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US 3,940,205 AGranted
Electrochromic device having an indium electrode
AssigneeRCA Corporation
InventorsRichard Seely Crandall, Brian Wilfred Faughnan
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Abstract
A layer of electrochromic material is on a substrate. An acid electrolyte is on the layer of electrochromic material. An indium electrode is utilized to produce coloration in the layer of electrochromic material without the need for any external electrical power. If a conductor layer is disposed between the substrate and the layer of electrochromic material, the device operates under a biasing voltage with substantially no polarization.
Claims16
An electrochromic device comprising:
- a substrate,
- a layer of electrochromic material on said sustrate,
- an electrolyte on at least a portion of said layer of electrochromic material, and
- an electrode for contacting said electrolyte, said electrode being of a material capable of dissolving and forming positive ions when in contact with said electrolyte whereby coloration occurs in said layer of electrochromic material.
1 more element
Dependencies are inferred from the claim text.