SPD films and light valve laminates with improved durability

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United States of America Patent

PATENT NO 8670173
APP PUB NO 20120013969A1
SERIAL NO

13182087

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Abstract

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A moisture-resistant suspended particle device film comprising a cured suspended particle device emulsion having a plurality of uncrosslinked droplets of a liquid light valve suspension distributed throughout the cured emulsion; first and second glass or plastic sheets located outwardly from and sandwiching the cured emulsion, wherein located on an inner aspect of each sheet, adjacent the cured emulsion, is a thin, transparent, electrically conductive coating, the coating serving as an electrode to permit passage of an applied electric field through the cured emulsion; and a moisture-resistant barrier located around an entire outer peripheral edge portion of the film, wherein the barrier is comprised of a barrier material that eliminates or at least reduces passage of moisture from outside the film into the cured emulsion, thus preventing development of a light-frame pattern in the film that would otherwise be caused by the moisture. The disclosure also discloses forming a laminate comprising the above-described film, as well as methods of forming such films and laminates.

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Patent Owner(s)

Patent OwnerAddress
RESEARCH FRONTIERS INCORPORATED240 CROSSWAYS PARK DRIVE WOODBURY NY 11797

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chen, Xiao-Ping East Meadow, US 14 85
Saxe, Robert L New York, US 39 834
Slovak, Steven M North Massapequa, US 24 376
Wang, Dongyan Ithaca, US 61 2521

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