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Optical bodies including rough strippable boundary layers and asymmetric surface structures

  • US 8,568,869 B2
  • Filed: 04/05/2006
  • Issued: 10/29/2013
  • Est. Priority Date: 04/06/2005
  • Status: Active Grant
First Claim
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1. An optical body, comprising:

  • a first optical film, a second optical film and at least one rough strippable boundary layer disposed between the first and second optical films adjacent to a surface of at least one of the first and second optical films, wherein at least one of the first and second optical films comprises a polymeric multilayer optical film;

    wherein a surface of the rough strippable boundary layer disposed adjacent to an optical film comprises a first plurality of surface structures with a first shape and the adjacent surface of the optical film comprises a second plurality of asymmetric surface structures substantially corresponding to said first plurality of surface structures, wherein the asymmetrical surface structures have a second shape comprising at least one dimension different from a corresponding dimension of the first shape.

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