Patent ID: 8351119

Claim:
A multi-coated hybrid optical film structure, comprising a transparent substrate, said transparent substrate having two opposite surfaces, said transparent substrate having a thickness between 30 and 300 micrometer (μm); a multi-coated layer, said multi-coated layer being located on one of said two opposite surfaces of said transparent substrate, said multi-coated layer comprising an inner layer of a diffusion layer combination, said diffusion layer combination scattering incident light, said diffusion layer combination having a refractive index between 1.3 and 1.6, said diffusion layer combination comprising at least one diffusion layer, said diffusion layer having a thickness between 1 and 50 μm, said diffusion layer having an interface microstructure, said interface microstructure having a roughness greater than 0.5 μm; and an outer layer of a condensing optical layer, said condensing optical layer being located on said diffusion layer combination, said diffusion layer combination being located between said condensing optical layer and said transparent substrate, said condensing optical layer having a condensing microstructure to concentrate light, said condensing optical layer having a refractive index between 1.4 and 1.7; and a protective coated layer, said protective coated layer being located on the other one of said two opposite surfaces of said transparent substrate, said protective coated layer being anti-static and wear-resistant.