Composition for electrochromic devices and electrochromic display device using the same
US8462419B2 · kind B2 · utility
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7Claims
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Key dates
| Filing date | Oct 27, 2011 |
| Grant date | Jun 11, 2013 |
| Priority date | — |
| Expiry date | Feb 6, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2202/04
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
There is provided a composition for electrochromic devices which clearly present only two states, a white-colored state and a decolored state. The composition for electrochromic devices contains (A) a specific quaternary ammonium salt, (B) a supporting electrolyte containing bromide ion, and (C) a solvent containing water as an essential component, and (A) is soluble in (C).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.