Electrochromic device

Details Electrochromic device Electrochromic device

2005-10-04

2005-10-04

Epps, Georgia (Department: 2873)

Optical: systems and elements

Optical modulator

Light wave temporal modulation

C252S586000

Reexamination Certificate

active

06952299

ABSTRACT:
The present invention provides an electrochromic device in which a color during the coloring mode is gray. A lower ITO transparent electrode film12constituting a lower electrode film is formed on a transparent glass substrate10. On the lower ITO transparent film12, a nickel oxides film32constituting an oxidation coloring layer, a tantalum oxide film16constituting a solid-state electrolyte layer, a mixture film34of tungsten oxide and titanium oxide constituting a reduction coloring layer and an lower ITO transparent electrode film20constituting a upper electrode film are formed sequentially. The color during the coloring mode is gray and the color during the bleaching mode is achromatic.

REFERENCES:
patent: 5721633 (1998-02-01), Nagai et al.
patent: 5724187 (1998-03-01), Varaprasad et al.
patent: 6011642 (2000-01-01), Vink et al.
patent: 6266177 (2001-07-01), Allemand et al.
patent: 2002/0054419 (2002-05-01), Beteille et al.
patent: 2003/0227664 (2003-12-01), Agrawal et al.
patent: WO 02/12954 (2002-02-01), None
Cantao et al. “Inorganic Oxide Solid State Electrochromic Devices” Materials Science and Engineering, vol. B26, Sep. 1994, pp. 157-161.

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