American Cyanamid Company

Marion Douglas Meyers

Henry Patrick Landi

Electro-optical device useful in control of visible and infrared absorption by windows in homes, commercial buildings and the like, typically comprising in sandwiched arrangement a pair of electrodes, and a film of a transition metal compound and a liquid electrolyte disposed between the electrodes is provided. The device exhibits coloration and bleaching thereof over large areas by control of, the polarity of an applied electric field.

Electrochromic variable optical transmission device with a liquid

A counter electrode structure of a transition metal electrochromic compound for use in an electro-optical device, which is useful in control of visible and infrared absorption by windows, in data display devices and the like, typically comprising in sandwich arrangement a pair of electrodes, and disposed therebetween, a layer of transition metal electrochromic compounds and a semi-solid highly conductive sulfuric acid gel electrolyte, one of the electrodes being said counter electrode. The gel exhibits good conductivity, stability and compatibility with the electrochromic layers. The present counter electrode is more efficient and has a longer lifetime.

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Stamford, CT, United States of America

Marion Douglas Meyers