Abstract: The subject invention provides an optical film comprising a substrate and a resin coating having a convex-concave structure on at least one surface of the substrate, wherein said resin coating comprises a plurality of organic particles and a binder, the organic particles being formed from a polyacrylate resin which comprises at least one multi-functional acrylate monomer as polymerization units, and said multi-functional acrylate monomer is in an amount from 30 wt % to 70 wt % based on the total weight of the monomers, and wherein the organic particles have a single mean particle size, the particle size distribution of the organic particles ranges within about ±30% of the mean particle size, and the organic particles are in an amount from about 110 to about 360 parts by weight per 100 parts by weight of the solids content of the binder.

Abstract: The subject invention relates to a scratch-resistant optical film, which comprises: (a) a transparent substrate having a first surface and a second surface; (b) a diffusion layer on the first surface of the substrate, which has a convex-concave structure and is comprised of a first hard coat layer comprising organic particles; (c) a scratch-resistant layer on the second surface of the substrate, which is comprised of a second hard coat layer; wherein the organic particles in the first hard coat layer are formed from a polyacrylate resin which comprises at least one multi-functional acrylate monomer as polymerization units, said multi-functional acrylate monomer being in an amount from 30 to 70 wt % based on the total weight of the monomer used, and wherein the organic particles have a single mean particle size and have a particle size distribution in the range within about ±5% of the mean particle size.

Abstract: The invention provides a coating composition comprising a thermal plastic resin selected from the group consisting of a polycycloolefin resin, polyester resin, polyacrylate resin, and a mixture thereof; and a radiation curable resin comprising a radiation polymer containing at least one mono- or multi-functional acrylic acid based monomer as a polymerization unit, an oligomer containing an ethylenically unsaturated functional group, and a photoinitiator, wherein the radiation curable resin is used in an amount of 220-1000% by weight on the basis of the weight of the thermal plastic resin. The invention improves the hardness of the coating composition, prevent the coated substrate from being scratched or impaired, and impart the substrate with high transparency without causing warping problem.

Abstract: An optical thin sheet is provided, which comprises a substrate with a light diffusion 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 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: 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 subject invention provides an optical film, comprising a transparent substrate and a resin coating having a convex-concave structure on at least one surface of the substrate, wherein said resin coating comprises a plurality of organic particles and a binder, the organic particles being formed from a polyacrylate resin which comprises at least one acrylate monomer type having multiple functional groups as polymerization units, said multi-functional acrylate monomers being in an amount from 30 to 70 wt % based on the total weight of the monomers, and wherein the organic particles have a mean particle size, the particle size distribution of the organic particles ranging within about ±5% of the mean particle size, and wherein the organic particles are in an amount from about 180 to 320 parts by weight per 100 parts by weight of the solid contents of the binder.

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 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 provides a coating composition comprising a thermal plastic resin selected from the group consisting of a polycycloolefin resin, polyester resin, polyacrylate resin, and a mixture thereof; and a radiation curable resin comprising a radiation polymer containing at least one mono- or multi-functional acrylic acid based monomer as a polymerization unit, an oligomer containing an ethylenically unsaturated functional group, and a photoinitiator, wherein the radiation curable resin is used in an amount of 220-1000% by weight on the basis of the weight of the thermal plastic resin. The invention improves the hardness of the coating composition, prevent the coated substrate from being scratched or impaired, and impart the substrate with high transparency without causing warping problem.

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 subject invention provides an optical film, comprising a transparent substrate and a resin coating having a convex-concave structure on at least one surface of the substrate, wherein said resin coating comprises a plurality of organic particles and a binder, the organic particles being formed from a polyacrylate resin which comprises at least one acrylate monomer type having multiple functional groups as polymerization units, said multi-functional acrylate monomers being in an amount from 30 to 70 wt % based on the total weight of the monomers, and wherein the organic particles have a mean particle size, the particle size distribution of the organic particles ranging within about ±5% of the mean particle size, and wherein the organic particles are in an amount from about 180 to 320 parts by weight per 100 parts by weight of the solid contents of the binder.

Abstract: The subject invention relates to a scratch-resistant optical film, which comprises: (a) a transparent substrate having a first surface and a second surface; (b) a diffusion layer on the first surface of the substrate, which has a convex-concave structure and is comprised of a first hard coat layer comprising organic particles; (c) a scratch-resistant layer on the second surface of the substrate, which is comprised of a second hard coat layer; wherein the organic particles in the first hard coat layer are formed from a polyacrylate resin which comprises at least one multi-functional acrylate monomer as polymerization units, said multi-functional acrylate monomer being in an amount from 30 to 70 wt % based on the total weight of the monomer used, and wherein the organic particles have a single mean particle size and have a particle size distribution in the range within about ±5% of the mean particle size.

Abstract: The subject invention provides an optical film comprising a substrate and a resin coating having a convex-concave structure on at least one surface of the substrate, wherein said resin coating comprises a plurality of organic particles and a binder, the organic particles being formed from a polyacrylate resin which comprises at least one multi-functional acrylate monomer as polymerization units, and said multi-functional acrylate monomer is in an amount from 30 wt % to 70 wt % based on the total weight of the monomers, and wherein the organic particles have a single mean particle size, the particle size distribution of the organic particles ranges within about ±30% of the mean particle size, and the organic particles are in an amount from about 110 to about 360 parts by weight per 100 parts by weight of the solids content of the binder.

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.