WO1995031737A1 - Glare-proof film - Google Patents

Abstract

The invention is directed to improving an optical property of a glare-proof film used for surfaces of various displays in word processors, computers, televisions, dashboards for automobiles, and the like, and making screen surfaces easier to see. The glare-proof film for display comprises a transparent film, and an ionizing radiation curing type resin layer provided on the transparent film and having optical characteristics including a full-light transmissivity of 85 % or more, a haze degree of 3.0 to 35 % and a sixty degree glossiness of 90 % or less, and a surface roughness which includes a surface center line average roughness of 0.05 to 0.6 νm and a surface irregularity pitch of 5 to 200 νm.

Description

 Description of anti-glare film Description of the invention

 The present invention relates to a liquid crystal display, such as various displays such as a warp, a computer, a television, an in-vehicle instrument panel, and the like.

For a type with a light source behind the screen, such as a CRT display, it relates to a scratch-resistant and glare-proof film used especially for the surface of a high-definition display. It is something.

 The finolem used on the surface of the display is located on the outermost surface of the display, so it can be touched directly by hand or sprayed with synthetic detergent. First, they may be wiped with various chemicals or exposed to sunlight, so the base finolem may have scratch resistance, chemical resistance, weather resistance, etc. Certain codes are applied to grant. In addition, in order to make the screen displayed on the display easier to see, it is necessary to satisfy the antiglare properties and other required performances as follows. Various types of processing or processing are being performed.

For example, as disclosed in Japanese Patent Application Laid-Open No. 59-151110, a concave-convex shape is formed on the surface or a matting agent is applied to a hard coat. It is known that an anti-glare effect is imparted by being mixed. With these methods, it is possible to reduce the glossiness by 60 degrees by increasing the haze. However, on the contrary, this method has a strong effect of lowering the total light transmittance and the screen resolution.

 In addition, since it is used for a color display for TET, it is intended to provide a high-precision, high-haze, low-dross antiglare effect. A method of adding a large amount of a fine powder of a light diffusing agent to an anti-glare film has been proposed. However, when the amount of the light diffusing agent added increases, the coating aptitude decreases, and as a result, streaks are generated on the coating surface, and the yield is increased. The problem is that the weight is reduced. Further, when such an anti-glare film is applied to a polarizing plate, there is a problem that the quality of the polarizing plate is reduced.

 Disclosure of the invention

 The present invention provides a method for displaying images on a display surface without observing dazzling, displaying displayed characters and other images at a high resolution. The purpose is to provide an anti-glare film that also makes the trust clear.

In order to achieve the above-mentioned object, an anti-glare film according to the present invention comprises a transparent film and an all-optical line provided on the transparent film. It has an optical characteristic of a transmittance of 85% or more, a haze of 3.0 to 35%, a gloss of 60 degrees and a gloss of 90% or less, and a surface center line average roughness of 0.05. 00.6 iz m, characterized in that the surface is formed from an ionizing radiation curable resin layer having a surface roughness of 5 to 200 m. BRIEF DESCRIPTION OF THE FIGURES

 FIG. 1 is a schematic sectional view showing an embodiment of the present invention.

 FIG. 2 is a conceptual diagram showing the reflection and transmission of light with respect to the antiglare film of the present invention.

 FIG. 3 is a schematic cross-sectional view showing an example of a case where the anti-glare film of the present invention is manufactured.

 FIG. 4A is a schematic cross-sectional view showing an example of the film base material that has been matted.

 FIG. 4B is a cross-sectional view of a shaped film obtained by applying resin to a shaped film base material.

 FIG. 5 is an explanatory diagram showing a process in the case of manufacturing an anti-glare film.

 FIG. 5A is a cross-sectional view of a shaped film obtained by applying a resin to a shaped film substrate.

 FIG. 5B is a cross-sectional view of a laminated film in which an ionizing radiation-curable resin before curing is formed on an antiglare film substrate.

 FIG. 5C is a cross-sectional view of a laminated sheet obtained by laminating the shaped film of FIG. 5A on the laminated film of FIG. 5B.

 Fig. 5D shows the laminated film of Fig. 5C irradiated with ionizing radiation to cure the ionizing radiation-curable resin layer and then exfoliated when the molded film was peeled off. Sectional view of the glare film.

 FIG. 6A is a cross-sectional view of a molding film coated with a resin to which fine silica particles are added.

Figure 6B was made using the shaped film of Figure 6A Sectional view of the anti-glare film.

 FIG. 7 is a diagram showing an example of a coating apparatus used for applying the ionizing radiation-curable resin composition.

 FIGS. 8 and 9 are cross-sectional views of a polarizing plate to which the anti-glare film of the present invention is applied.

 FIGS. 10 to 11 are cross-sectional views each showing a specific example of a polarizing plate to which a moisture-proof sheet is applied.

 FIGS. 12A to 12D are cross-sectional views each showing a specific example of a liquid crystal cell to which the polarizing plate of the present invention is applied.

BEST MODE FOR CARRYING OUT THE INVENTION The anti-glare film according to the present invention comprises a transparent film and a total light transmitting film provided on the transparent film. It has optical characteristics of 85% or more, haze of 3.0 to 35%, and 60% of gloss of 90% or less, and has a surface centerline average roughness of 0.05 to 0.5%. pitch between 6 beta m _N surface unevenness that features a 5 to 2 0 0 ^ Table roughness der Ru this ionizing radiation-curable resin layer or et ing of um.

 The higher the total light transmittance, the higher the display becomes clear and the better the display is. However, in the present invention, if the total light transmittance is 85% or more, practically And found that it can be used without any problems.

The haze is required to be in the range of 3.0 to 35% to obtain a good screen. If the haze exceeds the upper limit of the above range, the display screen looks whitish, whereas if the haze is less than the lower limit, the gloss increases and the anti-glare effect does not exist. You Decrease.

 The 60-degree gloss is a value defined by the reflection of light incident on the screen from the outside.If the value exceeds 90%, the glare will increase. The numerical range of the pitch between the surface irregularities and the surface roughness, which does not conform to the purpose of the present invention, is the above-mentioned total light transmittance, haze degree and 60 degrees. This is a necessary condition in the present invention for obtaining appropriate physical properties of glossiness.

 The above 60 degree glossiness can be measured based on the method specified in JISZ8741, and as shown in Fig. 2, the angle of incidence on the uneven surface 2 is as shown in Fig. 2. The light P 0 is applied at 60 degrees, and the light receiving rate of the reflected light P 1 is a value expressed in%. On the other hand, the total light transmittance can be measured based on the method specified in JISK 6714, and as shown in Fig. 2, the reflected light Q0 This is a value in which the light reception rate of the light Q 1 transmitted through the light is expressed in%.

In the present invention, as an anti-glare film particularly suitable for a display for high definition, among the above surface characteristics, the surface center average roughness is set to 0. It is preferable to control in the range of .05 to .4 // m, and more preferably in the range of .05 to .25. In here, the term "high-definition", also the number of pixels per unit area equivalent Ri is increased, you can, for example, diagonal 2 6 cm Roh, and have you ^to-zero value zone Les, 6 4 0 X A pixel whose 480 pixels have been further increased to 800 000 pixels. As a transparent film, for example, a polarizing plate is mainly used.

TAC (triacetyl cellulose film) having a thickness of about 80 is widely used, but other known transparent plastic films are also used. It can be used by appropriately selecting from the film. Examples of the transparent plastic film include the following. Polyester film, Polyethylene film, Polypropylene film, Polyvinyl chloride film, Assay Polyethylene film, Polystyrene film, Polycarbonate film Polymetal film Innolem, Polyphonic Innolem, etc.

 As the resin for forming the hard coat layer, an acrylurethane-based ionizing radiation-curable resin or the like is widely used. Select a resin that has the property of being cured by UV * EB and adheres to the TAC, and is durable.

AL ~ i

When manufacturing anti-reflection films with high haze, the light diffuser used is 0.5 to 5 / m silica beads. Norwegian is mainly used. In the case of a transparent resin that does not contain any light diffusing agent, all of the light diffusing agent imparts an optical function to the light diffusing agent. In some cases, glare may occur, and in order to prevent this, it is desirable to mix the light diffusing agent to such an extent that coating aptitude is not lost. Also, the light diffusing agent is ionized radiation-curable resin When kneading to a fat, the light diffusing agent is kneaded in an organic resin to coat the surface of the light diffusing agent, thereby ensuring transparency and ensuring wettability. I do .

 The light diffusing agent that has been subjected to the organic coating treatment is dispersed in the ionizing radiation-curable resin, and its content is relative to 120 parts of the ionizing radiation-curable resin. Preferably, the light diffusing agent is 10 parts by weight or less.

 Furthermore, the fact that this light diffusing agent exhibits good properties is effective in limiting its particle size, and it is effective for organic coating silica. The beads having a particle size of 0.5 to 5 m showed an excellent effect.

 In the present invention, the ionizing radiation-curable resin used is not particularly limited as long as it is a resin that is hardened by ionizing radiation, which is so-called UV * EB or the like. It is not something that will be done. UV-curable resins used with photosensitizers include UV-curable acrylic resin and UV-curable polyester clear. Resin, ultraviolet curable epoxy resin, etc.

For example, UV-curable acrylic urethane-based resin can be used in a polystyrene polyol with an isolated mono- or pre-polymer. The resulting product is reacted with an acrylic or metadarylate-based monomer having a hydroxyl group. Is obtained. Examples of the photopolymerization initiator include a benzophenone derivative, an acetate pentanone derivative, An anthraquinone derivative or the like can be used alone or in combination.

 In this ionizing radiation-curable resin, a component that further improves the film formation, for example, an acrylic resin may be appropriately selected and combined. In addition, a viscosity modifier, a solvent, etc. are blended to make a coating liquid.

 The coating of the ionizing radiation-curable resin for forming a film of the liquid composition containing the ionizing radiation-curable resin as a main component on a base film as described above. General means such as roll coating, lean coating, gravure coating, and slot-relief coating are used as the means of coating. Depending on the coating method, it can be implemented c

Co over DOO amount of the coating amount after removal of the solvent, 1 ~ 2 0 g / m 2, good or to rather is Ru Ah in ^{5 ~ 1 5 g Z m 2} .

 Next, the steps of the present invention will be described. After coating the transparent film with the coating liquid containing ionizing radiation-curable resin as a main component and drying the solvent, the coating has flexibility and at least one side thereof. The imprint film with fine irregularities is placed on the dried coat surface, the concave and convex surfaces are superimposed, and the transparent film is passed through the imprint film or the imprint film. After irradiating ultraviolet rays through the film to cure the ionizing radiation-curable resin, the shaping film is peeled off, and the concavities and convexities are transferred to the surface of the coating layer. .

The above coating liquid is applied to the concave and convex surfaces of the shaping film. Alternatively, after the solvent of the coating solution is dried as in the above, the transparent film is overlaid, and the ultraviolet curing and the exfoliation of the molding film are performed in the same manner as described above.

 The performance of the film thus obtained as a scratch-resistant and anti-glare film is within the range of the following physical property values, and is extremely high in practical use. It is useful.

Further, in the present invention, an anti-reflection layer made of a metal compound is further formed on the surface of the ionizing radiation-curable resin layer, whereby the anti-glare film is formed. The optical properties can be further improved. Is the Yo will Do the anti-reflection layer of this, was example, _{if, A 1 o 0 3, Z} n 0 0 All good beauty M g F o, etc. obtained deposited layer Re et al. Have use of metallic compound of . For example, A l ₂ 〇 ₃ about 1 4 0 0 on-grayed be sampled ROHM, Z n 0 _o about 2 8 0 0 on-grayed be sampled _{ROHM, M g F 2 1 4 0} 0 An anti-reflection layer can also be provided by sequentially providing a vapor deposition layer of an Angstrom.

Use of shaping film

 Next, a description will be given of another embodiment for bringing the film surface into a desired state in obtaining the above-mentioned present invention.

In other words, in this embodiment, the surface of the imprinted film is made to have a desired unevenness by coating the resin more on the imprinted film. The shape makes it possible to obtain an anti-glare finole with low haze loss, high anti-glare effect, and excellent scratch and chemical resistance. Wear . In other words, in this method, a resin is applied to a matt film having an uneven shape on the film surface, and the film surface is formed into a desired uneven shape. An improved shaped film is formed on the base material film, and the ionizing radiation-curable resin layer formed on the base film is formed into an irregular shape by using the shaped film. An irregular shape is formed on the film surface.

 In still another embodiment, a resin is applied to a matted film having an uneven shape on the film surface, and the film surface is formed into a desired uneven shape. After the improvement, the shaping film is laminated on the surface of the substrate film coated with the ionizing radiation-curable resin, which is coated with the ionizing radiation-curable resin, and the shaping of the laminated film is performed. After the ionizing radiation curable resin is cured by irradiating ionizing radiation from the sheet side or the base material side, the shaping film is peeled off, and the prescribed anti-glare film is removed. Can be obtained.

 Next, in the above-mentioned production method, the shaped film coated with the resin is applied to a matteich film by a transparent resin or a particle size.

0.5 to; L 0 // m is a shaped film formed by coating a resin to which fine particles of m are added to form an uneven shape, and the ionizing radiation curable resin is made of ultraviolet light. It is a curable resin, and the ionizing radiation may be ultraviolet light.

Further, the surface roughness of the shaped film is preferably center line average roughness (R a) of 0.1 to: L 0 m. Then, in the above manufacturing method, after exfoliating the imprinting film, it is irradiated again with ionizing radiation to cure the ionizing radiation-curable resin. By hardening the fat, it can be used as an anti-glare film with enhanced scratch resistance and chemical resistance.

 According to the above method, the surface of the imprinted film can be formed in a desired manner by coating the resin on the matted imprinted film base material further. The anti-glare film has a low haze and dross, a high anti-glare effect, and excellent abrasion resistance and chemical resistance. It can be manufactured.

 FIG. 3 is a schematic cross-sectional view showing an example of an anti-glare film manufactured by using a shaped film. FIG. 4A is a cross-sectional view of the matted shaped film base material, and FIG. 4B is a cross-sectional view of the matted shaped film base material. FIG. 3 is a cross-sectional view of a molding film provided with a resin layer.

 Figures 5A to 5D are explanatory diagrams when manufacturing an anti-glare film using a shaped film provided with a coating resin layer.

 Fig. 6A is a cross-sectional view of a molded film formed by coating a resin obtained by adding a fine screw to a matted molded film substrate. FIG. 6B is a cross-sectional view of an anti-glare film produced using the shaped film of FIG. 6A.

 Hereinafter, an example in the case of producing the anti-glare film of the present invention will be described.

First, as shown in Fig. 4A, the dimensional stability of a film such as a polyethylene terephthalate (hereinafter referred to as PET) film is used. And embossing, sand blur An uneven shape is formed by a method such as a stroking method, and a matted shaped film base material is produced.

 Next, as shown in FIG. 4B, a thermosetting resin or an ionizing radiation-curable resin is coated on the uneven surface of the molded film substrate 11. Then, the coating resin layer 12 is formed, and the roughness of the uneven shape is adjusted to obtain a shaped film 20 having a desired surface roughness.

 When an anti-glare film is made using the above-mentioned shaped film, a tri-acetyl cellulose film is used as the base material 14 of the anti-glare film. Using a film that is transparent, heat-resistant, and dimensionally stable, such as a film, an ionizing radiation-curable resin is coated on this shaped film substrate 14. Then, as shown in FIG. 5B, an ionizing radiation-curable resin layer 13a before curing is formed. Next, as shown in FIG. 5C, the uneven surface of the shaped film 20 is superimposed on the ionizing radiation-curable resin layer 13 a before the film is cured, as shown in FIG. 5C. Then, an uneven shape is formed on the ionizing radiation-curable resin layer. The ionizing radiation is irradiated from the imprint film side of the laminated sheet to cure the ionizing radiation-curable resin layer.

 After the ionizing radiation-curable resin layer is sufficiently cured, as shown in Fig. 5B, the imprint film is peeled off from the laminated sheet to form irregularities on the surface of the base film. An anti-glare film 10 is manufactured.

Curing the ionizing radiation-curable resin with ionizing radiation In this case, it is also possible to irradiate with ionizing radiation from the opposite side of the shaping film to cause the film to harden.

 Also, when ultraviolet rays are used as ionizing radiation, ultraviolet rays are irradiated from the side of the shaping film to cure the ultraviolet-curable resin, and then the shaping film is peeled off. In some cases, the anti-glare film is irradiated with ultraviolet rays again to increase the crosslink density, thereby improving solvent resistance and abrasion resistance.

 In addition, when forming a shaped film, a resin obtained by adding fine particles having a particle size of 0.5 to: L 0 // m to a matted shaped film base material. Then, a shaped film as shown in FIG. 6A was produced, and an anti-glare film was produced by using the film, as shown in FIG. 6B. An anti-glare film with a high anti-glare effect can be obtained.

 The substrate film used in the above-mentioned imprinting film only needs to have dimensional stability and heat resistance and transmit ionizing radiation. Since ultraviolet light such as a high-pressure mercury lamp is often used as ionizing radiation, a transparent PET film can be preferably used as a substrate finolem. Thicknesses of 10 to 200 // m can be used, but the thickness may be 2 in consideration of fabrication, reuse, cost, etc. of the shaped film. About 5 m is desirable. However, when an electron beam is used as the ionizing radiation, the film only needs to be a film that transmits the electron beam and does not need to be transparent.

To adjust the roughness of the concave / convex shape of the shaping film, As the resin to be used, a thermosetting resin or an ionizing radiation-curable resin is generally used, but the ionizing resin applied to the surface of the anti-glare film is generally used. The radiation-curable resin can be used as long as it can form a predetermined concave and convex shape in the ionizing radiation-curable resin layer without softening or swelling. It is not particularly limited. Even thermoplastic resins can be used depending on the combination with the type of ionizing radiation curable resin.

 The thermosetting resin to be coated on the shaped film includes phenol resin, urea resin, diaryl phthalate resin, and melamine resin. Resin, guanamine resin, unsaturated polyester resin, polyurethane resin, epoxy resin, aminoalgide resin, and melamine-urea There are condensed resin, silicon resin, polysiloxane resin, cellulose acetate propionate, etc., and if necessary, additives such as crosslinking agent, polymerization initiator, etc. , A curing agent, a polymerization accelerator, a solvent, a viscosity modifier, an extender, and the like.

As the hardening agent, isocyanate is generally used for unsaturated polyester resin or polyester resin, and methyl alkyl ketone is used. Peroxides, such as peroxides, and radical initiators, such as azoisobutyronitrile, are commonly used in unsaturated polyesters. . Further, as the isocyanate as a curing agent, a divalent or higher valent aliphatic or aromatic isocyanate can be used. An ionizing radiation curable resin is also used as the coating resin. However, since the ionizing radiation curable resin is also used for manufacturing an anti-glare film, the anti-glare resin is used. This is described in detail in the section on films.

 The base film used for the anti-glare film may be transparent, has dimensional stability and heat resistance, and is capable of transmitting ionizing radiation. When used for display devices such as LCD, CRT, LED, etc., a large number of triacetinolose cellulose films are used.

 When an ionizing radiation-curable resin applied to a base film is cured, ultraviolet rays such as a high-pressure mercury lamp are often used as ionizing radiation. Films are used, but when the ionizing radiation-curable resin layer is cured by irradiating it with ultraviolet light only from the side of the forming film, it is not necessary to transmit ultraviolet light. Absent.

 Thicknesses of 10 to 200 m can be used, but considering workability and cost, about 80 m is desirable.

 As the ionizing radiation-curable resin that forms a concave-convex shape on the surface of the anti-glare film, an ultraviolet-curable resin or an electron beam-curable resin is usually used.

As the ionizing radiation-curable resin, a (meta) acryloyl group or a (meta) acryloyloxy group ((meta) acryloyl Is used in the meaning of acryl or metal acryl, and the following (meta) has the same meaning.) If a prepolymer, an oligomer, or a composition containing an appropriate mixture of monomers having a polymerizable unsaturated bond or an epoxy group is used. It is.

 These pre- and oligomers include urethane (meta) clear, polyester (meta) clear Acrylates such as metal and epoxy (meta) acrylates, silicon resins such as siloxane, unsaturated polyesters, epoxys, etc. Are listed.

 Examples of the monomer include styrene, a styrene monomer such as a-methylstyrene, a (meth) methyl acrylate,

(META) Acrylic acid-2-Ethylene phenol, PENTA ERITE RELEASE TOR (META) acrylate, Dipenta erythritol Roller (meta) create, zipper elimination lip pen Evening (meta) create, trimethylol prop Entry (meta) acrylate, and Z or a poly-compound having two or more thiol groups in the molecule, eg, trimethyl Tri-no-proprietary recollections, tri-methylo-reno-proprietary profiles, penta-erythrie There is a ruthetra glycol call.

 These compounds may be used alone or in combination of two or more, if necessary, but in order to impart ordinary coating suitability to the resin composition, the above-mentioned prepolymer is used. It is preferable that the content of the monomer or the polyol is 5% by weight or more, and the content of the monomer and / or the polyol is 95% by weight or less.

6 one When the flexibility of the cured product is required when selecting the monomer, the amount of the monomer may be reduced within a range that does not hinder coating suitability. A structure with a relatively low crosslink density using a functional or bifunctional acrylic monomer.

 When the heat resistance, hardness, solvent resistance, etc. of the cured product are required, increase the amount of the monomer within a range that does not hinder coating suitability, or use a trifunctional or higher functional compound. It is preferable to use an acrylate monomer of this type to have a structure with a high crosslinking density.

 By mixing a monofunctional or bifunctional monomer with a trifunctional or higher functional monomer, it is possible to adjust the coating suitability and the physical properties of the cured product.

 Examples of the monofunctional acrylate-based monomers as described above include 2-hydroxy acrylate, 2-hexaacrylate acrylate, and fluorinated acrylate.キ Nokietinoirerekureto and the like.

 Examples of the bifunctional functional monomer include ethylene glycol diacrylate, 1,6-hexadiol functional diacrylate. The trifunctional acrylate-based monomers such as methacrylate, trimethylolone propane acrylate, penta-erythrateテ レ テ テ テ テ テ テ テ テ テ テ テ テ テ テ テ テ テ テ テ テ テ テAnd the like.

When an ionizing radiation-curable resin is cured with ultraviolet light, it is necessary to use a transparent resin. In addition, as the photopolymerization initiator, the ionizing radiation-curable resin composition may be used as an acetate phenone, a benzophenone, or a mihylene benzoyl benzo. Acetamide, -Amiloxime ester, Tetramethinolamide, Monosanolide, Thioxanthones, and / or Photosensitizer For example, it is possible to use a mixture of η-butylisoamine, triethylenamine hU-η-butylphosphine, and the like.

 In the present invention, ionizing radiation irradiation is used as a method for completely curing a resin composition containing an ionizing radiation curable resin applied to an antiglare film substrate. .

 After the forming film is overlaid on the resin layer formed on the base material to form the unevenness on the resin layer, the resin layer is irradiated with ionizing radiation such as ultraviolet rays or nicknames. Completely cure the resin layer ο

 When ultraviolet light is used as ionizing radiation, if the irradiation of the imprinting film is not sufficient and the one-time irradiation does not cure sufficiently, the exfoliation of the imprinting film and re-exposure Irradiates ultraviolet rays to completely cure the resin layer

 As an ionizing radiation irradiator, an ultraviolet irradiator or an electron beam irradiator is usually used.

 For example, ultraviolet irradiation devices such as ultra-high-pressure mercury lamps, high-pressure mercury lamps, low-pressure mercury lamps, carbon arcs, black lights and metal lamps, etc. A light source is used.

 The electron beam source can be a cockroach / note-type, band-graft-type, resonant transformer-type, insulated core-transformer-type, or linear type. For various electron beam accelerators

8 one Irradiation is performed with an electron having an energy of 100 to 100 KeV, preferably 100 to 300 KeV. The irradiation dose is usually about 0.5 to 30 KGy (kilo gray).

Manufacture of transparent protective substrates and polarizing plates with anti-glare film

 Conventionally, a transparent protective substrate having antiglare properties is provided with a coating film made of a resin composition containing amorphous silica on the surface. In this amorphous silica, a paint containing amorphous silica is applied to the surface of the transparent substrate in order to impart antiglare properties to the surface of the transparent protective substrate. . In order to provide the anti-glare property, silica is blended in an amount of about 2 parts by weight with respect to 100 parts by weight of the resin, but such a blending ratio of silica is used. In the case of a triacetate phenol film on a transparent substrate, the coating containing silica will not only lose transparency, but the coating containing silica will not be as described above. If the saponification treatment is performed for the purpose of improving the adhesion and preventing static electricity, the haze value of the obtained triacetate film becomes large, The film had reduced resolution, contrast, and transparency. Here, the haze value is a value represented by diffuse transmittance / total light transmittance, and indicates the ratio of diffused light out of transmitted light.

Therefore, in the present embodiment, when the anti-glare property is excellent, the transparency is also excellent at the same time, and further, the resolution and contrast are excellent, and the surface hardness and the solvent resistance are excellent. Of transparent protective substrate with good performance Provided are a manufacturing method, a transparent protective substrate obtained by the manufacturing method, and a polarizing plate using the transparent protective substrate.

 Further, in the present embodiment, even when acetylcellulose finolem is particularly used as the transparent substrate, it may be subjected to a genification treatment. A method for producing a transparent protective substrate which does not decrease the haze value, contrast and transparency, a transparent protective substrate obtained by the production method, and this transparent protective substrate A polarizing plate.

 In a preferred embodiment of the present embodiment, a resin bead having a refractive index of 1.40 to 1.60 on a transparent substrate and an ionizing radiation-curable resin composition are essentially constituted. The coating composition to be coated is applied, and an uncured coating film of the coating composition is irradiated with ionizing radiation to cure the coating film of the coating composition, thereby preventing glare. It is possible to obtain a transparent protective substrate having a transparent film.

The transparent substrate includes a triacetyl cellulose film film, an acetate cell cellulose film, an acetate butter cell film. Film, Polyethylene resin, Polyurethane resin film, Polyacrylic resin film, Polyurethane resin film, Polyer Stele finolem, Polycarbonate film, Polystyrene film, Polyether film, Trimezololepe Non-innovative films, polyetherketone films, (meta) acrylonitrino films and the like can be used, but especially Tri-acetyl phenolic phenolic for transparency It is suitably used because of its superiority.

 The film-forming component used in the ionizing radiation-curable resin composition preferably has an acrylic functional group, for example, has a relatively low functional group. Polyester resin, Polyether resin, Acrylic resin, Epoxy resin, Urethane resin, Alkyl resin, Spirocentre of molecular weight Such as (meta) acrylate of polyfunctional compounds such as polyresin, polybutadiene resin, polycarbonate resin and polyvalent alcohol Rigomers or prepolymers and reactive diluents include ethyl (meta) acrylates, ethylhexyl (meta) Monofunctional monomers such as relay, styrene, methyl styrene, N-vinylpyrrolidone, and many others Sensory monomers, for example, trimethylone propane (meta) create, hexandiol (meta) crele Recall, trip recollection recollection (meta) recall, rejection recall recollection (meta) recall, Penta Eli-Res Tory (Met) Acre-Releat, JiPenta Eli-Res Ret-Sole Hexa (Met) Atre-Rate, 1 , 6 — Hexagonal monolithic (meta) aterate, neopentry recall (meta) aterate, etc. Those containing a large amount can be used.

Particularly preferably, a mixture of polyester acrylate and polyurethan acrylate is used. The reason is that the polyester acrylate is very hard and hard. Although it is suitable for obtaining a coating, it can be used alone with Polyester tenacre acrylate because the coating is low in impact strength and brittle. Polypropylene creators are also used in order to provide impact resistance and flexibility to the vehicle. Polyester Clear

The mixing ratio of polyurethan acrylate to 100 parts by weight shall be 30 parts by weight or less. If the value exceeds this value, the coating film will be too soft and the hardness will be lost.

Further, in order to make the above-mentioned ionizing radiation-curable resin composition into an ultraviolet-curable resin composition, an acetate phenone, a benzophenone and a benzophenone are used as a photopolymerization initiator. Phenonones, Michler Benzo Norebenzoate, α — Ami-mouth Kimi Estel, Tetramethylenolium Amides such as amides, thixosanthones, and photosensitizers such as η-butylamine, triethylamine, and tri- η-butylbutylamine Can be used as a mixture. In particular, in the present invention, the oligomer is a perennial arylate, and the monomer is a diphenyl erythritol. It is preferable to mix the rates. The ionizing radiation-curable resin composition is preferably mixed with a resin bead having a refractive index of 1.40 to 1.60 in order to impart antiglare properties. The reason for limiting the refractive index of the resin bead to such a value is that the ionizing radiation-curable resin usually has a refractive index of 1.40 to 1.50, Choosing a resin bead with a refractive index as close as possible to the refractive index of the radiation-curable resin allows the transparency of the coating to be maintained without impairing the transparency. This is because the anti-glare property can be increased. A resin bead with a refractive index close to that of ionizing radiation-curable resin is shown below.

 Resin bead name Refraction rate

M M A (Polymethacrylic acid methyl acrylate 1.49)

Polycarbonate beads. 5 8 Polystyrene beads. 50 Polyacrylic beads. 57 Polychlorinated vinyl beads. The particle size of these resin beads is preferably 3 to 8 m, and is preferably 2 to 100 parts by weight with respect to 100 parts by weight of resin. Usually about 4 parts by weight

 If such a resin bead is mixed into the coating composition, it is necessary to disperse the resin bead deposited on the bottom of the container by stirring the resin bead when using the paint. There is. In order to eliminate such inconveniences, the coating composition of the present invention may be used as an anti-settling agent for resin beads having a particle diameter of 0.5 jtzm or less, preferably 0.

A 0.25m series bead may be included. The more this bead is added, the more effective it is in preventing the sedimentation of the organic filler, but it has an adverse effect on the transparency of the coating film. Therefore, it is within the range that can prevent sedimentation to 100 parts by weight of the resin to the extent that the transparency of the coating film is not impaired. Less than 1 part by weight is preferred Further, the coating composition for forming the hard-coated coating film having anti-glare properties used in the present invention has a purpose of preventing electrification of the coating film. An antistatic agent may be added for this purpose. As the antistatic agent, metal filler, tin oxide, indium oxide, and the like can be used.

 The paint composition for forming the anti-glare film used in the present invention is composed of 100 parts by weight of the resin, 100 parts by weight or more of the solvent-dried resin and 100 parts by weight of the resin. Part or less may be included. As the solvent-drying resin, a thermoplastic resin is mainly used. It is used especially when a mixture of polyester acrylate and poly acrylate is used for the ionizing radiation-curable resin composition. Solvent-dried resins include poly (methyl acrylate) acrylate, poly (methyl acrylate) acrylate or acetate acetate. Cellulose phosphate is preferably used.

 In the present invention, the reason for including the solvent-drying resin in the ionizing radiation-curable resin composition will be described below. For example, the paint used in the present invention is a roll coater having a metal rolling, for example, a slit reverse coater. When a solvent-drying resin is included in the paint composition essentially composed of the ionizing radiation-curable resin composition as described above, when the composition is applied to a transparent substrate with a roll, The reason is that no coating failure occurs at night.

Figure 7 shows a specific example of slit reno and scoring. In this coating apparatus, the base material is transferred to a backup apparatus 102, and the composition is applied to the base material by the nozzle coating apparatus 101. Is applied. The coating composition is adjusted in part B by means of a metallizing nozzle 103 and the unneeded composition is removed by means of a doctor 104 .

 The method of curing a coating composition, which is essential from such an ionizing radiation-curable resin composition, is a conventional method of curing an ionizing radiation-curable resin composition, that is, an electron beam or ultraviolet ray. It can be cured by irradiation. For example, in the case of electron beam curing, the Cockroft Walton type, Bandegraft type, Resonant voltage transformer type, Insulated core transformer type, Linear type, Dynamitro Emitted from various types of electron beam accelerators, such as helium-type and high-frequency-type electron accelerators, with an energy of 510,000 KeV, preferably 100,300 KeV. In the case of UV curing, light from an ultra-high pressure mercury lamp, high pressure mercury lamp, low pressure mercury lamp, carbon lamp, xenon lamp, metal lamp, etc. Ultraviolet rays and the like emitted from the light source can be used.

In addition, the present invention provides a method for laminating a polarizing element on a transparent protective substrate having a coated antiglare coating film produced as described above. Thus, a polarizing plate is obtained. This polarizing element is made of a polyvinyl alcohol, dyed and stretched with iodine or a dye, and is made of polyvinyl alcohol. Film, polyvinyl acetate film, ethylenic acetate vinyl copolymer genated film, etc. be able to . In order to increase the adhesiveness in the laminating process and to prevent static electricity, the transparent protective substrate may be made of, for example, a triacetyl phenol resin. If it is a norm, perform a genification process on the triacetyl cellulose film. This genification process may be performed before or after applying a hardcoat to the triacetylcellulose film.

Example of manufacturing polarizing plate

 Next, it is preferable to improve the durability of the liquid crystal cell by adjusting the moisture permeability of the polarizing plate provided on the surface of the liquid crystal cell, in particular, the sheet used for the polarizing plate. The following is a description of the preferred embodiment.

 In recent years, the development of display devices such as LCDs, CRTs, and plasma displays has been remarkable. In particular, LCDs have a high quality demand for large-size, high-resolution, high-definition displays. As a result, a polarizing plate with excellent durability has become necessary. High-definition LCD polarizers are made of cellulosic triacetate 'sheet (hereinafter referred to as TAC sheet) that has excellent light transmittance and excellent adhesion to other materials. ) Has been used.

 Transparent sheets that have been used for polarizing plates in the past provide TAC sheets with excellent optical functions, such as haze, reflectivity, light transmittance, and image clarity, as well as anti-glare properties. The layer is made of a binder made of an ionizing radiation-curable resin to satisfy abrasion resistance, abrasion resistance, etc. in consideration of adhesiveness to a transparent sheet, and the like. It has been used by selecting one of them.

The TAC sheet used for conventional polarizers has optical characteristics. Although it has excellent quality, it has the disadvantage of poorer moisture resistance and lower moisture permeability than other plastic sheets such as polyester. It is a great thing. For this reason, a polarizing plate using a TAC sheet is deteriorated due to hydrolytic decomposition of the sheet itself due to environmental moisture, and is likely to deteriorate due to permeated moisture. There has been a problem that the function of a polarizer made of polyvinyl alcohol is deteriorated or the durability is poor.

 Therefore, in this embodiment, a TAC sheet having excellent optical properties is used for a polarizing plate to provide moisture resistance and prevent its hydrolysis by hydrolysis. The present invention provides a polarizing plate having excellent durability, which does not cause functional deterioration, using a polarizer made of polyvinyl alcohol.

In order to achieve the above-mentioned object, in this embodiment, a polarizer is provided between the transparent sheets of the two sheets. and have you in a plate, sheet over the city of one also with small greens rather is, that prescribed in JISZ 0 2 0 8, in Tsu by the moisture-proof packaging material moisture permeability test method ^{5 0 0 g / m 2 ·} 2 It has a moisture permeability of 4 hr s. Or less.

 Also, the transparent sheet is a cellulose acetate sheet, and the hard coat layer and the sheet are separated from each other. The thickness of the hard coat layer, which is formed on the surface and is composed of the pentaerythritol triacrylate and the polymerization initiator, is 3 / m or more. It is a polarizing plate of 20 // m.

The anti-glare polarizing plate AB of this embodiment has a transmission The anti-glare sheet SB on which at least one surface of the light-transmitting sheet 201 is provided with the anti-glare film 3b according to the present invention, is provided on the other surface of the anti-glare sheet SB. It is composed of a polarizer 202 and a transparent sheet 201, which are made of Livinizole-Anole call, and laminated in this order.

The moisture permeability of the transparent sheet provided with the anti-glare film layer 203b is 500 g / m '* 24 1 S. (hereinafter, the moisture permeability is , Simply described as g / m ² ). It is configured as follows.

 The transparent sheet used in the present embodiment includes a stretched polyester sheet, a polycarbonate sheet, a porous metal sheet, and a transparent sheet. (1) Polyvinyl chloride sheet, ethylene / vinyl acetate copolymer saponified sheet, polymethylpentene sheet, etc. . Preferably, the optical functions are excellent in haze, reflectance, light transmittance, and image clarity, and the thickness of the sheet is not uneven, and the accuracy is good. This is a necessary condition, and 80 m TAC sheets manufactured by the casting method are often used.

A polarizer composed of a polyvinyl alcohol film is a 20 m thick polarizer that is uniaxially stretched and has polarizability in one molecular orientation. It is a stack of the above finolems. The liquid crystal cell for the LCD is constructed by enclosing a liquid crystal cell with a force filter panel between two glass plates with transparent electrodes. A polarizing plate is laminated on the outer surface of the device via an adhesive layer. Then, as shown in, for example, FIG. 8, the polarizing plate is provided with a transparent sheet 201 and an anti-glare hard coat layer 203b. It is configured with a polarizer 202 interposed between the SB and the SB.

 The surface of the transparent sheet 201 and the binder of the anti-glare hard coat layer 203b to be provided take into consideration the adhesion to the sheet and the abrasion resistance. From among ionizing radiation-curable resins, select an ultraviolet-curable resin that is easy to handle as a binder.

 The ionizing radiation-curable resin may contain a polymerizable unsaturated bond or an epoxy group in the molecule, a prepolymer, an oligomer, and / or a monomer. Use the mixed composition.

 These resin systems include urethane acrylates, pentameters, acrylates, polyesters, and polyesters. Acceleration rate, meta-creation rate, etc., such as no-meter attribute rate, epoxy recreation rate, epoxy recreation rate, etc.が Silicon resin such as lipstick and polyester epoxy etc. are available.

 Prepolymers and oligomers include unsaturated polyesters such as condensates of unsaturated dicarboxylic acids and polyhydric alcohols. Is o

Unidentified fields include Penta Eri Retrieval Recreation Retrie Polyfunctional acrylate monomers such as tonolehexarate, styrene, 0; — methionolestyren, atalinolenic acid Methyl, methacrylic acid methyl acrylate, acrylic amide, ethylene glycol phenolic create, trimethyl phenol , ^Zero -three-dimensional collection, and the like.

 In particular, when ultraviolet curing is performed, the ionizing radiation-curable resin composition is added to photopolymerization initiators such as acetate funon, benzophenone, and michrolar. Benzozole Benzoate, thioxanthones, and Z or triethylamine as a photosensitizer, tri-n-petitinole A mixture of phosphine etc. can also be used.

 A surfactant that has an antistatic effect for the purpose of preventing adhesion of dust due to static electricity to the antiglare hard coat layer of the polarizing plate used for the surface of the liquid crystal cell It can be included in the coating solution of the hard coat layer.

 The surfactant is appropriately selected from nonionic surfactants, cationic surfactants, and amphoteric surfactants.

 For the purpose of improving the abrasion resistance of the anti-glare hard coat layer of the polarizing plate used on the surface of the liquid crystal cell, hydrocarbons, fatty acids, fatty acid esters, and lubricants as lubricants It can also be appropriately selected from the group consisting of molds, amides, silicones and the like.

Examples of light diffusing agents include silica, calcium carbonate, precipitated calcium sulfate, aluminum hydroxide powder, powdered aluminum powder, and polyethylene. Among organic fine particles such as len particles, polymetametal atalylate particles, and polycarbonate particles. It is used by selecting it appropriately. In particular, silica powder has a high transmittance to ultraviolet light, and is an excellent material that does not hinder the curing of the ultraviolet-curable resin as a binder.

 The thickness of the antiglare hard coat layer capable of obtaining a desired moisture permeability is 3 / m or more, preferably 5 // m or more and 20 m or less.

 If the thickness of the coating layer is 3 or less, the defects of the protruding material cannot be covered, and if it exceeds 2 O / im, the curling becomes severe. The preferred application amount is 7 to 8 m, which causes the problem of poor machine suitability.

 These compounds and additives are used, if necessary, alone or in combination of two or more. The resin varnish has a viscosity of 200 to 150 centimeters suitable for the reverse roll coating method to smooth the coating surface. However, in order to provide leveling properties after coating and to cover fine projections, it is preferable that the solid content is 60% or more. Then, in order to satisfy the above conditions, a curing agent was added to 100 parts of the above-mentioned monomer from the above-mentioned monomers. Those whose viscosity has been adjusted by adding, and a solvent are preferred.

 Depending on the amount of the light diffusing agent used in the anti-glare hard coat layer, the moisture permeability may be large. The same surface of the sheet has the desired moisture permeability due to the two-layer coat of the transparent layer and the anti-glare hard coat layer made of ionizing radiation curable resin. You can also set up things

Three O

 The coating method for forming the anti-glare hard coat layer is determined by the properties and amount of the coating solution, but it is necessary to obtain a smooth surface. Before directing to curing after application, such as direct or linoleic roll coat, bar coat, and gravure coat The coating is carried out with a centrifugal centimeter of 200 to 1500, which has a viscosity suitable for flowability, whereby the coating surface spreads and a smooth uniform surface is obtained.

 The polarizing plate of the present invention has the one as shown in FIGS. 8 to 12. FIG. That is,

 (1) An anti-glare sheet SB in which the anti-glare hard coat layer (anti-glare film layer) 203 is provided on a transparent sheet 201, and a polarizer 2 The anti-glare polarizing plate AB shown in FIG. 8 is obtained by sequentially laminating a transparent sheet 210 without a hard coat layer and a transparent sheet 201 without a hard coat layer.

 (2) As shown in Fig. 9, the moisture-proof hard coat layer 203c is provided on the transparent sheet 201, and the moisture-proof sheet SC and the polarizer 200 are provided. And a transparent sheet 201 without a hard coat layer, which is laminated in this order, on a moisture-proof polarizing plate AC.

 (3) As shown in Fig. 10, the transparent sheet 201 without the hard coat layer, the polarizer 202, and the hard coat layer are not provided. A polarizing plate AA, in which transparent sheets 201 are laminated in this order,

(4) In addition, the transparent sheet is slightly inferior in optical and surface strength, but is superior in moisture-proof property. You can also use one sheet. That is, a transparent sheet 201, a polarizer 202, and a moisture-proof transparent sheet without a hard coat layer (Polyethylene Teleray) G) The moisture-proof polarizing plate AD shown in Fig. 11 in which 1D and are laminated in order.

 Depending on the degree of durability required, the above-mentioned polarizing plate is appropriately selected, and the liquid crystal 4 is used to constitute a “liquid crystal cell” for LCD. That is,

 (1) A "liquid crystal cell" constructed by using a polarizing plate AA without a hard coat layer on the polarizing plate on both sides as shown at 4AA in Fig. 12A.

 (2) As shown at 4 AB in Fig. 12B, an anti-glare polarizing plate AB is used on one surface, and a polarizing plate AA without a hard coat layer is used on the other surface. Constituting "Anti-glare liquid crystal cell" for LCD.

 (3) As shown at 4BC in Fig. 12C, one anti-glare polarizing plate AB with an anti-glare hard coat layer on one polarizer, and a moisture-proof hard core on the other surface. With a moisture-proof polarizing plate AC provided with a coating layer, and a coating layer made of an ionizing radiation curable resin on both transparent sheets 201, the LCD has an anti-glare and moisture-proof property. Liquid crystal cells ”can be constructed.

(4) In addition, as shown in 4BD in Fig. 12D, one of the polarizing plates has no hard coat layer, but has a moisture-proof polyethylene. Composed of a transparent moisture-proof polarizing plate AD formed from the referral sheet 1D, and an anti-glare polarizing plate AB on the other surface, forming a "glare-proof and moisture-proof liquid crystal cell" for LCD. Can do O

As described above, the polarizing plate provided with the antiglare hard coat layer made of the ionizing radiation-curable resin formed on the surface of the transparent sheet is provided with the antiglare hard coat. The layer and the moisture-proof hard coat layer have a moisture permeability of 500 g / m ² or less.

 It also prevents moisture from the outside from penetrating into the interior of the transparent sheet, preventing chemical changes such as hydrolysis of the transparent sheet, and improving the liquid crystal function of the polarizer. It has the effect of preventing the drop.

Example 1

 A UV curable resin 2 having the following composition was added to the triacetone resin phenolic resin [TAC 80m1 (Fuji Photo Film Co., Ltd., FT-UV-80)]. By the roll coat method,

7 and cormorants coating by ing to ~ 8 g / m ²

 100% by weight polyfunctional acrylate

 (Center Eli

 h Rear clear)

 Propionic acid acetate 1.2 parts by weight

 Cellulose

 Benzovanone 4 parts by weight

 4 parts by weight

 (h Rhen)

Next, after the solvent is dried, the matted PET (Ra04, Sm: 47.5) is laminated as a shaping finolem. The UV-curable resin was cured by irradiating two 160-WX mercury lamps from a distance of 15 cm as UV-curing conditions to cure the UV-curable resin under a condition of 10 mZ. Further, the shaped film was peeled off to obtain an anti-glare film.

 The measurement results of the optical properties of the above film are as follows.o

 Total light transmittance 87.5%

 H aze 2 8.9%

 60 ° Gloss 25.6% or less

 Center line average roughness Ra 0 .A 2 m

 Concavo-convex pitch Sm 70.8 β m

 The anti-glare finolem obtained in this way had no glare due to light reflection and was excellent in the brightness of the image.

 The measuring methods and measuring instruments for the optical properties and surface roughness are as follows. The same applies to the embodiments described later.

 Haze (cloudiness value) Haze>: JISK 6714 / Toyo Seiki direct-reading haze meter Total light transmittance: JISΚ6714 /

 Toyo Seiki's direct-reading haze meter Gloss G〉 s s〉 ： JISK 874 1 /

Murakami Color Research Laboratory GM-3D center line average roughness Ra>: JISB0601 Average roughness of unevenness Sm>: Kosaka Laboratory SEF — 30 Example 2

 Tri-acetyl cell mouth--S finorem (TAC 80m

(FT-UV—80 manufactured by Fuji Photo Film Co., Ltd.) UV-curing on one side of Polyester finolem 75 βm (T-60 manufactured by Toray) A solution containing 5 parts by weight of a light-diffusing agent (silica beads) with respect to 100 parts by weight of the mold resin is 7 to 8 g / m ² by a roll coating method. After drying the solvent coated so as to form a matting PET film as a shaping film

(Ra: 0.46, Sm: 45.0) were laminated, and as a UV curing condition, a mercury lamp of 160 WX and two lamps were used, from a distance of 15 cm. After curing the UV-curable resin under the condition of 10 m / min, the shaped film was peeled off to obtain an antiglare film.

 The results of measuring the optical properties of the above film are as follows

 Total light transmittance 87.0%

 H aze 30.1.%

 60 ° gloss 24.6%

 Surface roughness 46 m

 Uneven pitch 70.7 m

As in the case of Example 1, glare due to light reflection was prevented, and an antiglare film was obtained in which an image could be clearly seen. Comparative Example 1

 Says A G30 manufactured by Todenko Co., Ltd. has a total light transmittance of 8 7

%, HAZE 3.5%, 60 degree Optical properties of gloss 110%, surface center line average roughness 0.2 m, surface concave-convex pitch 170 m It was a hard coat finolem with roughness and had glare on the surface.

The anti-glare film of the following example was manufactured according to the following manufacturing conditions.

Example 3

 <m Material: TAC (triacetyl cellulose)

 Thickness: 80

 Manufacturer: Fuji Photo Film Co., Ltd.

 α

 □ π Name: FT-UV-80

 ② Rainbow resin Material name Parts by weight Resin: Pentaerythritol triatalylate 98.8 Cellulose acetate propionate 1.2 Photoinitiator: Irgacure-1 184 (manufactured by Ciba-Geigy Co.) 2.7 7, Benzophenone 2, 7 Quality: Silane treated silica 4.2 Size: Average particle size 3 // m

Additive: ether-modified silicone 0.1 Diluent: toluene 84.8 Ethyl acetate 5.0 Coating method: slit reverse method

 Rainbow thickness: 5 g / fi (DRY)

 ④Dry drying Approx. 70 ° C

 Drying time: about lmin

 フ ィ ル ム No film

 ⑥ ϋ V irradiation Lamp used: High-pressure mercury lamp (manufactured by Shio Electric Co., Ltd.)

 With conveyor

 Lamp output: 16 OW / cm

 Line speed: 1 Om / min

 Number of irradiations: 2 pass

Example 4

 Fiber material: TAC (triacetylcellulose)

 Sees: 80

 -Car: Fuji Photo Film Co., Ltd.

 □ Name: FT-UV-80

 ② Rainbow resin material name

 Resin: pentaerythritol triacrylate 98.8 Cellulose acetate propionate 1.2 Photoinitiator: Irgacure I 184 (manufactured by Ciba Geigy) 2.7 benzophenone 2.7 Particles: Material: acrylic 2.8 Size: average Particle size 5 ^ m

Additive: Ether-modified silicone 0.1 Diluent: Toluene 94.8 Ethyl acetate 5.0 Coating method: slit reverse method

 Coating thickness: 5 gZ (DRY)

 ④Dry drying Approx. 80 ° C

 Drying time: about lmin

 ⑤No imprint film

 ⑥ UV irradiation Lamp used: High-pressure mercury lamp (manufactured by Shio Electric Co., Ltd.)

 With conveyor

 Lamp output: 16 OW / cm

 Line speed: 1 OmZmin

 Number of irradiations: 2 pass

Example 5

 Fiber material: TAC (triacetylcellulose)

 Thickness: 80 / m

 Meichiriichi: Fuji Photo Film Co., Ltd.

 □ Name: FT— UV— 80

 ② Coating resin Material name Part by weight Resin: pentaerythritol triatalylate 98.8 Cellulose acetate propionate 1.2 Photoinitiator: Irgacure-1 184 (manufactured by Ciba-Geigy) 2.7 benzophenone 2.7 particles: Material: Silane treated silica 3.8 Size: Average particle size 1.5 ^ m

Additive: Ether-modified silicone 0.1 Dilution '脑: Toluene 104.4 Ethyl acetate 5.0 Coating method: slit reverse method

 Rainbow thickness: 5 g / iii (DRY)

 ④Dry drying '^: Approx. 40 ° C

 Drying time: about lmin

 ⑤ No KM film

 ⑥ ϋ V irradiation Lamp used: High-pressure mercury lamp (manufactured by Shio Electric Co., Ltd.)

 With conveyor

 Lamp output: 16 OW / cm

 Line speed: 1 Om Zmin

 Number of irradiations: 2 pass

Example 6

 Material: TAC (triacetylcellulose)

 Thickness: 80 m

 Manufacturer: Fuji Photo Film Co., Ltd.

 Name: FT—UV—80

 ② Rainbow resin Material name Parts by weight Resin: Pentaerythritol triacrylate 98.8 Cellulose acetate propionate 1.2 Photoinitiator: Irgacure-1 184 (manufactured by Ciba-Geigy Co.) 2.7 Benzophenone 2.7 Particles: material Quality: Silane treated silica 5.6 Size: Average particle size 1.5 jum

Additive: Ether-modified silicone 0.1 Dilution 'Class: Toluene 106.4 Ethyl acetate 5.0 Coating method: slit reverse method

 Coating thickness: 5 g / τά (DRY)

 ④Dry drying About 40 ° C

 Drying time: about lmin

⑤ フ ィ ル ム No film

 ⑥ UV irradiation Lamp used: High-pressure mercury lamp (manufactured by Shio Electric Co., Ltd.)

 With conveyor

 Lamp output: 16 OW / cm

 Line speed: 1 OmZmin

 Number of irradiations: 2pass

Example 7

 Material: TAC (triacetylcellulose)

 Thickness: 80 / m

 Manufacturer: Fuji Photo Film Co., Ltd.

 Mouth

 ΠΠ Name: FT-UV-80

 ② Coating resin Material name Part by weight Tree Pentaerythritol triatalylate 98.8 Cellulose acetate propionate 1.2 Photoinitiator: Irgacure-1 184 (manufactured by Ciba-Geigy) 3.3 Benzophenone 3.3 Particle: Material : Silane-coupled silica 26.4 Size: Average particle size 1

Additive: Ether-modified silicone 0.1 Diluent: Toluene 128.0 Ethyl acetate 5.0 Coating method: slit reverse method

 Coating thickness: 5 g / τιί (DRY) Example 8

 Material: TAC (triacetylcellulose)

 Thickness: 80

 Manufacturer: Konica Corporation

 Name: KC 80UVS

② Coating resin Material name Part by weight Tree finger Pentaerythritol triacrylate 98.8 Cellulose acetate propionate 1.2 Photoinitiator: Irgacure-1 184 (manufactured by Ciba-Geigy) 3.0 Benzophenone 3.0 Particles: None

 Additives: ether-modified silicone 0.2 diluted diluent j: toluene] 25.0 ethyl acetate 5.0 e Method: slit reverse method

 Coating thickness: 8 g / (DRY)

 ④Dry drying About 40 ° C

 Drying time: about lmin

 ⑤Shape film material: PET (polyester) (kneading matting agent)

 Thickness: 26 / m

 Manufacturer: Diamond Foil Heist Co., Ltd.

Name: E—130 ⑥ ϋ V irradiation Lamp used: High-pressure mercury lamp (manufactured by Shio Electric Co., Ltd.)

 With conveyor

 Lamp output: 16 OW / cm

 Line speed: 1 OmZmin

 Number of irradiations: 2 pass

Example 9

 (1) Base material: TAC (triacetylcellulose)

 Thickness: 80 / m

 Manufacturer: Fuji Photo Film Co., Ltd.

 Product name: FT—UV—80

 ② ^ X resin Material name parts by weight Resin Pentaerythritol triacrylate 98.8 Cellulose acetate propionate 1.2 Photoinitiator Irgacure-1 184 (manufactured by Ciba-Geigy) 3.0 Benzophenone 3.0 No particles

 Additives Ether-modified silicone 0.2 Dilution toluene 25.0 Ethyl acetate 5.0 D Coating method: Slip reverse method

 Coating thickness: 8g / 7? I (DRY)

 : About 70 ° C

Drying time: about lmin フ ィ ル ム Film material PET (polyester) (kneading matting agent) Thickness 26 μτη

 Manufacturer Diamond Foil Heist Co., Ltd.

 Name: Ε-130

 ラ ン プ UV illumination Ji Lamp used: High pressure mercury lamp (manufactured by Shio Electric Co., Ltd.)

 With conveyor

 Lamp output: 16 OW / cm

 Line speed: 1 Om / min

 Number of irradiations: 2 pass

Example 10

 (DS material: TAC (triacetyl cellulose)

 Thickness: 80

 Manufacturer: Konica Corporation

 o Name: KC80UVS

 ② Name of resin coating material

 Resin:: Pentaerythritol triacrylate 98.8 Cellulose acetate propionate 1.2 Photoinitiator: Irgacure-1 184 (manufactured by Ciba-Geigy) 3.0 Benzophenone 3.0 Particles:: None

Additive:: Ether-modified silicone 0.2 Diluent:: Toluene 125.0 Ethyl acetate 5.0 Coating method: slit reverse method

 Thickness: 8 g / 7rf (DRY)

 ④Dry drying About 40 ° C

 Drying time: about 1 min

 ⑤Shape film material: PET (polyester)

 Thickness: 25 jt / m

 Manufacturer: Toray Industries, Inc.

 Product name: E— 06

 ⑥ UV irradiation Lamp used: High-pressure mercury lamp (manufactured by Shio Electric Co., Ltd.)

 With conveyor

 Lamp output: 16 OW / cm

 Line speed: 1 Om ½in

 Number of irradiations: 2 pass

Example 1 1

 ¾ Material: TAC (triacetylcellulose)

 Thickness: 80 / m

 Manufacturer: Konica Corporation

 Product name: KC80UVS

② Resin Material name Parts by weight Resin: Penyu erythritol triacrylate 98.8 Cellulose acetate propionate 1.2 Photoinitiator: Irgacure-1 184 (manufactured by Ciba-Geigy) 3.0 Benzophenone 3.0 Particles: None Additive: Ether-modified silicone 0.2 dilution '^: Toluene 125.0 Ethyl sulphate 5.0 E Method: slit reverse method

 Rainbow thickness: 8 g / (DRY)

 ④Drying Drying temperature: about 40 ° C

 Drying time: about lmin

 Awake film Material: PET (polyester) (kneading matting agent)

 Thickness: 25 // m

 Manufacturer: Unitika Ltd.

 Name: PTH—25

 ⑥ UV irradiation Lamp used: High-pressure mercury lamp (manufactured by Shio Electric Co., Ltd.)

 With conveyor

 Lamp output: 16 OW / cm

 Line speed: lOm / min

 Number of irradiations: 2 pass

Example 1 2

 Thigh material: TAC (triacetyl cellulose)

 Thickness: 80 t m

 Manufacturer: Fuji Photo Film Co., Ltd.

Product name: FT—UV—80 Material name Parts by weight Resin: Benyu erythritol triatalylate 98.8 Cellulose acetate propionate 1.2 Photoinitiator: Irgakiurea 184 (manufactured by Ciba-Geigy) 3.0 Benzophenone 3.0 Particles: None

 Additives: ether-modified silicone 0.2 dilution 'translation: toluene 125.0 ethyl acetate 5.0 coating method: slit reverse method

 Rainbow thickness: 8 g / d (DRY)

 ④Dry drying About 40 ° C

 Drying time: about lmin

 ⑤ Film substrate ： Material PET

 Thickness 26 βτα

 Manufacturer Diamond Wheel Heist Co., Ltd.

 □

 ΠΕ3 Ε 130-130

 Rainbow resin cellulose acetate propionate 100.0 parts by weight xylene diisocyanate 22.0

 Silicone 1.5

 ΜΕΚ 490.3

 Ethyl acid drunk 7.4

 Toluene 414.1

Annon 416.8 Coating: Coating method: Matrix berth method

 Coating thickness: 3 g / ύ (DRY)

 Drying: temperature: 80 ° C

 Time: about lmin

 Wear: 70 ° C for 5 days

 ⑥ UV irradiation Lamp used: High-pressure mercury lamp (manufactured by Shio Electric Co., Ltd.)

 With conveyor

 Lamp output: 16 OW / cm

 Line speed: 1 Om / min

 Number of irradiations: 2 pass

Comparative Example 2

 Material: TAC (triacetylcellulose)

 Thickness: 80 zm

 Manufacturer: Fuji Photo Film Co., Ltd.

 Product name: FT—UV—80

 ② Coating resin Material name Part by weight Resin: pentaerythritol triatalylate 98.8 Cellulose acetate propionate 1.2 Photoinitiator: Irgacure-1 184 (manufactured by Ciba Geigy) 3.0 Benzophenone 3.0 Particles: None

Additive: Ether-modified silicone 0.2 Dilution: Toluene 125.0 Ethyl acetate 5.0 Coating method: slit reverse method

 Rainbow thickness: 8 g / ή (DRY)

 ④Drying Drying temperature: about 70 ° C

 Drying time: about lmin

 China Film Material: PET

 Thickness: 25 μπι

 Manufacturer: Toray Industries, Inc.

 Product name: ΜΤ—ΗΡ

 V U V illuminator Ji used lamp '· High pressure mercury lamp

 With conveyor

 Lamp output: 16 OW / cm

 Line speed: 1 OmZmin

 Number of irradiations: 2 pass

 All of Examples 3 to 12 described above exhibited excellent properties in terms of image display quality as well as excellent anti-glare effect—the anti-glare property of Comparative Example 2 The display screen to which the film was applied was inferior in image display quality, especially the screen was entirely white, and the contrast was low.

The following table shows the optical characteristics and surface characteristics of the above Examples and Comparative Examples.

Optical characteristics Surface characteristics

^^ Transmittance Haze degree 60 degree gloss R a Sm (%) (%) (%) ^ m) (m)

Hffi Example 1 87.5 28.9 25.6 0.42 70.8 Example 2 87.0 30.1 24.6 0.462 70.7 Jonggyo 3 88.2 5.5 56.9 0.437 186.65 Difficult case 4 87.4 8.9 47.4 0.444 107.2 Example 5 88.9 3.9 68.4 0.291 122.01 Starvation case 6 88.5 5.7 88.0 0.417 156 Difficult 7 88.1 10.1 46.0 0.141 50.339 Difficult 8 86.7 31.5 23.5 0.50 88 Example 9 87.2 29.3 25.2 0.44 71.5 Example 10 88.9 18.0 47.9 0.18 70 Starvation 11 89.3 5.5 5.72.6 0.18 150.5

HJS example 12 87.6 7.0 47.7 0.32 112 Comparative example 1 87 3.5 110 0.2 0.2 Comparative example 2 81.64.7 9.6 0.6.668 56.1

Claims

The scope of the claims

1. Transparent fisolem,

 All light beams provided on the transparent film, having optical characteristics of 85% or more in transmittance, 3.0 to 35% in haze, and 90% or less in gloss at 60 °. And an ionizing radiation-curable resin layer having a surface center line average roughness of 0.05 to 0.6111 and a pitch between surface irregularities of 5 to 200 / zm. Anti-glare finolem for displays.

 2. The anti-glare film according to claim 1, wherein the surface center line average roughness is in a range of 0.05 to 0.4 m.

 3. The anti-glare film according to claim 1, wherein the surface center line average roughness is in the range of 0.05 to 0.25 μπι.

 4. The antiglare film according to claim 1, wherein an antireflection layer made of a metal compound is further formed on the surface of the ionizing radiation-curable resin layer.

5. The anti-reflection layer is, A 1 2 0 ο ^ Z n 0 2 Contact good beauty M g F ₂ of least for the even one or et ing, antiglare full I le beam according to claim 4 .

 6. The anti-glare film according to claim 1, which is obtained by using a shaped film base material which is formed into a mat by forming an uneven shape on the surface. Room.

7. Apply resin as desired to the uneven surface of the imprinted film substrate, which has been matted by forming the uneven surface on the surface. A shaping film having a desired uneven shape is prepared by laying the cloth, and the shaping film is used on the base film. 2. The anti-glare film according to claim 1, obtained by shaping the ionizing radiation-curable resin layer formed as above into an uneven shape.

 8. In order to obtain the anti-glare film according to claim 1, a shaped film base which is formed into a mat by forming an uneven shape on the surface. By applying a resin to the uneven surface of the material as desired, a molding film in which the desired uneven shape is formed is obtained.

 The immobilized finolem obtained in this way and the substrate film coated with an ionizing radiation-curable resin were used as the ionizing radiation-curable resin-coated surface. Laminate so that the uneven surface of the shaping film is in contact with

 The laminate is irradiated with ionizing radiation from the molding film side or the base film side to cure the ionizing radiation-curable resin, and

 A method for producing an anti-glare film, comprising peeling the shaped film from the laminate.

9. The shaped film coated with the above resin is a matted film made of a transparent resin or a resin obtained by adding fine particles having a particle size of 0.5 to 10 m. Claims: A shaped film formed by denting to form an uneven shape, wherein the ionizing radiation curable resin is an ultraviolet curable resin, and the ionizing radiation is ultraviolet light. 7. The method described in 7.

 10. The method according to claim 8, wherein a surface roughness of the shaping film is 0.1 to 10 / zm as a center line average roughness (Ra).

 11. The method according to claim 7, further comprising a step of, after peeling the shaping film, re-irradiating with ionizing radiation to cure the ionizing radiation-curable resin. The method described in

 12. The anti-glare physolem according to claim 1, wherein the ionizing radiation-curable resin layer contains an organic bead or an inorganic bead.

 13. The antiglare feature according to claim 1, wherein the electron radiation-curable resin layer contains a resin bead having a refractive index of 1.40 to 1.6. Lum.

 14. An organic or inorganic bead, preferably a resin bead having a refractive index of 1.40 to 1.60, and an ionizing radiation-curable resin composition on a transparent substrate. A coating composition,

 The anti-glare film according to claim 1, wherein the uncured coating film of the coating composition is irradiated with ionizing radiation to cure the coating film of the coating composition. Manufacturing method of transparent protective substrate.

15 5. In addition to the resin composition, a silica bead having a particle size of less than 0. The method according to claim 14, wherein less than 0.1 part by weight is contained per part by weight.

 16. The method according to claim 14, wherein the coating composition contains 100 parts by weight or more and 100 parts by weight or less of a solvent-drying resin based on 100 parts by weight of the resin.

 7. The ionizing radiation-curable resin composition is essentially composed of polystyrene acrylate and polyurethan acrylate. The described method.

 8. a * Polarizing plate, wherein the transparent protective substrate obtained by claim 14 is mounted on a polarizing element.

 19. A polarizing plate comprising the anti-glare film according to claim 1.

 Moisture-proof packaging material specified in JISZ 0 208 The water vapor permeability According to the test method, 500 g Znf * 24 Further provided with a transparent sheet having a moisture permeability of 4 hrs or less. A polarizing plate according to claim 19.

 21. The polarizing plate according to claim 20, wherein the transparent sheet is made of senolorostrea acetate.

22. A radiation-curable resin composition containing an organic or inorganic bead, preferably a resin bead having a refractive index of 1.40 to 1.60, on a base film. The coated surface 塗布 formed by coating is formed by forming a concave and convex shape on the surface, and is formed by a forming finolem which is formed by matting. The anti-glare film according to claim 1, which is obtained by the following method.

2 3. Prepare a shaping film that is made into a mat by forming a concave and convex shape on the surface.

 An ionizing radiation-curable resin composition containing an organic or inorganic bead, preferably a resin bead having a refractive index of 1.40 to 1.60, on a base film. A layered product is formed by overlapping the coated surface formed by coating so that the concave and convex surfaces of the shaping film are in contact with each other;

 The laminate is irradiated with ionizing radiation from the molding film side or the base film side to cure the ionizing radiation-curable resin, and

 A method for producing an anti-glare film, comprising peeling the shaped film from the laminate.