Multi-layered acrylic retardation film and fabrication method thereof

Multi-layered acrylic retardation film and fabrication method thereof

  • CN 101,903,175 B
  • Filed: 12/19/2008
  • Issued: 05/27/2015
  • Est. Priority Date: 12/20/2007
  • Status: Active Grant
First Claim
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1. a phase shift films, it comprisesFirst acrylate resin layer a);

  • WithSecond acrylate resin layer b), it is layered on described first acrylate resin layer two faces a), and comprises acrylic resin and content is the rubber components of 1 ~ 20 weight portion for the acrylic resin of 100 weight portions,Wherein, (R is postponed in the face of the described phase shift films represented by following formula 1 in) be 50 ~ 250 nanometers, and the thickness retardation (R of the described phase shift films represented by following formula 2 th) be 50 ~ 250 nanometers;

    [formula 1]R in

    (N x-N y

    d [formula 2]R th

    (N z-N y

    d Wherein, N xrefractive index in face in the direction of extension, N ybe perpendicular to refractive index in the face on the direction of this bearing of trend, N zbe the refractive index along its thickness direction, and d is the thickness of described film.

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