Anthraquinone compound, liquid crystal composition, cell and display device employing the same
AssigneeFUJIFILM Corporation
InventorsHisashi Okamura, Takashi Katoh
Life of this patent
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Abstract
A liquid crystal composition comprising at least one liquid crystal compound and at least one anthraquinone compound represented by formula (1) below: Formula (1) (wherein R2 to R8 each independently represents a hydrogen or substituent; Het is a sulfur or oxygen; B1 and B2 each independently represents an optionally substituted arylene, heteroarylene, cycloalkan-diyl or cycloalken-diyl; Q1 is a bivalent linking group; C1 is an optionally substituted alkyl, cycloalkyl, alkoxy, alkokycarbonyl or acyloxy; p, q and r each represents a number from 0 to 5 and n is a number from 1 to 3 satisfying 3≦(p+r)×n≦10; when plural {(B1)p-(Q1)q-(B2)r} are present, these may be the same or different) was disclosed
Claims19
The liquid crystal composition comprising at least one liquid crystal compound and at least one anthraquinone compound represented by formula (2) below:
- where S is a sulfur atom;
- A, B and C each independently represents an optionally substituted arylene, heteroarylene or cyclohexandiyl;
- D is an optionally substituted alkyl, cycloalkyl, alkoxy, alkoxycarbonyl or acyloxy;
- X1 and Z1 each independently represents a hydrogen atom, halogen atom, hydroxyl, optionally substituted amino, arylthio or heteroarylthio, and Y1 represents a hydrogen atom, halogen atom, hydroxyl, optionally substituted amino or arylthio provided X1, Y1 and Z1 are not all hydrogen.
A compound represented by formula (1-a) below:
- where S is a sulfur atom;
- A, B and C each independently represents an arylene, heteroarylene or cyclohexandiyl, wherein said arylene, heteroarylene or cyclohexandiyl may have substituent(s);
- D represents an optionally substituted alkyl, cycloalkyl, alkoxy, alkoxycarbonyl or acyloxy;
- Xa and Za each independently represents a hydrogen atom, optionally substituted amino, arylthio or heteroarylthio, ya represents a hydrogen atom, optionally substituted amino or arylthio;
- provided at least one of Xa, ya and Za represents an optionally substituted arylthio,
- wherein the -A-B-C- structure is connected through a single bond without any linking group between the rings.
The compound of 13, wherein Xa and Za are hydrogen, and ya is an arylthio which may have substituent(s).
The compound of 13, wherein A and B each independently represents an arylene which may have substituent(s);
- C represents an cyclohexandiyl which may have substituent(s);
- and D represents an optionally substituted alkyl.
Dependencies are inferred from the claim text.