Abstract: The invention relates to a liquid-crystalline medium based on a mixture of polar compounds having negative dielectric anisotropy (??), which contains at least one compound selected from the group of compounds of the formula I, IIA and IIB and at least one compound of the formula I* in which R0, R1, R2, R1*, X1, X2, A1, A1*, A2*, Z1, Z2*, L1*, L2*n p, q, v, m and m* are as defined in claim 1, and to the use thereof for an active-matrix display based on the ECB, VA, PS-VA, FFS, PALC or IPS effect.

Abstract: A liquid crystal compound and a liquid crystal medium are described. The liquid crystal compound is stable to heat and light and has a large dielectric anisotropy and a large optical anisotropy. The liquid crystal medium has a wide temperature range of liquid crystal phase, a large optical anisotropy and a large dielectric anisotropy, and exhibits an optically isotropic liquid crystal phase. The liquid crystal compound has 4 or 5 benzene rings, one of which is a chlorofluorobenzene ring. The liquid crystal medium is characterized in containing the liquid crystal compound and a chiral dopant and exhibiting an optically isotropic liquid crystal phase.

Abstract: A polymer compound comprising a repeating unit of the following formula (1) and at least one of a repeating unit of the following formula (2) and a repeating unit of the following formula (70). (wherein, Q represents Ar1 and Ar2 represent an arylene group, divalent heterocyclic group or divalent aromatic amine group. Ar3 represents an aryl group, monovalent heterocyclic group or monovalent aromatic amine group. Z represents —CR1?CR2— or —C?C—. R1 and R2 represent a hydrogen atom, alkyl group or the like. m represents 0 or 1.) (wherein, a ring A and a ring B represent an aromatic hydrocarbon ring, and at least one of the ring A and the ring B is an aromatic hydrocarbon ring having two or more benzene rings condensed. Rw and Rx represent an alkyl group, alkoxy group or the like.) (wherein, a ring C and a ring D represent an aromatic ring. E represents O or S.).

Abstract: Disclosed is a composition for forming a board including a benzoxazine-based compound and a liquid crystal polymer or oligomer, and a board fabricated using the same.

Abstract: The present invention relates to benzochromene derivatives of the formula I where the various parameters have the meaning indicated in the text, and to liquid-crystal media which comprise these compounds, and to the use of the media in electro-optical displays, in particular in VAN-LCDs, and to the use of the compounds and physiologically acceptable derivatives thereof as therapeutic active ingredients.

Abstract: The present invention provides a liquid crystalline polyester composition comprising a terphenyl and a liquid crystalline polyester, wherein the terphenyl substantially consists of p-terphenyl, and the p-terphenyl is contained in the composition in the amount of 0.3 to 15 parts by weight on the basis of 100 parts by weight of the liquid crystalline polyester. The liquid crystalline polyester composition has high flowability and low anisotropy, which can also suppress generation of gases when molded.

Abstract: A photosensitive monomer of formula. “L1”, “L2”, “L3”, “L4”, “L5”, “L6” are selected from hydrogen, fluorine, chlorine, cyano, alkyl, alkylcarbonyl, alkoxycarbonyl, and alkylcarbonyloxy having 1 to 7 carbon atoms, in which one or more hydrogen atoms may be substituted by fluorine or chlorine. “R1”, “R2”, “R3” and “R4” are selected from hydrogen, fluorine, chlorine, cyano, thiocyanato, pentafluoro sulfanyl, nitrite, straight-chained alkyl/branched alkyl, and a “Z-Sp-P” group. At least one of “R1”, “R2”, “R3” and “R4” is “Z-Sp-P” group. “Z” is selected from oxygen, sulfur, methyoxy, carbonyl, caroboxyl, carbamoyl, methylthio, ethenylcarbonyl, carbonylethenyl, and a single bond. “Sp” is selected from straight-chained alkyl or branched alkyl and a single bond. “P” comprises a polymerizable group.

Abstract: Liquid Crystal Molecules Comprising Hydroazulene Structures Compounds of formula (I); R1i-A1i-(Z2i-A2i)m-(Z3i-A3i)n-(Z4i-A4i)o-R2i (i) wherein at least one of the divalent groups Ai is derived from at least partially hydrogenated azulene, R1i and R2i being hydrogen, an optionally substituted alkyl or alkylene residue, R2i also standing for —CN, —N?C?S, —F, —Cl, —SF5, —CF3, —CHF2, CH2F—O—CF3, —O—CHF2, —O—CH2F, —O—CF2—CF2H, or —O—C2F5, A1i, A2i, A3i and A4i being partially or completely hydrogenated 2,6-azulene, trans-1,4-cyclohexylene, 1,4-cyclohexenylene, 1,4-phenylene, 2-fluoro-1,4-phenylene, 3-fluoro-14-phenylene, 2,3- and 2,6-difluoro-1,4-phenylene, and 3,5-difluoro-1,4-phenylene, pyrimidine-2,5-diyl, and 1,4-dioxane-2,5-diyl, Z1i, Z2i, Z3i and Z4i being a single bond, —CH2—CH2—, —CF2—CF2—, an ester bond —CO—O—, trans and —CF2—O—, m, n and 0 being independently 0, 1, or 2, liquid crystal media comprising these compounds and liquid crystal displays made with mixtures comprising the novel compounds.

Abstract: A composition comprising a polymerizable compound of the formula (1) and a rod-shaped polymerizable liquid crystal compound: P2-E2-X2-B2-A2-(G2)t-Y-(G1)s-A1-B1-X1-E1-P1??(1) (in the formula (1), Y represents a di-valent group, s and t represent each independently an integer of 0 or 1, G1 and G2 when s and t are 1 represent each independently —CR1R2—, R1 and R2 represent each independently an alkyl group having 1 to 4 carbon atoms, halogen atom or hydrogen atom, A1 and A2 represent each independently a di-valent cyclic hydrocarbon group, di-valent heterocyclic group, methylenephenylene group, oxyphenylene group or thiophenylene group, B1 and B2 represent each independently a di-valent group, X1 and X2 represent each independently a di-valent group, E1 and E2 represent each independently an alkylene group having 2 to 25 carbon atoms, and P1 and P2 represent a hydrogen atom or polymerizable group, at least one of P1 and P2 being a polymerizable group.).

Abstract: The present invention provides a vertical alignment film having a polymerizable liquid crystal compound having negative dielectric constant anisotropy, where the polymerizable liquid crystal compound is vertically aligned against the surface of the substrate, and then the polymerizable liquid crystal compound is fixed to form the vertical alignment film.

Abstract: Disclosed are a liquid-crystalline medium of negative dielectric anisotropy based on a mixture of polar compounds, which contains at least one compound of formula IA and at least one compound of formulae IB, IC and/or ID and the use thereof for an active-matrix display, in particular based on the ECB, PALC, FFS or IPS effect.

Abstract: A liquid crystal composition includes about 1 to about 40% by weight of an alkoxyl naphthalene-base compound, about 5 to about 30% by weight of a dialkoxyl naphthalene-base compound, and about 5 to about 80% by weight of a low viscosity compound.

Abstract: A coating liquid for forming a polarizing film comprising a lyotropic liquid crystal compound (A) exhibiting light absorption characteristics in a visible light region having a wavelength 400 nm or longer, a lyotropic liquid crystal compound (B) exhibiting no or low light absorption characteristics in the visible light region having a wavelength 400 nm or longer and a solvent dissolving the lyotropic liquid crystal compound (A) and the lyotropic liquid crystal compound (B).

Abstract: A system having a ferroelectric liquid host material and a small amount of polymer additive is provided. In an embodiment, the polymer additive improves the physical characteristics of the system. In an embodiment, the system can be used in FLC applications.

Abstract: The present invention relates to liquid-crystalline mixtures and to novel compounds therefor, and to the use thereof in nematic liquid-crystal displays having positive dielectric anisotropy, such as, for example, STN or IPS displays, which are characterised in that they comprise one or more compounds of the formula (I) in which R1, A1, A2, Z1, Z2, n are as defined in claim (1).

Abstract: The invention relates to compounds represented by Formula (1): wherein Ra is alkyl or the like; Rb is hydrogen, alkyl or the like; A is 1,4-cyclohexylene, 1,4-phenylene or the like; Z is a single bond, alkylene or the like; Y is a single bond, alkylene or the like; and m and n are each an integer of approximately 0 to approximately 5.

Abstract: Disclosed is a composition for forming a board. The composition includes a maleimide-based compound including at least three maleimide groups and a liquid crystalline polymer or oligomer. A prepreg and a board are each fabricated using the composition.

Abstract: This disclosure relates to a polymer containing a first comonomer repeat unit and a second comonomer repeat unit. The first comonomer repeat unit includes a cyclopentadithiophene moiety. The second comonomer repeat unit includes a thienothiophene moiety, a thienothiophene tetraoxide moiety, a dithienothiophene moiety, a dithienothiophene dioxide moiety, a dithienothiophene tetraoxide moiety, or a tetrahydroisoindole moiety. The polymer can be used as a photoactive material in a photovoltaic cell. This disclosure also relates to such photovoltaic cells, as well as modules containing such photovoltaic cells.

Abstract: The invention relates to chiral reactive mesogen (RM) mixtures, polymer films obtained thereof, and the use of the mixtures and polymer films in optical, electrooptical or electronic components or devices, in decorative, security or cosmetic applications, especially for use in broadband reflective polarizers.

Abstract: A purpose of the present invention is to obtain a hollow extruded article by easy blow molding or extrusion molding to give a draw down resistance and a uniform wall thickness of the article without damaging low gas permeability which is a characteristic property of a liquid-crystalline polymer. A resin composition for extrusion molding which is prepared by melting and kneading 99-70 wt. % of wholly aromatic polyester amide liquid crystal resin (A) having a melting point of 270-370° C. and a melt viscosity at 1000/sec. shear rate of 20-60 Pa·s at Temperature T1 which is higher than 20° C. from said melting point, and containing (I) 1-15 mole % of 6-hydroxy-2-naphthoic acid residue, (II) 40-70 mole % of 4-hydroxybenzoic acid residue, (III) 5-28.5 mole % of aromatic diol residue, (IV) 1-20 mole % of 4-aminophenol residue, and (V) 6-29.5 mole % of aromatic dicarboxylic acid residue; and 1-30 wt. % of epoxy modified polyolefin type resin (B), and has a melt viscosity at 1000/sec.

Abstract: The present invention provides a nematic liquid crystal composition suitable for a bistable nematic liquid crystal display. A bistable nematic liquid crystal display having a wide nematic phase temperature range and operating temperature range can be obtained by using a nematic liquid crystal composition comprising at least 20% by weight of a specific liquid crystal compound (A) having a polar group and 5 to 50% by weight of a specific liquid crystal compound (B) not having a polar group, along with comprising, in the compound (B), at least 3% by weight of a specific liquid crystal compound having a alkenyl group.

Abstract: The invention relates to chiral compounds, methods of their preparation, and to their use in optical, electrooptical, electronic, semiconducting or luminescent components or devices, and in decorative, security, cosmetic or diagnostic applications.

Abstract: A polymerizable liquid crystal compound of formula (1). The compound has high optical (refractive index) anisotropy (?n), exhibits a liquid crystal phase at room temperature (having a broad liquid crystal phase temperature range) without crystallization, has high solubility in cyclohexanone, methyl ethyl ketone or like organic solvents, exhibits excellent coating properties and orientation properties, and, after polymerization, has high transparency. wherein R1 and R2 each represent hydrogen, a methyl group or halogen; rings A to C each represent a benzene ring, a naphthalene ring, etc.; at least one of rings A to C is a fused ring; X, Y, and Z each represent a C1 to C6 alkyl group, etc.; L1, L2, and L3 each represent —COO—, —OCO—, —O(CH2)j— (j=1 to 8), etc.; n is 0 or 1, and a to c are numbers such that the polymerizable liquid crystal compound may have at least one of X, Y, and Z.

Abstract: The invention relates to chiral compounds, methods of their preparation, and to their use in optical, electrooptical, electronic, semiconducting or luminescent components or devices, and in decorative, security, cosmetic or diagnostic applications.

Abstract: The compound of the present invention is represented by the formula (1). In the formula (1), R1 and R2 are hydrogen, fluorine, chlorine, methyl or ethyl; X1 and X2 are hydrogen, fluorine, methyl or trifluoromethyl; Z1 and Z2 are a single bond, —COO—, —OCO—, —CH?CH—COO—, —OCO—CH?CH—, —CH2CH2—COO—, —OCO—CH2CH2—, —CH2O—, —CONH—, —(CH2)4—, —CH2CH2— or —C?C—; Z3 and Z4 are a single bond or —O—; A1 and A2 are 1,4-cyclohexylene, 1,4-phenylene, 1,3-phenylene, pyridin-2,5-diyl, pyrimidin-2,5-diyl, naphthalen-2,6-diyl or tetrahydronaphtlane-2,6-diyl; and Y1 and Y2 are alkylene having from 2 to 20 carbon atoms.

Abstract: The invention is to provide a liquid crystal composition that satisfies at least one characteristic among the characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of a nematic phase, a small viscosity, a large optical anisotropy, a negatively large dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light, a high stability to heat and so forth.

Abstract: The present invention discloses a liquid crystal composition having a first class compound including a fluorine-containing compound, and a second class compound including a neutral liquid crystal compound, where each terminal group of the neutral crystal compound includes an alkyl group, an alkoxy group, or an alkenyl group. If the neutral liquid crystal compound includes an alkenyl group at the terminal group, the liquid crystal composition includes less than 7 wt % of the neutral crystal compound including the alkenyl group. The present invention also discloses a liquid crystal display including the aforementioned liquid crystal composition.

Abstract: Disclosed are a liquid-crystalline medium of negative dielectric anisotropy based on a mixture of polar compounds, which contains at least one compound of formula IA and at least one compound of formulae IB, IC and/or ID and the use thereof for an active-matrix display, in particular based on the ECB, PALC, FFS or IPS effect.

Abstract: A disclosed liquid crystal display device includes a liquid crystal composition contained in a cell having a liquid crystal alignment film. The liquid crystal alignment film has a lamellar structure and includes at least one type of a triphenylene compound (I) represented by general formula (1): In general formula (1), L represents —O— or —S—; R1, R2, R3, R4, and R5 represent the same or different hydrocarbon radicals with 4 or more carbon atoms; R6 represents a divalent hydrocarbon radical with 4 or more carbon atoms; and R7 represents —SiR8R9R10 or —P(?O)(OH)2 where R8, R9, and R10 each individually represents —Cl, —OH, —OCH3, or —OC2H5.

Abstract: A liquid crystal compound is provided that has stability to heat and an ultraviolet ray, a small viscosity, a suitable refractive index anisotropy, a suitable dielectric anisotropy, a nematic phase within a wide temperature range and favorable compatibility with other liquid crystal compounds, and a liquid crystal composition is also provided that has a particularly small viscosity. The liquid crystal compound is a compound represented by formula (1): wherein in formula (1), R1 is hydrogen or alkyl having 1 to 5 carbons; one of X1 and X2 is hydrogen, and the other thereof is fluorine; and R2 is hydrogen or methyl.

Abstract: The present invention relates to cyclobutane and spiro[3.3]heptane compounds, to a process for the preparation thereof, to the use thereof as components in liquid-crystalline media, and to electro-optical display elements which contain these liquid-crystalline media.

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.

Abstract: The invention relates 1,2,3,6,7,8-hexahydro-s-indacene derivatives and 6,7-dihydro-5H-indeno[5,6-d]-1,3-dioxole derivatives, and to the use thereof as component(s) in liquid-crystalline media. In addition, the present invention relates to liquid-crystal and electro-optical display elements which contain the liquid-crystalline media according to the invention.

Abstract: A polymerizable liquid crystal composition is provided that can contains a mixture of polymerizable compounds containing a compound represented by the formula (1-1), a compound represented by the formula (2), a compound represented by the formula (3-1) and a compound represented by the formula (4), and a amine silane coupling agent. The composition can form a polymerizable liquid crystal layer exhibiting a uniform homeotropic alignment by coating the composition on a supporting substrate, independently from the kind of the supporting substrate without a special alignment film. Examples of each of the components are shown below, in which ring T represents triptycen-1,4-diyl.

Abstract: The present invention provides a birefringent film that hardly generates cracks even when the film is exposed under a high-temperature and high-humidity environment for a long period of time. The birefringent film of the present invention is a film containing, as a major component, a lyotropic liquid crystalline polycyclic compound containing an acenaphtho[1,2-b]quinoxaline derivative unit in a molecular structure and having a molecular weight of 500 or higher. The birefringent film of the present invention preferably has a refractive index ellipsoid showing a relationship of nx?nz>ny, and more preferably has an in-plane birefringence of 0.01 or higher at the wavelength of 590 nm.

Abstract: A polymerizable liquid crystal composition is provided that can exhibit a uniform homogeneous alignment by coating the composition on a supporting substrate having been subjected to an alignment treatment. The polymerizable liquid crystal composition contains a mixture of polymerizable compounds containing a compound selected from a group of compounds represented by the formula (1-1) as a component A and a compound selected from a group of compounds represented by the formula (2-1) as a component B as essential components, and optionally containing a compound selected from a group of compounds represented by the formulae (3-1) to (3-3) as a component C and/or a compound selected from a group of compounds represented by the formula (4-1) as a component D, and contains at least one nonionic surfactant as a component E. Examples of each of the components are shown below, in which T represents triptycen-1,4-diyl.

Abstract: A composition, including a liquid crystal polymer or oligomer having a terminal hydroxyl group, and a cross-linking agent including a bismaleimide compound, an epoxy resin or a combination thereof, wherein the liquid crystal polymer or oligomer is represented by Formula 1: Z1-(R1)m—(R2)n-Z2??(1), wherein R1 is represented by Formula 2: —X1—Ar1—Y1—??(2), wherein X1 and Y1 are each independently selected from the group consisting of O, CO and NR?, in which R? is independently selected from the group consisting of a hydrogen atom, a substituted or unsubstituted C1-C20 alkyl group, and a substituted or unsubstituted C6-C30 aryl group, and Ar1 includes at least one divalent aromatic or alicyclic organic group selected from the group consisting of Formula 3:

Abstract: Disclosed are fluorostilbene compounds of formula I, liquid-crystal media which comprise these compounds, the use of the media in electro-optical displays, in particular in VAN LCDs, and a process for the preparation of these compounds.

Abstract: The present invention relates to liquid-crystal (LIQUID CRYSTALLINE) media comprising polymerizable compounds, in particular for use in LIQUID CRYSTALLINE displays of the PS (polymer stabilized) or PSA (polymer sustained alignment) type, and to PS(A) displays containing LIQUID CRYSTALLINE media of this type.

Abstract: A liquid crystal medium is described, having a wide temperature range of a liquid crystal phase, a large optical anisotropy and a large dielectric anisotropy, and exhibiting an optically isotropic liquid crystal phase. The liquid crystal medium features including a chiral dopant and a liquid crystal compound with chloronaphthalene ring and exhibiting an optically isotropic liquid crystal phase.

Abstract: A liquid-crystalline coating fluid comprises: a lyotropic liquid crystal compound; a vinyl alcohol-based polymer; and a solvent, wherein 0.05 to 1.5 weight parts of vinyl alcohol-based polymer is contained with respect to 100 weight parts of the lyotropic liquid-crystal compound.

Abstract: The invention provides a five-ring liquid crystal compound having a CF2O bonding group as a new compound having a general physical properties necessary for compounds, stability to heat, light and so forth, a wide temperature range of liquid crystal phases, a high clearing point, a good compatibility with other compounds, a large dielectric anisotropy and refractive index anisotropy, and an especially high clearing point and an especially large refractive index anisotropy, and provides a liquid crystal composition and a liquid crystal display device.

Abstract: The liquid crystal composition of the present invention contains a compound represented by the following Formula (1) and a liquid crystal. In Formula (1), at least one among R1 to R7 is a liquid crystalline substituent, and those among R1 to R7 that are not a liquid crystalline substituent each independently represent a hydrogen atom or a substituent. X and Y each independently represent an alkyl group, a halogen atom, an alkoxy group, or an alkylthio group. Z represents an alkyl group having 3 or more carbon atoms, an acyl group, or an aryl group. A represents an oxygen atom, a sulfur atom, or a nitrogen atom. n represents 0 or 1. The liquid crystal device, reflection display material, and light modulating material of the invention contain the liquid crystal composition.

Abstract: A liquid crystal medium is described, which has a wide temperature range of a liquid crystal phase, a large optical anisotropy and a large dielectric anisotropy and exhibits an optically isotropic liquid crystal phase. The liquid crystal medium is characterized in including a chiral dopant and a liquid crystal compound with a chlorophenyl ring and exhibiting an optically isotropic liquid crystal phase.

Abstract: A liquid crystal composition is disclosed, which includes a liquid crystal material having a negative dielectric constant anisotropy and at least two different kinds of reactive monomers. A proportion The amount of the at least two different kinds of the reactive monomers in the total weight of the liquid crystal composition is ranges from 0.05% to 10% by weight. Additionally, a liquid crystal display using the liquid crystal composition as well as methods and uses thereof are further provided.

Abstract: A thermosetting composition including an organic solvent, a liquid crystalline thermoset oligomer, and either a crosslinking agent or an epoxy resin or both is disclosed. A printed circuit board which includes the thermosetting composition is also disclosed. The printed circuit board is produced by impregnating the thermosetting composition into a reinforcing material.

Abstract: A nematic liquid crystal composition having a negative dielectric constant anisotropy, comprising one or more compounds selected from the compounds represented by (IA) and (IB) of 10-70% by mass, one or more compounds selected from the compounds represented by (IIA) to (IID) of 10-70% by mass, the total content of one or more compounds selected from the compounds represented by (IA) to (IID) being 35-80% by mass, and a compound represented by (III) of 20-65% by mass: wherein R1 to R14 each independently represents an alkyl group having 1 to 10 carbon atoms, etc.; Z1 to Z11 each independently represents a single bond, etc.; Z1 to Z6 and Z9 to Z11 each independently represents —CF2O—, etc.; l and m represent 0 or 1; rings A, B, C and D represent a trans-1,4-cyclohexylene group, etc.; and rings B, C and D represent a trans-1,4-cyclohexenylene group.

Abstract: A liquid crystalline coating solution which comprises: an azo compound represented by the following general formula (I); and a solvent to dissolve the azo compound: wherein Q1 is a phenyl group or a naphthyl group (these groups may have any substituent groups); Q2 is a pheylene group or a naphtylene group (these groups may have any substituent groups); m is an integer from 1 to 5; and M is a counter ion.

Abstract: The chroman compounds of the formula I according to the invention R1-(A1-Z1)a—W1—(Z2-A2)b-Z3—W2—(Z4-A3)n-R2 in which R1, A1, A2, A3, W1, W2, Z1, Z2, Z3, Z4, a, b and c have the meanings indicated in claim 1, have two moieties W1 and W2 derived from chroman. The compounds are suitable as components of anisotropic switching media, as used, for example, in liquid-crystal display devices.

Abstract: Disclosed are a liquid-crystalline medium of negative dielectric anisotropy based on a mixture of polar compounds, which contains at least one compound of formula IA and at least one compound of formulae IB, IC and/or ID and the use thereof for an active-matrix display, in particular based on the ECB, PALC, FFS or IPS effect.