OPTICAL FILM

摘要

An optical film including a substrate and a first material layer is provided. The first material layer includes a plurality of first optical structures and a plurality of first auxiliary optical structures. Each of the first optical structures includes a first base portion and a first rounded portion. The first base portion has a first bottom surface connected to the substrate and a first top surface opposite to the first bottom surface. The first rounded portion is disposed on the first top surface, and the first rounded portion has a first arc surface. Each of the first auxiliary optical structures has a first auxiliary arc surface. The first optical structures and the first auxiliary optical structures extend along a first extending direction and being alternately arranged on the substrate in an arranging direction perpendicular to the first extending direction.

主权项

1. An optical film, comprising:
a substrate, having a first surface and a second surface opposite to the first surface; and a first material layer, comprising:
a plurality of first optical structures, and each of the first optical structures comprising:
a first base portion, having a first bottom surface connected to the first surface and a first top surface opposite to the first bottom surface; anda first rounded portion, disposed on the first top surface, and the first rounded portion having a first arc surface; anda plurality of first auxiliary optical structures, each of the first auxiliary optical structures having a first auxiliary arc surface, the first optical structures and the first auxiliary optical structures extending along a first extending direction, and the first optical structures and the first auxiliary optical structures being alternately arranged on the first surface in an arranging direction perpendicular to the first extending direction.