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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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7378135 |
Polymerizable liquid crystal composition and optically anisotropic thin film
In order to obtain such a liquid crystal thin film having optical anisotropy that suffers less change in optical characteristics thereof under heating to 200° C., the following polymerizable...
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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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7341675 |
Liquid crystalline polymer composition
Liquid crystalline polymers containing specified ratios of repeat units derived from hydroquinone, 2,6-naphthalenedicarboxylic acid, 4-hydroxybenzoic acid and optionally terephthalic acid have...
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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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7314654 |
Optically anisotropic element comprising discotic compound
An optically anisotropic element comprises a discotic compound. The discotic compound has an oriented discotic plane. The discotic compound has a molecular structure including a discotic core and 3...
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7297379 |
Polyfluorinated fused aromatics and their use in liquid-crystal mixtures
A compound of the formula (I) is described
where R 1 and R 2 are defined in the specification and p=q=r= 0 or 1 with p+q+r≠ 0 . The compound of formula (I) has high dielectric anisotropy,...
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7297378 |
Fluorinated fused aromatics and their use in liquid-crystal mixtures
Compounds of the formula (I)
in which R 1 , R 2 , p, q, G and X are each as defined in the description,
use of compounds of the formula (I) in liquid-crystal mixtures, liquid-crystal...
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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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7291366 |
Cyclopenta[b]naphthalene derivatives
The present invention relates to cyclopenta[b]naphthalene derivatives of the general formula (I) in which Z, A, n, R, L 5 and L 8 as (II) and (III) are as defined in Claim 1, to the use thereof...
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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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7273641 |
Optically anisotropic element comprising discotic compound
An optically anisotropic element comprises a discotic compound. The discotic compound has an oriented discotic plane. The discotic compound has a molecular structure represented by the formula (I)...
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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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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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7232592 |
Nematic liquid crystal composition containing indane compound
The present invention provides a nematic liquid crystal composition using a 4,6-difluoroindane-based compound that has a low lower limit temperature (T →N ) of the liquid crystal phase, high...
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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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7201950 |
Optical compensatory sheet, elliptical polarizing plates and liquid-crystal display
A novel optical compensatory sheet is disclosed. The sheet comprises an optically anisotropic layer comprising at least one compound selected from the group represented by Formula (I):
...
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7199167 |
Light emitting polymer
There is provided a process for forming a light emitting polymer comprising photopolymerization of a reactive mesogen having an endgroup which is susceptible to photopolymerization e.g. by a...
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7198827 |
Nematic liquid crystal composition and liquid crystal display device using the same
A nematic liquid crystal composition comprising compounds of the general formulas (I-1) to (I-5) each having naphthalene-2,6-diyl, decahydronaphthalene-2,6-diyl and...
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7182885 |
Fluorinated indenes and 1,7-dihydroindacenes of negative dielectric anisotropy
Fluorinated indenes and 1,7-dihydroindacenes of the general formulae (I) and (II) of negative dielectric anisotropy (Δε<0)
in which
T, A, R, L, X, Y, U, W, Z, n, m, p and q are as defined...
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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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7153548 |
Compound, retardation plate and method for forming optically anisotropic layer
A retardation plate having a high film strength and having an optical property is provided by using a biaxial liquid crystal compound, in which the direction having a minimum refractive index of...
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7145047 |
Naphthalene derivative and liquid crystal composition comprising the same
Disclosed in a novel liquid-crystalline compound which is a naphthalene derivative useful as an electro-optical liquid crystal display material, a liquid crystal composition containing such...
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7144608 |
Color correcting polarizer
A color-correcting polarizer is provided comprising a polarizer layer and at least one discotic film layer. The discotic film layer is optically transparent within the range of visible wavelength....
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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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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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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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7118786 |
Optical compensatory sheet comprising transparent support and optically anisotropic layer
An optical compensatory sheet comprises a transparent support and an optically anisotropic layer. The optically anisotropic layer is formed from liquid crystal molecules. Three principal refractive...
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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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7105106 |
Liquid crystalline polymers, processes for their manufacture, and articles thereof
Thermotropic liquid crystalline polymers are produced by the reaction of a polyester made from an aromatic dicarboxylic acid and a diol, one or more hydroxycarboxylic acids, a stoichiometric excess...
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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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7094359 |
Micro powder and method for producing the same
An object of the present invention is to provide a micro powder capable of producing a thin film with precision thickness. This object is achieved by a micro powder having an average particle size...
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7087272 |
Fluorinated fluorene derivatives
The invention relates to fluorinated fluorene derivatives of negative DC anisotropy, of the formula I
R 1 —(—A 1 —Z 1 —) k1...
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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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7078078 |
Optical compensatory sheet comprising transparent support and optically anisotropic layer
An optical compensatory sheet comprises a transparent support and an optically anisotropic layer. The optically anisotropic layer is formed from liquid crystal molecules and monomers having four or...
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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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7026021 |
Fluorinated heterocycles and their use in liquid-crystal mixtures
Compounds of the general formula (I)
where:
R 1 , R 2 are each independently a) H b) -M 1 -A 1 -R 5 c) a straight-chain or branched alkyl radical having from 1 to 16 carbon atoms or a...
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7022259 |
Liquid crystal compounds, preparation thereof, and composition containing the same
A liquid crystal compound with high helical twisting power, a method for preparing the same, and a liquid crystal composition containing the same. The liquid crystal compounds include cyclic group...
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7018685 |
Fluorinated aromatic compounds and the use of the same in liquid crystal mixtures
The invention relates to fluorinated aromatics of the formula (I)
where
X is CH 2 , C═O, CF 2 , O or S, Y is H or F, with the proviso that Y has to be F when X is CH 2 ,
and where the...
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7014890 |
Fluorinated naphthalenes, liquid-crystal mixtures comprising them, and liquid-crystal displays
Compounds of the formula (I)
in which the parameters are as defined herein, are suitable for use in liquid-crystal media and liquid-crystal displays which contain these media.
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7014791 |
Liquid crystalline polymer composition
Liquid crystalline polymer having repeat units derived from 4,4′-biphenol, terephthalic acid, 2,6-naphthalenedicarboxylic acid, and 4-hydroxybenzoic acid in a limited compositional range have...
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7001648 |
Glassy chiral-nematic liquid crystals and optical devices containing same
A glassy chiral-nematic liquid crystal composition includes a compound having the structural formula
wherein each N represents a nematic group connected to the 1, 3, 5-benzenetricarbonyl...
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6984712 |
Liquid-crystal polyester resin
The present invention provides a liquid-crystalline polyester resin which comprises monomer units derived from 2-hydroxy-3-naphthoic acid and/or 2-hydroxynaphthalene-3,6-dicarboxylic acid in an...
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