providing the low refractive index layer on the surface, the black density is made good, the contrast is high, and the antireflection effect is also obtained.

Table 2 shows the operating conditions of Examples 1 and 2.

[0125]

[Table 2]

PETA in Table 2 is pentaerythritol triacrylate, CAP is cellulose acetate propionate, and 10% CAP in Table 2 means that the polymer content is 10% when diluted with ethyl acetate. The same applies to "10%" in vinylidene fluoride containing 10% silicon and 10% DPHA.

DPHA is dipentaerythritol hexaacrylate, which is a solvent M for diluting it.
IBK indicates methyl isobutyl ketone.

P / V is a filler / binder and is a styrene bead paste (trade name SX-130H).
Means a paste in which styrene beads and PETA are 4: 6, and the bead content is 40%.

In Table 1, the contact angle means the angle between the tangent line of the water droplet on the surface of the low refractive index layer and the surface of the low refractive index layer, the initial steel wool and the steel wool in saponification resistance. The purpose of this test is to confirm the hard coat property on the surface of the low refractive index layer. The surface is rubbed 20 times with a load of 200 g using # 0000 steel wool, and the presence or absence of flaws on the surface and changes in optical properties are observed.

In the saponification test, the antiglare film was 60
The test piece is immersed in an alkaline solution (2N NaOH) at 1 ° C. for 1 minute, then taken out, and washed with washing water.

Further, in Table 1, the haze value is measured by a measuring instrument of Murakami Color Research Laboratory, product number HR-100, and the reflectance is a spectroscopic reflectance measuring instrument MPC manufactured by Shimadzu Corporation.
-3100, and the average reflectance at a wavelength of 380 to 780 nm was taken.

Further, the contact angle was measured with a contact angle measuring machine Model G1 manufactured by Elma Co., using pure water.

Further, the evaluation of the surface glare is evaluated by the backlight (HA
On KUBA LIGHTBOX45), a staggered color filter (pitch 150 μm) is installed, and it is attached at a position 160 μm away from the color filter surface with the antiglare film-treated surface facing upwards, and a surface glare state is obtained. It was evaluated visually.

The black density was evaluated by black insulating vinyl tape (made by Yamato, width 37.5 m) on the back surface of the antiglare film.
m) was attached as a test piece, and the film surface was observed under a fluorescent lamp. Furthermore, this test piece was used for Kollmorgen Instruments.
It was measured with a Macbeth RD918 manufactured by ts Corporation.
Similarly, a transparent substrate film having a black vinyl tape on the back side was measured, and this value was used as a reference, that is, a black density of 100% (for example, 2.28 in the case of TAC), whereas the measured value of the test piece was 85. The case of% or more was regarded as good.

Regarding the reflection, an antiglare film was attached to the polarizing plate, the back was blackened with crossed Nicols, and the presence or absence of reflection of the fluorescent lamp was checked.

The method for producing the antiglare film in Examples 1 and 2 is as follows.

First, the material for the antiglare layer obtained under the conditions of Table 2 was applied on a TAC substrate and dried at 60 ° C. for 1 minute, and then UV.
90 mJ of light (ultraviolet light) is irradiated and half-cured to form an antiglare layer having a film thickness of 3 to 4 μm / m 2.

Next, the materials for the low refractive index layer shown in Table 2 were coated on the obtained antiglare layer, dried at 80 ° C. for 1 minute, and irradiated with UV light at 500 mJ under a nitrogen purge,
Completely cure with the antiglare layer. At this time, the film thickness of the low refractive index layer is 0.1 μm / m 2.

Here, the surface haze value and the internal haze value in the antiglare layer are mainly the P / V ratio in Table 2,
It can be appropriately selected depending on the difference in refractive index between P and V, the type of solvent, and the like.

Next, a third embodiment will be described.

In Example 3, an antiglare layer similar to that of Example 1 was formed, and after saponification treatment, SiO 2 was used as a low refractive index layer.
2 A film is formed by vapor deposition to have a film thickness of 0.1 μm, and an antifouling layer is further provided thereon. The deposition conditions for SiO2 are as follows: vacuum degree 4 × 10 -5 Torr, voltage 8 KV, current 20.
~ 40 mA.

Further, the antifouling layer is formed of a fluorine-based solvent PF5080.
KP diluted to 0.007% with (trade name: 3M)
-801M (trade name; manufactured by Shin-Etsu Chemical Co., Ltd.) was applied and dried at 80 ° C for 1 minute to form an antifouling layer having a film thickness of about 5 nm.

In Examples 4 to 6, the low refractive index layer in Examples 1 to 3 was omitted, and therefore no saponification treatment was performed.

Next, a seventh embodiment will be described.

Although not shown in Table 1, a manufacturing method for Example 7 in which the transparent conductive layer 26 and the conductive material 27 are provided as shown in FIG. 4 will be described.

First, the material of the transparent conductive layer is coated on the TAC substrate so as to have a film thickness of 2 μm / m 2.
After drying for 1 minute at ℃, UV (ultraviolet) light 54 under nitrogen purge
Irradiate mJ and perform half cure. DA-12 (ATO-containing conductive ink: manufactured by Sumitomo Osaka Cement) was used as the material of the transparent conductive layer. Next, the material of the antiglare layer was coated on the transparent conductive layer so as to have a film thickness of 3 to 4 μm / m 2, dried at 60 ° C. for 1 minute, and then exposed to UV light 9 under a nitrogen purge.
Irradiate 0 mJ and perform half cure. The material of the antiglare layer is
The conductive material Bright GNR4, 6 was used as the material used in Example 1.
-EH (gold-nickel-coated resin beads: manufactured by Nippon Kagaku Kogyo) was added in an amount of 0.005 g. Further, the material of the low refractive index layer shown in Table 2 is applied on the antiglare layer,
After drying for 1 minute at 80 ℃, UV light 500m under nitrogen purge
Irradiate with J to cure completely with the transparent conductive layer and the antiglare layer.

In Comparative Example 1, as the material of the antiglare layer, 2.27 g of PETA shown in Table 2 was used, the beads were 0.2 μg of silica beads having a particle size of 1 μm and a refractive index n = 1.45, and the other conditions were Same as Example 2 above.

The low refractive index layer in Comparative Example 1 was the same as that in Example 2, and the manufacturing method was also in Examples 1 and 2.
Same as.

Next, Comparative Example 2 will be described.

Comparative Example 2 has the same P value as in Table 2 above.
ETA 13.50 g, styrene bead paste same as in Example 1 10% CAP 13.3 g, solvent (toluene, butyl acetate, isobutyl alcohol) 36.8
g, the same photo-curing initiator as in Examples 1 and 2 was 0.3.
It was 99 g.

Regarding the low refractive index layer, the same conditions as in Example 1 and the manufacturing method are the same as in Examples 1 and 2.

Next, Comparative Example 3 will be described.

The material for the antiglare layer in Comparative Example 3 was the same as in Example 1, 10 g of PETA, 5 g of 10% CAP, 20 g of solvent (toluene, butyl acetate, isobutyl alcohol), and the same light as in Example 1. The curing initiator was 0.3 g.

Mat PET (trade name E130; made by Diamond Foil) was used as the patterning film, and the material of the low refractive index layer was the same as in Example 1.

In the manufacturing method, first, the material of the antiglare layer is TAC.
A base material is coated to a film thickness of 3 to 4 μm / m 2, laminated with the matte PET, and then half-cured with UV light of 150 mJ.

Next, the matte PET was peeled off to form fine irregularities on the antiglare layer, and the low refractive index layer material was formed to a film thickness of 0.
Coat to 1 μm / m 2 and apply at 80 ° C for 1
After drying for a minute, UV light of 500 mJ is irradiated under a nitrogen purge to completely cure the antiglare layer.

Next, Comparative Example 4 will be described.

In Comparative Example 4, the solvent for the antiglare layer in Example 2 was changed to ethyl acetate and anone, and all other conditions were the same as in Example 1.

Next, Comparative Example 5 will be described.

Comparative Example 5 is the same as Example 1 except that the solvent in Example 1 was changed to MIBK for the antiglare layer material, and the low refractive index layer and the manufacturing method were also the same as in Example 1. And

Comparative Examples 6 to 10 are obtained by removing the low refractive index layer in Comparative Examples 1 to 5.

Next, Example 2 and Comparative Example 1 shown in Table 3
The comparison of the effect of saponification in No. 1 will be described.

[0163]

[Table 3]

The antiglare layer in Comparative Example 11 was subjected to the same conditions as in Example 2, and the low refractive index layer was a fluorine-containing low refractive index polymer containing no silicon (product number, TM005; J
SR) and the manufacturing method is the same as in Examples 1 and 2. In Example 2, a silicon-containing fluorine-based low-refractive-index polymer is used in the low-refractive-index layer, and as can be seen from Table 3, there is a clear difference in the hardness after saponification.

Table 4 compares the antistatic performance of Example 7 with that of Example 1. From Table 4, the other performances of Example 7 are equivalent to those of Example 1, and the surface resistance value (Ω /
It can be seen that □) has a small value.

[0166]

[Table 4]

[0167]

EFFECTS OF THE INVENTION Since the present invention is configured as described above, it has an excellent effect that when it is attached to the surface of a display panel, it is possible to suppress the deterioration of contrast and prevent glare, glare and whitening. Have.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an antiglare film according to a first example of an embodiment of the present invention.

FIG. 2 is a sectional view showing an antiglare film according to the second example.

FIG. 3 is a sectional view showing an antiglare film according to the third example.

FIG. 4 is a sectional view showing an antiglare film according to the fourth example.

FIG. 5 is a cross-sectional view showing a first example of an embodiment of the present invention related to a polarizing element.

FIG. 6 is a sectional view showing a polarizing element according to the second example.

FIG. 7 is a sectional view showing a polarizing element according to the third example.

FIG. 8 is a sectional view showing a first example of an embodiment in which the display device of the present invention is a liquid crystal display device.

FIG. 9 is a sectional view showing the second example.

FIG. 10 is a sectional view showing the third example.

[Explanation of symbols]

10, 10A, 10B, 10C, 10D ... Anti-glare film 12 ... Transparent base film 14 ... Translucent diffuser 16 ... Translucent resin 18 ... Antiglare layer 20 ... Low refractive index layer 22 ... Adhesive layer 26 ... Transparent conductive layer 27 ... Conductive material 30, 30A, 30B ... Polarizing element 32 ... Polarizing film 34A, 34B ... TAC film 40, 50 ... Polarizing plate 70, 80, 90 ... Liquid crystal display device 74 ... Liquid crystal panel

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI G02F 1/1335 G02F 1/1335 // B29K 1:00 B29K 1:00 67:00 67:00 (58) Fields surveyed (Int .Cl. ⁷ , DB name) G02B 5/02 B29D 11/00 B32B 7/02 103 B32B 27/30 G02B 5/30 G02F 1/1335 B29K 1:00 B29K 67:00

Claims (16)

(57) [Claims] 1. An antiglare layer made of a translucent resin containing translucent diffusing agents having different refractive indexes is laminated on at least one surface of a transparent substrate film, and the surface of the antiglare layer has surface irregularities. An antiglare film having a haze value hs of 7 <hs <30 and an internal haze value hi of 1 <hi <15 due to internal diffusion of the antiglare layer. 2. The antiglare film according to claim 1, further comprising a low refractive index layer having a refractive index lower than that of the antiglare layer laminated on the antiglare layer. 3. The antiglare film according to claim 1, wherein the low refractive index layer is formed of a silicon-containing vinylidene fluoride copolymer. 4. The silicon-containing vinylidene fluoride copolymer according to claim 3, wherein the vinylidene fluoride-copolymer is a copolymer of vinylidene fluoride and hexafluoropropylene, and the fluorine-containing copolymer has a fluorine content of 60 to 70% by weight. An antiglare film, which is a polymer of a polymer and a polymerizable compound having an ethylenically unsaturated group. 5. The active energy ray according to claim 4, wherein the low refractive index layer is coated with a coating film composed of at least the fluorine-containing copolymer and the polymerizable compound having an ethylenically unsaturated group. An antiglare film, which is formed by irradiating or heating. 6. The antiglare film according to claim 2, wherein the low refractive index layer is formed of a silicon oxide film, and an antifouling layer is further formed thereon. 7. The sum of the haze value hs on the surface irregularities of the antiglare layer and the internal haze value hi due to internal diffusion of the antiglare layer is set to 30 or less according to any one of claims 1 to 5. An anti-glare film characterized in that 8. The difference Δn in refractive index between the light-transmitting resin and the light-transmitting diffuser in the antiglare layer is set to 0.01 ≦ Δn ≦ 0.5 according to any one of claims 1 to 7. At the same time, the average particle diameter d of the translucent diffusing agent is set to 0.1 μm ≦ d ≦ 5 μm. 9. The light transmissive resin according to claim 1, wherein the light transmissive resin is at least one of a thermosetting resin and an ionizing radiation curable resin, and the light transmissive diffusing agent is organic fine particles. An anti-glare film characterized in that 10. The antiglare film according to claim 9, wherein the organic fine particles are styrene beads. 11. The method according to any one of claims 1 to 10,
An antiglare film, characterized in that the transparent substrate film is composed of one of a triacetate cellulose film and a polyethylene terephthalate film. 12. The method according to any one of claims 1 to 11,
An antiglare film having a transparent conductive layer between a transparent substrate film and an antiglare layer, and containing a conductive material in the antiglare layer. 13. An antiglare film according to any one of claims 1 to 12, and a polarizing plate laminated with the surface of the transparent base film of the antiglare film facing away from the antiglare layer. A polarizing element comprising: 14. The surface of the transparent substrate film opposite to the antiglare layer and the surface of the antiglare layer of the transparent substrate film are subjected to saponification treatment, and then a polarizing plate is provided on the surface of the transparent substrate film. A polarizing element characterized by being laminated. 15. A display panel having a plurality of pixels, each pixel transmitting or reflecting light to form an image, and a display panel provided on the display surface side of the display panel. And an antiglare film according to any one of 1. 16. A display panel having a plurality of pixels, each pixel transmitting light or reflecting light to form an image, and the display panel provided on the display surface side of the display panel.
Or a polarizing element of 14.