<p>A liquid resin composition which comprises (A) fluorine-containing polymer, (B) a curable compound, (C) metal oxide particles having a number average particle diameter of 100 nm or less and (D) a solvent. During the curing of the resin composition, the metal oxide particles are unevenly distributed so that the refractive index of the resulting film is changed in the direction of the thickness of the film by 0.0 5 to 0.8, which results in the production of a cured film having a substantially double layer structure composed of a low refractive index layer and a high refractive index layer.</p>
