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7381350 |
Fluorene derivatives and polymers thereof
The compound (1) or (2), a composition containing the compound and a polymer obtained by polymerizing the composition.
R 1 is fluorine, cyano, alkyl, and so forth; R 2 is hydrogen, alkyl, and...
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7361388 |
Liquid-crystalline compounds having a tetrahydropyran ring
The invention relates to liquid-crystalline compounds of formula (I), wherein R 11 , X 11 , Z 11 , Z 12 , Z 13 , L 11 , L 12 , L 13 , L 14 , L 15 and L 16 have the meanings as cited in Claim 1 ,...
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7361288 |
Components for high-frequency technology
The present invention relates to switchable components for high-frequency technology, in particular microwave technology, which use liquid-crystalline dielectrics, to the liquid-crystal materials,...
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7357964 |
Liquid-crystalline vinyl ketone derivatives and their polymers
Provided is a liquid-crystalline, polymerizable vinyl ketone compound of formula (1):
Preferably, R 1 is hydrogen, halogen, —CN, —CF 3 , —CF 2 H, —CFH 2 , —OCF 3 , —OCF 2 H, or...
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7351452 |
Liquid crystalline compounds containing a biphenyl core
A compound of formula (I)
or a dimer thereof; where R 1 and R 2 are independently selected from optionally substituted alkyl, optionally substitituted alkenyl, optionally substituted...
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7344761 |
Liquid-crystalline compounds
The invention relates to liquid-crystalline compounds of the formula (I), where R 11 , X 11 , L 11 , Y and W are as defined in claim 1, and to the use thereof in liquid-crystalline media, to...
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7335405 |
Nematic liquid crystal mixtures for use in bistable display devices
A method of using a liquid crystal composition in a bistable liquid crystal device having a weak zenithal anchoring comprising at least 40% by weight of compounds with strong molecular...
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7335404 |
Liquid crystal composition for use in bistable liquid crystal devices
The invention is directed to the use of a liquid crystal composition in a bistable liquid crystal device and especially in a single polariser reflective or transflective zenithal bistable nematic...
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7326447 |
Benzochromene derivatives
The present invention relates to benzochromene derivatives of the formula I
in which the various parameters are as defined in the text, and to liquid-crystal media which comprise these...
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7316830 |
Liquid-crystalline phenol esters
The invention relates to liquid-crystalline phenol esters of the formula I
in which
R, A 1 , Z 1 , m, L and Y are as defined in Claim 1 , to liquid-crystalline media comprising at least one...
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7314943 |
Pyran derivatives containing an exocyclic double bond
The invention relates to pyran derivatives of formula I
and processes and intermediates for their preparation and derivatisation, and the use thereof in liquid-crystalline media.
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7314653 |
Liquid-crystal medium and electro-optical display containing same
Disclosed are nematic liquid-crystal media which have an initial current density of 0.05 μA/cm 2 or less and a threshold voltage of 1.0 V or less and their use in liquid-crystal displays,...
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7314580 |
Compound, liquid-crystal composition and optical material
Disclosed is a liquid-crystal composition capable of providing a functional film that exhibits useful optical properties. The composition comprises a compound of the following formula (1) that...
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7300604 |
Tetrahydroxybenzene tetraester derivative and polymer thereof
The invention includes compounds represented by Formula (1):
wherein R 1 is an alkyl having 1 to 20 carbon atoms; A 1 and A 2 are a 1,4-cyclohexylene or 1,4-phenylene; X is a single bond,...
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7294369 |
Polymerisable cinnamates with lateral substitution
The invention relates to new polymerisable mesogenic or liquid crystalline compounds comprising a laterally substituted cinnamate group, to polymerisable mesogenic or liquid crystalline mixtures...
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7291727 |
Light-harvesting discotic liquid crystalline porphyrins and metal complexes
Novel discotic liquid crystalline porphyrins and discotic liquid crystalline metal complexes, methods for their preparation, and device fabrication are disclosed. Materials with partially...
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7282246 |
Fluorinated xanthenes and use thereof in liquid-crystal mixtures
Concerning the compound of the formula (I)
R 1 , R 3 are each independently, for example, H R 2 , R 4 are each independently, for example, H X 1 , X 2 are each independently H or F M 1 ...
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7279202 |
Liquid crystalline compound for vertical alignment and a liquid crystalline composition comprising the same
A vertical alignment liquid crystalline compound containing a laterally substituted aromatic cyclic moiety. The liquid crystalline compound has a wide temperature range of the nematic phase, a high...
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7270856 |
Cyclobutane derivatives
The invention relates to novel cyclobutane derivatives of the formula (I), in which R 1 , R 2 , A, Z, m, n and o have the meaning indicated in claim 1 , to the use thereof as components of...
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7258903 |
Fast switching liquid crystal compositions for use in bistable liquid crystal devices
The invention is directed to the use of a fast switching liquid crystal composition said composition comprising at least 30 weight % of a component (α) containing one or more compounds having a...
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7255900 |
Fluorinated heterocycles and their use in liquid-crystal mixtures
In the compound of the formula (I),
where:
R 1 , R 2 are each independently, for example, H or a straight-chain or branched alkyl radical p, q are each independently 0 or 1, i.e. at the value...
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7250198 |
Liquid-crystalline compounds
Liquid-crystalline compounds of the formula I
in which
R 1 , A 1 , A 2 , Z 1 , Z 2 , X, a, b, L 1 , L 2 and L 3 are as defined herein, and to liquid-crystalline media comprising at...
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7247355 |
Liquid crystal compound having chroman ring, liquid crystal composition comprising the compound and liquid crystal display device comprising the composition
The present invention relates to a compound having a chroman ring, which has good thermal and optical stability, adequate optical anisotropy, adequate dielectric anisotropy and superior...
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7244798 |
(Meth) acrylic compound having an oxetanyl group and liquid crystal film produced by using same
The present invention provides a novel compound which is suitable as the starting material of a side-chain type liquid crystalline polymeric substance having a reactive group which is excellent in...
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7232593 |
Aligned emissive polymer blend, film and device based thereon
The invention relates to aligned emissive polymer blended with at least one chromophore with rigid-rod-type or discotic asymmetric molecular structure; to film incorporating such polymer blends; to...
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7226644 |
Chroman derivative and liquid-crystal composition containing the compound
The present invention relates to a liquid crystal compound which has negative dielectric anisotropy and a large absolute value thereof; and a liquid crystal display element which contains the...
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7223450 |
Chiral compounds
The invention relates to chiral compounds of formula I wherein X 1 ,X 2 ,X 1 ,X 2 ,x 1 ,x 2 ,y 1 ,y 2 ,B,C,U 1 ,U 2 ,V 1 ,V 2 ,W 1 and W 2 have the meaning given in claim 1 , to liquid crystal...
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7195719 |
High polarization ferroelectric liquid crystal compositions
The invention relates to chiral nonracemic liquid crystal compounds having achiral tails comprising a perfluoroalkyl terminal portion which are useful as components in liquid crystal to impart high...
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7189440 |
Liquid-crystalline medium
The invention relates to a liquid-crystalline medium comprising at least one pyran compound of the formula I
and one or more compounds selected from the group consisting of the compounds C-1 to...
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7157124 |
Polymerizable compounds and their polymers
A compound represented by formula (1) or (2) and a polymer obtained by polymerizing the compound are provided:
wherein R a is one of the groups represented by Formulas (3-1) to (3-5); R b is...
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7138479 |
Aliphatic diol polycarbonates and their preparation
The disclosure provides high quality, low yellowness index copolycarbonates comprising structural units derived from at least one aliphatic diol, at least an aromatic dihydroxy compound and a...
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7128953 |
Optical film comprising support and polarizing layer
An optical film comprises a transparent support and a polarizing layer. The polarizing layer selectively transmits polarized light, and selectively reflects or scatters other polarized light. The...
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7125590 |
Liquid crystal film and liquid crystal display device equipped with same
Liquid crystal films with excellent heat resistance and mechanical strength are provided. A liquid crystal film is obtained by fixing an aligned liquid crystal material containing at least a side...
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7125589 |
Liquid crystal compound having hydrogen as a terminal group, composition comprising the compound, and liquid crystal display element comprising the composition
A compound represented by the following formula (1), a composition comprising the composition and an element comprising the composition:
Ra is alkyl having 1 to 15 carbons and so forth; A 1 , A...
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7125499 |
Liquid crystal polymer technology chemicals and applications
Liquid phase liquid crystal polymers (LCPs) are disclosed having a composition and structure that can be varied to provide desirable properties. The liquid phase LCPs have polyiminoborane,...
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7122228 |
Compound having negative Δε
The invention relates to indanes having negative Δε of the formula Ia or Ib
in which R, A, Z, X, Y, V, W, n and m are as defined in claim 1.
The compounds are particularly suitable for...
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7122227 |
Chiral photoisomerizable compounds
The invention relates to chiral photoisomerizable compounds of formula (I) wherein X 1 , X 2 , X 3 , X 4 , X 5 and X 6 have the meanings given in claim 1 , to liquid crystalline mixtures and...
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7105210 |
Liquid-crystalline medium
A liquid-crystalline medium based on a mixture of polar compounds of positive dielectric anisotropy, which contains one or more compounds of the formula I
and one or more compounds of the...
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7101595 |
Photo-curable fluorene derivative and composition containing the same
The present invention provides a compound represented by formula (1) defined in the specification. The invention further provides a liquid crystal composition comprising at least two compounds,...
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7097887 |
Liquid crystal compounds
The use of a compound of formula (I)
wherein R 1 is an alkyl or alkenyl group, either of which may be optionally interposed with one or more oxygen or sulphur atoms, R 2 is an alkyl or...
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7087273 |
Liquid crystalline oxetane compound, polymerizable liquid crystalline composition, method for producing liquid crystal film, optical film, and liquid crystal display
A novel liquid crystalline compound has the formula:
Z 1 -(CH 2 ) n -L 1 -P 1 -L 2 -P 2 -L 3 -P 3 -L 4 -(CH 2 ) m -Z 2 ...
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7083832 |
Partially fluorinated liquid crystal material
The invention provides LC compositions that exhibit V-shaped switching when aligned in an analog device configuration and exhibit bistability when aligned in a bookshelf-type device configuration....
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7081280 |
Liquid-crystalline medium
A liquid-crystalline medium containing a mixture of polar compounds of positive dielectric anisotropy. The mixture contains one or more compounds of formula I
in which: R is H, an alkyl or...
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7081279 |
Alkenyl compound having a negative Δε value, liquid crystal composition, and liquid crystal display device
Liquid crystalline compounds having a large negative Δε low viscosity, a large K 33 /K 11 value, a small Δε/Δ⊥ and mutually excellent solubility even at low temperature, compositions...
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7074464 |
Perfluoropropenyl-containing compound, liquid crystal composition and liquid crystal display element
A compound represented by the formula (1).
wherein Ra is alkyl having 1 to 10 carbon(s) and, in that alkyl, any of —CH 2 — may be replaced with —O—, —S—, —CO—, —CH═CH— or...
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7074462 |
Ester compounds and their use in liquid crystalline media
The invention relates to compounds of the formula I and to a liquid-crystalline medium based on a mixture of polar compounds of positive dielectric anisotropy, characterized in that it comprises...
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7070838 |
Liquid crystalline compound, liquid crystal composition and their polymers
The present invention provides a compound represented by formula (1) defined in the specification and a liquid crystal composition comprising the compound. The invention further provides a polymer...
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7067179 |
Fused ring compound
A novel compound represented by the general formula (I), and a nematic liquid crystal composition incorporating the same.
A compound represented by the general formula (I) can be produced...
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7052744 |
Liquid-crystalline mixtures
Nematic liquid-crystal mixtures comprising one or more compounds of the formula I
in which R 1 and R 2 are as defined herein, are suitable for use in TN and STN liquid-crystal displays.
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7052742 |
Five membered-ring compounds and utilization thereof in liquid crystal mixtures
Fluorinated five-membered ring compounds of the formula (I)
R 1 —X—(A 1 —M 1 ) a —(A 2 —M 2 ) b —A 3 —Y—E ...
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