PROBLEM TO BE SOLVED: To provide a radiation-sensitive resin composition which sufficiently satisfies general characteristics such as sensitivity, and has small film thickness variation in an unexposed portion after a development process and a post-baking process, and to provide a cured film formed from the radiation-sensitive resin composition and a method for forming the same, and a display element including the cured film.SOLUTION: A radiation-sensitive resin composition contains: [A] a polymer component having an acrylic acid ester structure unit (I) having an alkoxy alkyl group in a side chain and/or an acrylic acid ester structure unit (II) having a specific acetal structure in a side chain, a structure unit (III) including a crosslinkable group, and an acrylic acid ester structure unit (IV) having a hydroxyl group or a carboxy group in a side chain and/or an acrylic acid ester structure unit (V) having an ester structure having a hydroxyl group or a carboxy group in a side chain, in the same or differe
