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    • 2. 发明公开
    • OPTICAL ARTICLE AND METHOD OF MAKING
    • 光学制品及其制造方法
    • EP2140293A4
    • 2014-04-30
    • EP08799811
    • 2008-03-27
    • 3M INNOVATIVE PROPERTIES CO
    • HEBRINK TIMOTHY JJONZA JAMES MBAY RANDY SCLARKE GRAHAM MLUCKING RAYMOND LYU TA-HUACOLLIER TERRY O
    • G02B5/30B29D11/00
    • B29D11/00798B33Y80/00Y10T428/1036
    • 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.
    • 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,以及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40GPa J / m,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。