Optical compensation films produced by a carrier-web-casting process
    10.
    发明授权
    Optical compensation films produced by a carrier-web-casting process 有权
    通过载体网络铸造工艺生产的光学补偿膜

    公开(公告)号:US07713595B2

    公开(公告)日:2010-05-11

    申请号:US11254109

    申请日:2005-10-18

    摘要: A method of forming an optical compensation film includes coating one or more first layers and one or more second layers onto a carrier substrate, and stretching the first layers and second layers simultaneously. The one or more first layers include a polymer having an out-of-plane birefringence (Δnth) not more negative than −0.005 and not more positive than +0.005, and the one or more second layers include a polymer having an out-of-plane birefringence more negative than −0.005 or more positive than +0.005. The overall in-plane retardation (Rin) of the optical compensation film is greater than 20 nm and the out-of-plane retardation (Rth) of the optical compensation film is more negative than −20 nm or more positive than +20 nm.

    摘要翻译: 形成光学补偿膜的方法包括将一个或多个第一层和一个或多个第二层涂覆到载体基底上,同时拉伸第一层和第二层。 一个或多个第一层包括具有不大于-0.005且不大于+0.005的正面的平面外双折射(&Dgr; n)的聚合物,并且所述一个或多个第二层包括具有外部 - 平面双折射比-0.005或更大的正负值比+0.005更负。 光学补偿膜的整体面内延迟(Rin)大于20nm,并且光学补偿膜的面外延迟(Rth)比+20nm的-20nm以上更加负。