Patents for C09K 19 - Liquid crystal materials (21,026)
01/1999
01/07/1999EP0888414A1 Improved method of making thermotropic liquid crystalline polymers containing hydroquinone
01/07/1999EP0888328A1 Chiral compounds and their use as doping agents in liquid crystals
01/07/1999EP0888281A1 Reactive liquid crystal compounds
01/07/1999DE19828630A1 Polymer dispersed liquid crystal display unit
01/07/1999DE19828149A1 Super-twist liquid crystal display with very short switching time
01/06/1999CN1204066A Method for preparing ferroelectric liquid crystal device with multi-domain structure
01/05/1999US5856432 Polyimide film from pyromellitic dianhydride and a bis (4-aminophenoxy) aromatic compound as an alignment layer for liquid crystal displays
01/05/1999US5855971 Liquid crystalline optical film, compensating film for liquid crystal display comprising the liquid crystalline optical film, and liquid crystal display having the compensating film
01/05/1999US5855814 Liquid crystal compositions and liquid crystal display elements
01/05/1999US5855813 Liquid crystal material and liquid crystal display device
01/05/1999US5855812 Compounds and process for controlling cone tilt angle in mixtures of smectic liquid crystal compounds
12/1998
12/30/1998EP0887694A2 Liquid crystal display device and method of manufacturing it
12/30/1998EP0887399A1 Silicones having a low glass transition temperature
12/30/1998EP0887398A1 Mixture containing pigments with chiral liquid crystal structure and their use
12/30/1998EP0670872B1 Ferroelectric liquid crystal device
12/30/1998CN1041411C Use of carbonate for liquid crystal
12/29/1998US5854666 Liquid crystal display device having particular twist angle, .increment.n d, .increment.ε, and threshold voltage
12/29/1998US5853613 Chiral cyclohexyl compounds
12/29/1998US5853612 Compound for use in liquid crystal composition, liquid crystal composition comprising the same, and liquid crystal display device using the same
12/23/1998EP0885945A1 Method for broadening the cholesteric reflexion bands of photopolymerised cholesteric liquid crystals and optical elements made according to this method
12/23/1998EP0885876A1 Swallow-tail-shaped liquid crystal compound
12/23/1998EP0885875A1 Vinylene compounds and liquid-crystal composition
12/23/1998EP0885861A1 Liquid-crystal compounds bearing vinyl linkages and liquid-crystal composition
12/23/1998EP0885272A1 Liquid crystal composition and liquid crystal display element
12/23/1998EP0885271A1 Liquid crystal composition and liquid crystal display device
12/23/1998EP0885264A1 Method of producing pigments
12/22/1998US5851604 Interference pigments comprising molecules fixed in a cholesteric configuration, and use thereof
12/22/1998US5851427 Photocross-linkable naphthyl derivatives
12/22/1998US5851426 Twisted nematic liquid crystal composition containing a silacyclohexane compound
12/22/1998US5851425 Imidazothiazoles
12/22/1998US5851424 Photo cross-linkable liquid crystalline 1,4-dioxane-2,3 diyl derivatives
12/22/1998US5851422 Polymeric material for liquid crystal/polymer composite film, record display medium, and use thereof
12/19/1998CA2240817A1 Low glass temperature organosiloxanes
12/17/1998WO1998057223A1 Multi-domain liquid-crystal display device
12/16/1998EP0884309A1 Optically active compound, antiferroelectric liquid crystal composition containing the same, process for producing the same and process for producing optically active carboxylic acid
12/16/1998EP0884302A1 Carboxylic ester derivatives containing ether group and liquid-crystal composition containing the same
12/16/1998EP0884296A1 Fluoroalkenyl derivatives and liquid crystal compositions
12/16/1998EP0883618A1 Difluorophenyl pyrimidyl pyridine derivatives and the use thereof in liquid crystal mixtures
12/16/1998EP0657039B1 Paper white pdlc system
12/16/1998EP0649454B1 Benzene derivatives and liquid-crystal medium
12/16/1998CN1201814A Preparation of agent for orientation of polyimide for liquid crystal displayer
12/15/1998US5849217 Optically active compound, liquid crystal composition containing the same, liquid crystal device using the same, liquid crystal apparatus and display method
12/15/1998US5849216 Compounds for use in liquid-crystal mixtures
12/15/1998CA1340228C Dispersion of liquid crystal droplets in a photopolymerized matrix, and devices made therefrom
12/15/1998CA1340225C Liquid-crystalline polyorganosiloxanes containing (meth) acryloxy groups
12/10/1998WO1998055473A1 Polymerisable, optically active dioxolane diesters
12/10/1998WO1998055458A1 2-fluoro-3-(1-fluoro-alkyl)-pyridine-6-yl derivatives and the use thereof in liquid crystal mixtures
12/10/1998DE19823194A1 1,3-Dioxan derivatives with axial fluorine substitution
12/10/1998DE19723855A1 2-Fluor-3-(1-fluor-alkyl)-pyridin-6-yl-Derivate und ihre Verwendung in flüssigkristallinen Mischungen 2-fluoro-3- (1-fluoro-alkyl) -pyridin-6-yl derivatives and their use in liquid crystal mixtures
12/10/1998DE19723275A1 New 4-fluoro-cyclohexane derivatives
12/09/1998EP0882696A1 Alkenyl compounds bearing oxygenic linkages, liquid-crystal composition, and liquid-crystal display element
12/09/1998EP0882695A1 Benzyl ether derivatives, liquid crystal composition, and liquid crystal display
12/08/1998US5847798 Polymer stabilized black-white cholesteric reflective display
12/08/1998US5847149 Thiadiazole derivatives, process for their preparation, and their use as precursors for the production of liquid crystals
12/08/1998US5847075 Polymer and porous structure
12/08/1998US5847068 Cholesteric copolyisocyanates
12/08/1998US5846452 Liquid crystal optical storage medium with gray scale
12/08/1998US5846451 Crosslinking type liquid crystal polymer and oriented crosslinking film thereof
12/08/1998CA2138935C Polymerizable liquid-crystalline siloxanes
12/03/1998DE19722314A1 Liquid crystal medium based on a mixture of polar compounds
12/02/1998EP0881522A1 Liquid crystal display device
12/02/1998EP0881509A2 Polarizer, lighting device and liquid crystal display
12/02/1998EP0881221A1 Dioxane derivatives, liquid-crystal compositions containing the same, and liquid-crystal display devices made by using the same
12/02/1998EP0880570A1 Cholesteric flakes
12/02/1998CN1200815A Liquid crystal alignment film, method for mfg. same, liquid crystal display using the film and method, and method for mfg. for display
12/02/1998CN1200379A Optical alignment polymer and optical alignment composition having same
12/01/1998US5844653 Liquid crystal mixture
12/01/1998US5844651 Liquid crystal optical device
12/01/1998US5844643 Liquid crystal display device with at least 7° C. liquid crystal to isotropic phase transition temperature difference and method of making
12/01/1998US5843539 Coextrusion of liquid crystal polymers and thermoplastic polymers to form a container
12/01/1998US5843333 Metallo organo liquid crystals in a polymer matrix
12/01/1998US5843332 Polymer dispersion-type liquid crystal optical device and method for producing the same
11/1998
11/26/1998WO1998053028A1 Low viscosity liquid crystal material
11/26/1998WO1998053027A1 Lyotropic mesomorphic media and optical compensating film using the same
11/26/1998WO1998052905A1 New polymerisable liquid crystalline compounds
11/25/1998EP0879869A1 Anti-ferroelectric liquid crystal composition
11/25/1998CN1199737A Sterol polyfluoro aromatic ester and its synthesis and use
11/25/1998CN1040915C Ferroelectric liquid crystal display device with high contrast and high brightness
11/24/1998US5841503 High molecular liquid crystal device and method of manufacturing the same
11/24/1998US5841497 Liquid crystal device and liquid crystal apparatus
11/24/1998US5841493 Macroporous open-pore, crosslinked polymer with molecular imprints having cavities whose steric and functional configuration is specifically adapted to capturing particular entities
11/24/1998US5840209 Optically active compound, liquid crystal compositions containing the optically active compound, and liquid crystal display device
11/24/1998US5840208 Liquid crystal composition and liquid crystal display element
11/19/1998WO1998052097A1 Chip card with bistable display
11/19/1998DE19719822A1 Chipkarte mit bistabiler Anzeige Chip card with bistable display
11/18/1998EP0878460A1 Racemic compound and anti-ferroelectric liquid crystal composition containing the compound
11/18/1998EP0877776A1 Process for producing pigment particles
11/17/1998US5838410 Optical modulation element
11/17/1998US5837163 Liquid crystal compounds
11/17/1998US5837162 Cyclic ethers for liquid crystal displays
11/17/1998US5837161 Liquid crystal composition and liquid crystal display device
11/17/1998US5837160 Cholesteric liquid-crystalline polymers containing as colored comonomer derivatives of anthanthrone, anthraquinone, dioxazine, phthalocyanine, quinacridone, diketopyrrolopyrrol, perylene, perinone, azomethine, azo, aminostilbenecarboxylic
11/12/1998DE19819444A1 New dioxolane derivatives
11/12/1998DE19818461A1 New oligo-1,3-dioxan derivatives
11/11/1998EP0703955B1 Liquid crystal materials, mixtures and devices
11/10/1998US5835174 Droplets and particles containing liquid crystal and films and apparatus containing the same
11/10/1998US5834072 Consisting of noncurable cholesteric liquid crystalline polymer alone or mixed with noncurable nematic liquid crystalline polymer
11/10/1998US5834064 Effect coatings whose perceived color depends on the viewing angle
11/10/1998US5833880 Polymerizable liquid-crystalline compounds
11/10/1998US5833879 Liquid crystalline alkynyltolan compound, liquid crystal composition and liquid crystal display element