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| Number | Title | Issue Date |
| 7771616 | Polymerizable liquid crystal compound having fused ring and homo- and copolymer of the polymerizable liquid crystal compound A polymerizable liquid crystal compound of formula (1). The compound has high optical (refractive index) anisotropy (Δn), exhibits a liquid crystal phase at room temperature (having a broad liquid crystal phase temperature range) without crystallization, has high s... | 08/10/2010 |
| 7722784 | Liquid crystal composition, liquid crystal device, reflection display material, light modulating material, and anthraquinone compound The liquid crystal composition of the present invention contains a compound represented by the following Formula (1) and a liquid crystal. In Formula (1), at least one among R1 to R7 is a liquid crystalline substituent, and those among R1 ... | 05/25/2010 |
| 7670505 | Compounds comprising 2,6-naphthyl groups Compounds of the general formula I (variables defined herein) and processes for making compounds including 2,6 -naphthyl radicals are provided. Polymerizable or nonpolymerizable liquid-crystalline compositions including one... | 03/02/2010 |
| 7534370 | Polymerizable liquid crystal composition, optical anisotropic material, optical element and optical head device To provide optical elements such as a phase plate suitably used in a broadband range and a polarizing diffraction element excellent in diffraction efficiency, a polymerizable liquid crystal composition to be used for them, and an optical head device using them. ... | 05/19/2009 |
| 7517471 | As-indacen derivatives The present invention relates to compounds of the formula I where X1, X2, R1, R2, A1, A2, Z1, Z2, m, n and rings B and B... | 04/14/2009 |
| 7435455 | Dihydrocoumarin derivative, liquid crystal composition containing the same, and liquid crystal display device A dihydrocoumarin ring-containing compound of the invention is represented by the following formula (1): wherein R represents hydrogen or an alkyl; A1 to A3 each represents 1,4-cyclohexylene or 1,4-phe... | 10/14/2008 |
| 7429411 | Chroman compound, liquid crystal composition including the compound and liquid crystal display element including the liquid crystal composition The compound (1) according to the invention has general solid-state properties necessary for a compound, stability against heat, light and the like, a suitable optical anisotropy, a suitable dielectric anisotropy, and excellent compatibility with other liquid crysta... | 09/30/2008 |
| 7425354 | Photopolymerizable liquid crystal composition, its polymer or polymer composition, and optical compensation element The present invention provides a photopolymerizable liquid crystal composition comprising at least a compound having oxiranyl as a first component and at least a compound having oxetanyl as a second component, a polymer or a polymer composition obtained from the liq... | 09/16/2008 |
| 7419620 | Dichroic mixtures A mesogenic, crosslinkable mixture comprising at least one polymerisable liquid crystal and at least one polymerisable dichroic dye of the general formula I: wherein A represents a dichroic residue exhibiting at lea... | 09/02/2008 |
| 7419706 | Liquid crystalline medium The present invention relates to a liquid crystalline mixture comprising a) 1-25% by weight of at least one compound of the formula I b) 5-80% by weight of at least one compound of the formula II... | 09/02/2008 |
| 7416765 | Polymerizable liquid crystalline composition and liquid crystal film made from the composition A polymerizable liquid crystalline composition comprises a side chain liquid crystalline polymer obtained by radical-copolymerizing a (meth)acrylic compound has an optically active site and a (meth)acrylic compound having an oxetanyl group, and a cation generator an... | 08/26/2008 |
| 7413782 | Polymerizing binaphthalene derivatives Provided are a polymerizing liquid-crystalline compound of formula (1). In formula (1), Q1 to Q4 each independently represent a formula (2), a hydrogen atom, a halogen atom, an alkyl group or the like;... | 08/19/2008 |
| 7407691 | Photopolymerizable oxetane derivative and liquid-crystal composition containing it Provided are a liquid-crystal compound and a liquid-crystal composition containing the compound, of which the advantages are that they show nematic hybrid orientation on a rubbed TAC substrate, they are polymerizable in open air and they readily give a polymer havin... | 08/05/2008 |
| 7399505 | Fluorinated phenanthrenes and their use in liquid-crystal mixtures Compounds of the formula (I) are described in which M1 is, for example, —CO—O— or a single bond A1 is, for example, 1,4-phenylene, ... | 07/15/2008 |
| 7396486 | Polymerizable mixtures A mixture which is polymerizable to polymers exhibiting a high optical anisotropy which is stable during polymerization. The mixture contains a first monomer or (and/or) oligomer having two or more polymerizable functional groups and optionally a mesogenic group; a ... | 07/08/2008 |
| 7393467 | Wholly aromatic liquid-crystalline polyester and method for preparing the same Provided is a liquid-crystalline polyester with good properties obtainable by subjecting a prepolymer consisting of the repeating units represented by formulae (I), (II), (III) and (IV): to heat treatment in a substantially... | 07/01/2008 |
| 7381350 | Fluorene derivatives and polymers thereof The compound (1) or (2), a composition containing the compound and a polymer obtained by polymerizing the composition. R1 is fluorine, cyano, alkyl, and so forth; R2 is hydrogen, alkyl, and so forth; R... | 06/03/2008 |
| 7378135 | Polymerizable liquid crystal composition and optically anisotropic thin film In order to obtain such a liquid crystal thin film having optical anisotropy that suffers less change in optical characteristics thereof under heating to 200° C., the following polymerizable liquid crystal composition is provided as a raw material therefor. The com... | 05/27/2008 |
| 7371437 | Liquid-crystalline medium A liquid-crystalline medium based on a mixture of polar compounds having at least one compound of the formula I in which R11, R12 and have the meanings indic... | 05/13/2008 |
| 7357964 | Liquid-crystalline vinyl ketone derivatives and their polymers Provided is a liquid-crystalline, polymerizable vinyl ketone compound of formula (1): Preferably, R1 is hydrogen, halogen, —CN, —CF3, —CF2H, —CFH2, —OCF3, —... | 04/15/2008 |
| 7351453 | Liquid crystal medium Liquid crystal (LC) media based on a mixture of polar compounds having negative dielectric anisotropy, their use in electro-optical displays, especially those having active matrix addressing based on the ECB (electrically controlled birefringence) or VA (vertically ... | 04/01/2008 |
| 7341675 | Liquid crystalline polymer composition Liquid crystalline polymers containing specified ratios of repeat units derived from hydroquinone, 2,6-naphthalenedicarboxylic acid, 4-hydroxybenzoic acid and optionally terephthalic acid have exceptionally high heat distortion temperatures, making especially useful... | 03/11/2008 |
| 7335403 | Liquid-crystalline medium The invention relates to a liquid-crystalline medium based on a mixture of polar compounds having negative dielectric anisotropy, which comprises at least one compound of the formula (I) in which R0, R1, A1, Z1 and m have ... | 02/26/2008 |
| 7329896 | Polymerizable charge transport compounds The invention relates to polymerizable charge transport compounds, their use as semiconductors or charge transport materials, in optical, electrooptical or electronic devices like for example organic field effect transistors (FET or OFET) for thin film transistor li... | 02/12/2008 |
| 7326447 | Benzochromene derivatives The present invention relates to benzochromene derivatives of the formula I in which the various parameters are as defined in the text, and to liquid-crystal media which comprise these compounds, and to the use o... | 02/05/2008 |
| 7316830 | Liquid-crystalline phenol esters The invention relates to liquid-crystalline phenol esters of the formula I in which R, A1, Z1, m, L and Y are as defined in Claim 1, to liquid-crystalline media comprising a... | 01/08/2008 |
| 7316829 | Liquid crystal composition and display device A liquid crystal composition comprising a dichroic dye, a host liquid crystal and at least one kind of solid matter having an average particle diameter of 1 nm to 10 m, the dichroic dye having a substituent represented by the following formula (1): -(Het) | 01/08/2008 |
| 7314654 | Optically anisotropic element comprising discotic compound An optically anisotropic element comprises a discotic compound. The discotic compound has an oriented discotic plane. The discotic compound has a molecular structure including a discotic core and 3 to 20 combinations of ester bonds (—O—CO—) and 1- or 2-alkenyl... | 01/01/2008 |
| 7303791 | Liquid crystalline medium The invention relates to a liquid-crystalline medium comprising at least one compound of the formula I in which X, Z1, Z2, Z | 12/04/2007 |
| 7297378 | Fluorinated fused aromatics and their use in liquid-crystal mixtures Compounds of the formula (I) in which R1, R2, p, q, G and X are each as defined in the description, use of compounds of the formula (I) in liquid-crystal mixtures, | 11/20/2007 |
| 7297379 | Polyfluorinated fused aromatics and their use in liquid-crystal mixtures A compound of the formula (I) is described where R1 and R2 are defined in the specification and p=q=r=0 or 1 with p+q+r≠0. The compound of formula (I) has high dielectric anisotropy, th... | 11/20/2007 |
| 7294369 | Polymerisable cinnamates with lateral substitution The invention relates to new polymerisable mesogenic or liquid crystalline compounds comprising a laterally substituted cinnamate group, to polymerisable mesogenic or liquid crystalline mixtures and anisotropic polymers prepared thereof, and to the use of the new co... | 11/13/2007 |
| 7291366 | Cyclopenta[b]naphthalene derivatives The present invention relates to cyclopenta[b]naphthalene derivatives of the general formula (I) in which Z, A, n, R, L5 and L8 as (II) and (III) are as defined in Claim 1, to the use thereof in liquid-crystalline or mesogenic media, to liquid-... | 11/06/2007 |
| 7291727 | Light-harvesting discotic liquid crystalline porphyrins and metal complexes Novel discotic liquid crystalline porphyrins and discotic liquid crystalline metal complexes, methods for their preparation, and device fabrication are disclosed. Materials with partially perfluorinated alkyl group in the peripheral chains show a strong tendency tow... | 11/06/2007 |
| 7282246 | Fluorinated xanthenes and use thereof in liquid-crystal mixtures Concerning the compound of the formula (I) R1, R3 are each independently, for example, H R2, R4 are each independently, for ex... | 10/16/2007 |
| 7273641 | Optically anisotropic element comprising discotic compound An optically anisotropic element comprises a discotic compound. The discotic compound has an oriented discotic plane. The discotic compound has a molecular structure represented by the formula (I) of D(—O—CO—CR1═CR2—X—R3)... | 09/25/2007 |
| 7270856 | Cyclobutane derivatives The invention relates to novel cyclobutane derivatives of the formula (I), in which R1, R2, A, Z, m, n and o have the meaning indicated in claim 1, to the use thereof as components of liquid-crystalline media, and to liquid-crystal and e... | 09/18/2007 |
| 7265163 | Light emitting polymer There is provided a process for forming a light emitting polymer comprising photopolymerization of a reactive mesogen having an endgroup which is susceptible to photopolymerization e.g. by a radical polymerization process. Also provided are methods for using the lig... | 09/04/2007 |
| 7255900 | Fluorinated heterocycles and their use in liquid-crystal mixtures In the compound of the formula (I), where: R1, R2 are each independently, for example, H or a straight-chain or branched alkyl radical p, q are each independently 0... | 08/14/2007 |
| 7250198 | Liquid-crystalline compounds Liquid-crystalline compounds of the formula I in which R1, A1, A2, Z1, Z2, X, a, b, L1, L2 and L | 07/31/2007 |
