Unsymmetrical dioxazine compound dichroic dye liquid crystal composition and liquid crystal display element
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United States of America Patent
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Aug 27, 2002
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N/A
app pub date -
May 26, 2000
filing date -
May 27, 1999
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Abstract
An unsymmetrical dioxazine compound represented by the formula (1-1) or (1-2) below, a dichroic dye, a liquid crystal composition containing the same, and a liquid crystal display element fabricated with the same: ##STR1## (In the formula, each of Y.sup.1 to Y.sup.3 stands for a group represented by the formula (2) or (3) ; X stands for H or the like; h is an integer of 0 to 2; A stands for phenylene or the like; E stands for phenylene or the like; G stands for H, F, or the like; i is an integer of 1 to 2; j is an integer of 0 to 2, each of J and M stands for phenylene or the like; and Q stands for H, F or the like.) ##STR2##
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