Electrochromic device and medium therefor
US4018508A · kind A · utility
22Cited by
4References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 14, 1975 |
| Grant date | Apr 19, 1977 |
| Priority date | — |
| Expiry date | Mar 14, 1995 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/1503
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An electrochromic medium and electrochromic devices containing such mediums comprising an electrochromically active material, an auxiliary redox system comprising reversibly oxidizable metallic ions, for example iron, a complexing agent for the metallic ions, particularly a carboxylic acid such as tartaric acid, and an inert solvent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.