Adhesive film, adhesive composition for the same, and display apparatus including the same

摘要

An adhesive film, an adhesive composition for the same, and a display apparatus including the same. The adhesive film includes a urethane functional group, has a glass transition temperature (Tg) of about 30° C. or less, a loss modulus of about 4×104 dyn/cm2 to about 8×104 dyn/cm2 upon frequency sweep testing under conditions of a strain of 3%, 60° C. and 1 rad/s, and tan δ of about 0.2 to 0.55 upon frequency sweep testing under conditions of a strain of 3%, 60° C. and 1 rad/s.

主权项

1. An adhesive film comprising a cured product of an adhesive composition comprising:
a urethane(meth)acrylate copolymer comprising a urethane functional group; and a (meth)acrylic copolymer of a monomer mixture comprising an alkyl(meth)acrylate containing a C1 to C20 alkyl group, an alicyclic(meth)acrylate containing an alicyclic group and a monomer containing a hydroxyl group, wherein the adhesive film has a glass transition temperature (Tg) of about −20° C. or lower, a loss modulus of about 4×104 dyn/cm2 to about 8×104 dyn/cm2 upon frequency sweep testing under conditions of a strain of 3%, 60° C. and 1 rad/s, and tan δ of about 0.2 to 0.55 upon frequency sweep testing under conditions of a strain of 3%, 60° C. and 1 rad/s.