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发明公开
CN102116889A 偏光片、其制备方法和装备有该偏光片的偏光板 有权

偏光片、其制备方法和装备有该偏光片的偏光板
摘要：
本发明公开了偏光片、其制备方法和装备有该偏光片的偏光板。所述偏光片包括聚乙烯醇类树脂膜，在所述聚乙烯醇类树脂膜中碘通过吸附取向，其中以下公式I表示的碘取向率为约20至约30％，优选约10至约20％，且所述偏光片具有约10至约20％的硼酸含量，其中RI为845.1nm、903.3nm、952.1nm、1000.0nm、1046.5nm和1092.7nm红外区中碘的平均面内延迟值，且RPVA为845.1nm、903.3nm、952.1nm、1000.0nm、1046.5nm和1092.7nm红外区中聚乙烯醇类树脂的平均面内延迟值。
摘要（英）：

The present invention discloses a polarizer, a method for preparing the same, and a polarizing plate provided with the same. The polarizer includes a polyvinyl alcohol-based resin film in which iodine is oriented by adsorption, wherein an iodine orientation ratio, represented by the following Equation I, is about 20% to about 30%, optimally about 10% to about 20%, and the polarizer includes about 10% to about 20% of boric acid, iodine orientation ratio=RI/RPVA, wherein RI is an average in-plane retardation value of iodine in infrared regions of 845.1 nm, 903.3 nm, 952.1 nm, 1000.0 nm, 1046.5 nm, and 1092.7 nm, and RPVA is an average in-plane retardation value of a polyvinyl alcohol-based resin in infrared regions of 845.1 nm, 903.3 nm, 952.1 nm, 1000.0 nm, 1046.5 nm, and 1092.7 nm.

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