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AssigneeSamsung SDI Co., Ltd.
InventorsIrina NAM, Young Jong KIM, Hwan Sung CHEON, In Cheon HAN
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An adhesive film of the present invention comprises a (meth)acrylate-based copolymer and a cross-linking agent, and a gel fraction thereof is approximately 50-95%, and a ratio of change G′ in storage modulus thereof, represented by the following formula 1, is 20% or less. [Formula 1] G′=(G7−G1)/G1×100 (In formula 1, G1 is a storage modulus at 25° C. when the adhesive film is matured at 23° C. and a relative humidity (RH) of 55% for one day, and G7 represents a storage modulus at 25° C. when the adhesive film is matured at 23° C. and an RH of 55% for seven days.)
A pressure-sensitive adhesive film comprising a (meth)acrylate copolymer and a crosslinker and having a gel fraction of about 50% to about 95% and a storage modulus variation G′ of about 20% or less as represented by Equation 1:
A pressure-sensitive adhesive film comprising:
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Dependencies are inferred from the claim text.