Dichoric dye for color liquid crystals having halogen substituted in perylene structure
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United States of America Patent
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Oct 25, 1988
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N/A
app pub date -
Nov 20, 1986
filing date -
Nov 29, 1985
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Expired
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Abstract
A dichroic dye for coloring liquid crystal compositions are disclosed which is represented by the following general formula: ##STR1## in which Dye 1 and Dye 2 each represents a group of atoms necessary to form a linear dye structure containing an azo, azomethine or ester group; X represents a halogen atom; and n represents an integer of from 1 to 10. The dye is suited for use in color liquid crystal display devices, e.g., of guest-host type.
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