Liquid crystal compounds, and liquid crystal displays and photochromic materials comprising the liquid crystal compounds
A liquid crystal compound of Formula (I) is provided. In Formula (I), A is benzene, naphthalene, pyridine, furan, thiophene or a single bond, D is benzene, naphthalene, pyridine, furan, thiophene or a single bond, R 1 and R 2 are C1-10 alkyl, C1-10 alkoxy, fluoro or trifluoro methyl, E is benzene, naphthalene, pyridine, furan, thiophene or a single bond, W is —CO—O—, —O—CO—, —O—, —CH 2 —CH 2 —, —CH═CH—, —CH 2 —O— or a single bond, Z is benzene, naphthalene, pyridine, furan, thiophene or a single bond, Y is hydrogen, methyl, ethyl or propyl, m is 0, 1 or 2, p is 0, 1 or 2, r is 0, 1 or 2, q is 0, 1 or 2, and n is 0, 1, 2 or 3. The invention also provides a liquid crystal display and photochromic material including the compound.
1. A liquid crystal compound of Formula (I):
wherein
A is benzene, naphthalene, pyridine, furan, thiophene or a single bond;
D is benzene, naphthalene, pyridine, furan, thiophene or a single bond;
R 1 and R 2 are C1-10 alkyl, C1-10 alkoxy, fluoro or trifluoro methyl;
E is benzene, naphthalene, pyridine, furan, thiophene or a single bond;
W is —CO—O—, —O—CO—, —O—, —CH 2 —CH 2 —, —CH 2 —O— or a single bond;
Z is benzene, naphthalene, pyridine, furan, thiophene or a single bond;
Y is hydrogen, methyl, ethyl or propyl;
m is 0, 1 or 2;
p is 0, 1 or 2;
r is 0, 1 or 2;
q is 0, 1 or 2; and
n is 0, 1, 2 or 3.
2. The liquid crystal compound as claimed in claim 1 , wherein the liquid crystal compound comprises
3. A liquid crystal display, comprising:
an upper substrate;
a lower substrate opposed to the upper substrate; and
a liquid crystal layer disposed between the upper substrate and the lower substrate, wherein the liquid crystal layer comprises the liquid crystal compound as claimed in claim 1 .
4. A photochromic material, comprising:
a substrate; and
a micro-cell liquid crystal layer coated on the substrate, wherein the micro-cell liquid crystal layer comprises the liquid crystal compound as claimed in claim 1 .
5. A liquid crystal compound of Formula: