| 摘要 |
The present invention pertains to an optical film comprising a substrate and a microstructured layer on a surface of the substrate, wherein the microstructured layer comprises a plurality of columnar structures and the columnar structures comprise at least two members selected from the group consisting of a linear columnar structure with its height varying along the length direction, a linear columnar structure without its height varying along the length direction, a serpentine columnar structure with its height varying along the length direction, and a serpentine columnar structure without its height varying along the length direction. The optical film of the present invention enhances the brightness and efficiently reduces optical interference. |
