Dichromatic coloring matter for a colored liquid crystal display element
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United States of America Patent
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Aug 19, 1986
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N/A
app pub date -
Jun 4, 1984
filing date -
Jun 3, 1983
priority date (Note) -
Expired
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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).
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