Dichromatic coloring matter for a colored liquid crystal display element
US4607097A · kind A · utility
3Cited by
2References
3Claims
0Family size
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Key dates
| Filing date | Jun 4, 1984 |
| Grant date | Aug 19, 1986 |
| Priority date | — |
| Expiry date | Jun 4, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K19/606
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A dichromatic coloring matter for a colored liquid crystal display element comprising a compound of the general formula: ##STR1## where A and B each stand for ##STR2## where n is 0, 1, 2, 3 or 4, and X and Y each stand for ##STR3## where R.sub.1 and R.sub.2 stand for an alkyl group or hydrogen, --R (alkyl group) or --OR (alkoxy group).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.