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6291034 Naphthyl organic compounds  
Liquid crystal compounds of formula (I) are described, where formula (I) is given as R1 --A--(X)m --(B)n --R2 where A is selected from naphthyl, fluorinated naphthyl, brominated naphthyl, B is...
6277451 Liquid crystal materials and devices  
Materials of formula (I): [G]g (SiO1/2)x are described where G is R3 SiR1 R2 (O)k ; R1, R2, R3 are independently a C1-16 alkyl which may be partly or fully halogenated, H and formula (IA), wherein...
6267910 Antiferroelectric liquid crystal composition  
An antiferroelectric liquid crystal composition having a chiral smectic CA * phase composed by blending liquid crystal composition-constituting compounds having the same direction of inclination...
RE37270 Liquid crystal phase  
Liquid crystal phases containing components of the formulae I and III ##STR1##have an acceptable combination of threshold steepness, viewing angle and temperature dependence at a low threshold...
6251301 Ferroelectric liquid crystal devices  
Ferroelectric liquid crystal devices having two spaced cell walls each bearing electrode structures and treated on at least one facing surface with an alignment layer, and a layer of a smectic...
6248410 Electro-optical liquid-crystal display  
The invention relates to an electro-optical liquid-crystal display having a realignment layer for realigning the liquid crystals, where the field thereof has a significant component parallel to...
6248259 Optically active monomer, liquid crystal polymer, and optical element  
To obtain a monomer having a large torsion force, to obtain a liquid crystal polymer which is excellent in a film-forming property, can easily control a helical pitch of a cholesteric phase, can...
6245256 Chiral swallow-tailed liquid crystals and its fabrication method  
Novel chiral swallow-tailed liquid crystals synthesized from chiral material comprised of alkyl(s)-2-{6-[4-(4'-alkyloxyphenyl)benzoyloxy]-2-naphthyl}p ropionates having a rigid core, a chiral...
6235355 Dioxane derivatives, liquid-crystal compositions containing the same, and liquid-crystal display devices made by using the same  
The present invention provides liquid crystalline compounds having a high voltage holding ratio and a remarkably high Δε value, electric and chemical stability, and having good compatibility with...
6231785 Benzene derivative and its production method  
A method of producing a difluorobenzyl ether derivative (6) ##STR1## ##STR2##in which a benzene derivative (1) is reacted with a base to form carbanion which is in turn reacted with a...
6231934 Alkenyl compound, liquid crystal composition, and liquid crystal display device  
The liquid crystalline compound is expressed by the general formula (1) Ra-A1 -Z1 -A2 -Z2 -A3 -Z3 -A4 -Rb (1)wherein Ra represents an alkenyl group having 2 to 20 carbon atoms or an alkyl group...
6231786 Fluorinated azoles, and their use in liquid-crystalline mixtures  
In the fluorinated azoles of the formula (I) R1 (--A1)a --T--(A2 --)b (M--A3 --)c R2 (I)the symbols and indices have -the following meanings: T is undirected and is 4-fluorothiazole-2,5-diyl,...
6225479 Optically active bis-dioxane derivatives  
A compound of formula ##STR1##in which R1 and R2 each independently represent and alkyl or alkenyl group in which one or more hydrogen atoms is optionaly substituted by fluorine, chlorine, or...
6217792 Chiral dopants  
The invention relates to chiral dopants of the formula (I): R1 --X1 --MG1 --G--MG2 --X2 --R2. The invention also relates to liquid crystalline materials comprising at least one chiral dopant of...
6210603 Fluorine-substituted benzene derivative, liquid-crystal composition, and liquid-crystal display element  
Liquid crystalline compounds are provided which have an extremely high voltage holding ratio, altered only slightly by change of temperature, and which have a low threshold voltage and a high Δn....
6210761 Liquid crystal compounds exhibiting negative anisotropy of permittivity, liquid crystal compositions, and liquid crystal displays  
The present invention is to provide liquid crystalline compounds which exhibit a negative dielectric anisotropy value, have an extremely high voltage holding ratio and a low threshold voltage, are...
6210760 Supertwist liquid crystal display  
Supertwist liquid crystal displays having very short switching times are obtained if the nematic liquid crystal mixture contains at least one component chosen from group A consisting of compounds...
6207076 Fluorovinyl derivative compound, liquid crystal composition, and liquid crystal display device  
There are herein disclosed a fluorovinyl derivative compound represented by the general formula (1) and having characteristics of a liquid crystal, a liquid crystal composition, and a liquid...
6203724 Crosslinked cyclohexane derivatives, and liquid-crystalline medium  
The invention relates to cyclohexane derivatives of the formula I ##STR1##in which R, R1, R2, R3, A, A1, A2, A3, Z, Z1, Z2, Z3, B, B1, X, p, m, n, r and s are as defined above.
6197217 3,3'-difluorobiphenyl derivatives, liquid crystal compositions, and liquid crystal display elements  
Liquid crystalline compounds which exhibit a negative dielectric anisotropy value, have an extremely high voltage holding ratio and a low threshold voltage, are small in their dependency on...
6190576 Liquid crystal compounds, liquid crystal compostions containing the compounds, and liquid crystal display devices made by using the compositions  
The invention is to provide liquid crystalline compounds which have a low viscosity, high negative dielectric anisotropy, high resistivity, and high voltage holding ratio, and are stable against...
6187223 Polyhaloalkyl ether derivatives as well as liquid crystal compositions and liquid crystal display elements containing them  
A compound expressed by the general formula (1): ##STR1##wherein R1 denotes an alkyl group having from 1 to 20 carbon atoms in which one or more methylene groups in said group may be replaced by...
6184322 Metal-containing side chain liquid crystal polymers  
A group fo liquid crystalline compounds defined by formulas (1) and (2)including polymers, monomers, oligomers and intermediates for their preparation. Also included are symmetric and...
6180024 Liquid crystal polymers  
Methods, based on the Wittig-Horner reaction, are provided for the synthesis of compounds of formula (I) where m is from 5-150, X and Y are independently selected from: CN, H, OH, COCH3, CO2 H,...
6180027 Bisalkenyl derivatives, liquid crystalline compounds and liquid crystal compositions  
Liquid crystalline compounds expressed by the following formula (1), liquid crystal compositions thereof obtained by combination with specified liquid crystal compounds, and liquid crystal display...
6177154 Alkoxybenzene derivative, liquid-crystal composition, and liquid-crystal display element  
Disclosed are (a) liquid crystalline compounds which are essential as component of the liquid crystal compositions, are excellent in miscibility with other liquid crystal compositions,...
6174456 Liquid crystal compounds having substituted alkyl groups, liquid crystal composition and liquid crystal display element  
The present invention provides liquid crystalline compounds having compatibility with the other liquid crystal materials and excellent stability, and having low viscosity and high transition...
6174457 Compound having alkadienyl group as side chain, and liquid crystal composition using same  
A compound represented by the general formula (1) ##STR1##wherein R1 is an alkadienyl group having 4 to 10 carbon atoms in which a hydrogen atom may be substituted by a fluorine atom or the like;...
6174459 Difluorophenyl derivative compound, liquid crystal composition and liquid crystal display device  
A difluorophenyl derivative compound having characteristics of a liquid crystal represented by the following general formula (1), a liquid crystal composition and a liquid crystal display device...
6174458 Tetracyclic compound having lateral halogen substituent and liquid crystal composition comprising the same  
A tetracyclic compound expressed by the following general formula (1) ##STR1##wherein H1 to H12 represent hydrogen atom at least one of which is replaced by a halogen atom, when either H6 or H8 is...
6171519 Ferroelectric liquid crystal mixture  
A ferroelectric liquid crystal mixture having a negative value of Δe and allowing a high speed response and a low voltage driving, as well as a liquid crystal display devise using the crystal...
6172720 Low viscosity liquid crystal material  
A liquid crystal material for a display device includes a first chiral nematic liquid crystal component and a second component that exhibits no liquid crystalline phase at any temperature. The...
6171664 Tolan derivatives, and liquid-crystalline medium  
The invention relates to tolan derivatives of the formula I ##STR1##in which R1, R2, A, Z, L1, L2, L3, L4, L5, L6, Q, m and n are as defined herein.
6168728 Acetylene derivatives, and liquid crystal composition and liquid crystal display device each comprising the same  
The present invention provides new liquid crystalline compounds having a high optical anisotropy value and excellent compatibility with the other liquid crystals, and liquid crystal composition...
6168838 Fluorinated phenantrene derivatives for liquid crystal mixtures  
Fluorinated phenanthrene derivatives and their use in liquid-crystalline mixturesFluorinated phenanthrene derivatives of the formula (I) ##STR1##in whichG is --CHF--CH2 -- or --CFCH--,E1, E2, E3,...
6159561 1,3-difluoronapthalene derivatives for liquid crystal mixtures  
1,3-Difluoronaphthalene derivatives of the formula (I) R1 (--A1 --M1)a (--A2 --M2)b --B(--M3 --A3)c (--M4 --A4)d --R2 (I)in which B is ##STR1## and R1 (--A1 --M1)a (--A2 --M2) and (--M3 --A3)(--M4...
6159392 5,7-difluoro-1,2,3,4-tetrahydronaphthalene derivatives and their use thereof in liquid crystal mixtures  
5,7-Difluoro-1,2,3,4-tetrahydronaphthalene derivatives of the formula (I) R1 (-A1 -M1)a (-A2 -M2)b -B(-M3 -A3)c (-M4 -A4)d -R2 (I)in which B isand ##STR1## R1 (-A1 -M1)a (-A2 -M2) and (-M3 -A3)c...
6159393 Benzene derivatives and liquid-crystalline medium  
A liquid-crystalline medium based on a mixture of polar compounds of positive dielectric anisotropy, characterized in that it contains one or more compounds of the general formula I ##STR1## in...
6149838 Conjugated nitrile derivative, liquid crystal composition, and liquid crystal display elements  
Liquid crystalline compounds having a wide temperature range of liquid crystal phase, a high dielectric anisotropy, and a high optical anisotropy; and liquid crystal compositions and display...
6146718 Liquid crystalline compound having a negative dielectric anisotropy value, liquid crystal composition containing the liquid crystalline compound, and liquid crystal display element produced utilizing the liquid crystal composition  
The present invention provides a liquid crystal compound having a negative dielectric constant anisotropy value of a large absolute value, a controlled optically anisotropy value, a high...
6146719 Liquid-crystalline compounds, and liquid-crystalline medium  
A liquid-crystalline medium based on a mixture of polar compounds of positive dielectric anisotropy, including one or more compounds of the general formula I: ##STR1## in which, R is H, an alkyl...
6146547 2-substituted-alkyl ether and liquid crystal composition  
A 2-substituted-alkyl ether having an optically active group and being useful as a component of ferroelectric liquid crystal compositions, and a liquid crystal composition containing the same are...
6143198 Liquid crystalline compounds having exo-methylene site and liquid crystal compositions comprising the same  
A liquid crystalline compound represented by the general formula (1) ##STR1## wherein R1 represents an alkyl or alkoxy group having 1 to 10 carbon atoms, a cyano group, a halogen atom, or an alkyl...
6139772 Liquid crystal composition, cured product, and manufacturing method thereof  
A radiation polymerizable liquid crystal composition capable of producing various types of cured products possessing optical anisotropy with varying physical characteristics suitable is disclosed....
6139924 Chiral liquid crystal compounds having a fluorinated terminal portion  
Novel liquid crystal compounds are provided which exhibit less temperature dependent switching properties, for the reliable and consistent operation of liquid crystal devices. The liquid crystal...
6129958 Chiral smectic liquid crystal mixture containing 1,2-difluoronaphthalenes  
A chiral smectic liquid crystal mixture, especially useful for operation in the τVmin -mode, comprises a substituted 1,2-difluornaphthaline derivatives of the formula (I), R1 (--A1 --M1)a (--A2...
6124005 Fluoro-substituted alkyl ether compounds, liquid crystal compositions and liquid crystal display devices  
Liquid crystalline compounds which have excellent compatibility with other liquid crystal materials, especially at low temperatures, high voltage holding ratio, low threshold voltage, their small...
6120859 Polymerisable, optically active dioxolane diesters  
Polymerisable optically active compounds have the general formula: ##STR1## where: W1 denotes a polymerisable residue, S1 denotes a spacer unit, Y1 denotes a single bond, or one of the groups...
6117501 Nematic liquid crystal composition and liquid crystal display using the same  
A liquid crystal composition obtained by mixing a phenylalkyl dioxaborinane derivative, an isothiocyanate derivative, a tolan derivative and a pyrimidine-phenyl derivative in an appropriate ratio,...
6117361 Liquid crystal compound having fluorine-substituted 1,4-phenylene moiety, liquid crystal composition and liquid crystal display element  
A compound represented by the following general formula (1) is provided. This has broader temperature range of nematic phase, lower viscosity and higher miscibility with other liquid crystal...