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6500503 Cyclohexane derivatives, liquid crystal compositions comprising the same and liquid crystal display devices  
Liquid crystalline compounds are disclosed which have large dielectric anisotropy and relatively low viscosity, and which are represented by formula (1) wherein R 1 represents hydrogen or C 1...
6495067 Liquid crystal compound, liquid crystal mixture or composition, electrolyte comprising the same, electrochemical cell and photo-electrochemical cell containing the electrolyte  
A liquid crystal compound, preferably a molten iodine salt, an electrolyte comprising the same, and a photo-electrochemical cell are disclosed. The electrolyte is little volatile and excellent in...
6491989 Fluorinated naphthalene derivatives and their use in liquid crystal mixtures  
Fluorinated naphthalene derivatives of the formula (I) R 1 (—A 1 —M 1 ) a (—A 2 —M 2 ) b —B—(—M 3 —A 3 ) c —(M 4 —A 4 ) d —R 2 (I) where B is having the meaning and R 1...
6485797 5-Arylindane derivatives and ferroelectric liquid crystal mixture containing same  
A ferroelectric liquid crystal mixture, especially useful for operation in the τV min −mode, comprises a 5-Arylindane derivative of the formula (I), wherein Y is CH, CF or N and R 1 (—A 1...
6485799 Aniline derivatives, liquid-crystal composition containing the same, and liquid-crystal display element  
A aniline derivative represented by general formula (1) wherein R and R′ represent independently each other alkyl with 1 to 10 carbon, alkoxyalkyl with 1 to 10 carbon, or hydrogen; x...
6482479 Active matrix displays having high contrast values  
An active matrix display comprises a chiral smectic liquid crystal mixture which has the phase sequence I—N*—SmC*, a spontaneous polarization in the operating temperature range of <40 nC/cm...
6475595 Fluorocyclohexene derivatives, and liquid-crystalline medium  
Fluorocyclohexene derivatives of formula I R 1 —(A 1 —Z 1 ) n —A—(Z 2 —A 2 ) m —Z 3 —B—(Z 4 —A 3 ) p —R 2 I, in which n, m, p, R 1 , R 2, Z 1 , Z 2 , Z 3 , Z 4 , A 1 , A 2 ,...
6465060 Tetrahydrothiophene derivatives, and their use in liquid-crystalline mixtures  
Tetrahydrothiophene derivatives of the formula (I) R 1 —X—(A 1 —M 1 ) a —(A 2 —M 2 ) b —A 3 —Y—T—Z—R 2 (I) where the symbols and indices have the following meanings, for...
6465059 Liquid-crystalline medium  
The invention relates to a liquid-crystalline medium one or more compounds of the general formula IA and one or more compounds of the formula IB R, R*, R**, z, L and Y are defined herein.
6458433 Difluorophenyl derivatives, liquid-crystal compounds, and liquid-crystal composition  
Disclosed are liquid crystalline compounds which (i) are characterized in that the compounds have a wide temperature range in which the compounds exhibit a liquid crystal phase, are low in...
6444278 2,6-di-tert-butylphenols  
The present invention relates to 2,6-di-tert-butylphenols of the formula I in which R, A 1 A 2 , Z 1 , Z 2 m and n are as defined herein, and their use as stabilizers or antioxidants.
6444279 Liquid crystal propene or propenyl nitrile derivatives  
Acetylene derivatives of the formula I in which R, A 1 , A 2 , Z 1 , Z 2 , Z 3 , L 1 , L 2 , L 3 , Y, m and n are as defined herein are suitable as components of liquid-crystalline media.
6440506 Supertwisted nematic liquid crystal displays  
The invention relates to supertwist liquid-crystal displays (STN-LCDs) having short switching times and good steepnesses and angle dependencies, and to the novel nematic liquid-crystal mixtures...
6437123 Triazine compounds and their use  
A compound of the present invention is a triazine compound of the general formula: Ar, Ar′ and Ar″ are aromatic moieties which are conjugated to the triazine core and are the same or...
6436489 Fluorine-containing benzothiazoles, and their use in liquid-crystalline mixtures  
Benzothiazoles of the formula (I) are used as components of liquid-crystal mixtures where the symbols and indices preferably have the following meanings: X 1 and X 2 , independently of one...
6436490 Monostable ferroelectric liquid crystal display apparatus  
A monostable ferroelectric liquid crystal display in which a stable monostable mode is realized to achieve sufficient analog gradation and contrast. A pair of substrates, processed with uniaxial...
6416826 Liquid crystal display element  
A liquid crystal display element includes a cholesteric phase liquid crystal component and a space holding member held within a pair of substrates, wherein at least one of which is transparent. The...
6413593 Liquid crystal composition and liquid crystal shutter  
A liquid crystal composition includes a host material comprising (a) two or more phenylpyrimidinyl compounds of general formula (I), wherein X 1 and X 2 are independently selected from the group...
6403171 TN and HTN liquid-crystal display  
TN and HTN liquid-crystal displays having very short response times and good steepness values and angle dependencies, are obtained using nematic liquid-crystal mixtures which comprise compounds of...
6403172 Benzothiophenes, and their use in liquid-crystalline mixtures  
Benzothiophene derivatives of the formula (I) are used as components of liquid-crystal mixtures where the symbols and indices have the following meanings: X 1 and X 2 , independently of one...
6384027 Phthalocyanine analogs  
Disclosed are compounds of formula V wherein M is selected from: a metal atom; a metal compound; 2H whereby one H is bonded to each of the two nitrogen atoms depicted as being bonded to M...
6376030 Nematic liquid-crystal composition, and liquid-crystal display using same  
Nematic liquid-crystal compositions of negative dielectric anisotropy comprising compounds of the formula I are useful in plasma-addressed liquid-crystal displays.
6366330 Cholesteric liquid crystal display that prevents image sticking  
A liquid crystal material for a display device includes a liquid crystal material comprising first chiral nematic liquid crystal component and a second component that exhibits no liquid crystalline...
6348244 Liquid-crystal compounds having large negative value of permittivity anisotropy, liquid-crystal composition, and liquid-crystal display element  
An object of the present invention is to provide novel liquid crystalline compounds having a negative and extremely large dielectric anisotropy value and a small optical anisotropy value together,...
6342279 Electro-optical liquid-crystal  
The invention relates to an electrooptical liquid-crystal display having a realignment layer for realigning the liquid crystals, where the field thereof has a significant component parallel to the...
6337034 Vinylene compounds and liquid-crystal composition  
Liquid crystalline compounds which have a wide temperature range of liquid crystal phase, low viscosity, and improved threshold voltage; liquid crystal compositions; and liquid crystal display...
6333082 Liquid crystalline (E,E)-butadiene compounds and mixtures and devices containing such compounds  
Liquid crystalline compounds useful in super twisted nematic liquid crystal displays are described and have the formula: ##STR1## wherein n is 1-5; m is 0-5; p is 0, 1 or 2; q is 0, 1...
6333080 Liquid-crystal alkenyltolan derivative, liquid-crystal composition, and liquid-crystal display element  
A liquid crystalline alkenyltolan derivative expressed by the general formula C t H 2t -1 --G--(CH 2 ) m --A 1 --B 1 --(A 2 --B 2 ) n --(A 3 --B 3 ) p --A 4 --X wherein A 1 , A 2 , A 3 ,...
6325949 Liquid crystal composition and liquid crystal display element  
The present invention provides a liquid crystal composition comprising a component A being at least one compound selected from the group of compounds represented by Formulas (1-1) and (1-2)...
6326065 Pyrimidine derivative, liquid crystal composition comprising the derivative, and liquid crystal display device fabricated by using the composition  
Liquid crystalline compounds having a comparatively high voltage holding ratio, high Δn and high Δε, and excellent miscibility with known liquid crystalline compounds at low temperatures. The...
6319570 Liquid crystalline compound, liquid crystal composition comprising the liquid crystal-line compound, and liquid crystal display device using the liquid crystal composition  
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...
6316066 Thermochromic polymerizable mesogenic composition  
The invention relates to a thermochromic polymerizable mesogenic composition essentially consisting of: a) a component MA comprising at least one achiral polymerizable mesogenic compound...
6309561 Liquid crystal compounds having a chiral fluorinated terminal portion  
Fluorine-containing, chiral liquid crystal compounds comprise (a) a chiral fluorochemical terminal portion comprising (i) at least one chiral center, which can optionally be heteroatom-substituted;...
6303194 Acetylene derivatives, and liquid-crystalline medium  
The invention relates to acetylene derivatives of the formula I ##STR1## in which n, m, R 1 , R 2 , X 1 , X 2 , X 3 , X 4 , Z 1 , Z 2 , A 1 , A 2 , Q, Y 1 and Y 2 are as defined below, wherein...
6300454 Liquid-crystalline nematic organosiloxanes which can be crosslinked to form optically anisotropic polymer layers  
The invention relates to nematic organosiloxanes (F) having at least two mesogenic side groups, of which at most one has three nuclei and all the others have two nuclei, where the term nucleus is...
6291034 Naphthyl organic compounds  
Liquid crystal compounds of formula (I) are described, where formula (I) is given as R 1 --A--(X) m --(B) n --R 2 where A is selected from naphthyl, fluorinated naphthyl, brominated naphthyl, B...
6277451 Liquid crystal materials and devices  
Materials of formula (I): [G] g (SiO 1 /2) x are described where G is R 3 SiR 1 R 2 (O) k ; R 1 , R 2 , R 3 are independently a C 1 -16 alkyl which may be partly or fully halogenated, H and...
6267910 Antiferroelectric liquid crystal composition  
An antiferroelectric liquid crystal composition having a chiral smectic C A * 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...
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...
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 the...
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...
6231786 Fluorinated azoles, and their use in liquid-crystalline mixtures  
In the fluorinated azoles of the formula (I) R 1 (--A 1 ) a --T--(A 2 --) b (M--A 3 --) c R 2 (I) the symbols and indices have -the following meanings: T is undirected and is ...
6231934 Alkenyl compound, liquid crystal composition, and liquid crystal display device  
The liquid crystalline compound is expressed by the general formula (1) Ra-A 1 -Z 1 -A 2 -Z 2 -A 3 -Z 3 -A 4 -Rb (1) wherein Ra represents an alkenyl group having 2 to 20 carbon atoms or...
6225479 Optically active bis-dioxane derivatives  
A compound of formula ##STR1## in which R 1 and R 2 each independently represent and alkyl or alkenyl group in which one or more hydrogen atoms is optionaly substituted by fluorine, chlorine,...
6217792 Chiral dopants  
The invention relates to chiral dopants of the formula (I): R 1 --X 1 --MG 1 --G--MG 2 --X 2 --R 2 . The invention also relates to liquid crystalline materials comprising at least one chiral...
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...
Matches 201 - 250 out of 942 < 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 >