Patent ID: 8394493

Claim:
A bonding film composition, comprising, with respect to a total 100% by weight of the bonding film composition: about 5 to 40% by weight of an elastomer resin containing a hydroxyl group, a carboxyl group, or an epoxy group; about 5 to 60% by weight of a film forming resin having a glass transition temperature (Tg) in a range of about 0 to 200° C.; about 5 to 40% by weight of an epoxy resin; about 0.01 to 10% by weight of a hardener, wherein the hardener includes at least one compound represented by the following Formulas 2 or 3: wherein each of R 1 to R 8 is independently a hydrogen atom, a halogen atom, or alkyl, about 0.01 to 10% by weight of a silane coupling agent; about 3 to 60% by weight of a filler; and about 5 to 40% by weight of a phenol resin represented by the following Formula 1: where each of R 1 and R 2 is independently C 1-4 alkyl or hydrogen atom, a and b are integers in a range from about 0 to 4, respectively, and n is an integer in a range from about 0 to 7.