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公开(公告)号:US20130100529A1
公开(公告)日:2013-04-25
申请号:US13709932
申请日:2012-12-10
Applicant: NITTO DENKO CORPORATION
Inventor: Takeharu KITAGAWA , Shusaku GOTO , Minoru MIYATAKE , Tomohiro MORI , Takashi KAMIJO , Kentaro YOSHIDA , Satoru KUNIKATA
IPC: G02B5/30
CPC classification number: G02B5/30 , B29C55/026 , B29C65/00 , B29D11/00 , B29K2029/04 , B29K2067/00 , B29K2995/0034 , G02B1/105 , G02B1/14 , G02B5/3033 , G02B5/3083 , G02F1/133528 , G02F2001/133638 , G02F2201/50 , G02F2202/22 , G02F2202/28 , H01L2924/30107 , Y10T428/1041 , Y10T428/2495 , Y10T428/265 , H01L2924/00
Abstract: Provided is an optical display device using a polarizing film which has a thickness of 10 μm or less and exhibits high optical characteristics. The optical display device comprises a continuous web of polarizing film which is made of a polyvinyl alcohol type resin having a molecularly oriented dichroic material, and formed through stretching to have a thickness of 10 μm or less and satisfy conditions expressed by the following formulas: P>−(100.929T-42.4−1)×100 (where T
Abstract translation: 提供一种使用厚度为10μm以下并具有高光学特性的偏振膜的光学显示装置。 该光学显示装置包括由具有分子取向的二色性材料的聚乙烯醇型树脂制成的连续的偏振片卷材,通过拉伸形成为10μm以下的厚度,并满足下述式表示的条件:P > - (100.929T-42.4-1)×100(其中T <42.3); 并且P> = 99.9(其中T> = 42.3),其中T是单层透射率,P是极化率。 偏光膜可以通过将由不可结晶的酯型热塑性树脂基材和形成在基材上的聚乙烯醇型树脂层构成的层压体进行由初步的空气内拉伸和硼酸的两段拉伸 溶液拉伸。