Patent ID: 7829650

Claim:
A polymer for forming an anti-reflective coating layer, represented by following Formula 3: in Formula 3, R is hydrogen atom, C 1 ˜C 20 alkyl group, C 1 ˜C 10 alcohol group or epoxy group, R 2 is C 1 ˜C 20 alkyl group, C 3 ˜C 20 cycloalkyl group, C 6 ˜C 20 aryl group or C 7 ˜C 12 arylalkyl group, R 3 is hydrogen atom, C 1 ˜C 10 alcohol group or epoxy group and POSS is a polyhedral oligosilsesquioxane, a, b and c independently represent mol % of repeating units constituting the polymer and are 1˜98mol %, 1˜98mol % and 1˜98mol %.