申请人:Komatsu Shinichi
公开号:US20090156770A1
公开(公告)日:2009-06-18
A retardation film, formed by stretching a film including a norbornene-based, ring-opening polymer containing a structural unit (A) represented by a formula (1), has high transparency, excellent wavelength dispersion characteristics in a single layer, is capable of providing specific retardation to broadband light, is extremely adhesive to other materials, is capable of attaining optical characteristics that are unique among negative birefringence characteristics, and is capable of providing a reverse dispersion of birefringence wavelength dispersion characteristics. The present invention also provides a liquid crystal display device using the foregoing film.
由于拉伸包含环氧化诺博尔烯基聚合物的薄膜形成的延迟膜,包含一个由公式(1)表示的结构单元(A),具有高透明度,在单层中具有优异的波长色散特性,能够为宽带光提供特定的延迟,极易黏附于其他材料,能够获得负双折射特性中独特的光学特性,并能够提供双折射波长色散特性的反向色散。本发明还提供了使用上述膜的液晶显示器件。