Colored photosensitive resin composition and light shielding spacer prepared therefrom

A colored photosensitive resin composition, which comprises:

• (A) 5 to 40 wt % of a copolymer comprising (A-1) structural unit derived from an ethylenically unsaturated carboxylic acid, an ethylenically unsaturated carboxylic anhydride, or a combination thereof, (A-2) structural unit derived from an ethylenically unsaturated compound containing an aromatic ring, and (A-3) structural unit derived from an ethylenically unsaturated compound different from (A-1) and (A-2), based on the total weight of the solid content of the colored photosensitive resin composition;
• (B) 5 to 30 wt % of an epoxy resin or a compound derived therefrom, based on the total weight of the solid content of the colored photosensitive resin composition;
• (C) 10 to 40 wt % of a photopolymerizable compound, based on the total weight of the solid content of the colored photosensitive resin composition;
• (D) 0.05 to 5 wt % of a photopolymerization initiator, based on the total weight of the solid content of the colored photosensitive resin composition;
• and
• (E) 10 to 75 wt % of a colorant, based on the total weight of the solid content of the colored photosensitive resin composition,
• wherein the photopolymerization initiator (D) comprises an oxime ester fluorene-based initiator of Formula 1 below:
• wherein, in Formula 1 above, R1 is each independently C1-20 alkyl, R2 and R3 are each independently C1-20 alkyl, C6-20 aryl, or C3-20 cycloalkyl,
• A is nitro or cyano, and
• X is a single bond or carbonyl.