US 12,065,605 B2
Liquid crystal composition, dichroic material, light absorption anisotropic film, laminate, and image display device
Takashi Katou, Kanagawa (JP); Yoshiaki Takada, Kanagawa (JP); Keigo Shiga, Kanagawa (JP); and Kengo Saito, Kanagawa (JP)
Assigned to FUJIFILM Corporation, Tokyo (JP)
Filed by FUJIFILM Corporation, Tokyo (JP)
Filed on Mar. 2, 2022, as Appl. No. 17/684,988.
Application 17/684,988 is a continuation of application No. PCT/JP2020/031232, filed on Aug. 19, 2020.
Claims priority of application No. 2019-162243 (JP), filed on Sep. 5, 2019.
Prior Publication US 2022/0186119 A1, Jun. 16, 2022
Int. Cl. G02F 1/1333 (2006.01); C09K 19/24 (2006.01); C09K 19/38 (2006.01); C09K 19/60 (2006.01)
CPC C09K 19/24 (2013.01) [C09K 19/3852 (2013.01); C09K 19/601 (2013.01); C09K 2219/03 (2013.01)] 20 Claims
 
1. A liquid crystal composition comprising:
a liquid crystal compound; and
a dichroic material having a structure represented by Formula (1),

OG Complex Work Unit Chemistry
in Formula (1), Ar1 represents a (n1+2)-valent aromatic hydrocarbon group or heterocyclic group, Ar2 represents a (n2+2)-valent aromatic hydrocarbon group or heterocyclic group, and Ar3 represents a (n3+2)-valent aromatic hydrocarbon group or heterocyclic group,
in Formula (1), R1, R2, and R3 each independently represent a monovalent substituent, a plurality of R1's may be the same as or different from each other in a case of “n1≥2”, a plurality of R2's may be the same as or different from each other in a case of “n2≥2”, and a plurality of R3's may be the same as or different from each other in a case of “n3≥2”,
in Formula (1), k represents 1 or 2, in a case of “k=2”, a plurality of Ar2's may be the same as or different from each other and a plurality of R2's may be the same as or different from each other,
in Formula (1), n1, n2, and n3 each independently represent an integer of 0 to 4, where an expression of “n1+n2+n3≥0” is satisfied in a case of “k=1”, and an expression of “n1+n2+n3≥1” is satisfied in a case of “k=2”,
in Formula (1), m1 and m2 each independently represent 0 or 1, where m1+m2 is 1 or 2,
in Formula (1), R4 represents an aliphatic hydrocarbon group, an aromatic hydrocarbon group, or a heterocyclic group in a case of “m1=1”, and R5 represents an aliphatic hydrocarbon group, an aromatic hydrocarbon group, or a heterocyclic group in a case of “m2=1”,
in Formula (1), L1 represents a monovalent substituent in a case of “m1=0”, L1 represents a divalent linking group in a case of “m1=1”, L2 represents a monovalent substituent in a case of “m2=0”, and L2 represents a divalent linking group in a case of “m2=1”.