WO2019181615A1 - 防眩フィルム - Google Patents

防眩フィルム Download PDF

Info

Publication number
WO2019181615A1
WO2019181615A1 PCT/JP2019/009763 JP2019009763W WO2019181615A1 WO 2019181615 A1 WO2019181615 A1 WO 2019181615A1 JP 2019009763 W JP2019009763 W JP 2019009763W WO 2019181615 A1 WO2019181615 A1 WO 2019181615A1
Authority
WO
WIPO (PCT)
Prior art keywords
particles
antiglare
resin
density
base resin
Prior art date
Application number
PCT/JP2019/009763
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
京春 金
杉山　靖典
洋一 渡部
Original Assignee
株式会社きもと
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社きもと filed Critical 株式会社きもと
Priority to KR1020207021511A priority Critical patent/KR20200132844A/ko
Priority to CN201980008569.3A priority patent/CN111602073A/zh
Publication of WO2019181615A1 publication Critical patent/WO2019181615A1/ja

Links

Images

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
    • G02B5/0236—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place within the volume of the element
    • G02B5/0242—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place within the volume of the element by means of dispersed particles
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
    • G02B1/11—Anti-reflection coatings
    • G02B1/111—Anti-reflection coatings using layers comprising organic materials
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements

Definitions

  • the present invention relates to an antiglare film, and more particularly to an antiglare film in which glare and antiglare properties are greatly improved by using two specific types of particles.
  • Patent Document 2 discloses an antiglare film in which the surface haze value (external haze value) and the internal haze value of the antiglare layer are within specific ranges, respectively, and the reflection is large when the surface haze value is small ( Although the antiglare property is bad) and the internal haze value is small, surface glare (glare) is easily generated in the examples of Patent Document 2, but specific examples for setting the haze value within a specific range are shown. No guidance is given.
  • patent document 3 it contradicts by prescribing
  • Patent Document 3 a specific means for realizing a desired haze value or surface shape is not clear.
  • the inventor of the present invention has an internal diffusion particle A having a specific refractive index difference from the base resin of the antiglare layer, and an external diffusion lighter than the base resin.
  • the antiglare film is produced by using the particle B together, it is found that the internal diffusion and the external diffusion can be designed separately, and both the antiglare property and the glare prevention can be improved, and the present invention is completed. It came to do.
  • the present invention is an antiglare film having an antiglare layer on at least one surface of a base film, wherein the antiglare layer has a refractive index difference between the base resin and the base resin of 0.02 or more.
  • An anti-glare film comprising particles A having a density exceeding 0.90 times the density of the base resin, and particles B having a density of 0.90 times or less the density of the base resin It is to provide.
  • the anti-glare film which is excellent in anti-glare property, is hard to generate glare, and can respond to high definition can be provided.
  • the particle B contained in the antiglare layer of the present invention since the particle B contained in the antiglare layer of the present invention has a low density, it tends to float on the surface of the antiglare layer without using an additive such as a precipitation inhibitor.
  • the particles that float on the surface of the antiglare layer contribute to the formation of a concavo-convex structure on the surface and improve the antiglare property.
  • the particles A contained in the antiglare layer of the present invention are present uniformly in the base resin without floating on the surface, and are considered to contribute to internal diffusion.
  • the antiglare film of the present invention since two kinds of particles having different roles are used in the antiglare layer as described above, internal diffusion and external diffusion can be designed separately, and both antiglare property and suppression of glare are achieved. It can be set as an anti-glare film.
  • the antiglare film of the present invention is suitable for use as a protective film for polarizing plates of liquid crystal displays and the like because it suppresses glare and provides sufficient hardness.
  • the antiglare film 1 of the present invention is an antiglare film having an antiglare layer 11 on at least one surface of a substrate film 10 (FIG. 1 shows an example having the antiglare layer 11 only on one surface). ).
  • the anti-glare layer 11 includes particles A having a refractive index difference of 0.02 or more between the base resin 12 and the base resin 12 and a density exceeding 0.90 times the density of the base resin 12, and the density of the base resin 12. Particles B having a density of 0.90 times or less.
  • the surface 11a of the antiglare layer has a concavo-convex structure and exhibits antiglare properties by surface diffusion (note that the concavo-convex structure is exaggerated in FIG. 1).
  • the base film 10 is a base for supporting the antiglare layer 11 thereon, and a transparent plastic film, glass plate, or the like can be used as appropriate.
  • Specific materials of the base film 10 include polyethylene terephthalate (PET), polybutylene terephthalate, polyethylene naphthalate, polycarbonate, polyarylate, polyethylene, polypropylene, cyclopolyolefin, polystyrene, triacetyl cellulose (TAC), diacetyl cellulose, Examples thereof include poly (meth) acrylate, polyvinyl chloride, polyimide, polyamide, norbornene compound, and glass.
  • the average thickness of the base film 10 is not particularly limited, but is preferably from 25 ⁇ m to 500 ⁇ m, particularly preferably from 50 ⁇ m to 300 ⁇ m, from the viewpoints of strength, ease of handling, cost, etc. for use as an antiglare film.
  • a film that has been subjected to an easy adhesion treatment such as a plasma treatment, a corona discharge treatment, a far-ultraviolet irradiation treatment, or an undercoat easy adhesion layer can be used.
  • the “base resin 12” in the present invention refers to particles (particles A, B, and other particles) to be described later, and components (resins) other than additives, among the materials forming the coating film (antiglare layer).
  • the base resin 12 one type of resin may be used alone, or two or more types of resins may be used in combination.
  • the anti-glare layer 11 is formed by dispersing or dissolving the particles (particles A, B, and other particles) and additives described later in the base resin 12 and drying and / or curing the base resin 12. Is done.
  • the actinic radiation curable resin that can be contained in the base resin 12 of the antiglare layer 11 of the present invention is an actinic radiation curable resin raw material containing an uncured actinic radiation curable resin (prepolymer) or a photopolymerizable monomer. It is a resin cured through a crosslinking reaction or the like by irradiation with active rays such as ultraviolet rays (UV) and electron beams (EB).
  • active rays such as ultraviolet rays (UV) and electron beams (EB).
  • UV ultraviolet rays
  • EB electron beams
  • an ultraviolet curable resin cured by ultraviolet rays is particularly preferable.
  • the actinic radiation curable resin used as a raw material may be used alone or in combination of two or more.
  • a (meth) acrylic prepolymer is a photopolymerizable prepolymer that can be cross-linked and cured by irradiation with actinic radiation. It has two or more acryloyl groups in one molecule. It becomes a structure.
  • (meth) acrylic prepolymer and urethane (meth) acrylate, polyester (meth) acrylate, epoxy (meth) acrylate, melamine (meth) acrylate, polyfluoroalkyl (meth) acrylate, silicone (meth) ) Acrylate or the like can be used. These may be used individually by 1 type and may use 2 or more types together.
  • photopolymerizable monomers include monofunctional (meth) acrylic monomers such as 2-ethylhexyl (meth) acrylate, 2-hydroxyethyl (meth) acrylate, 2-hydroxypropyl (meth) acrylate, butoxyethyl (meth) acrylate, etc. 1,6-hexanediol di (meth) acrylate, neopentyl glycol di (meth) acrylate, diethylene glycol di (meth) acrylate, polyethylene glycol di (meth) acrylate, hydroxypivalate ester neopentyl glycol di (meth) acrylate, etc.
  • monofunctional (meth) acrylic monomers such as 2-ethylhexyl (meth) acrylate, 2-hydroxyethyl (meth) acrylate, 2-hydroxypropyl (meth) acrylate, butoxyethyl (meth) acrylate, etc.
  • Bifunctional acrylic monomers pentaerythritol tetra (meth) acrylate, dipentaerythritol hexa (meth) acrylate, trimethylolpropane tri (meth) acrylate, pentaerythritol Ritorutori (meth) acrylate polyfunctional (meth) acrylic monomers such like. These may be used individually by 1 type and may use 2 or more types together.
  • photopolymerization initiator examples include acetophenone, benzophenone, Michler's ketone, benzoin, benzylmethyl ketal, benzoylbenzoate, ⁇ -acyl oxime ester, thioxanthone and the like.
  • the size of the inorganic component in the organic-inorganic hybrid resin is 800 nm or less at which no geometrical scattering of light occurs, and when particles are used, particles having an average particle size of 800 nm or less are used.
  • the inorganic component include metal oxides such as silica and titania, and silica is preferred.
  • the silica is more preferably reactive silica having a photopolymerizable reactive group introduced on the surface.
  • the “average particle diameter” of the particles refers to the value of the volume average particle diameter (D50) that can be measured by a laser diffraction / scattering method. The average particle diameter when the shape of the particles is not spherical is calculated as a sphere equivalent diameter.
  • the content of the inorganic component in the organic-inorganic hybrid resin is preferably 10% by mass or more, more preferably 20% by mass or more. Moreover, Preferably it is 65 mass% or less, More preferably, it is 40 mass% or less.
  • the organic component in the organic-inorganic hybrid resin is a compound having a polymerizable unsaturated group polymerizable with the inorganic component (preferably reactive silica) (for example, having two or more polymerizable unsaturated groups in the molecule). And polyunsaturated organic compounds, unitary unsaturated organic compounds having one polymerizable unsaturated group in the molecule, and the like.
  • thermoplastic resin examples include polyvinyl acetal resins such as polyvinyl butyral and polyvinyl formal; polyester resins; (meth) acrylic resins; polyolefin resins such as polyethylene and polypropylene; A thermoplastic resin may be used individually by 1 type, and may use 2 or more types together.
  • the refractive index of the base resin 12 is preferably 1.40 or more, more preferably 1.45 or more, and particularly preferably 1.50 or more. Moreover, it is preferably 1.8 or less, more preferably 1.75 or less, and particularly preferably 1.7 or less.
  • the “refractive index of the base resin 12” means the refractive index of only the base resin 12 in which no particles exist in the antiglare layer after the coating film (antiglare layer) is formed.
  • the inorganic component of the organic-inorganic hybrid resin when the organic-inorganic hybrid resin is used as the “base resin 12” is included in the “refractive index and density of the base resin 12”.
  • the density of the base resin 12 is preferably 1.1 g / cm 3 or more, more preferably 1.15 g / cm 3 or more, and particularly preferably 1.2 g / cm 3 or more. Further, it is preferably 1.7 g / cm 3 or less, and particularly preferably more preferably 1.65 g / cm 3 or less, 1.6 g / cm 3 or less.
  • the “density of the base resin 12” means the density of only the base resin 12 in which no particles, solvents or the like are present in the antiglare layer forming material before the coating film (antiglare layer) is formed.
  • the antiglare layer 11 of the present invention has a difference in refractive index with the base resin 12 of 0.02 or more and a density exceeding 0.90 times the density of the base resin 12 (that is, with the base resin 12).
  • particles having a refractive index difference of 0.02 or more particles excluding particles B described later are contained. Since the particle A has a specific refractive index difference from the base resin 12, it contributes to internal diffusion and affects the internal haze value.
  • the refractive index difference between the particles A and the base resin 12 is 0.02 or more, preferably 0.03 or more, more preferably 0.05 or more, and more preferably 0.1 or more. More preferably, it is particularly preferably 0.15 or more, and most preferably 0.2 or more. Further, it is preferably 0.5 or less, more preferably 0.48 or less, further preferably 0.46 or less, particularly preferably 0.43 or less, and 0.4 or less. Most preferably it is. If it is within the above range, the internal haze value is likely to be in an appropriate range, and the antiglare property of the antiglare layer 11 is likely to be improved.
  • Either the refractive index of the particle A or the base resin 12 may be large.
  • one type of particle may be used alone, or two or more types may be used in combination.
  • the distribution of the particles A in the antiglare layer 11 is not particularly limited. However, since the particles A are particles that contribute to internal diffusion, it is desirable that they are uniformly dispersed in the antiglare layer 11 ( As will be described later, it is desirable that the particles B are unevenly distributed near the surface of the antiglare layer 11).
  • the average particle diameter of the particles A is not particularly limited, but is preferably 0.8 ⁇ m or more, more preferably 1.0 ⁇ m or more, and particularly preferably 1.2 ⁇ m or more. Moreover, it is preferable that it is 3 micrometers or less, it is more preferable that it is 2.5 micrometers or less, and it is especially preferable that it is 2 micrometers or less.
  • the average particle size is in the above range, the particles A are easily dispersed uniformly in the antiglare layer 11, the internal haze value is easily in an appropriate range, and the antiglare property is easily improved.
  • the density of the particles B is 0.90 times or less of the density of the base resin 12, but is preferably 0.85 times or less, more preferably 0.8 times or less, and particularly preferably 0.7 times or less. Within the above range, the particles B are likely to float and the antiglare property is likely to be improved by forming a concavo-convex structure on the surface.
  • the type of particle B (substance used as the material of particle B) is not particularly limited.
  • polyethylene density: 0.94 g / cm 3
  • polypropylene density: 0.91 g / cm 3
  • ethylene-propylene Polyolefin particles such as polymer and propylene-butene copolymer
  • polystyrene density: 1.05 g / cm 3 particles and the like.
  • the polyolefin particles are particularly preferable as the particles B because they have a low density and are likely to float; the scratch resistance of the antiglare layer is easily improved;
  • the density of the particles B is preferably 0.6 g / cm 3 or more, and particularly preferably 0.7 g / cm 3 or more. Further, it is preferably 1.2 g / cm 3 or less, particularly preferably 1.0 g / cm 3 or less.
  • the average particle diameter of the particles B is not particularly limited, but is preferably 1 ⁇ m or more, more preferably 1.5 ⁇ m or more, and particularly preferably 2 ⁇ m or more. Further, it is preferably 7 ⁇ m or less, more preferably 5 ⁇ m or less, and particularly preferably 4 ⁇ m or less.
  • the average particle size of the particles B is preferably 0.1 times or more, more preferably 0.3 times or more, and more preferably 0.5 times or more with respect to the average layer thickness of the antiglare layer 11. It is particularly preferred. Further, it is preferably 1 times or less, more preferably 0.95 times or less, and particularly preferably 0.9 times or less. When the average particle size is in the above range, the particles B are likely to float in the antiglare layer 11 and the external diffusion is easily controlled.
  • the shape of the particle B is not particularly limited.
  • the average particle diameter is a sphere equivalent diameter.
  • the particles B are desirably amorphous particles from the viewpoint of antiglare properties.
  • the content ratio of the particles A and the particles B is preferably 0.2 parts by mass or more, more preferably 0.3 parts by mass or more with respect to 1 part by mass of the particles B, and It is particularly preferably 4 parts by mass or more. Further, with respect to 1 part by mass of the particle B, the particle A is preferably 2 parts by mass or less, more preferably 1.5 parts by mass or less, and particularly preferably 1 part by mass or less. Within the above range, the particles B easily float on the surface.
  • the total ratio of the particles A and the particles B contained in the antiglare layer 11 is preferably 1% by mass or more, and preferably 3% by mass or more with respect to the entire antiglare layer 11 (solid content). Particularly preferred. Moreover, it is preferable that it is 15 mass% or less, and it is especially preferable that it is 10 mass% or less.
  • the antiglare layer 11 may contain other particles that do not fall under the particle A or the particle B as long as the effects and performances exhibited in the present invention are not impaired.
  • the total ratio of the particles A and the particles B is preferably 70% by mass or more, more preferably 90% by mass or more, and 100% by mass or more (that is, the particle A also includes all particles). It is particularly preferred that no other particles not applicable to the particles B are included. However, inorganic components contained in the organic-inorganic hybrid resin are not included in the “all particles”.
  • the base resin in which the fine particles are dispersed is dried and cured to form a coating film (antiglare layer)
  • the fine particles are precipitated in the antiglare layer, and the surface of the antiglare layer
  • the particles B having a low density it is possible to form a concavo-convex structure that can sufficiently contribute to external diffusion on the surface of the antiglare layer without adding a separate precipitation inhibitor.
  • particles particles that are neither particles A nor particles B
  • lubricants if necessary, other particles (particles that are neither particles A nor particles B); lubricants, fluorescent brighteners, pigments, dyes, antistatic agents, flame retardants, antibacterial agents, Additives such as fungicides, antioxidants, plasticizers, leveling agents, flow regulators, antifoaming agents, dispersants, crosslinking agents, light stabilizers, and the like can be included.
  • the anti-glare layer-forming liquid containing the base resin, the particles A, the particles B, and the above-mentioned other components, a solvent and the like as necessary is applied onto the base film 10.
  • the anti-glare layer 11 is formed by applying to the substrate and drying and curing.
  • the antiglare layer forming liquid is a liquid in which components such as particles (particle A and particle B) are dispersed and dissolved.
  • the actinic radiation curable resin is a liquid, but the antiglare layer forming liquid may contain a solvent (such as an organic solvent).
  • a solvent such as an organic solvent
  • thermoplastic resin it is preferable to contain a solvent.
  • solvents include toluene, xylene, methyl ethyl ketone, ethyl acetate, butyl acetate, ethyl alcohol, isopropyl alcohol, butyl alcohol and the like.
  • a solvent may be used individually by 1 type and may use 2 or more types together.
  • the antiglare layer forming liquid may be prepared by directly mixing the components contained in the antiglare layer 11, or by preparing a dispersion / solution in which each component is dispersed / dissolved in advance. A dispersion / solution may be mixed to form an antiglare layer forming liquid.
  • a conventionally known method can be used as a method of applying the antiglare layer forming liquid on the base film 10.
  • a conventionally known method can be used.
  • it can be applied using a bar coater, die coater, blade coater, spin coater, roll coater, gravure coater, flow coater (curtain coater), spray coater, screen printing or the like.
  • the antiglare layer 11 can be obtained by drying as necessary and then curing by irradiation with actinic radiation.
  • actinic radiation a method of irradiating actinic radiation, a method of irradiating ultraviolet rays in a wavelength region of 100 nm to 400 nm, preferably 200 nm to 400 nm emitted from an ultrahigh pressure mercury lamp, a high pressure mercury lamp, a low pressure mercury lamp, a carbon arc, a metal halide lamp or the like, or a scanning type
  • a method of irradiating an electron beam having a wavelength region of 100 nm or less emitted from a curtain type electron beam accelerator a method of irradiating ultraviolet rays in a wavelength region of 100 nm to 400 nm, preferably 200 nm to 400 nm emitted from an ultrahigh pressure mercury lamp, a high pressure mercury lamp, a low pressure mercury lamp, a carbon arc, a metal halide lamp or the like
  • the thickness (average layer thickness; H in FIG. 1) of the antiglare layer 11 is not particularly limited, but is preferably 2 ⁇ m or more, particularly preferably 3 ⁇ m or more. Moreover, 10 micrometers or less are preferable and 7 micrometers or less are especially preferable. If it is at least the above lower limit, sufficient hardness can be exhibited. Also, curling is unlikely to occur when the upper limit is not exceeded.
  • Example 1 As a base film, a transparent TAC (triacetyl cellulose) film having a thickness of 80 ⁇ m is used, and an antiglare layer-forming liquid 1 having the following formulation is applied to one surface thereof, dried, and irradiated with ultraviolet rays. A 5 ⁇ m antiglare layer was formed to produce an antiglare film.
  • the density and refractive index of only the solid content from which the solvent was removed were described as the density and refractive index of the material of the liquid composition, respectively.
  • ⁇ Anti-glare layer forming liquid 1 composition > ⁇ UV curable acrylic resin 12.5g (80% solid content, density 1.20 g / cm 3 , refractive index 1.52) ⁇ 0.3g of thermoplastic butyral resin (100% solid content, density 1.20 g / cm 3 , refractive index 1.48) ⁇ 0.6g melamine resin particles (100% solid content, average particle size 1.2 ⁇ m, density 1.50 g / cm 3 , refractive index 1.66) ⁇ Polypropylene particles 1g (100% solid content, average particle size 2.5 ⁇ m, density 0.91 g / cm 3 , refractive index 1.48) ⁇ Fluorine leveling agent 0.05g (Solid content 40%, solvent 60%) ⁇ Photopolymerization initiator 0.4g (Solid content 100%) ⁇ Solvent 30.7g
  • a 20 ⁇ m-thick transparent adhesive sheet was applied to the antiglare layer side of the produced antiglare film to obtain a sample for calculating an internal haze value.
  • the haze value of the transparent adhesive sheet and the haze value of the sample for calculating the internal haze value were measured according to JIS K7136. And the value which deducted the haze value of this transparent adhesive sheet and the haze value of a base film (transparent TAC film) from the haze value of the sample for internal haze value calculation was made into the internal haze value.
  • the haze value of the transparent adhesive sheet is subtracted in the process of calculation as described above, the internal haze value, the external haze value, and the total haze value are not directly affected, but the viewpoint of increasing the measurement accuracy. Therefore, a transparent adhesive sheet having a haze value of less than 5% was used.
  • ⁇ Glitter test> The entire screen of a high-definition tablet PC (pixel number: 224 dpi) was displayed in green, and the antiglare film produced was placed thereon, and the glare was visually determined. The case where glare was hardly seen was indicated as “ ⁇ ”, and the case where glare was seen was designated as “X”.
  • Example 2 An antiglare film was prepared and evaluated in the same manner as in Experimental Example 1 except that the antiglare layer forming liquid 1 in Experimental Example 1 was changed to the antiglare layer forming liquid 2 having the following formulation.
  • ⁇ Anti-glare layer forming liquid 2 composition > ⁇ 19.2 g of UV curable organic / inorganic hybrid acrylic resin (50% solid content, density 1.40 g / cm 3 , refractive index 1.49) ⁇ 0.3g of thermoplastic butyral resin (100% solid content, density 1.20 g / cm 3 , refractive index 1.48) ⁇ Melamine resin particles 0.45g (100% solid content, average particle size 1.2 ⁇ m, density 1.50 g / cm 3 , refractive index 1.66) ⁇ Polypropylene particles 1g (100% solid content, average particle size 2.5 ⁇ m, density 0.91 g / cm 3 , refractive index 1.48) ⁇ Fluorine leveling agent 0.05g (Solid content 40%, solvent 60%) ⁇ Photopolymerization initiator 0.4g (Solid content 100%) ⁇ Solvent 22.1g
  • the UV curable organic / inorganic hybrid acrylic resin used in the antiglare layer forming liquid 2 is a type of organic / inorganic hybrid resin that contains reactive nano silica and forms an organic / inorganic composite by UV irradiation.
  • Example 3 An antiglare film was prepared and evaluated in the same manner as in Experimental Example 1 except that the antiglare layer forming liquid 1 in Experimental Example 1 was changed to the antiglare layer forming liquid 3 having the following formulation.
  • ⁇ Anti-glare layer forming liquid 3 composition > ⁇ UV curable acrylic resin 12.5g (80% solid content, density 1.20 g / cm 3 , refractive index 1.52) ⁇ 0.3g of thermoplastic butyral resin (100% solid content, density 1.20 g / cm 3 , refractive index 1.48) ⁇ 0.6g melamine resin particles (100% solid content, average particle size 1.2 ⁇ m, density 1.50 g / cm 3 , refractive index 1.66) ⁇ Fluorine leveling agent 0.05g (Solid content 40%, solvent 60%) ⁇ Photopolymerization initiator 0.4g (Solid content 100%) ⁇ Solvent 28.0g
  • Example 4 An antiglare film was prepared and evaluated in the same manner as in Experimental Example 1 except that the antiglare layer forming liquid 1 in Experimental Example 1 was changed to the antiglare layer forming liquid 4 having the following formulation.
  • ⁇ Anti-glare layer forming liquid 4 composition > ⁇ UV curable acrylic resin 12.5g (80% solid content, density 1.20 g / cm 3 , refractive index 1.52) ⁇ 0.3g of thermoplastic butyral resin (100% solid content, density 1.20 g / cm 3 , refractive index 1.48) ⁇ Polypropylene particles 1g (100% solid content, average particle size 2.5 ⁇ m, density 0.91 g / cm 3 , refractive index 1.48) ⁇ Fluorine leveling agent 0.05g (Solid content 40%, solvent 60%) ⁇ Photopolymerization initiator 0.4g (Solid content 100%) ⁇ Solvent 29.0g
  • Example 5 An antiglare film was prepared and evaluated in the same manner as in Experimental Example 1 except that the antiglare layer forming liquid 1 in Experimental Example 1 was changed to the antiglare layer forming liquid 5 having the following formulation.
  • ⁇ Anti-glare layer forming liquid 5 composition > ⁇ UV curable acrylic resin 12.5g (80% solid content, density 1.20 g / cm 3 , refractive index 1.52) ⁇ 0.3g of thermoplastic butyral resin (100% solid content, density 1.20 g / cm 3 , refractive index 1.48) ⁇ 0.6g melamine resin particles (100% solid content, average particle size 1.2 ⁇ m, density 1.50 g / cm 3 , refractive index 1.66) ⁇ Polymethyl methacrylate particles 1g (100% solid content, average particle size 3.0 ⁇ m, density 1.20 g / cm 3 , refractive index 1.50) ⁇ Fluorine leveling agent 0.05g (Solid content 40%, solvent 60%) ⁇ Photopolymerization initiator 0.4g (Solid content 100%) ⁇ Solvent 30.7g
  • Example 6 In Experimental Example 1, an antiglare film was prepared and evaluated in the same manner as in Experimental Example 1 except that the average thickness of the antiglare layer was 6.5 ⁇ m.
  • Example 7 In Experimental Example 1, an antiglare film was prepared and evaluated in the same manner as in Experimental Example 1 except that the average thickness of the antiglare layer was 2.0 ⁇ m.
  • the antiglare films of Experimental Example 1 and Experimental Example 2 containing the two types of particles A and B in the present invention in the antiglare layer contain the particles B, sufficient surface irregularities are formed, The dazzling result was good. Further, the internal haze value was as designed, and the glare was good. On the other hand, the antiglare film of Experimental Example 3 containing no particles B was inferior in antiglare properties, and the antiglare film of Experimental Example 4 containing no particles A was glaring. Further, although two types of particles are used, the antiglare layer of Experimental Example 5 in which an antiglare layer was produced using polymethyl methacrylate particles (particle B ′) having a high density instead of the particles B of the present invention was used.
  • the antiglare film was inferior in antiglare properties.
  • the antiglare film of Example 6 was obtained by increasing the film thickness up to 2.4 times the average particle diameter of the particles B, but it showed good results.
  • the antiglare film of Experimental Example 7 had good results, but had an appearance that was thinner than the average particle diameter of the particles B and had a strong granular feeling (many large irregularities were noticeable). .
  • the anti-glare film of the present invention is excellent in anti-glare property, hardly generates glare, and can cope with high definition. It is what is used.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Laminated Bodies (AREA)
PCT/JP2019/009763 2018-03-19 2019-03-11 防眩フィルム WO2019181615A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020207021511A KR20200132844A (ko) 2018-03-19 2019-03-11 방현 필름
CN201980008569.3A CN111602073A (zh) 2018-03-19 2019-03-11 防眩膜

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018050633A JP7323986B2 (ja) 2018-03-19 2018-03-19 防眩フィルム
JP2018-050633 2018-03-19

Publications (1)

Publication Number Publication Date
WO2019181615A1 true WO2019181615A1 (ja) 2019-09-26

Family

ID=67986220

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2019/009763 WO2019181615A1 (ja) 2018-03-19 2019-03-11 防眩フィルム

Country Status (5)

Country Link
JP (1) JP7323986B2 (zh)
KR (1) KR20200132844A (zh)
CN (1) CN111602073A (zh)
TW (1) TW201938359A (zh)
WO (1) WO2019181615A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111580191A (zh) 2020-05-09 2020-08-25 惠州市华星光电技术有限公司 表面处理方法、抗眩光涂层及显示装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001091707A (ja) * 1999-09-24 2001-04-06 Fuji Photo Film Co Ltd 防眩性フィルム、防眩性反射防止フィルム及び画像表示装置
JP2009086329A (ja) * 2007-09-28 2009-04-23 Dainippon Printing Co Ltd 光学積層体、その製造方法、偏光板及び画像表示装置
JP2009265651A (ja) * 2008-04-02 2009-11-12 Fujifilm Corp 光学フィルム、偏光板、および画像表示装置
JP2012098425A (ja) * 2010-10-29 2012-05-24 Fujifilm Corp 光拡散フィルム、偏光板、画像表示装置、及び光拡散フィルムの製造方法
WO2013047184A1 (ja) * 2011-09-29 2013-04-04 株式会社きもと 防眩性フィルム及び表示装置
JP2014112257A (ja) * 2014-03-05 2014-06-19 Dainippon Printing Co Ltd 光学シート

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0618706A (ja) 1992-01-24 1994-01-28 Dainippon Printing Co Ltd 耐擦傷性防眩フィルム、偏光板及びその製造方法
JP3507719B2 (ja) 1998-02-17 2004-03-15 大日本印刷株式会社 防眩フィルム、偏光素子及び表示装置
JP2002082206A (ja) 2000-09-06 2002-03-22 Toppan Printing Co Ltd 防眩性反射防止フィルム
JP2009230155A (ja) * 2002-04-24 2009-10-08 Dainippon Printing Co Ltd 防眩性フィルム、偏光素子及び画像表示装置
JP4215458B2 (ja) 2002-06-26 2009-01-28 日本製紙株式会社 防眩フィルム
JP4271922B2 (ja) * 2002-09-30 2009-06-03 富士フイルム株式会社 防眩性反射防止フィルム、偏光板、それを用いた液晶表示装置および防眩性反射防止フィルムの製造方法
TW200517458A (en) * 2003-10-06 2005-06-01 Dainippon Printing Co Ltd Antiglare film
KR100711483B1 (ko) * 2004-03-29 2007-04-24 가부시키가이샤 도모에가와 세이시쇼 방현 필름
JP2008122832A (ja) * 2006-11-15 2008-05-29 Toppan Printing Co Ltd 防眩性光拡散部材
KR20100094469A (ko) * 2007-10-23 2010-08-26 스미또모 가가꾸 가부시키가이샤 방현 필름, 방현성 편광판 및 화상 표시 장치
JP2013178533A (ja) 2013-04-05 2013-09-09 Nitto Denko Corp 防眩性ハードコートフィルム、それを用いた偏光板および画像表示装置、ならびに防眩性ハードコートフィルムの製造方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001091707A (ja) * 1999-09-24 2001-04-06 Fuji Photo Film Co Ltd 防眩性フィルム、防眩性反射防止フィルム及び画像表示装置
JP2009086329A (ja) * 2007-09-28 2009-04-23 Dainippon Printing Co Ltd 光学積層体、その製造方法、偏光板及び画像表示装置
JP2009265651A (ja) * 2008-04-02 2009-11-12 Fujifilm Corp 光学フィルム、偏光板、および画像表示装置
JP2012098425A (ja) * 2010-10-29 2012-05-24 Fujifilm Corp 光拡散フィルム、偏光板、画像表示装置、及び光拡散フィルムの製造方法
WO2013047184A1 (ja) * 2011-09-29 2013-04-04 株式会社きもと 防眩性フィルム及び表示装置
JP2014112257A (ja) * 2014-03-05 2014-06-19 Dainippon Printing Co Ltd 光学シート

Also Published As

Publication number Publication date
KR20200132844A (ko) 2020-11-25
CN111602073A (zh) 2020-08-28
TW201938359A (zh) 2019-10-01
JP2019164189A (ja) 2019-09-26
JP7323986B2 (ja) 2023-08-09

Similar Documents

Publication Publication Date Title
TWI301096B (en) Anti glare hard coat film
TWI534002B (zh) 光學積層體及光學積層體之製造方法
JP4238936B2 (ja) 防眩性フィルム、光学フィルム、防眩性偏光子、および表示装置
JP4788830B1 (ja) 防眩性フィルム、防眩性フィルムの製造方法、偏光板及び画像表示装置
JP5008734B2 (ja) 防眩性フィルム、防眩性フィルムの製造方法、偏光板及び画像表示装置
TWI628247B (zh) Anti-glare film, anti-glare film manufacturing method, polarizing plate and image display device
US8220940B2 (en) Antiglare film, antireflection film, polarizing plate and image display device
JP2008233870A (ja) 防眩性フィルムおよびその製造方法、ならびに表示装置
JP2010009049A (ja) 非球状粒子を有する光学フィルム
JP2010256851A (ja) 防眩ハードコートフィルム
CN107250963B (zh) 触摸面板、显示装置和光学片以及光学片的选择方法和光学片的制造方法
JP2007196421A (ja) 防眩材およびディスプレイ
JPH11286083A (ja) 防眩性フイルム
JP2007058204A (ja) 防眩ハードコートフィルム、及びそれを用いた表示装置
TWI635358B (zh) Hard coating film and display element with surface member
JP2002248712A (ja) 防眩シート
WO2019181615A1 (ja) 防眩フィルム
JP2015132744A (ja) アンチグレアフィルム
TWI684897B (zh) 飛散防止薄片
JP2004046258A (ja) 防眩フィルムおよびその製造方法
JP2004025787A (ja) 防眩フィルム
TWI491931B (zh) Anti-glare film, anti-glare film manufacturing method, polarizing plate and image display device
JP4582305B2 (ja) 反射防止フィルムの製造方法
JP4206682B2 (ja) 防眩ハードコートフィルム及びその製造方法
JP6597075B2 (ja) 帯電防止性防眩ハードコートフィルム、帯電防止性防眩ハードコートフィルムの製造方法、及び該ハードコートフィルムを用いた表示装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19771363

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19771363

Country of ref document: EP

Kind code of ref document: A1