| abstract |
A composition of an optical film contains silica-based hollow microparticles, a matrix precursor, a nonvolatile liquid, and a volatile solvent. The nonvolatile liquid has a vapor pressure of 500 Pa or less and a boiling point of 250°C or higher. The volatile solvent is more volatile than the nonvolatile liquid. The content of the nonvolatile liquid is in the range from 0.1 to 30 parts by mass, inclusive, per 100 parts by mass of the sum of the silica-based hollow microparticles and the matrix precursor. |