Dichroic dye, composition thereof, and liquid crystal composition and liquid crystal display element containing the same
First Claim
Patent Images
1. A compound having formula (I):
-
whereinA is B is —
CHC(CN)COOR4 and X and Y are both hydrogen when A is wherein R1, and R4 are each independently a C1-10 alkyl group which may be substituted by one or more fluorine atoms; and
B is —
NR6R7 and X and Y are different and X is a C1-4 alkyl group, and Y is Cl, Br, I, a C1-4 alkyl group, —
OCH3, or —
OC2H5 or X and Y, being the same, are H, Cl, Br, I, a C1-4 alkyl group, —
OCH3, or —
OC2H5 when A is wherein R5 is —
CH3 or —
C2H5, and R6 and R7 are each independently a C1-10 alkyl group, —
CH2CH2(CF2)mF, wherein m is an integer of 1 to 10 and R3 is an C1-4 alkyl group.
1 Assignment
0 Petitions
Accused Products
Abstract
Dichroic dyes, dichroic dye compositions, and liquid crystal composition and liquid crystal display element containing the dichroic dyes. The dichroic dye has increased solubility and stability.
-
Citations
24 Claims
-
1. A compound having formula (I):
-
wherein A is B is —
CHC(CN)COOR4 and X and Y are both hydrogen when A iswherein R1, and R4 are each independently a C1-10 alkyl group which may be substituted by one or more fluorine atoms; and B is —
NR6R7 and X and Y are different and X is a C1-4 alkyl group, and Y is Cl, Br, I, a C1-4 alkyl group, —
OCH3, or —
OC2H5 or X and Y, being the same, are H, Cl, Br, I, a C1-4 alkyl group, —
OCH3, or —
OC2H5 when A iswherein R5 is —
CH3 or —
C2H5, and R6 and R7 are each independently a C1-10 alkyl group, —
CH2CH2(CF2)mF,wherein m is an integer of 1 to 10 and R3 is an C1-4 alkyl group. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24)
-
-
2. A compound having formula (III):
-
wherein R1 and R4 are each independently a C1-10 alkyl group which may be substituted by one or more fluorine atoms. - View Dependent Claims (3, 4, 5)
-
-
6. A compound having formula (IV):
-
wherein X and Y are different and X is a C1-4 alkyl group, and Y is Cl, Br, I, a C1-4 alkyl group, —
OCH3, or —
OC2H5, or X and Y, being the same, are Cl, Br, I, a C1-4 alkyl group, —
OCH3, or —
OC2H5;
R5 is —
CH3 or —
C2H5; and
R6 and R7 are each independently a C1-10 alkyl group, —
CH2CH2(CF2)mF,wherein m is an integer of 1 to 10 and R3 is a C1-4 alkyl group. - View Dependent Claims (7, 8, 9, 10, 11)
-
-
12. A compound having formula (V):
-
wherein OR9 is OC4H8F, or wherein n is an integer of 1 to 10. - View Dependent Claims (13, 14)
wherein n is an integer of 1 to 6. -
14. The compound as claimed in claim 13, wherein OR9 is OC4H8F.
-
-
15. A composition of dichroic dyes, which includes a compound selected from the group consisting of a compound having formula (I):
-
wherein A is B is —
CHC(CN)COOR4 and X and Y are both hydrogen when A iswherein R1, and R4 are each independently a C1-10 alkyl group which may be substituted by one or more fluoride atoms; and B is —
NR6R7 and X and Y are different and X is a C1-4 alkyl group, and Y is Cl, Br, I, a C1-4 alkyl group, —
OCH3, or —
OC2H5 or X and Y, being the same, are H, Cl, Br, I, a C1-4 alkyl group, —
OCH3, or —
OC2H5 when A iswherein R5 is —
CH3 or —
C2H5, and R6 and R7 are each independently a C1-10 alkyl group, —
CH2CH2(CF2)mF,wherein m is an integer of 1 to 10 and R3 is an C1-4 alkyl group; and a compound having formula (V);
wherein OR9 is OC4H8F, or wherein n is an integer of 1 to 10. - View Dependent Claims (16)
-
Specification