| Patent Number |
Title Of Patent |
Date Issued |
| 7595101 |
Liquid-crystalline medium |
September 29, 2009 |
| Disclosed are a liquid-crystalline medium, which contains a compound of formula I ##STR00001## and the use thereof for electro-optical purposes, in particular for TN, TFT, IPS or OCB displays. |
| 7553522 |
LC-mixtures with low frequency dependence for TFT-displays |
June 30, 2009 |
| The present invention relates to dielectrically positive, nematic liquid crystalline media having a small frequency dependence of the dielectric anisotropy. The media are particularly well suited for application in active matrix displays. The present invention relates to the use of the |
| 7449222 |
Liquid-crystalline medium |
November 11, 2008 |
| The invention relates to a liquid-crystalline medium based on a mixture of polar compounds of positive dielectric anisotropy, comprising at least one pyran compound of the formula I ##STR00001## and one or more compounds selected from the group consisting of the compounds C1 to C9 # |
| 7442419 |
Liquid-crystalline medium and liquid-crystal display |
October 28, 2008 |
| Disclosed are a liquid-crystalline medium, the use thereof for electro-optical purposes, and displays containing this medium, characterised in that the medium contains one or more compounds of formula I ##STR00001## and one or more compounds selected from compounds of formulae K-1 t |
| 7438956 |
Liquid-crystalline medium and liquid-crystal display |
October 21, 2008 |
| Disclosed are liquid-crystalline medium, use thereof for electro-optical purposes, and displays containing this medium, wherein the medium contains one or more compounds of formula I ##STR00001## and one or more compounds of formulae K-1 to K-11, containing a CF.sub.2O bridge. |
| 7303791 |
Liquid crystalline medium |
December 4, 2007 |
| The invention relates to a liquid-crystalline medium comprising at least one compound of the formula I ##STR00001## in which X, ##STR00002## Z.sup.1, Z.sup.2, Z.sup.3, a, b and c are as defined in Claim 1, and to electro-optical displays containing a liquid-crystalline medium of this |
| 7201951 |
Liquid-crystalline medium |
April 10, 2007 |
| Described are media for liquid-crystal applications where the media include a mixture of polar compounds of positive dielectric anisotropy. The mixtures include one or more compounds of the formula I ##STR00001## in which: R.sup.1 is a halogenated or unsubstituted alkyl or alkoxy rad |
| 7105210 |
Liquid-crystalline medium |
September 12, 2006 |
| A liquid-crystalline medium based on a mixture of polar compounds of positive dielectric anisotropy, which contains one or more compounds of the formula I ##STR00001## and one or more compounds of the formula IA ##STR00002## in which R.sup.1, R.sup.2, ring A, L.sup.1-8, Z.sup.1, X. |
| 7078079 |
Liquid-crystalline medium |
July 18, 2006 |
| The invention relates to a liquid-crystalline medium based on a mixture of polar compounds of positive dielectric anisotropy, characterised in that it comprises one or more compounds of the general formula I ##STR00001## in which R.sup.1, ##STR00002## L.sup.1, L.sup.2, L.sup.3, L.sup.4, |
| 7056561 |
Liquid-crystalline medium |
June 6, 2006 |
| The invention relates to a liquid-crystalline medium based on a mixture of polar compounds of positive dielectric anisotropy, characterised in that it comprises one or more ester compounds of the formula I ##STR00001## and one or more compounds of the formula IA ##STR00002## in which |
| 7033652 |
Liquid-crystalline medium |
April 25, 2006 |
| Liquid-crystalline media comprising at least one compound of the formula I ##STR00001## in which X, L.sup.1, L.sup.2 and L.sub.3 are as defined herein, are useful for use in electro-optical displays. |
| 7029731 |
Liquid-crystalline medium |
April 18, 2006 |
| The invention relates to a liquid-crystalline medium based on a mixture of polar compounds having positive dielectric anisotropy, characterized in that it comprises one or more compounds of the general formula I ##STR00001## in which R, A.sup.1, Z.sup.1, Y and L are as defined in cl |
| 7001646 |
Liquid crystalline medium |
February 21, 2006 |
| The invention relates to a liquid crystalline medium based on a mixture of polar compounds with positive dielectric anisotropy, characterized in that said medium contains one or more alkenyl compounds of the formula (I) and one or more compounds of the formula (IA) wherein R, R.sup.1, |
| 6964794 |
Liquid-crystalline medium |
November 15, 2005 |
| The invention relates to a liquid-crystalline medium based on a mixture of polar compounds of positive dielectric anisotropy, characterized in that it comprises one or more compounds of the formula I ##STR1##in which R.sup.1, L.sup.1 and L.sup.2 are as defined in claim 1. |
| 6962733 |
Liquid-crystalline medium |
November 8, 2005 |
| The invention relates to a liquid-crystalline medium based on a mixture of polar compounds of positive dielectric anisotropy, characterized in that it comprises one or more compounds of the formula I ##STR1##in which R.sup.1, L.sup.1 and L.sup.2 are as defined in claim 1. |
| 6890607 |
Liquid-crystalline medium |
May 10, 2005 |
| A liquid-crystalline medium based on a mixture of polar compounds of positive dielectric anisotropy, which contains one or more compounds of the formula I ##STR1##in which R.sup.1 is a halogenated or unsubstituted alkyl or alkoxy radical having from 1 to 15 carbon atoms, where one |
| 6827990 |
Liquid-crystalline medium |
December 7, 2004 |
| The invention relates to a liquid-crystalline medium based on a mixture of polar compounds of positive dielectric anisotropy, characterized in that it comprises one or more compounds of the formula I ##STR1##in which R.sup.1, L.sup.1 and L.sup.2 are as defined in claim 1. |
| 6716491 |
Liquid-crystalline medium |
April 6, 2004 |
| A liquid-crystalline medium based on a mixture of polar compounds of positive dielectric anisotropy, which comprises one or more compounds of the formula I ##STR1##where R.sup.1, A.sup.1, A.sup.2, Z.sup.1, Z.sup.2, L.sup.1, L.sup.2 and n are as defined herein, is suitable for use in, |
| 6506462 |
Liquid crystalline medium |
January 14, 2003 |
| The invention relates to a liquid-crystalline medium based on a mixture of polar compounds having positive dielectric anisotropy, characterized in that it comprises one or more compounds of the general formula I ##STR1##in which R, Y and L.sup.1 are as defined therein. |
| 6406761 |
Liquid-crystalline medium |
June 18, 2002 |
| The invention relates to a liquid-crystalline medium based on a mixture of polar compounds having positive dielectric anisotropy, characterized in that it comprises one or more compounds of the general formula I ##STR1##in which R, Y and L.sup.1 are as defined in claim 1. |
| 6159393 |
Benzene derivatives and liquid-crystalline medium |
December 12, 2000 |
| A liquid-crystalline medium based on a mixture of polar compounds of positive dielectric anisotropy, characterized in that it contains one or more compounds of the general formula I ##STR1## in which R, Y, A.sup.1, A.sup.2, Z.sup.1, Z.sup.2, L.sup.1 and m are as defined herein. |
| 6146720 |
Electro-optical liquid-crystal display |
November 14, 2000 |
| The invention relates to an electro-optical liquid-crystal display having a realignment layer for realigning the liquid crystals whose field has a significant component parallel to the liquid-crystal layer and which contains a liquid-crystalline medium of positive dielectric anisotropy, |
| 6146719 |
Liquid-crystalline compounds, and liquid-crystalline medium |
November 14, 2000 |
| A liquid-crystalline medium based on a mixture of polar compounds of positive dielectric anisotropy, including one or more compounds of the general formula I: ##STR1## in which, R is H, an alkyl or alkenyl radical having 1 or 2 to 15 carbon atoms respectively which is unsubstitut |
| 6083573 |
Liquid-crystalline medium |
July 4, 2000 |
| The invention relates to a liquid-crystalline medium based on a mixture of polar compounds having positive dielectric anisotropy, characterized in that it comprises one or more compounds of the general formula I ##STR1## in which R is H, an alkyl or alkenyl radical having 1 to 15 car |
| 6066268 |
Liquid-crystalline medium |
May 23, 2000 |
| The invention relates to a liquid-crystalline medium based on a mixture of polar compounds having negative dielectric anisotropy, which contains at least one compound of formula I ##STR1## and at least one compound of formula II ##STR2## wherein R.sup.1 is alkyl or alkoxy wit |
| 6036884 |
Liquid-crystalline medium |
March 14, 2000 |
| The invention relates to a liquid-crystalline medium based on a mixture of polar compounds having positive dielectric anisotropy, characterized in that it comprises one or more compounds of the general formula I ##STR1## and simultaneously one or more compounds of the general formula |
| 5993692 |
Liquid-crystalline medium |
November 30, 1999 |
| The invention relates to a liquid-crystalline medium based on a mixture of polar compounds having positive dielectric anisotropy, characterized in that it comprises one or more compounds of the formula I ##STR1## and one or more compounds of the formula I.sup.* ##STR2## in wh |
| 5993691 |
Electro-optical liquid crystal display |
November 30, 1999 |
| The invention relates to an electro-optical liquid-crystal display having a realignment layer for realigning the liquid crystals whose field has a significant component parallel to the liquid-crystal layer and which contains a liquid-crystalline medium of positive dielectric anisotropy, |
| 5968412 |
Liquid-crystalline medium |
October 19, 1999 |
| Liquid-crystalline medium based on a mixture of polar compounds having positive dielectric anisotropy, characterized in that it comprises one or more compounds of the general formula I, ##STR1## in which R is H, an alkyl or alkenyl radical having 1 to 15 carbon atoms which is uns |
| 5965060 |
Electro-optical liquid crystal display |
October 12, 1999 |
| An electro-optical liquid crystal display with active-matrix addressing, in which the liquid-crystal layer has a homeotropic or tilted homeotropic alignment in the switched-off state and which contains a liquid-crystalline medium of negative dielectric anisotropy. The medium contains |
| 5744060 |
Liquid-crystalline medium |
April 28, 1998 |
| A liquid-crystalline medium based on a mixture of polar compounds having positive dielectric anisotropy, characterized in that it comprises one or more compounds of the general formula I ##STR1## in which R, Y, L.sup.1 and L.sup.2 are as defined in claim 1. |
