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US 10,927,260 B2Granted
Coloring composition, light absorption anisotropic film, laminate, and image display device
AssigneeFUJIFILM Corporation
InventorsWataru Hoshino, Masaki Ota, Masatoshi Mizumura, Takashi Katou, Yoshiaki Takada, Yoji Ito, Daisuke Kashiwagi, Yuya Hamaguchi
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Abstract
Provided are a coloring composition with which a light absorption anisotropic film having excellent durability can be formed, a light absorption anisotropic film, a laminate, and an image display device. A coloring composition according to the invention contains a dichroic dye compound having a structure represented by Formula (1D) and a liquid crystalline compound.
Claims14
A coloring composition comprising:
- A dichroic dye compound having a structure represented by Formula (1D);
- and
- a liquid crystalline compound, wherein
- in Formula (1D), C1 and C2 each independently represent a monovalent substituent, and at least one of C1 and C2 represents a crosslinkable group,
- in Formula (1D), M1 represents —O—, —S—, —O—CO—O—, —CO—NRN—, —O—CONRN—, —SO2—, —SO—, an alkylene group, a cycloalkylene group, an alkenylene group, and a group obtained by combining two or more of the above groups, RN represents a hydrogen atom or an alkyl group, M2 represents a divalent linking group, and in at least one of M1 and M2, the number of atoms of a main chain is 4 or more,
- in Formula (1D), Ar1 and Ar2 each independently represent any one of a phenylene group which may have a substituent, a naphthylene group which may have a substituent, and a biphenylene group which may have a substituent,
- in Formula (1D), E represents any one of a nitrogen atom, an oxygen atom, and a sulfur atom,
- in Formula (1D), R1 represents a hydrogen atom or a substituent,
- in Formula (1D), R2 represents a hydrogen atom or an alkyl group which may have a substituent,
- in Formula (1D), n represents 0 or 1, such that in a case where E is a nitrogen atom, n is 1, and in a case where E is an oxygen atom or a sulfur atom, n is 0,
- in Formula (1D), at least one of the following Condition 1 and Condition 2 is satisfied,
- Condition 1:
- C1 is a crosslinkable group, and the number of atoms of a main chain of M1 is 4 or more,
- Condition 2:
- C2 is a crosslinkable group, and the number of atoms of a main chain of M2 is 4 or more,
- the liquid crystalline compound is a high-molecular-weight liquid crystalline compound having a repeating unit represented by Formula (1), or both a repeating unit represented by Formula (2) and a repeating unit represented by Formula (3),
- in Formula (1), Formula (2) and Formula (3), R represents a hydrogen atom or a methyl group, L represents a single bond or a divalent linking group, B represents a hydrogen atom, a halogen atom, a cyano group, an alkyl group, an alkoxy group, an amino group, an oxycarbonyl group, an acyloxy group, an acylamino group, an alkoxycarbonylamino group, a sulfonylamino group, a sulfamoyl group, a carbamoyl group, an alkylthio group, a sulfonyl group, a sulfinyl group, or a ureido group, C represents a crosslinkable group, and M represents a mesogenic group,
- the crosslinkable group is an acryloyl group or a methacryloyl group, and
- the dichroic dye compound and the liquid crystalline compound are aligned at a high alignment degree.
16 more elements
Dependencies are inferred from the claim text.