Optical film and fabrication method thereof
An optical film and fabrication method thereof are disclosed. The optical film comprises a substrate and an anti-static layer disposed thereon. The anti-static layer comprises a resin layer and a plurality of anti-static particles, wherein the bottom half portion of the anti-static layer contains more than 60 wt % of the anti-static particles.
1. An optical film, comprising:
a substrate; and
an anti-static layer disposed on the substrate, wherein the anti-static layer comprises a resin layer with a plurality of anti-static particles dispersed therein, and the anti-static layer has a top half portion and a bottom half portion closer to the substrate than the top half portion,
wherein the bottom half portion has higher anti-static particle concentration than the top half portion , and the bottom half portion contains more than 60 wt% of the anti-static particles.
2. The optical film of claim 1 , wherein the bottom half portion of the anti-static layer contains 60 to 90 wt% of the anti-static particles.
3. The optical film of claim 1 , wherein the bottom half portion of the anti-static layer contains 70 to 90 wt% of the anti-static particles.
4. The optical film of claim 1 , wherein the substrate comprises glass, polymethacrylate, polycarbonate, polyethylene(PE), polyethylene terephthalate(PET), or triacetyl cellulose(TAC).
5. The optical layer of claim 1 , wherein the anti-static particles comprise antimony-doped tin oxide, tin oxide, zinc antimonite, antimony pentoxide, indium tin oxide, or aluminum-doped zinc oxide.
6. The optical layer of claim 1 , wherein the resin layer comprises ultraviolet-cured resin, thermal-cured resin, or electron-beam-cured resin.
7. The optical film of claim 1 , wherein the anti-static particles have a primary diameter of 5 to 100 nm.
8. The optical film of claim 1 , wherein the anti-static particles have a primary diameter of 10 to 40 nm.
9. The optical film of claim 1 , wherein the anti-static particles are 20 to 80 wt% of the anti-static layer.
10. The optical film of claim 1 , wherein the anti-static particles are 30 to 70 wt% of the anti-static layer.