申请人:FUJIFILM Corporation
公开号:US11001653B2
公开(公告)日:2021-05-11
An object of the present invention is to provide an optical film having an optically anisotropic layer having excellent durability, and a polarizing plate and an image display device using the same. This optical film of the present invention is an optical film at least having an optically anisotropic layer, in which the optically anisotropic layer is a layer obtained by polymerizing a polymerizable liquid crystal composition containing a predetermined liquid crystal compound and a polymerization initiator, and the optically anisotropic layer has a density of 1.20 g/cm3 or more and a crosslinking point density of 0.0016 mol/cm3 or more.
本发明的目的是提供一种光学薄膜,该光学薄膜具有耐久性极佳的光学各向异性层,以及使用该光学薄膜的偏光板和图像显示装置。本发明的光学薄膜是一种至少具有光学各向异性层的光学薄膜,其中光学各向异性层是通过聚合含有预定液晶化合物和聚合引发剂的可聚合液晶组合物而得到的层,光学各向异性层的密度为 1.20 g/cm3 或更高,交联点密度为 0.0016 mol/cm3 或更高。