Patent ID: 9244284
Filing Date: 2016-01-26
CPC Classification: G02B,H04N

Claim Text:
1. A light redirecting film configured to be used in an autostereoscopic backlight, the film defining a plane and having opposed first and second structured surfaces along the plane, the first structured surface comprising lenticular features and the second structured surface comprising prismatic features, wherein each of the prismatic features has a prism optical axis, and wherein the prismatic features include a first plurality of prismatic features, where a first one of the prismatic features of the first plurality has a first prism optical axis that is tilted relative to a thickness axis of the film perpendicular to the plane and a second one of the prismatic features has a second prism optical axis that is substantially parallel to the thickness axis, and wherein the first plurality of prismatic features are arranged such that they have respective amounts of tilt that change across the film from larger values at the first prismatic feature of the first plurality to smaller values at the second prismatic feature.