Abstract: The present invention provides an inexpensive optical layered body which does not cause interference fringes but excels in hard coat properties, antistatic properties, and antireflection properties. An optical layered body comprises: a light-transmitting substrate; and a hard coat layer (A) and a hard coat layer (B) on one face of the light-transmitting substrate in this order, wherein the hard coat layer (B) has a region (B1) not containing inorganic fine particles and a region (B2) containing inorganic fine particles, in this order from a portion adjacent to the hard coat layer (A), a boundary between the region (B1) not containing inorganic fine particles and the region (B2) containing inorganic fine particles has irregularities, and the inorganic fine particles have a particle size smaller than a visible light wavelength.

Abstract: The present invention provides an inexpensive optical layered body which does not cause interference fringes but excels in hard coat properties, antistatic properties, and antireflection properties. An optical layered body comprises: a light-transmitting substrate; and a hard coat layer (A) and a hard coat layer (B) on one face of the light-transmitting substrate in this order, wherein the hard coat layer (B) has a region (B1) not containing inorganic fine particles and a region (B2) containing inorganic fine particles, in this order from a portion adjacent to the hard coat layer (A), a boundary between the region (B1) not containing inorganic fine particles and the region (B2) containing inorganic fine particles has irregularities, and the inorganic fine particles have a particle size smaller than a visible light wavelength.

Abstract: An optical laminate is provided including a thin layer formed of a resin having a weight average molecular weight of not less than 200 and not more than 1000 with three or less functional groups and a penetrative solvent is provided on a light transparent base material, and a hardcoat layer is provided on the thin layer.

Abstract: An optical laminate is provided, which includes a light transparent base material and a hardcoat layer provided on the light transparent base material. The hardcoat layer is formed of a composition comprising a first resin having a weight average molecular weight of not less than 200 and not more than 10000 and containing more than 2 functional groups, a second resin having a weight average molecular weight of not less than 200 and not more than 1000 and containing two or less functional groups, and a penetrative solvent.

Abstract: The present invention discloses an optical laminate in which the occurrence of interface reflection and interference fringes can be effectively prevented by substantially eliminating the interface between a light transparent base material and a hardcoat layer. The optical laminate comprises: a light transparent base material; and a hardcoat layer provided on the light transparent base material, the interface between the light transparent base material and the hardcoat layer having been rendered substantially absent.

Abstract: Disclosed is an optical laminate in which the occurrence of interface reflection and interference fringes at the interface of a light transparent base material and a hardcoat layer has been effectively prevented. The optical laminate comprises a hardcoat layer provided on a light transparent base material, wherein a thin layer formed of a resin having a weight average molecular weight of not less than 200 and not more than 1000 and containing three or less functional groups and a penetrative solvent is provided on the light transparent base material, and the hardcoat layer is provided on the thin layer.

Abstract: The present invention discloses an optical laminate in which the occurrence of interface reflection and interference fringes at the interface of a light transparent base material and a hardcoat layer has been effectively prevented. The optical laminate comprises: a light transparent base material; and a hardcoat layer provided on the light transparent base material, wherein the hardcoat layer is formed of a composition comprising (1) a resin having a weight average molecular weight of not less than 200 and not more than 10000 and containing more than 2 functional groups, (2) a resin having a weight average molecular weight of not less than 200 and not more than 1000 and containing two or less functional groups, and a penetrative solvent.

Abstract: A lens film including a transparent substrate film and a concave or convex lens layer provided on a side of the substrate film. The lens layer contains a resin composition with conductive fine particles dispersed therein and has a surface resistivity of not more than 1012 &OHgr;/□. Another embodiment is a lens film including a transparent substrate film, a conductive layer provided on a side of the substrate film, and a concave or convex lens layer provided on the conductive layer, the conductive layer having a surface resistivity of not more than 1012 &OHgr;/□. The lens film can be part of a surface light source where the light-receiving side of the lens film is disposed on the light outlet side. The surface light source can be part of a liquid crystal display device.

Abstract: An antistatic hard coat film for various displays is provided which can prevent electrostatic deposition of foreign materials and at the same time possesses excellent scratch resistance and hardness high enough not to cause a deterioration in transparency upon being rubbed. The antistatic hard coat film 5 comprises: a transparent substrate film 1; a transparent conductive layer 2, having a surface resistivity of preferably not more than 1012 &OHgr;/□, provided on the substrate film 1; and a hard coat 3 provided on the transparent conductive layer 2, the hard coat 3 preferably having such an anisotropic conductivity that the resistivity in the layer surface direction is higher than the resistivity in the layer thickness direction.

Abstract: An antireflection film containing a transparent substrate film, a hard coat layer on the substrate film, and first and second refractive index layers on the hard coat layer. The hard coat layer has a refractive index higher than the refractive index of the transparent substrate film; the first refractive index layer has a refractive index higher than the refractive index of the hard coat layer; the second refractive index layer has a refractive index lower than the refractive index of the hard coat layer.

Abstract: The present invention provides a transparent functional film comprising a transparent plastic substrate film and a hard coat layer provided thereon, wherein functional ultrafine particles are present in a highly localized form, thereby enabling the functional ultrafine particles to effectively exhibit their function and, at the same time, the hard coat layer to have a good adhesion to the functional ultrafine particle layer; and also an antireflection film and processes for producing the transparent functional film and the antireflection film.

Abstract: A antiglare layer 12 having a fine uneven surface is formed directly or through other layer(s) on a transparent substrate film 11, and a layer 13 having a low refractive index, which is lower than the refractive index of the antiglare layer 12, is formed thereon. The refractive index of the antiglare layer 12 is higher than the refractive index of a layer in contact with said antiglare layer 12 on its surface remote from the layer 13 having a low refractive index. An SiOx film may be used as the layer 13 having a low refractive index. The SiOx film per se has excellent gas barrier property and antifouling property as an optical functional membrane and is an optical functional material characterized by having excellent moistureproofness, scratch resistance, adhesion to a substrate, transparency, low refractive index, dye deterioration preventive property, and other properties.

Abstract: An antireflection film containing a transparent substrate film, a hard coat layer on the substrate film, and first and second refractive index layers on the hard coat layer. The hard coat layer has a refractive index higher than the refractive index of the transparent substrate film; the first refractive index layer has a refractive index higher than the refractive index of the hard coat layer; the second refractive index layer has a refractive index lower than the refractive index of the hard coat layer.

Abstract: This invention provides an anti-reflection film for use in various displays which prevents the reflection of light on the surface and enables necessary visual information to be clearly discerned. The anti-reflection film has a hard coat layer 4, an intermediate refractive index layer 3, a high refractive index layer 2 and a low refractive index layer 1 formed in this sequence on a transparent base film 5, such that the refractive indices of the adjacent layers satisfy the relationship 2.20>refractive index of the high refractive index layer>refractive index of the intermediate refractive index layer>refractive index of the low refractive index layer>1.40.

Abstract: This invention provides an anti-reflection film for use in various displays which prevents the reflection of light on the surface and enables necessary visual information to be clearly discerned. The anti-reflection film has a hard coat layer 4, an intermediate refractive index layer 3, a high refractive index layer 2 and a low refractive index layer 1 formed in this sequence on a transparent base film 5, such that the refractive indices of the adjacent layers satisfy the relationship 2.20>refractive index of the high refractive index layer>refractive index of the intermediate refractive index layer>refractive index of the low refractive index layer >1.40.

Abstract: An antistatic hard coat film for various displays is provided which can prevent electrostatic deposition of foreign materials and at the same time possesses excellent scratch resistance and hardness high enough not to cause a deterioration in transparency upon being rubbed. The antistatic hard coat film 5 comprises: a transparent substrate film 1; a transparent conductive layer 2, having a surface resistivity of preferably not more than 10.sup.12 .OMEGA./.quadrature., provided on the substrate film 1; and a hard coat 3 provided on the transparent conductive layer 2, the hard coat 3 preferably having such an anisotropic conductivity that the resistivity in the layer surface direction is higher than the resistivity in the layer thickness direction.

Abstract: A antiglare layer 12 having a fine uneven surface is formed directly or through other layer(s) on a transparent substrate film 11, and a layer 13 having a low refractive index, which is lower than the refractive index of the antiglare layer 12, is formed thereon. The refractive index of the antiglare layer 12 is higher than the refractive index of a layer in contact with said antiglare layer 12 on its surface remote from the layer 13 having a low refractive index. An SiO.sub.x film may be used as the layer 13 having a low refractive index. The SiO.sub.x film per se has excellent gas barrier property and antifouling property as an optical functional membrane and is an optical functional material characterized by having excellent moistureproofness, scratch resistance, adhesion to a substrate, transparency, low refractive index, dye, deterioration preventive property, and other properties.

Abstract: An antireflection film, containing ultrafine particles, formed of a resin composition having excellent dispersibility of ultrafine particles in a binder resin and capable of preventing whitening, a polarizing plate, and a liquid crystal display device are provided.At least one resin layer is provided on a transparent substrate film directly or through other layer(s), and at least one of the resin layer has a controlled refractive index and is formed of a resin composition containing ultrafine particles. The outermost layer has a lower refractive index than an underlying layer in direct contact therewith. The resin composition contains a carboxyl-containing (meth)acrylate as part or the whole of a binder resin component. A polyfunctional acrylate having in its molecule three or more acryloyl groups may be added to the binder resin component in order to further enhance the properties of the hard coating.

Abstract: The present invention provides a transparent functional film comprising a transparent plastic substrate film and a hard coat layer provided thereon, wherein functional ultrafine particles are present in a highly localized form, thereby enabling the functional ultrafine particles to effectively exhibit their function and, at the same time, the hard coat layer to have a good adhesion to the functional ultrafine particle layer; and also an antireflection film and processes for producing the transparent functional film and the antireflection film.A functional ultrafine particle layer 2 is formed on a release film 1. Separately, a resin composition for a hard coat layer is coated on a transparent plastic substrate film 3.

Abstract: A antiglare layer 12 having a fine uneven surface is formed directly or through other layer(s) on a transparent substrate film 11, and a layer 13 having a low refractive index, which is lower than the refractive index of the antiglare layer 12, is formed thereon. The refractive index of the antiglare layer 12 is higher than the refractive index of a layer in contact with said antiglare layer 12 on its surface remote from the layer 13 having a low refractive index. An SiO.sub.x film may be used as the layer 13 having a low refractive index. The SiO.sub.x film per se has excellent gas barrier property and antifouling property as an optical functional membrane and is an optical functional material characterized by having excellent moistureproofness, scratch resistance, adhesion to a substrate, transparency, low refractive index, dye deterioration preventive property, and other properties.