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Invention Grant
CN106978111B 偏光板用粘着膜、包括其的偏光板及光学显示器 有权

偏光板用粘着膜、包括其的偏光板及光学显示器
Abstract:
本发明涉及一种偏光板用粘着膜、包含其的偏光板及光学显示器。所述偏光板用粘着膜由包含(甲基)丙烯酸共聚物及纤维素酯粘合剂的粘着组合物形成。所述(甲基)丙烯酸共聚物含有烷基、羟基、脂环基及杂脂环基。所述粘着膜在30℃下的模量是约100,000帕或大于100,000帕。本发明提供的偏光板用粘着膜，其在室温下展现高模量以便增加在所述粘着膜上的偏光板的铅笔硬度，而且在高温和/或高温/高湿度条件下展现明显较低的模量以便抑制漏光，同时改善耐久性。
Abstract(English):

An adhesive film for polarizing plates, a polarizing plate including the same, and an optical display including the same are provided. An adhesive film for polarizing plates is formed of an adhesive composition including a (meth)acrylic copolymer and a cellulose ester binder. The (meth)acrylic copolymer contains an alkyl group, a hydroxyl group, an alicyclic group, and a hetero-alicyclic group. The adhesive film has a modulus at 30° C. of about 100,000 Pa or more.

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