Optical article and method of making
    39.
    发明授权
    Optical article and method of making 有权
    光学文章和制作方法

    公开(公告)号:US07604381B2

    公开(公告)日:2009-10-20

    申请号:US11735684

    申请日:2007-04-16

    IPC分类号: F21V5/00 C09K19/00 G02B5/02

    摘要: Disclosed herein is an optical article having a top layer with a structured surface that collimates light, a core layer secured to the top layer opposite the structured surface, and a bottom layer secured to the core layer opposite the top layer. Either the top layer or the core layer includes a first extrudable polymer having a flexural modulus of greater than 2.5 GPa, and the other layer includes a second extrudable polymer having a flexural modulus of 2.5 GPa or less, an impact strength of greater than about 40 J/m, and tensile elongation at break of greater than about 5%. The bottom layer includes a third extrudable polymer. The bottom layer of the optical article may be structured to diffuse light. One or two optical articles may be secured to an optical film such as a polarizer film. Methods and display devices are also disclosed herein.

    摘要翻译: 本文公开了一种光学制品,其具有顶层,其具有准直光的结构化表面,固定到与结构化表面相对的顶层的芯层和固定到与顶层相对的芯层的底层。 顶层或芯层包括具有大于2.5GPa的挠曲模量的第一可挤出聚合物,另一层包括弯曲模量为2.5GPa或更小的第二可挤出聚合物,冲击强度大于约40 J / m,拉伸断裂伸长率大于约5%。 底层包括第三可挤出聚合物。 光学制品的底层可以被构造为漫射光。 一个或两个光学制品可以固定到诸如偏振片的光学膜。 本文还公开了方法和显示装置。