SPD films and light valves incorporating overcoatings which...

Details SPD films and light valves incorporating overcoatings which... SPD films and light valves incorporating overcoatings which...

2011-04-05

2011-04-05

Mack, Ricky L (Department: 2873)

Optical: systems and elements

Optical modulator

Light wave temporal modulation

Reexamination Certificate

active

07920321

ABSTRACT:
An electro-optical device, e.g., a suspended particle device (SPD) adapted for controlling the transmission of radiation wherein the device is provided with at least one layer of an overcoating adapted to enhance adhesion on at least a portion of a surface between a film serving as a light modulating element and electrode means for applying an electrical field to said film, wherein the overcoating is formed from a material comprising a member selected from the group consisting of (a) titanium dioxide (TiO2) alone and (b) a combination of SiOxand an inorganic material having an index of refraction at 589 nm greater than 1.54. A method of producing the device with the application of such overcoating is additionally described.

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International Search Report and Written Opinion dated Feb. 5, 2009 corresponding tp International patent Application No. PCT/US 08/13249.
Extended European Search Report dated Dec. 1, 2010 in corresponding European Patent Application No. 08855938.0 (Publication No. 2225593).

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