PHOTOSENSITIVE RESIN COMPOSITION, PHOTO SPACER AND METHOD OF FORMING THE SAME, PROTECTIVE LAYER, COLORED PATTERN, SUBSTRATE FOR A DISPLAY, AND DISPLAY DEVICE

摘要

A photoresist resin composition, and a method for forming a photo-spacer by using the composition are provided to improve the storage stability in liquid state and to enhance aging stability. A photoresist resin composition comprises a resin having a branched and/or alicyclic structure, an acidic group and a substituted alkyl group at the side chain (wherein the substituted alkyl group has two ethylenically unsaturated bonds); a polymerizable compound having an ethylenically unsaturated bond; and a photopolymerization initiator. Preferably the substituted alkyl group is represented by the formula 1.