CPC G02F 1/133607 (2021.01) [G02F 1/133603 (2013.01)] | 14 Claims |
1. An optical film, comprising:
a substrate layer; and
at least two optical layers, which are stacked on the substrate layer and have complementary microstructures filled with each other, wherein the optical layer which closer to the substrate layer is the first optical layer, and the optical layer which farther from the substrate layer is the second optical layer, the refractive index of the first optical layer is smaller than the refractive index of the second optical layer, and the microstructure of the second optical layer has an acute angle.
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