| 摘要 |
A liquid crystalline coating solution which comprises: an azo compound represented by the following general formula (1); and a solvent to dissolve the azo compound: wherein Q1 is an aryl group which may have any substituent group; Q2 is an arylene group which may have any substituent group; R is a hydrogen atom, an alkyl group having 1 to 3 carbon atoms, an acetyl group, a benzoyl group, or a phenyl group (these groups may have any substituent groups); and M is a counter ion.
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