RADIATION SENSITIVE RESIN COMPOSITION FOR FORMING INSULATING FILM AND INSULATING FILM FOR ORGANIC ELECTROLUMINESCENT ELEMENT

摘要

PROBLEM TO BE SOLVED: To provide a radiation sensitive resin composition giving an insulating film widen toward the bottom and suitable for use as an insulating film for an organic EL element and to provide an insulating film for an organic EL element. SOLUTION: The radiation sensitive resin composition contains (A) an alkali- soluble resin, (B) a quinonediazidosulfonic ester, (C) an organic solvent and (D) a thermosetting component. The insulating film for an organic EL element widen toward the bottom and having 0.3-3 μm thickness is obtained by forming a resin film having a desired pattern with the resin composition and curing the resin film by heating.