OPTICAL FILM INCLUDING COLLIMATING REFLECTIVE POLARIZER AND STRUCTURED LAYER

摘要

An optical film including a collimating reflective polarizer and a structured layer disposed on a major surface of the collimating reflective polarizer. The structured layer includes a plurality of three-dimensional structures on an outer major surface of the structured layer facing away from the collimating reflective polarizer. The three-dimensional structures have a surface normal having an angle relative to a plane of the optical film that is in a range of about 35 degrees to about 55 degrees over at least 50 percent of a surface area of the three-dimensional structures.