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US 8,786,951 B2Granted
Composite optical film
AssigneeEternal Chemical Co., Ltd.
InventorsHsung-Hsing Wang, Po-Wen Lin, Yi-Chia Wang, Jui-Kai Hu
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Abstract
A composite optical film is provided. The composite optical film sequentially includes a substrate, a light diffusion layer, and a light-gathering layer. The light diffusion layer includes a binder and plural micro beads dispersed therein. The thickness of the light diffusion layer is 2-6 times of the average diameter of the micro beads, and the distance between adjacent micro beads is smaller than the average diameter of the micro beads. The light-gathering layer has plural light-gathering micro structures.
Claims13
A composite optical film, comprising:
- a substrate;
- a light diffusion layer disposed on the substrate and comprising a plurality of micro beads and a binder, wherein a thickness of the light diffusion layer is 2-6 times of an average diameter of the micro beads, a distance between adjacent micro beads is smaller than the average diameter of the micro beads, and a coating amount of the light diffusion layer is about 2.7 g/cm2-20 g/cm2;
- and
- a light-gathering layer disposed on the light diffusion layer and comprising a plurality of light-gathering micro structures.
1 more element
Dependencies are inferred from the claim text.