Patent ID: 7838093

Claim:
A multifunctional optical film comprising: a transparent substrate; a light-focusing layer and a light-diffusing layer, wherein the light-focusing layer is disposed on a surface of the transparent substrate, and the light-diffusing layer is disposed on another surface of the transparent substrate, wherein the light-focusing layer comprises at least one selected from the group consisting of high refractive silicone resins as represented by Formula 1 below, and wherein the light-diffusing layer comprises at least one selected from the group consisting of low refractive silicone resins as represented by Formula 2 below: wherein, R 1 , R 2 , R 3 , R 4 , and R 5 are each independently hydrogen, a substituted or unsubstituted C1-C30 aliphatic hydrocarbon, a substituted or unsubstituted C1-C30 aromatic hydrocarbon, a substituted or unsubstituted C1-C30 silyl group, a substituted or unsubstituted C1-C30 allyl group, a substituted or unsubstituted C1-C30 acyl group, an amine group, a halogen atom, a hydroxy group, a carboxyl group, a nitro group, or an alkaline metal; M is silicon, aluminum, titanium, or zirconium; and n 1 , n 2 , m 1 , and m 2 are each independently an integer of 2 to 300,000.