Liquid crystal and liquid crystal display
AssigneesTokyo Institute of Technology, Lintec Corporation
InventorsJunji Watanabe, Tatsuya Izumi
Life of this patent
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Abstract
A novel liquid crystal comprising a first liquid compound having bent structures and a second liquid crystal compound. A liquid crystal phase formed by the first liquid crystal compound exhibits ferroelectricity or antiferroelectricity while a liquid crystal phase formed by the second liquid crystal compound exhibits neither ferroelectricity nor antiferroelectricity. A smectic liquid crystal phase formed by the first liquid crystal compound has a tilted structure while a smectic liquid crystal phase formed by the second liquid crystal compound has no tilted structure. The first liquid crystal compound is represented by the following chemical formula (m=16) and the second liquid crystal compound is represented by the following chemical formula (m=4).
Claims32
A liquid crystal comprising a first liquid crystal compound having bent structures and another second liquid crystal compound,
- wherein a liquid crystal phase formed by the first liquid crystal compound exhibits ferroelectricity or antiferroelectricity,
- wherein a liquid crystal phase formed by the second liquid crystal compound exhibits neither ferroelectricity nor antiferroelectricity, and
- wherein the second liquid crystal compound has a bent structure.
A liquid crystal comprising a first liquid crystal compound having bent structures and another second liquid crystal compound,
- wherein the first liquid crystal compound is represented by the following formula (m=16) and the second liquid crystal compound is represented by the following formula 1 (m=4),
A liquid crystal comprising a first liquid crystal compound having bent structures and another second liquid crystal compound,
- wherein the first liquid crystal compound and the second liquid crystal compound are represented by the following general formula,
- A-M1-X1-B-X2-M2-A
- wherein A represents terminal chains, M1 and M2 are mesogenic groups, X1 and X2 are bonding groups, and B is a bent chain,
- wherein a liquid crystal phase formed by the second liquid crystal compound exhibits neither ferroelectricity nor antiferroelectricity.
A liquid crystal comprising a first liquid crystal compound having bent structures and another second liquid crystal compound,
- wherein the first liquid crystal compound and the second liquid crystal compound are represented by the following general formula,
- A1-M1-X-B-Y-M2-A2
- wherein A1 and A2 are terminal chains, M1 and M2 are mesogenic groups, X and Y are bonding groups of —COO— or —OCO— independently of each other, and B is an aromatic compound group,
- wherein a liquid crystal phase formed by the second liquid crystal compound exhibits neither ferroelectricity nor antiferroelectricity.
A liquid crystal display using liquid crystals comprising a first liquid crystal compound having bent structures and another second liquid crystal compound,
- wherein a liquid crystal phase formed by the first liquid crystal compound exhibits ferroelectricity or antiferroelectricity,
- wherein the liquid crystal phase formed by the second liquid crystal compound exhibits neither ferroelectricity nor antiferroelectricity, and
- wherein the second liquid crystal compound has a bent structure.
A liquid crystal display using liquid crystals comprising a first liquid crystal compound having bent structures and another second liquid crystal compound,
- wherein the first liquid crystal compound is represented by the formula 5 (m=16) and the second liquid crystal compound is represented by the formula 5 (m=4),
A liquid crystal display using liquid crystals comprising a first liquid crystal compound having bent structures and another second liquid crystal compound,
- wherein the first liquid crystal compound and the second liquid crystal compound are represented by the following general formula,
- A-M1-X1-B-X2-M2-A
- wherein A represents terminal chains, M1 and M2 are mesogenic groups, X1 and X2 are bonding groups, and B is bent chain
- wherein the liquid crystal phase formed by the second liquid crystal compound exhibits neither ferroelectricity nor antiferroelectricity.
A liquid crystal display using liquid crystals comprising a first liquid crystal compound having bent structures and another second liquid crystal compound,
- wherein the first liquid crystal compound and the second liquid crystal compound are represented by the general formula,
- A-M1-X-B-Y-M2-A2
- wherein A1 and A2 are terminal chains, M1 and M2 are mesogenic groups, X and Y are bonding groups of —COO— or —OCO— independently of each other, and B is an aromatic compound group,
- wherein a liquid crystal phase formed by the second liquid crystal compound exhibits neither ferroelectricity nor antiferroelectricity.
A liquid crystal comprising a first liquid crystal compound and a second liquid crystal compound,
- wherein the first liquid crystal compound is represented by one of the two following general formulas, and the second liquid crystal compound is represented by another of the following general formulas,
- A-M1-X1-B-X2-M2-A
- wherein A represents terminal chains, M1 and M2 are mesogenic groups, X1 and X2 are bonding groups, and B is a bent chain,
- A1-M1-X-B-Y-M2-A2
- wherein A1 and A2 are terminal chains, M1 and M2 are mesogenic groups, X and Y are bonding groups, and B is an aromatic compound group,
- wherein a liquid crystal phase formed by the second liquid crystal compound exhibits neither ferroelectricity nor antiferroelectricity.
A liquid crystal display using liquid crystals comprising a first liquid crystal compound and another second liquid crystal compound,
- wherein the first liquid crystal compound is represented by one of the two following general formulas, and the second liquid crystal compound is represented by another of the following general formulas,
- A-M1-X1-B-X2-M2-A
- wherein A represents terminal chains, M1 and M2 are mesogenic groups, X1 and X2 are bonding groups, and B is a bent chain,
- A1-M1-X-B-Y-M2-A2
- wherein A1 and A2 are terminal chains, M1 and M2 are mesogenic groups, X and Y are bonding groups, and B is an aromatic compound group,
- wherein a liquid crystal phase formed by the second liquid crystal compound exhibits neither ferroelectricity nor antiferroelectricity.
Dependencies are inferred from the claim text.