Electrochromic material and electro-optical device using same
US5080471A · kind A · utility
42Cited by
11References
11Claims
0Family size
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Key dates
| Filing date | Apr 6, 1990 |
| Grant date | Jan 14, 1992 |
| Priority date | — |
| Expiry date | Apr 6, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/1524
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An oxidatively coloring electrochromic layer of composition M.sub.y CrO.sub.2+x (0.33.ltoreq.y.ltoreq.2.0 and x.ltoreq.2) where M=Li, Na or K with improved transmittance modulation, improved thermal and environmental stability, and improved resistance to degradation in organic liquid and polymeric electrolytes. The M.sub.y CrO.sub.2+x provides complementary optical modulation to cathodically coloring materials in thin-film electrochromic glazings and electrochromic devices employing polymeric Li.sup.+ ion conductors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.