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AssigneeSamsung SDI Co., Ltd.
InventorsMi Yeon Yu, Yoo Jin Suh, Do Heon Lee, Seung Hoon Lee, Tae Hyun Lee, Ri Ra Jung, Woo Jin Jeong, In Cheon Han
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An adhesive composition for a polarizing plate, an adhesive film formed from the same, a polarizing plate including the same, and an optical display including the same are disclosed. The adhesive film for a polarizing plate is formed from an adhesive composition including an epoxy compound and a (meth)acrylate compound, and the adhesive film has an FT-IR peak ratio of about 0.015 or lower as defined by Equation 1. Equation 1 FT-IR peak ratio=B/A (1) In Equation 1, A is the peak height of the peak attributable to the —(C═O)— bond at 1724 cm−1, and B is the peak height of the peak attributable to the —CH═CH— bond at 1636 cm−1.
An adhesive film for a polarizing plate, the adhesive film being formed from an adhesive composition for a polarizing plate comprising an epoxy component and a (meth)acrylate component, the epoxy component comprising a first epoxy compound having a first glass transition temperature and a second epoxy compound having a second glass transition temperature, the second glass transition temperature being different from the first glass transition temperature by 50° C. or more, wherein the adhesive film has an FT-IR peak ratio of about 0.015 or lower as defined by Equation 1:
Dependencies are inferred from the claim text.