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5872301 Bifunctional precursors for the preparation of liquid crystals  
Bifunctional compounds of the formula (I), ##STR1## in which: ##STR2## are naphthalene-2,6-diyl or ##STR3## is naphthalene-2,6-diyl or ##STR4## U, X, Y and Z are --CH, --CF and --N, with the...
5868960 Mesomorphic compound, liquid crystal composition containing the compound, liquid crystal device using the composition, liquid crystal apparatus and display method  
A mesomorphic compound of the formula (I) according to Claim 1 characterized by having at least two ether groups between alkylene groups in a specific alkoxy perfluoroalkyl terminal group is...
5868961 Silacyclohexane compound, a method of preparing it and a liquid crystal composition containing it  
A silacyclohexane compound represented by the following general formula (I). ##STR1## In this formula, R denotes a linear-chain alkyl group with 1-10 carbon atoms, a branched-chain alkyl group...
5866036 High tilt ferroelectric liquid crystal compounds and compositions  
Chiral nonracemic molecules which are useful as high tilt, high polarization and/or high birefringence FLC materials or are useful as components of such FLC materials and which have the following...
5866035 Liquid crystal mixture and liquid crystal device comprising the same  
A liquid crystal mixture containing a compound of the formula (1) as an essential component, which has a large birefringence (Δn), an increased upper limit temperature of nematic phase and a...
5866037 Liquid crystal compositions and liquid crystal display elements containing same  
Liquid crystal compositions which can improve the low Δn (refractive index anisotropy) of conventional liquid crystal compositions containing a silacyclohexane compound and which retain a low...
5863457 Polymerizable liquid crystal composition and optically anisotropic film comprising the same  
The present invention provides a novel polymerizable liquid crystal composition which can be used as an optical material, display material or recording material. More particularly, the present...
5861109 Liquid crystal materials, mixtures and devices  
Liquid crystal compounds of formula I may be used by themselves or they may be mixed with other liquid crystal compounds to give useful liquid crystal mixtures which may then be used in liquid...
5858275 Chlorobenzene derivative and liquid crystal composition containing the same  
Chlorobenzene derivatives which have the following four-ring structure and are preferably usable for display devices of active matrix mode, and liquid crystal compositions comprising the...
5858271 Liquid crystal composition and liquid crystal display device  
Liquid crystal compositions are disclosed which satisfy various characteristics required of liquid crystal compositions used for TN-LCD or STN-LCD display mode, have a low viscosity to cope with...
5858270 Difluorooxymethane derivative and liquid crystal composition  
In order to provide novel compounds which are useful as liquid crystal materials for low voltages in several liquid crystal displays, have a large dielectric anisotropy, and are low in viscosity;...
5858272 Phenyldioxane derivatives, liquid crystal compositions, and liquid crystal display elements  
There is provided an electrically and chemically stable liquid crystalline compound which exhibits a significantly large value of De and a high voltage holding ratio. The compound is a...
5855812 Compounds and process for controlling cone tilt angle in mixtures of smectic liquid crystal compounds  
A process for controlling the cone tilt angle of a tilted smectic liquid crystal composition comprises the step of combining (a) at least one liquid crystal composition comprising at least one...
5853613 Chiral cyclohexyl compounds  
The present invention describes liquid crystal compounds which are suitable for use in liquid crystal devices including those which exploit the electroclinic effect.
5851424 Photo cross-linkable liquid crystalline 1,4-dioxane-2,3 diyl derivatives  
The present invention is concerned with photo cross-linkable liquid crystalline compounds of the general formula ##STR1## wherein A1 and A2 each represent a cross-linkable, mesogenic...
5851426 Twisted nematic liquid crystal composition containing a silacyclohexane compound  
This invention provides twisted nematic liquid crystal compositions obtained by adding a cyclohexane ring-containing optically active compound of the following general formula (1) to a mixture of...
5851425 Imidazothiazoles  
Compounds of the general formula ##STR1## have a pronounced tendency to form liquid crystalline S (smectic) phases. Thus, optically inactive compounds of the formula I also have a tilted smectic...
5851427 Photocross-linkable naphthyl derivatives  
Photocross-linkable naphthyl derivatives include compounds of the formula: ##STR1## wherein R1 and R2 each independently signify a cross-linkable group; S1 and S2 signify --(CY2)m -, --O(CY2)m -,...
5849216 Compounds for use in liquid-crystal mixtures  
Compounds of the formula (I) R1 --(A1)a (--M1)b --(--A2)c (--M2)d (--A3)e (--M3)f (--A4)g --H(I)in which the symbols and indices have the following meanings: R1 is B or a straight-chain or...
5849217 Optically active compound, liquid crystal composition containing the same, liquid crystal device using the same, liquid crystal apparatus and display method  
An optically active compound represented by the formula R1 --A1 --A2 --X1 --A3 --(CH2)p --L--A4 --R2, in which R1 is F, CN or straight chain, branched or cyclic alkyl and R2 is H, F, CH or...
5840208 Liquid crystal composition and liquid crystal display element  
A chiral nematic liquid crystal composition which has a broad d/P margin, particularly for corresponding to a large size of LCD panel, while satisfying various characteristics sought for STN...
5837160 Chiral CLCPs containing colored monomers  
The invention relates to cholesteric liquid-crystalline polymers containing at least one colored comonomer which absorbs light in the visible wavelength region. The colored comonomers can be...
5834064 Effect coatings whose perceived color depends on the viewing angle  
A process for preparing an effect coating having a perceived color which is dependent on the viewing angle, which comprises applying one or more non-curable cholesteric liquid-crystalline...
5830386 Optically active compound, liquid crystal composition, device, display apparatus and display method  
An optically active compound of the formula (I) according to claim 1 is suitable as a component for a liquid crystal composition providing improved response speed. The optically active compound of...
5827448 Ferroelectric liquid crystal device  
A ferroelectric liquid crystal device is described. The device comprises a pair of substrates, an electrode arrangement formed on the inside surface of the substrates, an orientation control...
5820785 Fluoroalkylethnyl- and difluoroalkylethynylbenzenes, and their use in liquid-crystal mixtures  
Disclosed are derivatives of fluoroalkylethynyl- and difluoroalkylethynylbenzenes of the formula (I) herein. These compounds exhibit useful properties as liquid crystal compounds and are useful in...
5820783 Chiral compounds  
Chiral compounds of the formula I ##STR1## where R1 is hydrogen or --Y--Z--Y1, R2 is ##STR2## and X is hydrogen, fluorine, chlorine, bromine, iodine, hydroxyl or OR1, where Y is a direct bond, CO...
5814141 Liquid crystalline cellulose (ether) ethers as interferentially effective chromophoric substances  
The invention relates to a liquid crystalline, photo cross-linkable main-chain polymer used as interferentially effective, chromophoric substance for colored paints, in which the main mesogenic...
5811028 Optically active dihydropyran derivative, and liquid crystal composition, liquid crystal device, and racemic mixture comprising the derivative  
A 2H-5,6-optically active dihydropyran derivative represented by the general formula (I) or (I'): ##STR1## wherein Rf represents a fluoroalkyl group having 1 or 2 carbon atoms; a liquid crystal...
5804097 Liquid-crystalline compounds  
Liquid-crystalline compounds of the formula I X(--Y--A--Y--M--Y--B)n I,where X is an aromatic or aliphatic ring system, n is an integer from 2 to 6, each Y, independently of the others, is a...
5800734 1-fluorocyclohexene-difluorophenyl derivatives  
A compound of the formula ##STR1## wherein R is C1 -C7 alkyl or C2 -C12 alkenyl; rings A and B each independently are 1,4-phenylene, trans-1,4-cyclohexylene or trans-1,3-dioxane-2,5-diyl; Z1 is a...
5800735 1, 3-dioxanes, and liquid-crystalline medium  
1,3-Dioxanes of the formula I ##STR1## in which R, X, L and ##STR2## are as defined below, are suitable as components of liquid-crystalline media.
5800733 Photo cross-linkable liquid crystal derivatives  
The present invention is concerned with photo cross-linkable liquid crystalline compounds in the formula ##STR1## wherein for example: A,B,C,D,E,F independently is pyridine-2,5-diyl,...
5800736 Smectic liquid crystal composition and liquid crystal device  
A liquid crystal composition is realized, which composition simultaneously exhibits a negatively large Δ.di-elect cons. value suitable to τ-Vmin, and SA phase within a sufficient temperature range...
5798058 Liquid crystal compounds, mixtures and devices  
Compounds of formula (I) which are suitable for use in liquid crystal devices including those devices which exploit the electroclinic effect. The compounds of formula (I) may also be used as...
5788880 Liquid-crystalline organosiloxanes containing chiral dianhydrohexitol derivatives  
The liquid-crystalline organosiloxanes which contain dianhydrohexitol derivatives as chiral groups can be used in optical elements, for decorative purposes and as polarizing colored filters, in...
5785890 Liquid crystal composition, liquid crystal device, and liquid crystal display apparatus using same  
A liquid crystal composition comprises at least three compounds represented by formulae (A), (B) and (C), respectively as in Claim 1. The compound of the formula (A) has an indan skeleton, the...
5783114 Liquid crystalline display  
The present invention is a display comprising a light-modulating composition comprising liquid crystalline pyrimidines or pyridazines preferably admixed with other liquid crystalline materials...
5779934 Fluorine-containing optically active compound, process for preparing the same and liquid crystal mixture and liquid crystal element comprising the same  
A fluorine-containing optically active compound represented by the formula (1): ##STR1## wherein R1 is a saturated or unsaturated C3 -C20 alkyl group or a saturated or unsaturated C3 -C20...
5779935 Ferroelectric liquid crystal mixture  
A ferroelectric liquid crystal mixture which does not lower the conventional transition temperature to the ferroelectric phase (60° C. or above), which maintains the Sa phase within a suitable...
5776363 Compounds having side chains with multiple methyl branches and their use in liquid-crystal mixtures  
Compounds of the formula (I) having side chains with multiple methyl branches R1 (-A1 -M1)a (-A2 -M2)b (-A3 -M3)c (-A4)-G(--C* H(CH3)--CH2)n --R2 (I)where * is a chiral carbon atom; A1, A2, A3, A4...
5776365 Carboxylate compounds, liquid crystal materials, liquid crystal compositions and liquid crystal elements  
There is provided a carboxylic acid compound represented by the following formulae (I) to (IV): ##STR1## a liquid crystal material consisting of the carboxylic acid ester compound, a liquid...
5776367 Alkenylcyclohexane derivatives, liquid crystal composition and liquid crystal display element  
A novel liquid crystalline compound having a low viscosity and a high elastic constant ratio and at the same time, a superior compatibility with other known liquid crystalline compounds, and a...
5772914 Chiral dopes  
Chiral benzene derivatives of formula I ##STR1## in which R1*, R2*, X1, X2, A1, A2, Z1, Z2, L1, L2, L3, m, n and k are as defined in claim 1, and their use as chiral dopes in liquid-crystalline...
5770108 Pyrimidine compound and liquid crystal composition and liquid crystal element using the same  
A novel pyrimidine compound represented by the following Formulas (1) and (2), a liquid crystal composition containing said compound and a liquid crystal element having excellent characteristics...
5762825 Liquid crystal mixture and liquid crystal device comprising the same  
A liquid crystal mixture containing (a) at least one compound of a compound of the formula (1): ##STR1## in which R is a C1 -C12 alkyl group, etc.; X1, X2, X3, X4, Y1, Y2, Y3 and Y4 represent,...
5759443 Cyclopentyl derivatives  
Objects of this invention are cyclopentyl compounds of the general formula ##STR1## wherein k signifies a whole number of 4 to 18; n signifies 0 or 1; Y1, Y2 signify a single bond, --O--, --COO--...
5755995 Guest host liquid crystal composition  
Described is a guest host liquid crystal composition comprising as a host liquid crystal a liquid crystal composition containing some of the compounds represented by the formulas (I) to (V) which...
5755994 Ester derivative, liquid crystal composition and liquid crystal display element  
A novel liquid crystalline compound having a large dielectric anisotropy value, a small change in the threshold voltage depending upon temperatures, and an improved solubility in other liquid...
5753139 High contrast distorted helix effect electro-optic devices and tight ferroelectric pitch ferroelectric pitch ferroelectric liquid crystal compositions useful therein  
Ferroelectric Liquid Crystals (FLCs) which exhibit a ferroelectric phase and a chiral nematic phase at temperatures above the ferroelectric phase are provided. The natural helix pitch of the FLC...