Abstract: The subject invention provides a thin and flexible light guide element, which comprises a first optical layer composed of a flexible transparent material; a second optical layer formed on the lower side of the first optical layer and having a light-adjusting structure to change the light path; and a third optical layer formed on the upper side of the first optical layer and having a convex-concave structure to homogenize the light emitted from the first optical layer, wherein the first and second optical layers have different refractive indices.

Abstract: The invention provides an anti-UV coating composition comprising inorganic particulates, a resin, and at least one kind of organic particles having a different refractive index from that of the resin. The coating composition of the present invention can be coated onto a substrate and provides good anti-UV effect. The invention also provides a film comprising a substrate wherein at least one surface of said substrate has at least one coating layer formed from the anti-UV coating composition of the present invention. The film of the subject invention can enhance brightness, has good weather resistance, can absorb UV light, and can effectively solve the yellowing problem of the substrate.

Abstract: The invention pertains to a scratch-resistant thin film comprising a transparent substrate wherein the substrate comprises at least one micro structured layer on the lower side and at least one scratch-resistant layer on the upper side, wherein said scratch-resistant layer has a convex-concave structure, a surface resistivity in the range from 108 to 1012 ?/?, a pencil hardness of 3H or more as measured according to JIS K5400 standard method, and a haze in the range from 30% to 98% as measured according to JIS K7136 method. The thin film of the invention exhibits both light enhancement and light uniformization properties, has a low volume shrinkage, does not warp, and possesses excellent anti-static and high hardness properties.

Abstract: The invention pertains to an optical film comprising a reflective substrate, characterized in that at least one of the surfaces of the substrate has a scratch-resistant layer which possesses anti-static properties, wherein the scratch-resistant layer has a surface resistivity in the range from 108 to 1012?/?, and a pencil hardness of 3H or more as measured according to JIS K5400 standard method. The optical film of the invention has a low volume shrinkage, does not warp, and possesses excellent anti-static properties and high hardness properties.

Abstract: An optical thin sheet is provided, which comprises a substrate with a light difflusion layer on at least one side of the substrate. The optical thin sheet has an optical property with respect to a haze of no less than 98% and is particularly suitable for use in flat displays.

Abstract: The invention pertains to a reflector comprising a substrate capable of reflecting light, characterized in that the reflector exhibits a gloss of less than 10% as determined when a light source is projected on the surface of the reflector at 60 degree. The reflector of the invention allows the light to be reflected uniformly and possesses a high reflectivity.

Abstract: The invention pertains to a resin composition capable of absorbing UV light, comprising inorganic particulates and a resin containing as a polymerized unit an acrylate monomer. The composition of the invention can be formulated into a coating for a substrate so as to impart UV resistance and good weatherability to the coated substrate.

Abstract: The invention pertains to an optical film comprising a substrate, characterized in that at least one of the surfaces of the substrate has a coating capable of absorbing UV light. The inventive optical film possesses good weatherability and is capable of absorbing UV light.