Electrochromic variable optical transmission device with a liquid electrolyte
First Claim
1. A variable light transmission device which comprises in combination a layer of a solid persistent electrochromic material in contact with a separate layer of liquid electrolyte, said layer of liquid electrolyte and said layer of solid electrochromic material being disposed between and each contacting one of a pair of conductive electrodes.
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Abstract
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.
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Citations
7 Claims
- 1. A variable light transmission device which comprises in combination a layer of a solid persistent electrochromic material in contact with a separate layer of liquid electrolyte, said layer of liquid electrolyte and said layer of solid electrochromic material being disposed between and each contacting one of a pair of conductive electrodes.
Specification