Patent ID: 7108810

Claim:
A process for the preparation of an anti-reflection film comprising the steps of: forming a hard coating layer on a transparent support; coating a coating solution on the hard coating layer to form a low refractive index layer having an essentially uniform thickness in the range of 50 to 400 nm and a surface roughness in terms of an arithmetic mean in the range of 0.05 to 2 m, wherein the low refractive index layer comprises inorganic particles, a cross-linked binder polymer and a silane coupling agent, said inorganic particles being surface treated with the silane coupling agent, and said silane coupling agent being combined with the binder polymer by a reaction of a double bond of the silane coupling agent; and then embossing the low refractive index layer to form a rough surface on the low refractive index layer, wherein the hard coating layer has an essentially uniform thickness, and the low refractive index layer has an essentially uniform thickness in the range of 50 to 400 nm after embossing the layers, and wherein the cross-linked binder polymer is a polymerization product of a monomer having two or more ethylenically unsaturated groups.