TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The inorganic nano-sol is nano-sol or nano-sol dispersion, prepared by using inorganic precursors and polar solvent including water. The inorganic precursor is metal alkoxide, metal acetate, metal nitrate or metal halide, preferably silica, alumina, magnesium oxide, titania, zirconia, tin oxide, zinc oxide, barium titanate, zirconium titanate and/or strontium titanate.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Components: The functional organic metal alkoxide includes at least one of acryl, methacryl, allyl, alkyl, ketone group, aromatic group, ester group, nitro, hydroxy, cyclobutene, alkyd, urethane, mercapto, cyano, vinyl, amine epoxy and acetylacetone group. The organosilane is at least one of trialkoxysilane including methyltrimethoxysilane, methyltriethoxysilane, ethyltrimethoxysilane, ethyltriethoxysilane, n-propyltrimethoxysilane, n-propyltriethoxysilane, isopropyltrimethoxysilane, isopropyltriethoxysilane, n-butyltrimethoxysilane, n-butyltriethoxysilane, n-pentyltrimethoxysilane, n-hexyltrimethoxysilane, n-heptyltrimethoxysilane, n-octyltrimethoxysilane, vinyltrimethoxysilane, vinyltriethoxysilane, cyclohexyltrimethoxysilane, cyclohexyltriethoxysilane, phenyltrimethoxysilane, phenyltriethoxysilane, 3-chloropropyltrimethoxysilane, 3-chloropropyltriethoxysilane, 3,3,3-trifluoropropyltrimethoxysilane, 3,3,3-trifluoropropyltriethoxysilane, 3-aminopropyltrimethoxysilane, 3-aminopropyltriethoxysilane, 2-hydroxyethyltrimethoxysilane, 2-hydroxyethyltriethoxysilane, 2-hydroxypropyltrimethoxysilane, 2-hydroxypropyltriethoxysilane, 3-hydroxypropyltrimethoxy silane, 3-hydroxypropyltriethoxysilane, 3-mercaptoproyltrimethoxysilane, 3-mercaptopropyltriethoxysilane, 3-isocyanatopropyltrimethoxysilane, 3-isocyanatopropyltriethoxysilane, 3-glycidoxypropyltrimethoxysilane, 3-glycidoxypropyltriethoxysilane, 2-(3,4-epoxycyclohexyl)ethyltrimethoxysilane, 2-(3,4-epoxycyclohexyl)ethyltriethoxysilane, 3-(meth)acryloxypropyltrimethoxysilane, 3-(meth)acryloxypropyltriethoxysilane, 3-ureidopropyltrimethoxysilane and/or 3-ureidopropyltriethoxysilane, dialkoxysilane including dimethyldimethoxysilane, dimethyldiethoxysilane, diethyldimethoxysilane, diethyldiethoxysilane, di-n-propyldimethoxysilane, di-n-propyldiethoxysilane, diisopropyldimethoxysilane, diisopropyldiethoxysilane, di-n-butyldimethoxysilane, di-n-butyldiethoxysilane, di-n-pentyldimethoxysilane, di-n-pentyldiethoxysilane, di-n-hexyldimethoxysilane, di-n-heptyldimethoxysilane, di-n-heptyldiethoxysilane, di-n-octyldimethoxysilane, di-n-octyldiethoxysilane, dicyclohexyldimethoxysilane, dicyclohexyldiethoxysilane, diphenyldimethoxysilane and/or diphenyldiethoxysilane. EXAMPLE - No suitable example given.