PHOTOCURABLE COMPOSITION, BRIGHTNESS ENHANCEMENT SHEET, BACK LIGHT UNIT AND LIQUID CRYSTAL DISPLAY DEVICE INCLUDING THE SAME

摘要

PURPOSE: A photocurable coating composition is provided to ensure excellent restitution, good physical properties such as brightness, color change, adhesion with a base film, yellowing, and releasablilty from a mold. CONSTITUTION: A photocurable coating composition comprises a urethane (meth)acrylate oligomer(A) represented by formula 1, a (meth)acrylate monomer(B), a monofunctional (meth)acrylate monomer(C), and a photoinitiator(D). In chemical formula 1, R1 is C0~15 aliphatic or aromatic hydrocarbon; R2 is a hydrogen atom or methyl group; X and Y are C1~30 aliphatic or aromatic hydrocarbon that contains or does not contain a hetero atom; and n is an integer of 1~5.