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| Number | Title | Issue Date |
| 6861106 | Dichroic dye, composition thereof, and liquid crystal composition and liquid crystal display element containing the same Dichroic dyes, dichroic dye compositions, and liquid crystal composition and liquid crystal display element containing the dichroic dyes. The dichroic dye has increased solubility and stability. ... | 03/01/2005 |
| 6793986 | Polymerizable liquid crystals Disclosed are polymerizable liquid-crystalline compounds of the general formula (I) where A1 and A2 are identical or different and are each a crosslinkable group; the radicals X are identical or dif... | 09/21/2004 |
| 6699405 | Polymerizable liquid crystals Disclosed are polymerizable liquid-crystalline compounds of the general formula (I) ##STR1## where A1 and A2 are identical or different and are each a crosslinkable group; the radicals X are identical or different and are each a... | 03/02/2004 |
| 6685998 | Optical compensatory sheet comprising transparent support and optically anisotropic layer An optical compensatory sheet comprises a transparent support and an optically anisotropic layer. The optically anisotropic layer is formed from liquid crystal molecules. Three principal refractive indices of the optically anisotropic layer are different ... | 02/03/2004 |
| 6620339 | Polyamic acid composition, liquid crystal aligning film, and liquid crystal display element The present invention provides a polyimide alignment film having excellent electrical properties and excellent reliability for use in the field of electronic materials which comprises a polyimide resin produced from a polyamic acid composition comprising ... | 09/16/2003 |
| 6613246 | Polymerizable liquid crystal compound having amido bond between two cyclic groups A polymerizable liquid crystal compound is represented by the formula (I): in which each of Q1 and Q2 independently is a polymerizable group; each of L1 and L2 independently is a divalent linking group; each of Cy | 09/02/2003 |
| 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 taken to mean a six-membered ring or a bicyclic structure c... | 10/09/2001 |
| 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 liquid crystal material enclosed between the cell walls, exhib... | 06/26/2001 |
| 6010642 | Azine derivative, process for the preparation thereof, nematic liquid crystal composition and liquid crystal display system comprising same Disclosed is to provide an azine derivative as a novel liquid crystal compound, a novel process for the preparation of an asymmetrical azine in a high reaction yield with an extremely small amount of by-products such as symmetrical azines, a nematic liqui... | 01/04/2000 |
| 5866033 | Liquid crystal composition and liquid crystal display device A guest host mode liquid crystal composition comprising dichroic dyes and host liquid crystal, wherein said dichroic dyes are at least one member selected from each of the following groups (A), (B) and (C): Group (A) consisting of azo dichroic dyes of the foll... | 02/02/1999 |
| 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... | 12/15/1998 |
| 5846451 | Crosslinking type liquid crystal polymer and oriented crosslinking film thereof A crosslinking type liquid crystal polymer, an oriented crosslinking film thereof, and a method of producing the oriented crosslinking film are disclosed. The crosslinking type liquid crystal polymer comprises a liquid crystal polymer containing a polyfun... | 12/08/1998 |
| 5707544 | Chromophore-containing photo cross-linkable liquid crystals The present invention is concerned with chromophore-containing photo cross-linkable liquid crystalline compounds having the formula ##STR1## wherein A1 and A2 each represent a cross-linkable, mesogenic group; and A3 r... | 01/13/1998 |
| 5663308 | Organosilicon polymers, and dyes, exhibiting nonlinear optical response Organosilicon polymers, including crosslinked polymers and crosslinkable prepolymers, of cyclic polysiloxane, organic dyes, and, optionally, polyenes. The dyes include those with delocalized Pi electron systems linking electron donor groups and electron a... | 09/02/1997 |
| 5589235 | Nonlinear optical material and its method of manufacture A new nonlinear organic optical material having a high Second Harmonic Generation capability and a method of manufacturing the same is disclosed. Energy-beam sensitive monomer molecules having large molecular dipole-moments are sandwiched between two faci... | 12/31/1996 |
| 5589237 | Reversible display medium A reversible display medium comprising substrate 1 having thereon recording layer 2 containing a side chain type high polymeric liquid crystal capable of repeatedly and reversibly switching between a transparent state and a light-scattered state by the ac... | 12/31/1996 |
| 5538666 | Conducting polymeric side-chain liquid crystals and an orientation layer using the same Conducting polymeric side chain liquid crystals are prepared by incoporating liquid crystalline compounds in a main chain selected from the group consisting of acetylene derivatives and thiophene derivatives. The liquid crystal has conductivity and liquid... | 07/23/1996 |
| 5437817 | Liquid crystalline organopolysiloxanes and liquid crystal compositions Liquid crystalline organopolysiloxane is provided having the general formula: Ra (A)b (B)c SiO.sub.(4-a-b-c)/2 wherein R is independently selected from the group consisting of a hydrogen atom, hydrocarbon group having i to 4 ca... | 08/01/1995 |
| 5412079 | Liquid crystal monomer compound and polymer obtained therefrom Disclosed is a liquid crystal monomer compound represented by formula (1): ##STR1## wherein n is an integer of from 2 to 18, X is direct bond, --(C.dbd.O)--O--, --(C.dbd.O)--NH-- or --N.dbd.N--, R1 is hydrogen or a lower alkyl group, and R... | 05/02/1995 |
| 5395910 | Liquid-crystalline polyurethanes, compositions of said liquid-crystalline polyurethanes, and a device for optical data storage comprising a liquid-crystalline polyurethane The invention relates to a liquid-crystalline polyurethane having a side chain comprising a mesogenic group, giving a clear polyurethane which does not isomerize under the influence of light. Such liquid-crystalline polyurethanes are highly suited to be u... | 03/07/1995 |
| 5320776 | Antiferroelectric liquid crystal compound A novel antiferroelectric liquid crystal compound is disclosed which is represented by the following formula: ##STR1## wherein R1 and R2 are independently selected from C3 -C18 alkyl groups, respectively, R... | 06/14/1994 |
| 5314997 | Optically active azo compound, producing method thereof, and liquid crystal composition containing said compound An optically active azo compound is represented by the following general formula (I), ##STR1## where R is an alkyl group having from 1 to 20 carbon atoms, and R* is an optically active radical of an alkyl group or a halogen substituted alkyl gro... | 05/24/1994 |
| 5308537 | Mesogenic compounds Mesogenic compounds with a ω-CF3 -alkyl, ω-CF3 -alkenyl or ω-CF3 -alkinyl terminal group of formula I ##STR1## with the meaning of R, Z, Q, ##STR2## m, n and o being indicated in claim 1.... | 05/03/1994 |
| 5278295 | Pyrrole monomer A pyrrole polymer membrane having electrical conductivity and liquid crystal properties in the same matrix. The starting pyrrole monomer derivative is illustrated by the formula ##STR1## where R1 and R2 are selected so that at l... | 01/11/1994 |
| 5273793 | Nonlinear optical materials The present invention is directed to epoxy-based polymeric nonlinear optical materials in which a nonlinear optical active moiety or functionality forms the crosslink between polymer chains and a process for making the nonlinear optical (NLO) epoxy polyme... | 12/28/1993 |
| 5270406 | Advanced epoxy resin compositions containing mesogenic moieties Advanced epoxy resin compositions are prepared by reacting epoxy resins with active hydrogen-containing compounds which contain mesogenic moieties. Curable compositions containing these advanced epoxy resin compositions are useful in adhesives, coatings, ... | 12/14/1993 |
| 5266661 | Curable compositions containing mesogenic advanced resin compositions and curing agent therefore and cured products Curable compositions are disclosed which contain (I) an advanced resin composition prepared by reacting epoxy resins with active hydrogen-containing compounds which contain mesogenic moieties and (II) a suitable curing agent.... | 11/30/1993 |
| 5238602 | Liquid crystals Compounds of the formula ##STR1## wherein n stands for the number 0 or 1; the rings A1, A2 and A3 represent 1,4-phenylene, 2-fluoro-1,4-phenylene or trans-1,4-cyclohexylene or one of these rings also represents a ... | 08/24/1993 |
| 5209868 | Trifluoromethylcyclohexane derivatives Disclosed are trifluoromethylcyclohexane derivatives of the formula I ##STR1## wherein R is an alkyl or alkenyl radical having up to 18 C atoms which is unsubstituted or substituted by CN or by at least one halogen, and in which one or more non-adjac... | 05/11/1993 |
| 5198150 | Ferroelectric liquid crystal composition A ferroelectric liquid crystal composition is provided which includes at least one achiral compound represented by formula (I) ##STR1## wherein each of R1 and R2 is an alkyl group having 1 to 18 carbon atoms, at least one optica... | 03/30/1993 |
| 5190688 | Liquid crystalline mixture This invention relates to liquid crystalline mixtures with at least two liquid-crystalline compounds which are free of perfluoro alkylene groups and at least one partially fluorinated additive of formula I R1 --(CH2)m --(CF | 03/02/1993 |
| 5188815 | Thermochromic mixtures The invention relates to thermochromic liquid crystalline phases with at least two components, characterized in that at least one component is an optically active compound of the formula I ##STR1## wherein R1 and R2 are each ind... | 02/23/1993 |
| 5188760 | Liquid crystalline material and display cell containing said material A liquid crystalline material in the form of an anisotropic gel comprising a polymerized liquid crystalline material and a low-molecular weight liquid crystalline material, can be used in a display cell, said polymerized material forming a permanently ori... | 02/23/1993 |
| 5185097 | Polymeric liquid-crystalline compound, liquid-crystal composition containing it, and liquid-crystal drive Provided is a polymeric liquid-crystalline compound having in its repeating unit a moiety represented by the following formula (M) X1 --A--X2 --B (M) wherein A represents a bicyclic mesogen; B represents a fle... | 02/09/1993 |
| 5173546 | Nonlinear optical materials The present invention is directed to epoxy-based polymeric nonlinear optical materials in which a nonlinear optical active moiety or functionality forms the crosslink between polymer chains and a process for making the nonlinear optical (NLO) epoxy polyme... | 12/22/1992 |
| 5132041 | Liquid crystal compounds having ether tail moiety Disclosed are smetic liquid crystal compounds exhibiting ferroelectric behavior and having the formula R1 --OR2)a O--R3)b Z--R* wherein R1 is alkyl or alkoxyalkyl, R2 and R3 are... | 07/21/1992 |
| 5116527 | Display element based on the electroclinic effect The invenion relates to a display element based on the electroclinic effect containing a liquid crystal medium being a mixture of at least two chiral components and at least one non-chiral component, characterized in that said medium has a pitch compensat... | 05/26/1992 |
| 5114614 | Liquid crystal composition A nematic liquid crystal composition having a notable increase of the twistability (i.e. the reciprocal of the intrinsic helical pitch) with temperature rise is provided, which composition comprises (i) optically active substance(s) which are the same in ... | 05/19/1992 |
| 5112689 | Composite particle The invention relates to a composite particle comprising 2 to 98% by weight of a base resin having softending point of -10° to 120° C. and a number average molecular weight of 600 or more and 98 to 2% by weight of an anisotropic crystalline polymer havi... | 05/12/1992 |
| 5104572 | Azo compound and liquid crystal composition containing the same A novel azo compound, which has a high dichroic ratio as well as a high solubility in liquid crystals, and a liquid crystal composition containing the same as disclosed. The liquid crystal composition enables an excellent and clear color display.... | 04/14/1992 |
