Patterned Gradient Polymer Film and Method

摘要

The present disclosure generally relates to patterned gradient polymer films and methods for making the same, and more particularly to patterned gradient optical films that have regions that include variations in optical properties such as refractive index, haze, transmission, clarity, or a combination thereof. The variation in optical properties can occur across a transverse plane of the film as well as through a thickness direction of the film.

主权项

1. A gradient polymer film, comprising:
a binder; and a plurality of nanovoids, wherein a local volume fraction of the plurality of nanovoids varies across a transverse plane of the gradient polymer film and varies along a first direction and a second direction orthogonal to the first direction, across the transverse plane.