Invention Grant
US09561629B2 Optical bodies including rough strippable boundary layers and asymmetric surface structures 有权
光学体包括粗糙的可剥离边界层和不对称表面结构

Optical bodies including rough strippable boundary layers and asymmetric surface structures
Abstract:
Optical bodies are disclosed that include an optical film and at least one rough strippable skin layer. The at least one rough strippable skin layer can include a continuous phase and a disperse phase. In some embodiments, the at least one rough strippable skin layer can include a first polymer, a second polymer different from the first polymer and an additional material that is substantially immiscible in at least one of the first and second polymers. In some exemplary embodiments, a surface of the at least one rough strippable skin layer adjacent to the optical film comprises a plurality of protrusions and the adjacent surface of the optical film comprises a plurality of asymmetric depressions substantially corresponding to said plurality of protrusions. Methods of making such exemplary optical bodies are also disclosed.
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