| abstract |
PROBLEM TO BE SOLVED: To satisfy various characteristics conventionally required as a protective film, specifically, adhesion, surface hardness, transparency, heat resistance, light resistance, chemical resistance, water resistance and the like. Provided is a thermosetting resin composition suitable as a protective film forming material for an optical device capable of flattening a step of a color filter as a base substrate. [A] (a1) Unsaturation Carboxylic acid and / or unsaturated carboxylic anhydride, (a2) an epoxy group-containing unsaturated compound, (a3) the above (a1) and (a) Copolymers of olefinically unsaturated compounds other than 2), [B] a thermosetting resin composition containing a polymerizable compound having an ethylenically unsaturated bond and [C] a compound generating a radical by heat |