SPD FILMS AND LIGHT VALVE LAMINATES WITH IMPROVED DURABILITY
First Claim
1. A moisture-resistant suspended particle device (SPD) film comprising:
- a) a cured suspended particle device emulsion having a plurality of uncrosslinked droplets of a liquid light valve suspension distributed throughout the cured emulsion;
b) first and second glass or plastic sheets, said sheets located outwardly from and sandwiching said cured emulsion wherein, located on an inner aspect of each of said first and said second sheet, adjacent said cured emulsion, is a thin, transparent electrically conductive coating, said coatings serving as an electrode to permit passage of an applied electric field through said cured emulsion, andc) a moisture-resistant barrier located around an entire outer peripheral edge portion of said film, wherein the barrier is comprised of a barrier material that eliminates or at least reduces passage of moisture from outside said film into the cured emulsion, thus preventing development of a light frame pattern in said film otherwise caused by said moisture.
1 Assignment
0 Petitions
Accused Products
Abstract
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.
26 Citations
27 Claims
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1. A moisture-resistant suspended particle device (SPD) film comprising:
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a) a cured suspended particle device emulsion having a plurality of uncrosslinked droplets of a liquid light valve suspension distributed throughout the cured emulsion; b) first and second glass or plastic sheets, said sheets located outwardly from and sandwiching said cured emulsion wherein, located on an inner aspect of each of said first and said second sheet, adjacent said cured emulsion, is a thin, transparent electrically conductive coating, said coatings serving as an electrode to permit passage of an applied electric field through said cured emulsion, and c) a moisture-resistant barrier located around an entire outer peripheral edge portion of said film, wherein the barrier is comprised of a barrier material that eliminates or at least reduces passage of moisture from outside said film into the cured emulsion, thus preventing development of a light frame pattern in said film otherwise caused by said moisture. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method for preventing formation of a light frame on a surface of a suspended particle device (SPD) film, said method comprising:
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a) providing a cured suspended particle device film, said film comprising a cured suspended particle device emulsion having a plurality of uncrosslinked droplets of a liquid light valve suspension distributed throughout said cured emulsion, said film further comprising first and second glass or plastic sheets located outwardly from and sandwiching said cured emulsion, wherein, located on an inner aspect of both said first and said second sheet, adjacent the cured emulsion, is a thin, transparent, electrically conductive coating that serves as an electrode to permit passage of an applied electric film through the cured emulsion; and b) providing a moisture-resistant barrier, said barrier comprising at least one hydrophobic material, around an entire outer peripheral edge portion of said film, wherein the barrier is comprised of a material that eliminates or at least reduces passage of moisture from outside said film into the cured emulsion, thus preventing development of a light frame pattern in said film otherwise caused by said moisture. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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Specification