Optical film

Details Optical film Optical film

2006-10-10

2006-10-10

Boutsikaris, Leonidas (Department: 2872)

Optical: systems and elements

Light interference

Produced by coating or lamina

C359S580000, C359S586000

Reexamination Certificate

active

07119959

ABSTRACT:
A film for optical applications which effectively prevents reflection of light on the surface of image display devices such as PDP, CRT and LCD, exhibits excellent scratch resistance and transmission of light, provides excellent adhesion between layers and can be produced at a low cost is disclosed. The film comprises (A) a high refractivity hard coat layer (the refractive index: 1.60 to 1.75, the thickness: 2 to 20 μm) comprising (a) an antimony-doped tin oxide having a needle shape (the average particle diameter along the major axis: 0.05 to 10 μm, the average aspect ratio: 3 to 100), (b) at least one other metal oxide and (c) a material cured with an ionizing radiation and (B) a low refractivity layer (the refractive index: 1.30 to 1.45, the thickness: 40 to 200 nm), which are successively laminated at least on one face of a substrate film.

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patent: 2002-355936 (2002-12-01), None

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