Electrochromic compound, electrochromic composition, display element, and dimming element
US9932522B2 · kind B2 · utility
4Cited by
7References
12Claims
0Family size
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Key dates
| Filing date | Jun 17, 2015 |
| Grant date | Apr 3, 2018 |
| Priority date | — |
| Expiry date | Jun 17, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2001/1555
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
To provide an electrochromic compound, represented by the following general formula (I), where Ar1 is a pyridinium ring having a structure represented by the following general formula (IIa), (IIb), or (IIc), where Ar2 is a monovalent heterocyclic ring which may have a substituent, but Ar2 is not a pyridinium ring; R1 to R8 are each independently a monovalent group which may have a functional group, where the monovalent group may have a substituent; A is a monovalent group which may have a functional group, where the monovalent group may have a substituent; and B− is a monovalent anion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.