MANUFACTURING METHOD FOR OPTICAL COMPENSATION FILM
    3.
    发明申请
    MANUFACTURING METHOD FOR OPTICAL COMPENSATION FILM 审中-公开
    光学补偿膜的制造方法

    公开(公告)号:US20140225288A1

    公开(公告)日:2014-08-14

    申请号:US14233499

    申请日:2012-07-04

    IPC分类号: G02B5/30

    摘要: A method for manufacturing a novel tilt alignment type optical compensation film formed using a non-liquid crystal polymer material, instead of a conventional tilt alignment type optical compensation film using a liquid crystal material. The method for manufacturing including: melting a non-liquid crystal polymer to prepare a molten resin; applying a shear force to the melted non-liquid crystal polymer by a shear force application device, thereby forming a film having an optical axis that tilts with respect to a thickness direction of the film; and stretching the film. The step of forming the film is carried out under conditions where a temperature T3 of the melted non-liquid crystal polymer, a glass transition point Tg of the non-liquid crystal polymer, and a temperature T2 of the shear force application device satisfy relationships represented by the following formulae (A) and (B): T3>Tg+25° C.; and  (A) T3>T2.  (B)

    摘要翻译: 制造使用非液晶聚合物材料形成的新型倾斜取向型光学补偿膜的方法,而不是使用液晶材料的常规倾斜对准型光学补偿膜。 制造方法包括:熔融非液晶聚合物以制备熔融树脂; 通过剪切力施加装置向熔融的非液晶聚合物施加剪切力,由此形成具有相对于膜的厚度方向倾斜的光轴的膜; 并拉伸薄膜。 形成膜的步骤在熔融的非液晶聚合物的温度T3,非液晶聚合物的玻璃化转变温度Tg和剪切力施加装置的温度T2满足关系的条件下进行 通过下式(A)和(B):T3> Tg + 25℃。 和(A)T3> T2。 (B)