OPTICAL FILM HAVING MICROSTRUCTURE LAYER ON BOTH SIDES

摘要

An optical film having a microstructure layer on both sides comprises a transparent substrate, a first microstructure layer, and a second microstructure layer. The transparent substrate has a first optical surface and a second optical surface opposite the first optical surface. The first microstructure layer is located on the first optical surface, and comprises a plurality of cylindrical structures. Each of the cylindrical structures has a curved surface. The second microstructure layer is located on the second optical surface, and comprises a plurality of prism structures. Each of the prism structures has a first surface to perpendicular to the transparent substrate and a second surface having a reflection center, which aligns with one of the corresponding cylindrical structures.

主权项

1. An optical film having a microstructure layer on both sides, comprising:
a transparent substrate having a first optical surface and a second optical surface opposite the first optical surface; a first microstructure layer located on the first optical surface, and comprising a plurality of cylindrical structures, each of the cylindrical structures having a curved surface; a second microstructure layer located on the second optical surface, and comprising a plurality of prism structures, each of the prism structures having a to first surface perpendicular to the transparent substrate and a second surface having a reflection center, wherein the reflection center aligns with one of the corresponding cylindrical structures.