CPC C09K 19/3833 (2013.01) [C09K 19/2007 (2013.01); C09K 19/24 (2013.01); C09K 19/32 (2013.01); C09K 19/38 (2013.01); C09K 19/3852 (2013.01); C09K 19/60 (2013.01); G02F 1/1335 (2013.01); C09K 2019/2042 (2013.01); C09K 2019/2078 (2013.01)] | 20 Claims |
1. A liquid crystal composition comprising:
a side chain polymer liquid crystalline compound; and
a dichroic substance,
wherein the side chain polymer liquid crystalline compound is a copolymer having a repeating unit (1) containing a mesogenic group with a molecular weight of greater than 280 and a repeating unit (2) with a molecular weight of 280 or less, a content of the repeating unit (2) is less than 14% by mass with respect to a total mass of the side chain polymer liquid crystalline compound, a content of the dichroic substance is greater than 2% by mass and less than 30% by mass with respect to a total solid content of the liquid crystal composition, and
the repeating unit (2) is a repeating unit represented by Formula (2),
in Formula (2), R21 represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, L21 represents a single bond or a divalent linking group, P21 represents a monovalent group containing an acryloyl group, a methacryloyl group, a maleimide group, a styryl group, or a 1-cyclopentene-3,5-dione group.
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