The dichroism pigment, and the liquid crystal constituent which uses that, the dichroism pigment which

摘要

PROBLEM TO BE SOLVED: To provide a dichroic pigment which can easily be produced and has a high order parameter, and to provide a liquid crystal composition and a liquid crystal display element each using the dichroic pigment.;SOLUTION: This invention provides the dichroic pigment having a partial structure represented by structural formula (I) (wherein, R¹ is an alkyl; the ring A¹ and the ring A² are each independently 1,4-phenylene group or (E)-cyclohexan-1,4-diyl group; L¹ is a divalent linkage group not containing a cyclic structure and an azo bond); a liquid crystal composition containing the dichroic pigment; and a liquid crystal display element having a liquid crystal phase containing the liquid crystal composition.;COPYRIGHT: (C)2009,JPO&INPIT