Electrochromic compound, electrochromic composition, and display element
US10626133B2 · kind B2 · utility
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3Claims
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Key dates
| Filing date | Sep 5, 2018 |
| Grant date | Apr 21, 2020 |
| Priority date | — |
| Expiry date | Sep 5, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2203/02
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
To provide an electrochromic compound, represented by the following general formula where X1, X2, X3, X4, X5, X6, X7 and X8 are each independently a hydrogen atom or a monovalent substituent; R1 and R2 are each independently a monovalent substituent; A− and B− are each independently a monovalent anion; and Y is represented by the following general formula (II) or (III): where X9, X10, X11, X12, X13, X14, X15, X16, X17, and X18 are each independently a hydrogen atom or a monovalent substituent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.