Transparent laminates and optical filters for displays using same

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United States of America Patent

PATENT NO 6104530
SERIAL NO

08863562

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Transparent laminates which have high transparency and, moreover, excellent electromagnetic shielding characteristics and near-infrared cutting-off characteristics, and optical filters for displays using these transparent laminates. These transparent laminates are formed by laminating a transparent electrically conductive layer composed of high-refractive-index transparent film layers (B) and metal film layers (C) consisting of silver or a silver-containing alloy on one major surface of a transparent substrate (A) in such a way that a repeating unit comprising a combination of one high-refractive-index transparent film layer (B) and one metal film layer (C) is laminated three times or more, and further laminating one high-refractive-index transparent film layer (B) thereon. The transparent laminate has a sheet resistance of not greater than 3 .OMEGA./sq., a visible light transmittance of not less than 50%, and a light transmittance of not greater than 20% in a wavelength region longer than 820 nm. Optical filters for displays which serve to block leakage electromagnetic waves and near-infrared light from plasma displays can be acquired by using such a transparent laminate.

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Patent Owner(s)

  • ASAHI GLASS COMPANY, LIMITED

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fukuda, Shin Kanagawa-ken, JP 47 931
Koyama, Masato Aichi-ken, JP 110 1301
Oi, Ryu Kanagawa-ken, JP 20 261
Okamura, Tomoyuki Kanagawa-ken, JP 23 390
Yamazaki, Fumiharu Kanagawa-ken, JP 4 235
Yoshikai, Masaaki Aichi-ken, JP 3 145

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