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公开(公告)号：US10288796B2
公开(公告)日：2019-05-14
申请号：US15568897
申请日：2016-04-22
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Gary T. Boyd , Robert M. Emmons , Kenneth A. Epstein
Abstract: Optical films are described. In particular, optical films that include top and bottom structured surfaces are described. Films that may be suitable for use in backlights as turning films or recycling films are also described. Optical films described may include reflective polarizers and optically birefringent substrates.
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