WO2021095746A1 - 防眩性フィルム、防眩性フィルムの設計方法、防眩性フィルムの製造方法、光学部材および画像表示装置 - Google Patents

防眩性フィルム、防眩性フィルムの設計方法、防眩性フィルムの製造方法、光学部材および画像表示装置 Download PDF

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WO2021095746A1
WO2021095746A1 PCT/JP2020/041989 JP2020041989W WO2021095746A1 WO 2021095746 A1 WO2021095746 A1 WO 2021095746A1 JP 2020041989 W JP2020041989 W JP 2020041989W WO 2021095746 A1 WO2021095746 A1 WO 2021095746A1
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Prior art keywords
antiglare
antiglare film
film
antiglare layer
resin
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PCT/JP2020/041989
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English (en)
French (fr)
Japanese (ja)
Inventor
寛也 遠藤
尚樹 橋本
豪彦 安藤
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日東電工株式会社
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Priority to KR1020227016187A priority Critical patent/KR20220098354A/ko
Priority to CN202080078119.4A priority patent/CN114651197A/zh
Publication of WO2021095746A1 publication Critical patent/WO2021095746A1/ja

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    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/02—Physical, chemical or physicochemical properties
    • B32B7/023—Optical properties
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G02B5/0268—Diffusing elements; Afocal elements characterized by the fabrication or manufacturing method
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133504—Diffusing, scattering, diffracting elements
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements

Definitions

  • the present invention relates to an antiglare film, a method for designing an antiglare film, a method for manufacturing an antiglare film, an optical member, and an image display device.
  • image display devices such as a cathode ray tube display device (CRT), a liquid crystal display device (LCD), a plasma display panel (PDP), and an electroluminescence display (ELD) are provided with fluorescent lamps and sunlight on the surface of the image display device.
  • CTR cathode ray tube display device
  • LCD liquid crystal display device
  • PDP plasma display panel
  • ELD electroluminescence display
  • Anti-glare treatment is applied to prevent contrast deterioration due to reflection of external light and reflection of images, and in particular, as the screen size of image display devices increases, anti-glare films are used.
  • the number of image display devices installed is increasing.
  • Patent Documents 1 and 2 There are many documents describing antiglare films, for example, Patent Documents 1 and 2.
  • the haze value needs to be within an appropriate range from the viewpoint of antiglare and display characteristics.
  • the haze value of the antiglare film may change significantly, and as a result, the antiglare property or display characteristics may deteriorate.
  • an object of the present invention is to provide an antiglare film whose haze value is hard to change, a method for designing an antiglare film, a method for manufacturing an antiglare film, an optical member, and an image display device.
  • the antiglare film of the present invention is used.
  • the antiglare layer (B) contains a resin for forming an antiglare layer (B1) and at least one kind of haze adjusting filler (B2).
  • the haze adjusting filler (B2) has a displacement of 1540 nm or less and an elastic recovery rate of 30% or more when a load of 2000 ⁇ N is applied by the nanoindentation method.
  • the total haze value of the antiglare film is in the range of 5 to 45%.
  • the method for designing the antiglare film of the present invention is A method for designing an antiglare film in which an antiglare layer (B) is laminated on a light transmissive base material (A).
  • the antiglare layer (B) contains a resin for forming an antiglare layer (B1) and at least one kind of haze adjusting filler (B2).
  • the haze adjusting filler (B2) has a displacement amount of 1540 nm or less and an elastic recovery rate of 30% or more when a load of 2000 ⁇ N is applied by the nanoindentation method.
  • the total haze value of the antiglare film is in the range of 5 to 45%.
  • the method for producing the first antiglare film of the present invention is The step of designing the antiglare film according to the method for designing the antiglare film of the present invention is included.
  • the antiglare film is the antiglare film of the present invention.
  • the method for producing the second antiglare film of the present invention is The step of forming the antiglare layer (B) for forming the antiglare layer (B) on the light transmissive base material (A) is included.
  • the antiglare layer (B) forming step is a coating step of applying a coating liquid on the light transmissive base material (A) and drying the coated coating liquid to form a coating film.
  • Including the coating film forming step The method for producing an antiglare film of the present invention, wherein the coating liquid contains the antiglare layer forming resin (B1) forming material and the haze adjusting filler (B2).
  • the term "method for producing the antiglare film of the present invention” refers to the method for producing the first antiglare film of the present invention and the second prevention of the present invention unless otherwise specified. Includes both with a method of making a dazzling film.
  • the optical member of the present invention is an optical member including the antiglare film of the present invention.
  • the image display device of the present invention is an image display device including the antiglare film of the present invention or the optical member of the present invention.
  • an antiglare film whose haze value is hard to change, a method for designing an antiglare film, a method for manufacturing an antiglare film, an optical member, and an image display device.
  • FIG. 1 is a cross-sectional view showing an example of the antiglare film of the present invention.
  • the refractive index of the haze adjusting filler (B2) is smaller than the refractive index of the antiglare layer forming resin (B1), and the antiglare layer forming resin is formed.
  • the difference in refractive index between (B1) and the haze adjusting filler (B2) may be more than 0.001 and less than 0.15 in absolute value.
  • the haze adjusting filler (B2) may be particles.
  • the method for producing an antiglare film of the present invention may include, for example, a step of forming the antiglare layer (B) and a curing step of curing the coating film.
  • the optical member of the present invention may be, for example, a polarizing plate.
  • FIG. 1 shows an example of the configuration of the antiglare film of the present invention.
  • the antiglare layer (B) 12 is laminated on one surface of the light transmissive base material (A) 11.
  • the antiglare layer (B) 12 contains particles (haze adjusting filler (B2)) 12b and a thixotropy-imparting agent 12c in the resin layer 12a.
  • the resin layer 12a is formed of the antiglare layer forming resin (B1).
  • the particles 12b correspond to the haze adjusting filler (B2) in the antiglare film of the present invention.
  • the material, size, etc. of the haze adjustment filler (B2) are not particularly limited. Examples of these will be described later.
  • the haze adjusting filler (B2) is only one type of particles 12b.
  • the present invention is not limited to this, and the haze adjusting filler (B2) may be of one type or a plurality of types. Further, the haze adjusting filler (B2) may be, for example, particles, but may be other than particles.
  • the thixotropy-imparting agent 12c is optional in the antiglare film of the present invention, and may or may not be contained. Further, the antiglare film of the present invention may or may not contain a filler other than the haze adjusting filler (B2). Examples of the other filler include the thixotropy-imparting agent 12c shown in FIG. Examples of the other filler include particles other than the haze adjusting filler (B2).
  • the antiglare film of the present invention may or may not contain layers other than the light transmissive base material (A) and the antiglare layer (B).
  • the other layer may be one layer or two or more layers, and the position thereof is not particularly limited.
  • the light-transmitting base material (A) may be laminated on the light-transmitting base material (A) via the other layer.
  • the other layer may be laminated on the surface of the antiglare layer (B) opposite to the light transmissive base material (A).
  • the other layer is not particularly limited, and may be, for example, a low refractive index layer, an antireflection layer, a high refractive index layer, a hard coat layer, an adhesive layer, or the like.
  • the antiglare film of the present invention has a total haze value in the range of 5 to 45%. If the total haze value is too small, the anti-glare property will decrease. If the total haze value is too large, the display characteristics are likely to be deteriorated, such as the image becoming unclear and the contrast in a dark place being lowered.
  • the total haze value may be, for example, 7% or more, 10% or more, 12% or more, or 15% or more, for example, 40% or less, 35% or less, 32% or less, 30% or less, 27% or less, or. It may be 25% or less.
  • the "total haze value" is the haze value (cloudiness) of the entire antiglare film according to JIS K 7136 (2000 version).
  • irregularities are formed on the surface of the antiglare layer (B) (the surface opposite to the light transmissive base material (A)).
  • the uneven shape for example, the haze value (cloudiness) of the antiglare film, the display characteristics, and the like can be controlled.
  • the uneven shape of the surface of the antiglare layer (B) (for example, surface roughness, average height of unevenness, average distance between convex portions, etc.) is not particularly limited, and is, for example, according to a general antiglare film. Alternatively, it can be set as appropriate with reference to it.
  • each of the light transmissive base material (A), the antiglare layer (B), and the other layers will be described with further examples.
  • the antiglare layer (B) is an antiglare hard coat layer
  • the present invention is not limited thereto.
  • the light-transmitting base material (A) is not particularly limited, and examples thereof include a transparent plastic film base material.
  • the transparent plastic film base material is not particularly limited, but is preferably one having excellent visible light transmittance (preferably 90% or more) and excellent transparency (preferably one having a haze value of 1% or less).
  • the transparent plastic film base material described in JP-A-2008-90263 can be mentioned.
  • the transparent plastic film base material one having less birefringence optically is preferably used.
  • the antiglare film of the present invention can also be used as a protective film for a polarizing plate, and in this case, as the transparent plastic film base material, triacetyl cellulose (TAC), polycarbonate, acrylic polymer, etc.
  • TAC triacetyl cellulose
  • a film formed of a polyolefin or the like having a cyclic or norbornene structure is preferable.
  • the transparent plastic film base material may be the polarizer itself.
  • the polarizing plate can be made thinner.
  • the transparent plastic film base material is a polarizer
  • the antiglare layer (B) serves as a protective layer.
  • the antiglare film also functions as a cover plate when mounted on the surface of a liquid crystal cell, for example.
  • the thickness of the light transmissive base material (A) is not particularly limited, but in consideration of workability such as strength and handleability and thin layer property, for example, 10 to 500 ⁇ m and 20 to 300 ⁇ m. , Or in the range of 30-200 ⁇ m.
  • the refractive index of the light transmissive substrate (A) is not particularly limited. The refractive index is, for example, in the range of 1.30 to 1.80 or 1.40 to 1.70.
  • the "refractive index" refers to a refractive index having a wavelength of 550 nm unless otherwise specified.
  • the method for measuring the refractive index is not particularly limited, but in the case of the refractive index of a fine substance such as particles, for example, the Becke method can be used for measurement.
  • the Becke method is the refractive index of a standard refracting solution when the contour of the sample disappears or becomes blurred when the measurement sample is dispersed in a standard refracting solution on a slide glass and observed under a microscope. It is a measurement method to be performed.
  • the method for measuring the refractive index of a measurement object whose refractive index cannot be measured by the Becke method is not particularly limited, but for example, It can be measured using a general refractometer (equipment for measuring the refractive index).
  • the refractometer is also not particularly limited, and examples thereof include an Abbe refractometer. Examples of the Abbe refractometer include a multi-wavelength Abbe refractometer DR-M2 / 1550 (trade name) manufactured by Atago Co., Ltd.
  • the resin contained in the light transmissive base material (A) may contain an acrylic resin.
  • the light transmissive base material (A) may be an acrylic film.
  • the antiglare layer (B) contains, as described above, the antiglare layer forming resin (B1) and at least one kind of haze adjusting filler (B2).
  • a coating liquid containing the antiglare layer forming resin (B1), the haze adjusting filler (B2) and a solvent is applied to the light-transmitting base material. It is formed by coating on at least one surface of (A) to form a coating film, and then removing the solvent from the coating film.
  • the antiglare layer forming resin (B1) (hereinafter, may be simply referred to as “resin (B1)” or “resin”) is not particularly limited, and for example, only one type of resin may be used. Two or more kinds of resins may be used together.
  • the resin (B1) may contain, for example, an acrylate resin (also referred to as an acrylic resin), or may contain, for example, a urethane acrylate resin.
  • the resin (B1) may be, for example, a copolymer of a curable urethane acrylate resin and a polyfunctional acrylate.
  • the resin (B1) is not limited to the acrylate resin and the like, and examples thereof include thermosetting resins and ionizing radiation curable resins that are cured by ultraviolet rays or light.
  • thermosetting resins examples thereof include thermosetting resins and ionizing radiation curable resins that are cured by ultraviolet rays or light.
  • a commercially available thermosetting resin, an ultraviolet curable resin, or the like can also be used.
  • thermosetting resin or the ultraviolet curable resin for example, a curable compound having at least one of an acrylate group and a methacrylate group that is cured by heat, light (ultraviolet rays, etc.) or an electron beam can be used.
  • Silicone resin, polyester resin, polyether resin, epoxy resin, urethane resin, alkyd resin, spiroacetal resin, polybutadiene resin, polythiol polyene resin, oligomers such as methacrylate and prepolymers of polyfunctional compounds such as polyhydric alcohol Can be mentioned. These may be used alone or in combination of two or more.
  • a reactive diluent having at least one group of an acrylate group and a methacrylate group can also be used.
  • the reactive diluent for example, the reactive diluent described in JP-A-2008-88309 can be used, and includes, for example, monofunctional acrylate, monofunctional methacrylate, polyfunctional acrylate, polyfunctional methacrylate and the like.
  • the reactive diluent trifunctional or higher functional acrylates and trifunctional or higher functional methacrylates are preferable. This is because the hardness of the antiglare layer (B) can be made excellent.
  • the reactive diluent include butanediol glycerin ether diacrylate, isocyanuric acid acrylate, and isocyanuric acid methacrylate. These may be used alone or in combination of two or more.
  • the refractive index of the resin (B1) is not particularly limited, but may be, for example, 1.48 or more, 1.49 or more, 1.50 or more, or 1.51 or more, and for example, 1.60 or less, 1.59 or less. , 1.58 or less, or 1.57 or less.
  • the antiglare film of the present invention becomes, for example, an antiglare film having excellent light resistance, heat resistance, humidification heat resistance, etc., and whose haze value is unlikely to change. That is, it is considered that the haze adjusting filler (B2) is hard to be deformed and easily returns to the original shape and size even if it is deformed, so that the haze value of the entire antiglare film is also hard to change.
  • the displacement amount of the haze adjusting filler (B2) may be, for example, 1500 nm or less, 1400 nm or less, 1300 nm or less, 1200 nm or less, 1100 nm or less, 1000 nm or less, or 900 nm or less, and the lower limit is not particularly limited. Ideally, it is 0, for example, a value exceeding 0.
  • the elastic recovery rate of the haze adjusting filler (B2) is, for example, 35% or more, 40% or more, 45% or more, 50% or more, 60% or more, 70% or more, 80% or more, or 90% or more.
  • the upper limit may be not particularly limited, but ideally it is 100%, for example, 100% or less or less than 100%.
  • the haze adjusting filler (B2) is not particularly limited, and for example, as described above, one type may be used alone, or two or more types may be used in combination. Further, as described above, the haze adjusting filler (B2) may be, for example, particles.
  • the measurement conditions of the nanoindentation method are not particularly limited, but for example, the measurement can be performed under the measurement conditions described in Examples described later.
  • the measuring device of the nanoindentation method is not particularly limited, and for example, the measuring device (nanoindenter) described in the examples described later can be used for measurement.
  • the method for identifying the filler used in the actual antiglare film is not particularly limited, but for example, the antiglare film is subjected to spectrum measurement by Raman spectroscopy and mass spectrometry by time-of-flight secondary ion mass spectrometry. , Or the physical properties (for example, material, size, composition, etc.) may be confirmed by measurement by cross-sectional analysis or the like with a transmission electron microscope. Whether or not the filler used in the antiglare film satisfies the condition of the haze adjusting filler (B2) of the present invention is determined, for example, after identifying the filler used in the antiglare film. A filler having the same physical properties can be measured and confirmed by the nanoindentation method.
  • the haze adjusting filler (B2) makes the surface of the antiglare layer (B) to be formed uneven to impart antiglare properties, and also controls the haze value of the antiglare layer (B). Main function.
  • the haze value of the antiglare layer (B) can be designed, for example, by controlling the difference in refractive index between the haze adjusting filler (B2) and the antiglare layer forming resin (B1).
  • the haze adjusting filler (B2) is not particularly limited, and may be, for example, inorganic particles or organic particles.
  • the inorganic particles are not particularly limited, and for example, silicon oxide particles, titanium oxide particles, aluminum oxide particles, zinc oxide particles, tin oxide particles, calcium carbonate particles, barium sulfate particles, talc particles, kaolin particles, calcium sulfate particles and the like. Can be mentioned.
  • the organic particles are not particularly limited, and examples of the organic particles containing no polystyrene include polymethylmethacrylate resin powder (PMMA particles), silicone resin powder, polycarbonate resin powder, acrylic styrene resin powder, and benzoguanamine resin powder. Examples thereof include melamine resin powder, polyolefin resin powder, polyester resin powder, polyamide resin powder, polyimide resin powder, and polyfluorinated ethylene resin powder.
  • examples of the haze adjusting filler (B2) containing polystyrene include particles formed by mixing or copolymerizing polystyrene with the material of these inorganic particles or organic particles. Specific examples thereof include particles of a copolymer of polymethylmethacrylate (PMMA) and polystyrene. As described above, one type of these haze adjusting fillers (B2) may be used alone, or two or more types may be used in combination.
  • the refractive index of the haze adjusting filler (B2) may be, for example, 1.535 or less, for example, 1.525 or less, 1.515 or less, 1.505 or less, or 1.495 or less. Further, the refractive index of the haze adjusting filler (B2) may be, for example, 1.42 or more, 1.43 or more, 1.44 or more, or 1.45 or more.
  • the refractive index of the haze adjusting filler (B2) may be smaller than the refractive index of the antiglare layer forming resin (B1), or may be the same as the refractive index of the antiglare layer forming resin (B1). It may be larger than the refractive index of the antiglare layer forming resin (B1).
  • the difference in refractive index between the antiglare layer forming resin (B1) and the haze adjusting filler (B2) is not particularly limited, but as described above, for example, the absolute value is more than 0.001 and less than 0.15. There may be.
  • the difference in refractive index between the antiglare layer forming resin (B1) and the haze adjusting filler (B2) is preferably as large as possible from the viewpoint of increasing internal scattering in order to improve glare. Further, the difference in refractive index between the antiglare layer forming resin (B1) and the haze adjusting filler (B2) is preferably as small as possible from the viewpoint of suppressing internal scattering in order to obtain high transparency.
  • the absolute value of the difference in refractive index between the antiglare layer forming resin (B1) and the haze adjusting filler (B2) may be, for example, 0.002 or more, 0.003 or more, 0.004 or more, or 0.005 or more. It may be, for example, 0.14 or less, 0.13 or less, 0.12 or less, or 0.11 or less.
  • the weight average particle size of the haze adjusting filler (B2) is not particularly limited, but may be, for example, 1.0 ⁇ m or more, 2.0 ⁇ m or more, 3.0 ⁇ m or more, or 4.0 ⁇ m or more, for example, 7.0 ⁇ m or less. , 8.0 ⁇ m or less, 9.0 ⁇ m or less, or 10.0 ⁇ m or less.
  • the weight average particle size of the particles can be measured by, for example, the Coulter counting method. For example, using a particle size distribution measuring device (trade name: Coulter Multisizer, manufactured by Beckman Coulter) using the pore electric resistance method, an electrolytic solution corresponding to the volume of the particles when the particles pass through the pores.
  • the haze adjusting filler (B2) is a particle
  • its shape is not particularly limited, and may be, for example, a bead-shaped substantially spherical shape or an irregular shape such as powder. , Approximately spherical particles are preferable, and substantially spherical particles having an aspect ratio of 1.5 or less are preferable, and spherical particles are most preferable.
  • the content of the haze adjusting filler (B2) in the antiglare layer (B) is not particularly limited, but is, for example, 1% by mass or more and 3% by mass with respect to the total mass of the antiglare layer forming resin (B1). % Or more, 5% by mass or more, or 7% by mass or more, for example, 20% by mass or less, 18% by mass or less, 16% by mass or less, or 14% by mass or less. Further, the antiglare layer (B) may or may not contain particles other than the haze adjusting filler (B2), as will be described later. For example, in the method for producing an antiglare film of the present invention, the surface shape of the antiglare layer (B) may be adjusted by adjusting the content of the haze adjusting filler (B2) and the other particles. ..
  • the antiglare layer (B) may or may not contain other components other than the antiglare layer forming resin (B1) and the haze adjusting filler (B2).
  • the other component include fillers other than the haze adjusting filler (B2).
  • the other filler is not particularly limited, and examples thereof include particles other than the haze adjusting filler (B2), a thixotropic agent, and inorganic nanoparticles.
  • the antiglare layer (B) contains the thixotropy-imparting agent, it is possible to easily control the aggregated state of particles such as the haze adjusting filler (B2).
  • the thixotropy-imparting agent may be at least one selected from the group consisting of, for example, organic clay, oxidized polyolefin and modified urea. Further, the thixotropy-imparting agent may be, for example, a thickener.
  • the organic clay is preferably a layered clay that has been organically treated in order to improve the affinity with the resin.
  • the organic clay may be prepared in-house or a commercially available product may be used. Examples of the commercially available products include Lucentite SAN, Lucentite STN, Lucentite SEN, Lucentite SPN, Somasif ME-100, Somasif MAE, Somasif MTE, Somasif MEE, and Somasif MPE (trade names, all of which are Corp Chemical Co., Ltd.).
  • the above-mentioned polyolefin oxide may be prepared in-house or a commercially available product may be used.
  • the commercially available product include Disparon 4200-20 (trade name, manufactured by Kusumoto Kasei Co., Ltd.), Fronon SA300 (trade name, manufactured by Kyoeisha Chemical Co., Ltd.) and the like.
  • the modified urea is a reaction product of an isocyanate monomer or an adduct thereof and an organic amine.
  • the modified urea may be prepared in-house or a commercially available product may be used. Examples of the commercially available product include BYK410 (manufactured by Big Chemie) and the like.
  • the thixotropy-imparting agent may be used alone or in combination of two or more.
  • the ratio of the thixotropy-imparting agent in the antiglare layer (B) is preferably in the range of 0.2 to 5 parts by weight, more preferably in the range of 0.4 to 4 parts by weight, based on 100 parts by weight of the resin. is there.
  • the thixotropy-imparting agent is contained in the range of 0.2 to 5 parts by weight with respect to 100 parts by weight (mass) of the resin of the antiglare layer (B). Good.
  • the method for producing the antiglare film of the present invention is not particularly limited and may be produced by any method, but it is preferably produced by the method for producing the antiglare film of the present invention.
  • the method for producing the antiglare film can be carried out as follows, for example.
  • the antiglare layer (B) is formed on the light transmissive base material (A) (antiglare layer (B) forming step). As a result, a laminate of the light-transmitting base material (A) and the antiglare layer (B) is produced.
  • the antiglare layer (B) forming step includes a coating step of applying a coating liquid on the light transmissive base material (A) and a drying coating of the coated coating liquid. It includes a coating film forming step of forming a film. Further, for example, as described above, the antiglare layer (B) forming step may further include a curing step of curing the coating film. The curing can be performed, for example, after the drying, but is not limited thereto.
  • the curing can be performed by, for example, heating, light irradiation, or the like.
  • the light is not particularly limited, but may be, for example, ultraviolet rays or the like.
  • the light source for light irradiation is not particularly limited, but may be, for example, a high-pressure mercury lamp or the like.
  • the coating liquid contains a resin and a solvent as described above.
  • the coating liquid is, for example, an antiglare layer forming material (coating liquid) containing the antiglare layer forming resin (B1), the haze adjusting filler (B2), the thixotropy-imparting agent, and the solvent. May be good.
  • the coating liquid preferably exhibits thixotropic properties, and the Ti value defined by the following formula is preferably in the range of 1.3 to 3.5, more preferably 1.4 to 3. It is in the range of 2, and more preferably in the range of 1.5 to 3.
  • Ti value ⁇ 1 / ⁇ 2
  • ⁇ 1 is a viscosity measured under the condition of a shear rate of 20 (1 / s) using a HAAKE Leostress RS6000
  • ⁇ 2 is a viscosity measured using a HAAKE Leostress RS6000 with a shear rate of 200 (1 / s). It is the viscosity measured under the conditions of.
  • the Ti value is 1.3 or more, problems such as appearance defects and deterioration of antiglare and white blur characteristics are unlikely to occur. Further, when the Ti value is 3.5 or less, problems such as the particles not agglomerating and becoming dispersed are unlikely to occur.
  • the coating liquid may or may not contain a thixotropy-imparting agent, but it is preferable to contain the thixotropy-imparting agent because it tends to exhibit thixotropy. Further, as described above, when the coating liquid contains the thixotropy-imparting agent, an effect of preventing the sedimentation of the particles (thixotropy effect) can be obtained. Further, the surface shape of the antiglare film can be freely controlled in a wider range by the shear aggregation of the thixotropy-imparting agent itself.
  • the solvent is not particularly limited, and various solvents can be used, and one type may be used alone or two or more types may be used in combination.
  • the optimum solvent type and solvent ratio may be appropriately selected in order to obtain the antiglare film of the present invention according to the composition of the resin, the types and contents of the particles and the thixotropy-imparting agent.
  • the solvent is not particularly limited, and is, for example, alcohols such as methanol, ethanol, isopropyl alcohol (IPA), butanol, t-butyl alcohol (TBA), 2-methoxyethanol; acetone, methyl ethyl ketone, methyl isobutyl ketone, cyclopenta.
  • Ketones such as non; esters such as methyl acetate, ethyl acetate and butyl acetate; ethers such as diisopropyl ether and propylene glycol monomethyl ether; glycols such as ethylene glycol and propylene glycol; cellosolves such as ethyl cellosolve and butyl cellosolve; Aliphatic hydrocarbons such as hexane, heptane and octane; aromatic hydrocarbons such as benzene, toluene and xylene can be mentioned.
  • the solvent may contain a hydrocarbon solvent and a ketone solvent.
  • the hydrocarbon solvent may be, for example, an aromatic hydrocarbon.
  • the aromatic hydrocarbon may be at least one selected from the group consisting of, for example, toluene, o-xylene, m-xylene, p-xylene, ethylbenzene, and benzene.
  • the ketone solvent may be, for example, at least one selected from the group consisting of cyclopentanone and acetone, methyl ethyl ketone, methyl isobutyl ketone, diethyl ketone, cyclohexanone, isophorone, and acetophenone.
  • the solvent preferably contains, for example, the hydrocarbon solvent (eg toluene) in order to dissolve the thixotropy-imparting agent (eg, thickener).
  • the solvent may be, for example, a solvent in which the hydrocarbon solvent and the ketone solvent are mixed at a mass ratio of 90:10 to 10:90.
  • the mass ratio of the hydrocarbon solvent to the ketone solvent may be, for example, 80:20 to 20:80, 70:30 to 30:70, or 40:60 to 60:40.
  • the hydrocarbon solvent may be toluene and the ketone solvent may be methyl ethyl ketone.
  • the solvent may contain, for example, toluene and further contain at least one selected from the group consisting of ethyl acetate, butyl acetate, IPA, methyl isobutyl ketone, methyl ethyl ketone, methanol, ethanol, and TBA. Good.
  • a good solvent for the acrylic film can be preferably used.
  • a solvent containing a hydrocarbon solvent and a ketone solvent may be used.
  • the hydrocarbon solvent may be, for example, an aromatic hydrocarbon.
  • the aromatic hydrocarbon may be at least one selected from the group consisting of, for example, toluene, o-xylene, m-xylene, p-xylene, ethylbenzene, and benzene.
  • the ketone solvent may be, for example, at least one selected from the group consisting of cyclopentanone, acetone, methyl ethyl ketone, methyl isobutyl ketone, diethyl ketone, cyclohexanone, isophorone, and acetophenone.
  • the solvent may be, for example, a solvent in which the hydrocarbon solvent and the ketone solvent are mixed at a mass ratio of 90:10 to 10:90.
  • the mass ratio of the hydrocarbon solvent to the ketone solvent may be, for example, 80:20 to 20:80, 70:30 to 30:70, or 40:60 to 60:40.
  • the hydrocarbon solvent may be toluene and the ketone solvent may be methyl ethyl ketone.
  • TAC triacetyl cellulose
  • A light-transmitting base material
  • A intermediate layer
  • TAC triacetyl cellulose
  • a good solvent for TAC can be preferably used.
  • the solvent include ethyl acetate, methyl ethyl ketone, cyclopentanone and the like.
  • the thixotropy to the antiglare layer forming material can be satisfactorily exhibited when the thixotropy-imparting agent is contained.
  • organic clay toluene and xylene can be preferably used alone or in combination.
  • oxide polyolefin methyl ethyl ketone, ethyl acetate, and propylene glycol monomethyl ether are preferably used alone. It can be used or used in combination.
  • modified urea is used, butyl acetate and methyl isobutyl ketone can be preferably used alone or in combination.
  • leveling agents can be added to the antiglare layer forming material.
  • a fluorine-based or silicone-based leveling agent can be used for the purpose of preventing uneven coating (uniformizing the coated surface).
  • an antireflection layer low refractive index layer
  • a layer containing an interlayer filler is placed on the antiglare layer (B).
  • the leveling agent can be appropriately selected depending on the case where it is formed in.
  • the thixotropy-imparting agent by incorporating the thixotropy-imparting agent, the thixotropy can be exhibited in the coating liquid, so that uneven coating is less likely to occur.
  • the options of the leveling agent can be expanded.
  • the blending amount of the leveling agent is, for example, 5 parts by weight or less, preferably 0.01 to 5 parts by weight, based on 100 parts by weight of the resin.
  • Pigments, fillers, dispersants, plasticizers, ultraviolet absorbers, surfactants, antifouling agents, antioxidants, etc. are added to the antiglare layer forming material as needed, as long as the performance is not impaired. May be done.
  • One type of these additives may be used alone, or two or more types may be used in combination.
  • antiglare layer forming material for example, a conventionally known photopolymerization initiator as described in JP-A-2008-88309 can be used.
  • Examples of the method of applying the coating liquid onto the light transmissive substrate (A) to form a coating film include a fanten coating method, a die coating method, a spin coating method, a spray coating method, and a gravure coating method. , Roll coating method, bar coating method and other coating methods can be used.
  • the coating film is dried and cured to form an antiglare layer (B).
  • the drying may be, for example, natural drying, air drying by blowing wind, heat drying, or a method in which these are combined.
  • the drying temperature of the coating liquid for forming the antiglare layer (B) may be, for example, in the range of 30 to 200 ° C.
  • the drying temperature may be, for example, 40 ° C. or higher, 50 ° C. or higher, 60 ° C. or higher, 70 ° C. or higher, 80 ° C. or higher, 90 ° C. or higher, or 100 ° C. or higher, 190 ° C. or lower, 180 ° C. or lower, 170. It may be °C or less, 160 °C or less, 150 °C or less, 140 °C or less, 135 °C or less, 130 °C or less, 120 °C or less, or 110 °C or less.
  • the drying time is not particularly limited, but may be, for example, 30 seconds or more, 40 seconds or more, 50 seconds or more, or 60 seconds or more, 150 seconds or less, 130 seconds or less, 110 seconds or less, or 90 seconds or less. You may.
  • the means for curing the coating film is not particularly limited, but ultraviolet curing is preferable.
  • the irradiation amount of the energy radiation source is preferably 50 to 500 mJ / cm 2 as the integrated exposure amount at the ultraviolet wavelength of 365 nm.
  • the irradiation amount is 50 mJ / cm 2 or more, curing tends to proceed sufficiently, and the hardness of the antiglare layer (B) formed tends to increase. Further, if it is 500 mJ / cm 2 or less, coloring of the formed antiglare layer (B) can be prevented.
  • a laminate of the light transmissive base material (A) and the antiglare layer (B) can be produced.
  • This laminate may be used as it is as the antiglare film of the present invention, or for example, the other layer may be formed on the antiglare layer (B) to obtain the antiglare film of the present invention.
  • the method for forming the other layer is not particularly limited, and is, for example, the same as or similar to the method for forming a general low refractive index layer, antireflection layer, high refractive index layer, hard coat layer, adhesive layer, or the like. Can be done with.
  • the optical member of the present invention is not particularly limited, but may be, for example, a polarizing plate.
  • the polarizing plate is also not particularly limited, but may include, for example, the antiglare film and the polarizer of the present invention, and may further contain other components. Each component of the polarizing plate may be bonded by, for example, an adhesive or an adhesive.
  • the image display device of the present invention is not particularly limited, and any image display device may be used, and examples thereof include a liquid crystal display device and an organic EL display device.
  • the image display device of the present invention is, for example, an image display device having the antiglare film of the present invention on the surface on the viewing side, and the image display device may have a black matrix pattern.
  • the light transmissive base material (A) side can be attached to an optical member used in an LCD via an adhesive or an adhesive.
  • the surface of the light transmissive base material (A) may be subjected to various surface treatments as described above.
  • the surface shape of the antiglare film can be freely controlled in a wide range. Therefore, the optical properties that can be obtained by laminating the antiglare film with other optical members using an adhesive, an adhesive, or the like cover a wide range corresponding to the surface shape of the antiglare film. ..
  • the optical member examples include a polarizer or a polarizing plate.
  • the polarizing plate generally has a transparent protective film on one side or both sides of the polarizing element.
  • the transparent protective films on the front and back sides may be made of the same material or different materials.
  • Polarizing plates are usually arranged on both sides of the liquid crystal cell. Further, the polarizing plates are arranged so that the absorption axes of the two polarizing plates are substantially orthogonal to each other.
  • the configuration of the polarizing plate on which the antiglare film is laminated is not particularly limited, but for example, the transparent protective film, the polarizer and the transparent protective film are laminated in this order on the antiglare film. Alternatively, the polarizing element and the transparent protective film may be laminated in this order on the antiglare film.
  • the configuration of the image display device of the present invention is not particularly limited, and may be, for example, the same configuration as a general image display device.
  • it can be manufactured by appropriately assembling optical members such as a liquid crystal cell and a polarizing plate, and if necessary, each component such as a lighting system (backlight or the like) and incorporating a drive circuit.
  • the use of the image display device of the present invention is not particularly limited, and it can be used for any purpose.
  • Applications include, for example, OA devices such as personal computer monitors, laptop computers, and copiers, mobile phones, clocks, digital cameras, mobile information terminals (PDAs), portable devices such as portable game machines, video cameras, televisions, and microwave ovens.
  • Home electrical equipment such as, back monitor, car navigation system monitor, in-vehicle equipment such as car audio, exhibition equipment such as information monitor for commercial stores, security equipment such as monitoring monitor, nursing care monitor, medical monitor Nursing care / medical equipment, etc.
  • the haze adjusting filler (B2) used in the examples and the haze adjusting filler used in the comparative examples are measured by the following method and measured by Raman spectroscopy. Spectral measurement and measurement by nano-indentation method were performed.
  • the refractive index at a wavelength of 550 nm was measured by the Becke method described above.
  • the standard refracting liquid Cargill standard refracting liquid manufactured by Moritex Co., Ltd. was used.
  • the refractive index at a wavelength of 550 nm was measured using the above-mentioned multi-wavelength Abbe refractometer DR-M2 / 1550 (trade name) manufactured by Atago Co., Ltd.
  • Example 1 As the resin contained in the antiglare layer forming material, 50 parts by weight of an ultraviolet curable urethane acrylate resin (manufactured by Nippon Synthetic Chemical Industry Co., Ltd., trade name "UV1700TL”, solid content 80%) and pentaeristol triacrylate are used. A mixture of 50 parts by weight of a polyfunctional acrylate (manufactured by Osaka Organic Chemical Industry Co., Ltd., trade name "Viscoat # 300", 100% solid content) as a main component was prepared.
  • This resin is a material for forming the antiglare layer forming resin (B1), and as described later, it can be cured by light irradiation to form the antiglare layer forming resin (B1).
  • Crosslinked polymethyl methacrylate particles manufactured by Sekisui Kasei Kogyo Co., Ltd., trade name "Techpolymer”, weight average particle size: 3 ⁇ m, refractive index: 1.525 per 100 parts by weight of resin solid content of the resin.
  • silicone particles manufactured by Momentive Performance Materials Japan (same as above), trade name "Tospearl 130", weight average grain shape: 3 ⁇ m, refractive index: 1.42) is 1.5 parts by weight
  • As the thixotropy-imparting agent 1.5 parts by weight of synthetic smectite (manufactured by Corp Chemical Co., Ltd., trade name "Lucentite SAN"), which is an organic clay, and a photopolymerization initiator (manufactured by BASF, trade name "OMNIRAD907”) are used.
  • the crosslinked polymethyl methacrylate particles "techpolymer” are particles composed of a copolymer of Pst (polystyrene) and PMMA (polymethyl methacrylate), and correspond to a haze adjusting filler (B2). Further, the silicone particles "Tospearl 130" also correspond to the haze adjusting filler (B2).
  • the organic clay was diluted with toluene so that the solid content was 6%.
  • This mixture is diluted with a mixed solvent of toluene / ethyl acetate / cyclopentanone (CPN) (weight ratio 35/41/24) so that the solid content concentration becomes 55% by weight, and an ultrasonic disperser is used.
  • CPN toluene / ethyl acetate / cyclopentanone
  • an antiglare layer (B) forming step of forming the antiglare layer (B) on the light transmissive base material (A) was performed. That is, first, the antiglare layer forming material (coating liquid) corresponds to a triacetyl cellulose base material (thickness 60 ⁇ m, FUJIFILM Corporation, trade name TG60UL, light transmissive base material (A)). Painted on top.
  • an ultraviolet ray having a wavelength of 365 nm is irradiated with a high-pressure mercury lamp so that the integrated light intensity is 300 mJ / cm 2, and the resin in the antiglare layer forming material (coating liquid) is cured, and further, at 80 ° C.
  • the mixture was heated for 60 seconds and dried to form an antiglare layer (B) in which a haze adjusting filler (B2) was dispersed in an antiglare layer forming resin (B1) having a thickness of 8 ⁇ m.
  • B1 antiglare layer forming resin having a thickness of 8 ⁇ m
  • the antiglare layer (B) is laminated on the light transmissive base material (A), and the antiglare layer (B) is formed of the antiglare layer forming resin (B1). It contained a haze adjusting filler (B2).
  • Example 2 Antiglare layer forming material in the same manner as in Example 1 except that the blending amounts of the "techpolymer” (filler for haze adjustment (B2)), the “Tospearl 130", and the “Lucentite SAN” were changed. (Coating liquid) was prepared. Specifically, it is as follows. As the resin contained in the antiglare layer forming material, 50 parts by weight of an ultraviolet curable urethane acrylate resin (manufactured by Nippon Synthetic Chemical Industry Co., Ltd., trade name "UV1700TL”, solid content 80%) and pentaeristol triacrylate are used.
  • an ultraviolet curable urethane acrylate resin manufactured by Nippon Synthetic Chemical Industry Co., Ltd., trade name "UV1700TL", solid content 80%
  • pentaeristol triacrylate pentaeristol triacrylate
  • a mixture of 50 parts by weight of a polyfunctional acrylate (manufactured by Osaka Organic Chemical Industry Co., Ltd., trade name "Viscoat # 300", 100% solid content) as a main component was prepared.
  • Crosslinked polymethyl methacrylate particles (manufactured by Sekisui Kasei Kogyo Co., Ltd., trade name "Techpolymer”, weight average particle size: 3 ⁇ m, refractive index: 1.525 per 100 parts by weight of resin solid content of the resin.
  • silicone particles manufactured by Momentive Performance Materials Japan (same as above), trade name "Tospearl 130", weight average grain shape: 3 ⁇ m, refractive index: 1.42) is 1.4 parts by weight
  • As the thixotropy-imparting agent 1.5 parts by weight of synthetic smectite (manufactured by Corp Chemical Co., Ltd., trade name "Lucentite SAN"), which is an organic clay, and a photopolymerization initiator (manufactured by BASF, trade name "OMNIRAD907”) are used.
  • a leveling agent manufactured by Kyoeisha Chemical Co., Ltd., trade name "LE303", solid content 40%
  • the organic clay was diluted with toluene so that the solid content was 6%.
  • This mixture is diluted with a mixed solvent of toluene / ethyl acetate / cyclopentanone (CPN) (weight ratio 35/41/24) so that the solid content concentration becomes 52% by weight, and an ultrasonic disperser is used.
  • CPN ethyl acetate / cyclopentanone
  • Example 2 the same as in Example 1 except that the antiglare layer forming material (coating liquid) prepared in this example was used instead of the antiglare layer forming material (coating liquid) prepared in Example 1.
  • the antiglare layer (B) forming step was carried out to produce the antiglare film of this example.
  • the antiglare layer (B) is laminated on the light transmissive base material (A), and the antiglare layer (B) is formed of the antiglare layer forming resin (B1). It contained a haze adjusting filler (B2).
  • Example 3 The antiglare layer forming material (coating liquid) was used in the same manner as in Example 1 except that the blending amount of the "techpolymer” (filler for haze adjustment (B2)) was changed from 3 parts by weight to 4 parts by weight. Prepared. Specifically, it is as follows. As the resin contained in the antiglare layer forming material, 50 parts by weight of an ultraviolet curable urethane acrylate resin (manufactured by Nippon Synthetic Chemical Industry Co., Ltd., trade name "UV1700TL", solid content 80%) and pentaeristol triacrylate are used.
  • an ultraviolet curable urethane acrylate resin manufactured by Nippon Synthetic Chemical Industry Co., Ltd., trade name "UV1700TL", solid content 80%
  • pentaeristol triacrylate pentaeristol triacrylate
  • a mixture of 50 parts by weight of a polyfunctional acrylate (manufactured by Osaka Organic Chemical Industry Co., Ltd., trade name "Viscoat # 300", 100% solid content) as a main component was prepared.
  • Crosslinked polymethyl methacrylate particles (manufactured by Sekisui Kasei Kogyo Co., Ltd., trade name "Techpolymer”, weight average particle size: 3 ⁇ m, refractive index: 1.525 per 100 parts by weight of resin solid content of the resin.
  • silicone particles manufactured by Momentive Performance Materials Japan (same as above), trade name "Tospearl 130", weight average grain shape: 3 ⁇ m, refractive index: 1.42) is 1.5 parts by weight
  • As the thixotropy-imparting agent 1.5 parts by weight of synthetic smectite (manufactured by Corp Chemical Co., Ltd., trade name "Lucentite SAN"), which is an organic clay, and a photopolymerization initiator (manufactured by BASF, trade name "OMNIRAD907”) are used.
  • a leveling agent manufactured by Kyoeisha Chemical Co., Ltd., trade name "LE303", solid content 40%
  • the organic clay was diluted with toluene so that the solid content was 6%.
  • This mixture is diluted with a mixed solvent of toluene / ethyl acetate / cyclopentanone (CPN) (weight ratio 35/41/24) so that the solid content concentration becomes 52% by weight, and an ultrasonic disperser is used.
  • CPN ethyl acetate / cyclopentanone
  • Example 2 the same as in Example 1 except that the antiglare layer forming material (coating liquid) prepared in this example was used instead of the antiglare layer forming material (coating liquid) prepared in Example 1.
  • the antiglare layer (B) forming step was carried out to produce the antiglare film of this example.
  • the antiglare layer (B) is laminated on the light transmissive base material (A), and the antiglare layer (B) is formed of the antiglare layer forming resin (B1). It contained a haze adjusting filler (B2).
  • Example 4 As the resin contained in the antiglare layer forming material, 50 parts by weight of an ultraviolet curable urethane acrylate resin (manufactured by Nippon Synthetic Chemical Industry Co., Ltd., trade name "UV1700TL”, solid content 80%) and pentaeristol triacrylate are used. A mixture of 50 parts by weight of a polyfunctional acrylate (manufactured by Osaka Organic Chemical Industry Co., Ltd., trade name "Viscoat # 300", 100% solid content) as a main component was prepared.
  • an ultraviolet curable urethane acrylate resin manufactured by Nippon Synthetic Chemical Industry Co., Ltd., trade name "UV1700TL”, solid content 80%
  • pentaeristol triacrylate pentaeristol triacrylate
  • Crosslinked polymethyl methacrylate particles manufactured by Sekisui Kasei Kogyo Co., Ltd., trade name "Techpolymer”, weight average particle size: 3 ⁇ m, refractive index: 1.535 per 100 parts by weight of resin solid content of the resin.
  • Is 4 parts by weight, 1.5 parts by weight of synthetic smectite manufactured by Corp Chemical Co., Ltd., trade name "Lucentite SAN", which is an organic clay as the thixotropy-imparting agent, and a photopolymerization initiator (manufactured by BASF).
  • the name “OMNIRAD907”) was mixed in 3 parts by weight, and the leveling agent (manufactured by Kyoeisha Chemical Co., Ltd., trade name "LE303", solid content 40%) was mixed in 0.15 parts by weight.
  • the organic clay was diluted with toluene so that the solid content was 6%.
  • This mixture is diluted with a mixed solvent of toluene / ethyl acetate / cyclopentanone (CPN) (weight ratio 35/41/24) so that the solid content concentration becomes 52% by weight, and an ultrasonic disperser is used.
  • CPN ethyl acetate / cyclopentanone
  • Anti-glare layer forming material was prepared.
  • the antiglare layer forming material does not contain the silicone particles "Tospearl 130", and the refractive index of the "techpolymer” (haze adjusting filler (B2)) is 1. It was different from Examples 1 to 3 in that it was 535.
  • Example 2 the same as in Example 1 except that the antiglare layer forming material (coating liquid) prepared in this example was used instead of the antiglare layer forming material (coating liquid) prepared in Example 1.
  • the antiglare layer (B) forming step was carried out to produce the antiglare film of this example.
  • the antiglare layer (B) is laminated on the light transmissive base material (A), and the antiglare layer (B) is formed of the antiglare layer forming resin (B1). It contained a haze adjusting filler (B2).
  • Example 5 As the "techpolymer” (filler for haze adjustment (B2)), a “techpolymer” having a refractive index of 1.515 was used instead of the “techpolymer” having a refractive index of 1.535. A material for forming an antiglare layer (coating liquid) was prepared in the same manner as in Example 4 except that the blending amount of the "techpolymer” was changed to 8 parts by weight.
  • an ultraviolet curable urethane acrylate resin manufactured by Nippon Synthetic Chemical Industry Co., Ltd., trade name "UV1700TL”, solid content 80%
  • a mixture of 50 parts by weight of a polyfunctional acrylate manufactured by Osaka Organic Chemical Industry Co., Ltd., trade name "Viscoat # 300", 100% solid content
  • pentaeristol triacrylate as a main component was prepared.
  • Crosslinked polymethyl methacrylate particles manufactured by Sekisui Kasei Kogyo Co., Ltd., trade name "Techpolymer”, weight average particle size: 3 ⁇ m, refractive index: 1.515
  • Is 8 parts by weight, 1.5 parts by weight of synthetic smectite manufactured by Corp Chemical Co., Ltd., trade name "Lucentite SAN"
  • synthetic smectite manufactured by Corp Chemical Co., Ltd., trade name "Lucentite SAN”
  • BASF photopolymerization initiator
  • the name “OMNIRAD907”) was mixed in 3 parts by weight, and the leveling agent (manufactured by Kyoeisha Chemical Co., Ltd., trade name “LE303", solid content 40%) was mixed in 0.15 parts by weight.
  • the organic clay was diluted with toluene so that the solid content was 6%.
  • This mixture is diluted with a mixed solvent of toluene / ethyl acetate / cyclopentanone (CPN) (weight ratio 35/41/24) so that the solid content concentration becomes 45% by weight, and an ultrasonic disperser is used.
  • CPN ethyl acetate / cyclopentanone
  • Anti-glare layer forming material was prepared.
  • Example 2 the same as in Example 1 except that the antiglare layer forming material (coating liquid) prepared in this example was used instead of the antiglare layer forming material (coating liquid) prepared in Example 1.
  • the antiglare layer (B) forming step was carried out to produce the antiglare film of this example.
  • the antiglare layer (B) is laminated on the light transmissive base material (A), and the antiglare layer (B) is formed of the antiglare layer forming resin (B1). It contained a haze adjusting filler (B2).
  • Example 6 As the "techpolymer” (filler for haze adjustment (B2)), a “techpolymer” having a refractive index of 1.505 was used instead of the “techpolymer” having a refractive index of 1.535. A material for forming an antiglare layer (coating liquid) was prepared in the same manner as in Example 4 except that the blending amount of the "techpolymer” was changed to 8 parts by weight.
  • an ultraviolet curable urethane acrylate resin manufactured by Nippon Synthetic Chemical Industry Co., Ltd., trade name "UV1700TL”, solid content 80%
  • a mixture of 50 parts by weight of a polyfunctional acrylate manufactured by Osaka Organic Chemical Industry Co., Ltd., trade name "Viscoat # 300", 100% solid content
  • pentaeristol triacrylate as a main component was prepared.
  • Crosslinked polymethyl methacrylate particles manufactured by Sekisui Kasei Kogyo Co., Ltd., trade name "Techpolymer”, weight average particle size: 3 ⁇ m, refractive index: 1.505 per 100 parts by weight of resin solid content of the resin.
  • Is 8 parts by weight, 1.5 parts by weight of synthetic smectite manufactured by Corp Chemical Co., Ltd., trade name "Lucentite SAN", which is an organic clay as the thixotropy-imparting agent, and a photopolymerization initiator (manufactured by BASF).
  • the name “OMNIRAD907”) was mixed in 3 parts by weight, and the leveling agent (manufactured by Kyoeisha Chemical Co., Ltd., trade name “LE303", solid content 40%) was mixed in 0.15 parts by weight.
  • the organic clay was diluted with toluene so that the solid content was 6%.
  • This mixture is diluted with a mixed solvent of toluene / ethyl acetate / cyclopentanone (CPN) (weight ratio 35/41/24) so that the solid content concentration becomes 45% by weight, and an ultrasonic disperser is used.
  • CPN ethyl acetate / cyclopentanone
  • Anti-glare layer forming material was prepared.
  • Example 2 the same as in Example 1 except that the antiglare layer forming material (coating liquid) prepared in this example was used instead of the antiglare layer forming material (coating liquid) prepared in Example 1.
  • the antiglare layer (B) forming step was carried out to produce the antiglare film of this example.
  • the antiglare layer (B) is laminated on the light transmissive base material (A), and the antiglare layer (B) is formed of the antiglare layer forming resin (B1). It contained a haze adjusting filler (B2).
  • Example 7 As the "techpolymer” (filler for haze adjustment (B2)), "techpolymer” having a refractive index of 1.495 instead of “techpolymer” having a refractive index of 1.535 (polystyrene, which is a polymer of PMMA). A material for forming an antiglare layer (coating liquid) was prepared in the same manner as in Example 4 except that (not included) was used and the blending amount of the "techpolymer” was changed to 5 parts by weight.
  • an ultraviolet curable urethane acrylate resin manufactured by Nippon Synthetic Chemical Industry Co., Ltd., trade name "UV1700TL”, solid content 80%
  • a mixture of 50 parts by weight of a polyfunctional acrylate manufactured by Osaka Organic Chemical Industry Co., Ltd., trade name "Viscoat # 300", 100% solid content
  • pentaeristol triacrylate as a main component was prepared.
  • Crosslinked polymethyl methacrylate particles manufactured by Sekisui Kasei Kogyo Co., Ltd., trade name "Techpolymer”, weight average particle size: 3 ⁇ m, refractive index: 1.505 per 100 parts by weight of resin solid content of the resin.
  • Is 8 parts by weight, 1.5 parts by weight of synthetic smectite manufactured by Corp Chemical Co., Ltd., trade name "Lucentite SAN", which is an organic clay as the thixotropy-imparting agent, and a photopolymerization initiator (manufactured by BASF).
  • the name “OMNIRAD907”) was mixed in 3 parts by weight, and the leveling agent (manufactured by Kyoeisha Chemical Co., Ltd., trade name “LE303", solid content 40%) was mixed in 0.15 parts by weight.
  • the organic clay was diluted with toluene so that the solid content was 6%.
  • This mixture is diluted with a mixed solvent of toluene / ethyl acetate / cyclopentanone (CPN) (weight ratio 35/41/24) so that the solid content concentration becomes 45% by weight, and an ultrasonic disperser is used.
  • CPN ethyl acetate / cyclopentanone
  • Anti-glare layer forming material was prepared.
  • Example 2 the same as in Example 1 except that the antiglare layer forming material (coating liquid) prepared in this example was used instead of the antiglare layer forming material (coating liquid) prepared in Example 1.
  • the antiglare layer (B) forming step was carried out to produce the antiglare film of this example.
  • the antiglare layer (B) is laminated on the light transmissive base material (A), and the antiglare layer (B) is formed of the antiglare layer forming resin (B1). It contained a haze adjusting filler (B2).
  • the antiglare layer is the same as in Example 4 except that the "techpolymer” having a refractive index of 1.555 is used instead of the “techpolymer” having a refractive index of 1.535.
  • a forming material (coating liquid) was prepared.
  • an ultraviolet curable urethane acrylate resin manufactured by Nippon Synthetic Chemical Industry Co., Ltd., trade name "UV1700TL”, solid content 80%
  • a mixture of 50 parts by weight of a polyfunctional acrylate manufactured by Osaka Organic Chemical Industry Co., Ltd., trade name "Viscoat # 300", 100% solid content
  • pentaeristol triacrylate as a main component was prepared.
  • Crosslinked polymethyl methacrylate particles manufactured by Sekisui Kasei Kogyo Co., Ltd., trade name "Techpolymer”, weight average particle size: 3 ⁇ m, refractive index: 1.555 per 100 parts by weight of resin solid content of the resin.
  • Is 4 parts by weight, 1.5 parts by weight of synthetic smectite manufactured by Corp Chemical Co., Ltd., trade name "Lucentite SAN", which is an organic clay as the thixotropy-imparting agent, and a photopolymerization initiator (manufactured by BASF).
  • the name “OMNIRAD907”) was mixed in 3 parts by weight, and the leveling agent (manufactured by Kyoeisha Chemical Co., Ltd., trade name "LE303", solid content 40%) was mixed in 0.15 parts by weight.
  • the organic clay was diluted with toluene so that the solid content was 6%.
  • This mixture is diluted with a mixed solvent of toluene / ethyl acetate / cyclopentanone (CPN) (weight ratio 35/41/24) so that the solid content concentration becomes 50% by weight, and an ultrasonic disperser is used.
  • CPN ethyl acetate / cyclopentanone
  • Anti-glare layer forming material was prepared.
  • Example 1 the protection of Example 1 except that the antiglare layer forming material (coating liquid) prepared in this comparative example was used instead of the antiglare layer forming material (coating liquid) prepared in Example 1.
  • a step similar to the step of forming the glare layer (B) was carried out to produce an antiglare film of this comparative example.
  • Comparative Example 2 A material for forming an antiglare layer (coating liquid) was prepared in the same manner as in Comparative Example 1 except that the blending amount of the "techpolymer" having a refractive index of 1.555 was changed to 5.5 parts by weight.
  • an ultraviolet curable urethane acrylate resin manufactured by Nippon Synthetic Chemical Industry Co., Ltd., trade name "UV1700TL”, solid content 80%
  • a mixture of 50 parts by weight of a polyfunctional acrylate manufactured by Osaka Organic Chemical Industry Co., Ltd., trade name "Viscoat # 300", 100% solid content
  • pentaeristol triacrylate as a main component was prepared.
  • Crosslinked polymethyl methacrylate particles manufactured by Sekisui Kasei Kogyo Co., Ltd., trade name "Techpolymer”, weight average particle size: 3 ⁇ m, refractive index: 1.555 per 100 parts by weight of resin solid content of the resin.
  • Example 1 the protection of Example 1 except that the antiglare layer forming material (coating liquid) prepared in this comparative example was used instead of the antiglare layer forming material (coating liquid) prepared in Example 1.
  • a step similar to the step of forming the glare layer (B) was carried out to produce an antiglare film of this comparative example.
  • Comparative Example 3 A material for forming an antiglare layer (coating liquid) was prepared in the same manner as in Comparative Example 1 except that the blending amount of the "techpolymer" having a refractive index of 1.555 was changed to 7.2 parts by weight.
  • an ultraviolet curable urethane acrylate resin manufactured by Nippon Synthetic Chemical Industry Co., Ltd., trade name "UV1700TL”, solid content 80%
  • a mixture of 50 parts by weight of a polyfunctional acrylate manufactured by Osaka Organic Chemical Industry Co., Ltd., trade name "Viscoat # 300", 100% solid content
  • pentaeristol triacrylate as a main component was prepared.
  • Crosslinked polymethyl methacrylate particles manufactured by Sekisui Kasei Kogyo Co., Ltd., trade name "Techpolymer”, weight average particle size: 3 ⁇ m, refractive index: 1.555 per 100 parts by weight of resin solid content of the resin.
  • silicone particles manufactured by Momentive Performance Materials Japan Co., Ltd., synthetic smectite which is an organic clay as the thixotropy-imparting agent (manufactured by Corp Chemical Co., Ltd., trade name "Lucentite SAN") 2.5 parts by weight, photopolymerization initiator (manufactured by BASF, trade name "OMNIRAD907”) by 5 parts by weight, leveling agent (manufactured by DIC Co., Ltd., trade name "Megafuck F470N", solid content 30%) 0.5 parts by weight was mixed.
  • the organic clay was diluted with ethyl acetate so that the solid content was 4.6%, and this mixture was used so that the solid content concentration was 32% by weight.
  • the antiglare layer forming material (coating liquid) was prepared by diluting with a toluene / ethyl acetate mixed solvent (weight ratio 93/7) using an ultrasonic disperser.
  • Example 1 the protection of Example 1 except that the antiglare layer forming material (coating liquid) prepared in this comparative example was used instead of the antiglare layer forming material (coating liquid) prepared in Example 1.
  • a step similar to the step of forming the glare layer (B) was carried out to produce an antiglare film of this comparative example.
  • the antiglare film of each of the above examples has a displacement of 1540 nm or less and an elastic recovery rate of 30% or more when a load of 2000 ⁇ N is applied by the nanoindentation method.
  • a haze adjusting filler (B2) satisfying the condition of being present was used.
  • the antiglare film of each of the above-mentioned examples has an absolute value of a change in the total haze value of 1.4% at the maximum even when heated or humidified for 500 hours. It was small.
  • a comparative example using a haze adjusting filler that does not satisfy the conditions that the displacement amount is 1540 nm or less and the elastic recovery rate is 30% or more when a load of 2000 ⁇ N is applied by the nanoindentation method.
  • the absolute value of the amount of change in the total haze value changed significantly to 1.5% or more.
  • an antiglare film whose haze value is hard to change, a method for producing the antiglare film, an optical member, and an image display device.
  • the antiglare film of the present invention is suitable for use under high temperature or high humidity conditions because the haze value does not easily change even under heating or humidifying conditions, for example.
  • the present invention is not limited to this application and can be used in a wide range of applications.
  • Anti-glare film 11 Light-transmitting base material (A) 12 Anti-glare layer (B) 12a Antiglare layer forming resin (B1) 12b Haze adjustment filler (B2) 12c thixotropy imparting agent

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  • Physics & Mathematics (AREA)
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  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Theoretical Computer Science (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Laminated Bodies (AREA)
  • Liquid Crystal (AREA)
  • Surface Treatment Of Optical Elements (AREA)
PCT/JP2020/041989 2019-11-11 2020-11-10 防眩性フィルム、防眩性フィルムの設計方法、防眩性フィルムの製造方法、光学部材および画像表示装置 WO2021095746A1 (ja)

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CN202080078119.4A CN114651197A (zh) 2019-11-11 2020-11-10 防眩性膜、防眩性膜的设计方法、防眩性膜的制造方法、光学构件及影像显示设备

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US20120252947A1 (en) * 2009-12-17 2012-10-04 Chang Gyu Im Polycarbonate resin composition for flame retardant film, flame retardant film including the resin composition and method for producing the flame retardant film
WO2013015332A1 (ja) * 2011-07-26 2013-01-31 大日本印刷株式会社 防眩性フィルム、偏光板及び画像表示装置
JP2017032711A (ja) * 2015-07-30 2017-02-09 日東電工株式会社 防眩フィルム
WO2017141903A1 (ja) * 2016-02-16 2017-08-24 株式会社トッパンＴｏｍｏｅｇａｗａオプティカルフィルム 光学積層体、偏光板及び表示装置
JP2017167560A (ja) * 2012-06-28 2017-09-21 日東電工株式会社 防眩性フィルムの製造方法、防眩性フィルム、偏光板および画像表示装置

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JP4059710B2 (ja) 2001-10-23 2008-03-12 シャープ株式会社 防眩性フィルム及び偏光素子及び表示装置の製造方法
JP2009109683A (ja) 2007-10-30 2009-05-21 Tsujiden Co Ltd アンチグレア、アンチニュートンフィルム
JP6710560B2 (ja) * 2016-03-28 2020-06-17 日東電工株式会社 偏光フィルム、粘着剤層付偏光フィルム、偏光フィルムの製造方法、及び画像表示装置

Patent Citations (5)

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Publication number Priority date Publication date Assignee Title
US20120252947A1 (en) * 2009-12-17 2012-10-04 Chang Gyu Im Polycarbonate resin composition for flame retardant film, flame retardant film including the resin composition and method for producing the flame retardant film
WO2013015332A1 (ja) * 2011-07-26 2013-01-31 大日本印刷株式会社 防眩性フィルム、偏光板及び画像表示装置
JP2017167560A (ja) * 2012-06-28 2017-09-21 日東電工株式会社 防眩性フィルムの製造方法、防眩性フィルム、偏光板および画像表示装置
JP2017032711A (ja) * 2015-07-30 2017-02-09 日東電工株式会社 防眩フィルム
WO2017141903A1 (ja) * 2016-02-16 2017-08-24 株式会社トッパンＴｏｍｏｅｇａｗａオプティカルフィルム 光学積層体、偏光板及び表示装置

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