薄型偏光膜、具有薄型偏光膜之光学积层体以及薄型偏光膜之制造方法

申请公布号：TWI525350

申请号：TW100131704

申请日期：2011.09.02

申请公布日期：2016.03.11

申请人：

日东电工股份有限公司

发明人：伊崎章典;喜多川丈治;后藤周作;上条卓史;森智博;宫武稔

分类号：G02B5/30(2006.01)

主分类号：G02B5/30(2006.01)

代理人：恽轶群;陈文郎

地址：日本

摘要：明系提供对环境负担小、且具有优良光学特性的薄型偏光膜。

主权项：一种薄型偏光膜，系于热可塑性树脂基材上形成聚乙烯醇系树脂层而制得者，用以形成前述聚乙烯醇系树脂层之聚乙烯醇系树脂的皂化度在99.0莫耳%以上(惟，排除99.0莫耳%之情况)；其厚度为10μm以下，单体穿透率为42.0%以上，偏光度为99.95%以上，且以离子色层分析法测定之碘含量为17.6g/(400mm×700mm□)以下。

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