| 摘要 |
The liquid crystal-base composition for an electro-optical device contains an anthraquinone pleochroic coloring agent of formula (I) as defined in claim 1, that is to say, with in particular at least one hydroxy or amino group in position 1 and a heterocyclic side chain which is directly substituted in position 2, or 2 and 6, or 3, or 3 and 7. The compounds (I) have a high order parameter and are stable, thereby imparting to the compositions the properties required for use thereof for example in a display device. <IMAGE> (I)
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