Eternal Chemical Co., Ltd.

Yi-Chia Wang

Hsung-Hsing Wang

Lung-Lin Hsu

Po-Wen Lin

Jui-Kai Hu

Shu-Hong Liu

Ting-Yuang Wu

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.

Composite optical film

The present invention provides an optical film comprising a substrate having a first optical surface and a second surface and a micro structure layer on the first optical surface of the substrate, wherein the micro structure layer comprises a plurality of first light-adjusting structures selected from the group consisting of prism columnar structures, conical columnar structures, solid angle structures and orange-segment like structures and a combination thereof and a plurality of second light-adjusting structures selected from the group consisting of arc columnar structures, lens-like structures, and capsule-like structures and a combination thereof, wherein at least a portion of the second light-adjusting structures has a height greater than those of all the first light-adjusting structures. The optical film of the present invention will not suffer the damage caused on the microstructure layers while achieving a light-gathering effect and effectively reducing optical interference.

Optical film

The subject invention provides an optical film, comprising a transparent substrate and a resin coating having a convex-concave structure on at least one surface of the substrate, wherein said resin coating comprises a plurality of organic particles and a binder, the organic particles being formed from a polyacrylate resin which comprises at least one acrylate monomer type having multiple functional groups as polymerization units, said multi-functional acrylate monomers being in an amount from 30 to 70 wt % based on the total weight of the monomers, and wherein the organic particles have a mean particle size, the particle size distribution of the organic particles ranging within about &#xb1;5% of the mean particle size, and wherein the organic particles are in an amount from about 180 to 320 parts by weight per 100 parts by weight of the solid contents of the binder.

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Kaohsiung, Taiwan

Yi-Chia Wang