Patent ID: 7250209

Claim:
A transparent composite sheet having a thickness of 50 to 2,000 μm which comprises a transparent resin (a) and a glass fiber cloth as a glass filler (b), wherein said transparent resin (a) being a copolymer obtained from a first at least one reactive monomer, wherein a homopolymer formed by said first at least one reactive monomer has a lower refractive index after crosslinking than the glass filler (b), and a second at least one reactive monomer, wherein a homopolymer formed by said second at least one reactive monomer has a higher refractive index after crosslinking than the glass filler (b), by impregnating the glass fiber cloth with the reactive monomer composition followed by crosslinking using actinic irradiation and/or heating, and wherein at least one of the reactive monomers is a (meth)acrylate having two or more functional groups.