Liquid crystalline composition, side chain type polymer liquid crystalline compound, light absorption anisotropic film, laminate, and image display device

A side chain type polymer liquid crystalline compound which is a copolymer, comprising:

• a repeating unit 1;
• and
• a repeating unit 2,
• wherein a content of the repeating unit 1 is 12 to 40 mass % with respect to a total mass of the side chain type polymer liquid crystalline compound,
• a content of the repeating unit 2 is 60 mass % or greater with respect to the total mass of the side chain type polymer liquid crystalline compound,
• the repeating unit 1 is a repeating unit represented by Formula (1),
• the repeating unit 2 does not correspond to the repeating unit represented by Formula (1), but is a repeating unit represented by Formula (2), and
• M1 in Formula (1) and M2 in Formula (2) have the same structure,
• in Formula (1), P1 represents a group represented by Formula (P1-A), (P1-B) or (P1-C) that is main chain of the repeating unit, L1 represents a single bond or a divalent linking group, SP1 represents a group including at least one selected from the group consisting of *—(CH2—CH2O)n1—*, an oxypropylene structure, a polysiloxane structure or a fluorinated alkylene structure, SP2 represents a spacer group, M1 represents a mesogenic group having three or more cyclic structures, and EWG represents an electron-withdrawing group having a Hammett's substituent constant σp of greater than 0, n1 represents an integer greater than or equal to 2, * represents a bonding position to L1 or M1, and
• in Formula (2), P2 represents group represented by Formula (P1-A), (P1-B) or (P1-C) that is a main chain of the repeating unit, L2 represents a single bond or a divalent linking group, SP3 represents a spacer group, M2 represents a mesogenic group having three or more cyclic structures, and T1 represents an electron-donating group having a Hammett's substituent constant σp of less than 0, and
• in Formulae (P1-A), (P1-B), and (P1-C), “*” represents a bonding position to L1 in Formula (1) or a bonding position to L2 in Formula (2), and R1, R2, and R3 each independently represent a hydrogen atom, a halogen atom, an alkyl group having 1 to 10 carbon atoms, or an alkoxy group having 1 to 10 carbon atoms.

A liquid crystalline composition comprising:

• a side chain type polymer liquid crystalline compound;
• and
• a dichroic substance,
• wherein the side chain type polymer liquid crystalline compound is a copolymer having repeating units 1 and 2, the repeating unit 1 is a repeating unit represented by Formula (1), the repeating unit 2 does not correspond to the repeating unit represented by Formula (1), but is a repeating unit represented by Formula (2),
• and M1 in Formula (1) and M2 in Formula (2) have the same structure, and
• in Formula (1), P1 represents a group represented by Formula (P1-A), (P1-B) or (P1-C) that is a main chain of the repeating unit, L1 represents a single bond or a divalent linking group, SP1 represents a group including at least one selected from the group consisting of *—(CH2—CH2O)n1—*, an oxypropylene structure, a polysiloxane structure or a fluorinated alkylene structure, SP2 represents a spacer group, M1 represents a mesogenic group, and EWG represents an electron-withdrawing group having a Hammett's substituent constant σp of greater than 0, n1 represents an integer greater than or equal to 2, * represents a bonding position to L1 or M1, and
• in Formula (2), P2 represents a group represented by Formula (P1-A), (P1-B) or (P1-C) that is a main chain of the repeating unit, L2 represents a single bond or a divalent linking group, SP3 represents a spacer group, M2 represents a mesogenic group having three or more cyclic structures, and T1 represents an electron-donating group having a Hammett's substituent constant σp of less than 0, and
• in Formulae (P1-A), (P1-B), and (P1-C), “*” represents a bonding position to the side chain type polymer liquid crystalline compound, and R1, R2, and R3 each independently represent a hydrogen atom, a halogen atom, an alkyl group having 1 to 10 carbon atoms, or an alkoxy group having 1 to 10 carbon atoms.