Patent application number | Description | Published |
20080277623 | Liquid Crystalline Medium - The invention relates to liquid-crystalline compounds of the formula I and to a liquid-crystalline medium based on a mixture of polar compounds, characterised in that it comprises one or more compounds of the formula I | 11-13-2008 |
20080312224 | Oxaphenanthrene Derivatives - The invention relates to compounds of the formula (I), in which R | 12-18-2008 |
20080319235 | PROCESS FOR THE PREPARATION OF RING COMPOUNDS - In a process for the preparation of ring compounds via a combinatorial synthesis, the reaction procedure is based on a Suzuki coupling, subsequent halo-demetallation and finally a further Suzuki coupling. The Suzuki couplings are each carried out with a boronic acid or a boronic acid ester. The reaction procedure uses provides novel ring compounds and uses novel synthesis units used for this purpose. The novel ring compounds are suitable for use as constituents in liquid-crystalline mixtures. | 12-25-2008 |
20090194738 | Liquid-crystalline medium - The invention relates to a liquid-crystalline medium based on a mixture of polar compounds, characterised in that it comprises one or more compounds of the formula I | 08-06-2009 |
20090318727 | PROCESS FOR THE PREPARATION OF RING COMPOUNDS - In a process for the preparation of ring compounds via a combinatorial synthesis, the reaction procedure is based on a Suzuki coupling, subsequent halo-demetallation and finally a further Suzuki coupling. The Suzuki couplings are each carried out with a boronic acid or a boronic acid ester. The reaction procedure uses provides novel ring compounds and uses novel synthesis units used for this purpose. The novel ring compounds are suitable for use as constituents in liquid-crystalline mixtures. | 12-24-2009 |
20100155662 | S-INDACENE AND INDENO[5,6-D][1,3]DIOXOL-DERIVATIVES AND USE THEREOF AS COMPONENTS OF LIQUID-CRYSTAL MIXTURES - The invention relates 1,2,3,6,7,8-hexahydro-s-indacene derivatives and 6,7-dihydro-5H-indeno[5,6-d]-1,3-dioxole derivatives, and to the use thereof as component(s) in liquid-crystalline media. In addition, the present invention relates to liquid-crystal and electro-optical display elements which contain the liquid-crystalline media according to the invention. | 06-24-2010 |
20100181533 | Liquid-crystal compounds and LC media - Disclosed are novel liquid-crystal compounds, processes and intermediates for the preparation thereof, the use thereof for optical, electro-optical and electronic purposes, in particular in liquid-crystal (LC) media and LC displays, and to LC media and LC displays containing the same. | 07-22-2010 |
20100208181 | OPTICAL COMPENSATION FILMS - The invention relates to compensation films for liquid-crystal displays with additions of rod-shaped liquid crystals mentioned below, to polariser plates which have at least one compensation film of this type, to liquid-crystal displays which have compensation films of the said type, and to processes for the production of the said compensation films, polariser plates and liquid-crystal displays, to the use of the compounds described in greater detail below as additions to compensation films for liquid-crystal displays, and to further subject-matters of the invention which can be seen below. | 08-19-2010 |
20100216986 | 2, 5-SELENOPHENE DERIVATIVES AND 2, 5-TELLUROPHENE DERIVATIVES - The invention relates to 2,5-selenophene derivatives and 2,5-tellurophene derivatives, inter alia for use as components in liquid-crystal mixtures, and to liquid-crystal mixtures which comprise the compounds, and to liquid-crystal displays based on these mixtures. The invention furthermore relates to processes for the preparation of the compounds and to Se/Te-containing intermediates. | 08-26-2010 |
20100252777 | LIQUID-CRYSTALLINE MEDIUM AND LIQUID-CRYSTAL DISPLAY - Disclosed are a dielectrically negative, liquid-crystalline medium which contains a (first) dielectrically negative component (component A), which contains one or more dielectrically negative compounds of formula I | 10-07-2010 |
20100271576 | OPTICAL COMPENSATION FILM FOR LIQUID CRYSTAL DISPLAYS AND INVENTIONS ASSOCIATED THEREWITH - Compensation films for liquid crystal displays, polarizer plates having at least one such compensation film, liquid crystal displays having compensation films, and a method for producing compensation films, polarizer plates, and liquid crystal displays, as well as the use of compounds of the formula (I) described below in more detail as additives to compensation films for liquid crystal displays is provided. The optical compensation films include one or more rod-shaped liquid crystals of the formula (I) as additives, wherein the radicals have the meanings provided in the description for adjusting suitable retardation values Re and Rth. | 10-28-2010 |
20110034738 | PROCESS FOR THE PREPARATION OF RING COMPOUNDS - In a process for the preparation of ring compounds via a combinatorial synthesis, the reaction procedure is based on a Suzuki coupling, subsequent halo-demetallation and finally a further Suzuki coupling. The Suzuki couplings are each carried out with a boronic acid or a boronic acid ester. The reaction procedure uses provides novel ring compounds and uses novel synthesis units used for this purpose. The novel ring compounds are suitable for use as constituents in liquid-crystalline mixtures. | 02-10-2011 |
20110049427 | Thiophene derivatives, and LC media containing same - The present invention relates to thiophene derivatives, to processes and intermediates for the preparation thereof, to the use thereof for optical, electro-optical and electronic purposes, in particular in liquid-crystal (LC) media and LC displays, and to LC media and LC displays comprising same. | 03-03-2011 |
20110248216 | LIQUID-CRYSTAL MEDIUM - The invention relates to a liquid-crystalline medium having negative dielectric anisotropy which comprises at least one compound of the formula I | 10-13-2011 |
20120001123 | THIOPHENE DERIVATIVES, AND LC MEDIA COMPRISING SAME - The present invention relates to thiophene derivatives, to processes and intermediates for the preparation thereof, to the use thereof for optical, electro-optical and electronic purposes, in particular in liquid-crystal (LC) media and LC displays, and to LC media and LC displays comprising same. | 01-05-2012 |
20120149943 | PROCESS FOR THE PREPARATION OF RING COMPOUNDS - In a process for the preparation of ring compounds via a combinatorial synthesis, the reaction procedure is based on a Suzuki coupling; subsequent halo-demetallation and finally a further Suzuki coupling. The Suzuki couplings are each carried out with a boronic acid or a boronic acid ester. The reaction procedure uses provides novel ring compounds and uses novel synthesis units used for this purpose. The novel ring compounds are suitable for use as constituents in liquid-crystalline mixtures. | 06-14-2012 |
20120182200 | COMPONENTS FOR HIGH-FREQUENCY TECHNOLOGY, AND LIQUID-CRYSTALLINE MEDIA - The present invention relates to a component for high-frequency technology or for the microwave range and millimetre wave range of the electromagnetic spectrum, characterised in that it contains a liquid-crystal compound of the formula I | 07-19-2012 |
20120205583 | COMPOUNDS FOR A LIQUID CRYSTAL MEDIUM AND HIGH-FREQUENCY COMPONENTS CONTAINING SAID LIQUID CRYSTAL MEDIUM - The present invention relates to bistolans of the formula I | 08-16-2012 |
20120261615 | DEVICES FOR HIGH-FREQUENCY TECHNOLOGY, LIQUID-CRYSTALLINE MEDIA AND COMPOUNDS - The present invention relates to a device for high-frequency technology, or for the microwave region and millimetre wave region of the electromagnetic spectrum, characterised in that it contains a liquid-crystal medium which consists of one or more compounds, which one or more compounds, which contain 6 to 15 five-, six- or seven-membered rings, preferably 1,4-linked phenylene rings, or in that it contains a liquid-crystal medium which itself comprises a component A, which itself consists of one or more of the said compounds, which one or more compounds, which contain 6 to 15 five-, six- or seven-membered rings, preferably 1,4-linked phenylene rings. The present invention additionally relates to compounds of the formula (I), in which the parameters have the meanings given in the text, and to the corresponding, novel liquid-crystal media, to the use and preparation thereof, and to the production and use of the devices. The devices according to the invention are particularly suitable phase shifters in the microwave and millimetre wave region, for microwave and millimetre wave array antennas and very particularly for so-called tunable “reflectarrays”. | 10-18-2012 |
20120267571 | COMPOUNDS FOR A LIQUID-CRYSTALLINE MEDIUM, AND THE USE THEREOF FOR HIGH-FREQUENCY COMPONENTS - The present invention relates to compounds of the formula I | 10-25-2012 |
20120268706 | COMPOUNDS AND LIQUID-CRYSTALLINE MEDIUM - The invention relates to compounds of the formula I, and to a liquid-crystalline medium, preferably having a nematic phase and negative dielectric anisotropy, which comprises one or more compounds of formula I, defined herein, for use in an electro-optical display, particularly in an active-matrix display based on the VA, ECB, PALO, FFS or IPS effect, and to the use of the compounds of the formula I for the stabilization of a liquid-crystalline medium which comprises one or more compounds of the formula II and one or more compounds of the formulae III-1 to III-4, defined herein. | 10-25-2012 |
20120273724 | COMPOUNDS FOR A LIQUID-CRYSTALLINE MEDIUM, AND USE FOR HIGH-FREQUENCY COMPONENTS - The present invention relates to compounds of the formula (I) | 11-01-2012 |
20130183460 | LIQUID-CRYSTALLINE MEDIA - The invention relates to liquid-crystalline media which can be used, in particular, for electro-optical displays having active-matrix addressing based on the ECB effect and for IPS (in-plane switching) displays or FFS (fringe field switching) displays. | 07-18-2013 |
20130221274 | COMPOUNDS FOR A LIQUID-CRYSTALLINE MEDIUM, AND THE USE THEREOF FOR HIGH-FREQUENCY COMPONENTS - The present invention relates to 1,4-diethynylbenzene derivatives having substituents in the 2,3-position (cf. formula I, Claims), to the use thereof for high-frequency components, to liquid-crystalline media comprising the compounds, and to high-frequency components, in particular antennae, especially for the gigahertz range, comprising these media. The liquid-crystalline media serve, for example, for the phase shifting of microwaves for tuneable ‘phased-array’ antennae. | 08-29-2013 |
20130248763 | LIQUID-CRYSTALLINE MEDIUM AND ELECTRO-OPTICAL DISPLAY - The invention relates to a liquid-crystalline medium having a nematic phase and negative dielectric anisotropy which comprises a) a compound of the formula (I) b) one or more compounds of the formula (II) and c) one or more compounds selected from the group of the compounds of the formulae (III-1) to (III-4), in which the parameters have the meanings indicated in Claim | 09-26-2013 |
20130277611 | COMPOUNDS FOR A LIQUID CRYSTALLINE MEDIUM AND USE THEREOF FOR HIGH FREQUENCY COMPONENTS - The present invention relates to compounds containing at least three ring systems, at least one of which is a 2,6-naphthylene group, and two unsaturated bridging groups between the ring systems, and to the use of the compounds for high-frequency components, in particular antennae, especially for the gigahertz region. The liquid-crystalline media comprising these compounds serve, for example, for the phase shifting of microwaves for tuneable ‘phased-array’ antennae. | 10-24-2013 |
20130292608 | LIQUID-CRYSTALLINE MEDIA, COMPONENTS FOR HIGH-FREQUENCY TECHNOLOGY, AND MESOGENIC COMPOUNDS - The present invention relates to a liquid-crystal medium which comprises a component A which consists of one or more compounds of the formula I | 11-07-2013 |
20140008573 | COMPOUNDS HAVING A C-C TRIPLE BOND - The present invention relates to compounds containing at least one C—C triple bond within a chain of at least 3 ring systems which have positive dielectric anisotropy, to the use thereof for high-frequency components, to liquid-crystalline media comprising the compounds, and to high-frequency components, in particular antennae, especially for the gigahertz region, comprising these media. The liquid-crystalline media serve, for example, for the phase shifting of microwaves for tuneable ‘phased-array’ antennae. | 01-09-2014 |
20140008575 | MESOGENIC COMPOUNDS, LIQUID CRYSTAL MEDIA AND COMPONENTS FOR HIGH FREQUENCY TECHNOLOGY - The present invention relates to a liquid-crystal medium which comprises a component A which consists of one or more compounds of the formula IA | 01-09-2014 |
20140021405 | MESOGENIC COMPOUNDS, LIQUID-CRYSTALLINE MEDIA AND COMPONENTS FOR HIGH-FREQUENCY TECHNOLOGY - The present invention relates to a liquid-crystal medium which comprises a component A which consists of one or more compounds of the formula IA (IA), in which the parameters have the respective meanings given in the claims or in the text, and to the corresponding, novel mesogenic compounds and to the preparation thereof. The present invention likewise relates to the use of these liquid-crystal media, in particular in components for high-frequency technology, and to components of this type which contain the media according to the invention, and to the production and use of these components. The components according to the invention are suitable, in particular, for phase shifters in the microwave and millimetre wave region, for microwave and millimetre wave array antennae and very particularly for so-called tuneable “reflectarrays”. | 01-23-2014 |
20140021409 | MESOGENIC COMPOUNDS, LIQUID-CRYSTALLINE MEDIA AND COMPONENTS FOR HIGH-FREQUENCY TECHNOLOGY - The present invention relates to a liquid-crystal medium which comprises a component A which consists of one or more compounds of the formula X | 01-23-2014 |
20140061536 | COMPOUNDS OF LIQUID CRYSTALLINE MEDIUM AND USE THEREOF FOR HIGH-FREQUENCY COMPONENTS - The present invention relates to compounds of the formula I | 03-06-2014 |
20140110630 | LIQUID-CRYSTALLINE MEDIUM, METHOD FOR THE STABILIZATION THEREOF, AND LIQUID-CRYSTAL DISPLAY - The invention relates to compounds of the formula I, and to a liquid-crystalline medium, preferably having a nematic phase and negative dielectric anisotropy, which comprises
| 04-24-2014 |
20140111730 | Liquid-crystalline medium, method for the stabilization thereof, and liquid-crystal display - The invention relates to compounds of the formula I, and to a liquid-crystalline medium, preferably having a nematic phase and negative dielectric anisotropy, which comprises
| 04-24-2014 |
20140239227 | LIQUID CRYSTAL MEDIUM AND HIGH-FREQUENCY COMPONENTS COMPRISING SAME - The present invention relates to liquid crystal media and to high-frequency components comprising same, especially microwave components for high-frequency devices, such as devices for shifting the phase of microwaves, in particular for microwave phased-array antennas. | 08-28-2014 |
20150014584 | LIQUID CRYSTAL MEDIUM AND HIGH FREQUENCY COMPONENTS COMPRISING SAME - The present invention relates to liquid crystal media and to high frequency components comprising same, especially microwave components for high-frequency devices, such as devices for shifting the phase of microwaves. | 01-15-2015 |