Resin composition, cured film and patterned cured film formed from same, method for producing cured film, and method for producing patterned cured film

A resin composition which contains the following component (a), component (b) and component (c). (a) a polyimide precursor having a structural unit represented by formula (1) (b) a light-exposed surface solubilizing agent (c) a compound that generates radicals by means of irradiation of active light (In formula (1), R 1 represents a tetravalent organic group; R 2 represents a divalent organic group; and each of R 3 and R 4 independently represents a hydrogen atom, an alkyl group, a cycloalkyl group or a monovalent organic group having a carbon-carbon unsaturated double bond.)