Abstract: An optical film has a base material and a hardcoat layer, in which a pencil hardness is 2H or higher, the number of times of folding endurance measured by an MIT tester is 1000 or more, an incident ray is made incident on the optical film from ?60° with respect to a normal direction of the optical film, an angle width within which 10% of outgoing ray peak intensity is obtained is 6° or less, and an intensity of outgoing ray at 50° from the normal direction is 1% or less of the outgoing ray peak intensity. A method for manufacturing an optical film has a step of applying a hardcoat layer forming composition to a base material to provide a coating film, and a step of curing the coating film while bringing the coating film into contact with one smooth metal roll.

Abstract: An antireflection film includes: a substrate; and an antireflection layer formed with a composition containing metal oxide particles having surface hydroxyl groups as particles for forming a moth eye structure, and two compounds having (meth)acryloyl groups, where the antireflection layer contains a binder resin including at least one of a structure derived from the two (meth)acryloyl groups, and the moth eye structure has an irregular shape formed with the metal oxide particles on a surface on a side opposite to an interface on the substrate side, and in the irregular shape of the antireflection layer, B/A is a ratio between a distance A between peaks of adjacent convex portions and a distance B between a center between peaks of the adjacent convex portions and a concave portion is 0.5 or greater.

Abstract: An antireflection film has a substrate and a layer of a low refractive index, the layer of a low refractive index contains inorganic particles and a binder resin, in a case where an average primary particle diameter of the inorganic particles is set as R, and particle spacing is set as K, an average particle spacing Ka satisfies Ka?1.1R, and a full width at half maximum Kh in a distribution curve of the particle spacing K satisfies Kh?0.25R, and a surface roughness of a surface of the layer of a low refractive index on an opposite side of the substrate is 20 nm or less. A polarizing plate, an image display device, and an antireflection product have the antireflection film.

Abstract: In an antireflection film, an antireflection layer is laminated on a support having a transmittance of 80% or more, and a reflectance difference before and after the deformation in a case of outward bending or inward bending with R of 0.8 mm in biaxial directions different by 90° is within 1.0%.

Abstract: There is provided an antireflective film, including: a plastic substrate; a infiltration layer; and an antireflective layer containing metallic oxide fine particles with an average primary particle diameter of 50 nm to 250 nm and a viscosity increasing compound, in this order, wherein the infiltration layer contains a polymer of a (meth)acrylate compound having a molecular weight of 400 or less, and the antireflective layer has a moth-eye structure including an uneven shape formed by the metallic oxide fine particles.

Abstract: Provided are a laminate including: a glass substrate; a layer (ca) including a binder; a particle (a2) having an average primary particle diameter of 100 nm to 380 nm; and a layer (b) including a pressure sensitive adhesive, in which the layer (ca) is present on a side closer to the glass substrate than the layer (b), and the particle (a2) is buried in layers obtained by combining the layer (ca) and the layer (b) and protrudes from an interface of the layer (ca) on a side opposite to an interface of the layer (ca) on the glass substrate side, an antireflection product using the laminate, and a method of manufacturing the laminate and an antireflection product.

Abstract: An antireflection film includes at least one antireflection layer on a substrate, the antireflection layer contains a cured product of a curable composition containing a lubricant (a) having three or more crosslinking groups in one molecule, having a crosslinking group equivalent of 450 or less, and having a moiety including at least one of a fluorine atom or a siloxane bond, a curable compound (b) having three or more crosslinking groups in at least one molecule, having a crosslinking group equivalent of 450 or less, and not having both of a fluorine atom and a siloxane bond, and a photopolymerization initiator (c), in an area (S) has defined herein, and has an area having a content of the lubricant (a) of 51% or more in a material distribution in a cross section direction of the area (S).

Abstract: Provided are an optical film including a base material, and a hard coat layer, in which a refractive index of the base material at a wavelength of 550 nm is 1.60 or more, a difference between a refractive index of the base material at a wavelength of 435 nm and a refractive index of the base material at a wavelength of 610 nm is 0.11 or more, and a peak intensity PV value of a power spectrum obtained by subjecting a reflectivity spectrum of the optical film to fast Fourier transform is 0.3 or less, a polarizing plate having the optical film and an image display device.

Abstract: A laminate includes: a substrate; a layer (ca) containing a resin; a particle (a2) having an average primary particle diameter of 100 nm to 380 nm; and a layer (b) containing a pressure sensitive adhesive having a gel fraction of 95.0% or more, the layer (ca) is present closer to the substrate than the layer (b), the particle (a2) is buried in a layer obtained by combining the layer (ca) and the layer (b) and protrudes from an interface of the layer (ca) on an opposite side of an interface of the layer (ca) on the substrate side, and a value obtained by subtracting a surface free energy (b) of a surface of the layer (b) from a surface free energy (ca) of a surface of the layer (ca) is ?15 mN/m to 10 mN/m.

Abstract: There is provided a method of manufacturing a specific antireflection article, the method including: applying, on the substrate, an antireflection layer-forming composition containing: specific binders, specific metal oxide particles, a metal chelate catalyst, and a solvent to dispose a first particle group composed of metal oxide particles which form a convex portion having an unevenness shape, and a second particle group composed of metal oxide particles between the first particle group and the substrate; volatilizing and drying the solvent; and heating and curing the binder (a) and the binder (b) after the volatilizing and drying of the solvent.

Abstract: An optical film includes a base material film including a (meth)acrylic resin and a first cured layer obtained by curing a first composition including a curable compound, in which the first cured layer is formed of a compatible layer and a first hardcoat layer, the compatible layer and the first hardcoat layer are provided in this order from the base material film side, and a pencil hardness of a surface of the optical film on the first cured layer side is H or more, and a peak intensity value of a power spectrum obtained by means of Fourier transformation of a reflectivity spectrum measured from the first cured layer side of the optical film by means of an optical interference-type non-contact surface shape measurement is 0.001 to 0.030. A method for manufacturing an optical film and an image display device includes the optical film.

Abstract: There is provided an antireflection film including an unevenness structure having an average cycle shorter than a visible light wavelength on a transparent substrate film, wherein in the unevenness structure, an average aspect ratio of an average height of convex portions or an average depth of concave portions to an average cycle is from 1.0 to 3.0, a water contact angle to an unevenness structure surface is 100° or more, and a specular reflectance is 2.0% or less.

Abstract: The invention is to provide a antireflective film having a moth-eye structure, which has sufficient antireflective performances, which exhibits excellent planar uniformity, and which can be manufactured by a simple method; a polarizing plate, a cover glass, and an image display device that have the antireflective film; a method for producing the antireflective film; a cloth for cleaning the antireflective film; a kit including the antireflective film and the cleaning cloth; and a method for cleaning the antireflective film. The invention provides a antireflective film which includes a plastic substrate; a infiltration layer; a antireflective layer including a binder resin and particles with an average primary particle diameter of 50 nm to 700 nm, in this order in an adjacent manner, in which the antireflective layer has moth-eye structures formed by the particles on the surface opposite to the infiltration layer.

Abstract: The present invention provides a method of manufacturing an antireflection film, including the successive steps of: applying a composition including a curable compound (a1), a plurality of particles (a2), and a solvent on a substrate, and volatilizing the solvent to provide a layer (a), the layer (a) having a portion in which the particles (a2) do not exist, and the portion having a thickness being 0.8 times the average primary particle diameter of the particles (a2) or greater; curing a portion of the curable compound (a1); causing a portion of the curable compound (a1) to permeate the substrate or to be volatilized so as to form an uneven shape; and curing the curable compound (a1) remained in the layer (a).

Abstract: A transparent film includes: a base material; and at least one scratch resistant layer of which indentation hardness is 300 MPa or greater and of which a thickness is 50 to 1,000 nm on an outermost surface of the transparent film at one side or both sides of the base material, and a number of times of folding endurance of the transparent film measured by an MIT testing machine according to JIS P8115 (2001) is 1,000 times or greater.

Abstract: Provided is a backlight unit capable of causing light that has exited from a light guide plate to be incident to a liquid crystal panel with high efficiency. The object is achieved by providing the backlight unit including a light source; a light guide plate that causes light to be incident to through an edge face and to exit through one of principal surfaces; and an optical film disposed on a surface of the light guide plate, the surface being on the opposite side of the light exiting surface, in which the optical film has a plurality of reflective polarizing elements each having a curved surface, and/or a plurality of reflective polarizing elements each having an inclined surface that is inclined with respect to the direction of light propagation of the light guide plate.

Abstract: An aspect of the invention relates to an optical film including a cellulose acylate film; and a hardened layer formed by hardening a curable composition, in which the cellulose acylate film includes polyester having a cyclic structure, the curable composition at least includes a granular filler, a polyester urethane having a tensile strength of 25 MPa or greater and a tensile elongation of 200% or greater, and a curable compound, and a content of the granular filler is in a range of 15 to 60 parts by mass and a content of the polyester urethane is in a range of 1 to 10 parts by mass, with respect to 100 parts by mass of a total amount of a solid content included in the curable composition, a polarizing plate, and an image display device.

Abstract: An antireflection film includes: a substrate; and an antireflection layer formed with a composition containing the components (A), (B) and (C) as defined herein, the antireflection layer contains a binder resin including at feast one of a structure derived from the following (B) and a structure derived from the following (C) and has a moth eye structure having an irregular shape formed with metal oxide particles of the following on a surface on a side opposite to an interface on the substrate side, and in the irregular shape of the antireflection layer, B/A which is a ratio between a distance A between peaks of adjacent convex portions and a distance ft between a center between peaks of the adjacent convex portions and a concave portion is 0.

Abstract: There is provided an antireflection film having a surface haze of less than 1.0%, including: a light transmitting layer; and an antireflection layer, wherein the antireflection layer includes a specific unevenness structure on a surface at a side opposite to a side at which the light transmitting layer is provided, the specific unevenness structure made from specific raw materials.

Abstract: There is provided a method of manufacturing a specific antireflection article, the method including: applying, on the substrate, an antireflection layer-forming composition containing: specific binders, specific metal oxide particles, a metal chelate catalyst, and a solvent to dispose a first particle group composed of metal oxide particles which form a convex portion having an unevenness shape, and a second particle group composed of metal oxide particles between the first particle group and the substrate; volatilizing and drying the solvent; and heating and curing the binder (a) and the binder (b) after the volatilizing and drying of the solvent.