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Inventor:
Lietzau; Lars
Address:
Darmstadt, DE
No. of patents:
26
Patents:












Patent Number Title Of Patent Date Issued
8231806 Liquid-crystalline medium and liquid-crystal display July 31, 2012
The present invention relates to dielectrically positive liquid-crystalline media comprising in each case one or more compounds of the formula I ##STR00001## in which the parameters have the respective meanings indicated in the specification, and optionally one or more further diel
8221854 Liquid crystalline medium and liquid crystal display July 17, 2012
The present invention relates to dielectrically positive liquid-crystalline media comprising a dielectrically positive component, component A, comprising a dielectrically positive compound of the formula I ##STR00001## in which the parameters have the meaning indicated in the speci
8197709 Liquid-crystalline compounds June 12, 2012
The present invention relates to chemical compounds containing five or more benzene rings arranged in a linear manner and two bridging units between these rings, where at least one of these units represents a --CF.sub.2O-- bridge. The invention additionally relates to liquid-crystall
8168081 Liquid-crystalline medium May 1, 2012
The invention relates to a liquid-crystalline medium based on a mixture of dielectrically negative, polar compounds which comprises at least one compound of the formula I ##STR00001## in which the parameters have the meanings indicated in claim 1, to the use thereof in an electr
8163200 Cyclohexene compounds for liquid-crystalline mixtures April 24, 2012
The invention relates to liquid-crystalline compounds of the formula I ##STR00001## in which R.sup.1, R.sup.2, A.sup.1, A.sup.2, A.sup.3, A.sup.4, Z.sup.1, Z.sup.2, Z.sup.3, V, a, b and c have the meanings indicated in Claim 1, and to liquid-crystalline media comprising at least one
8012547 Pyridine compounds for liquid-crystalline mixtures September 6, 2011
The invention relates to liquid-crystalline compounds of the formula I ##STR00001## in which R.sup.1, R.sup.2, A.sup.1, A.sup.2, A.sup.3, A.sup.4, Z.sup.1, Z.sup.2, Z.sup.3, V, a, b and c have the meanings indicated in claim 1, and to liquid-crystalline media comprising at least o
7964253 Liquid-crystalline medium and liquid-crystal display June 21, 2011
Disclosed are dielectrically positive liquid-crystalline media containing a dielectrically positive component, component A, containing one or more dielectrically positive compounds of formula I ##STR00001## and optionally a second dielectrically positive component, component B, con
7922934 s-Indacene and indeno[5,6-d][1,3]dioxol-derivatives and use thereof as components of liquid-crys April 12, 2011
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 el
7790247 Liquid-crystalline medium September 7, 2010
Disclosed are a liquid-crystalline medium, which contains one or more compounds of formula I ##STR00001## their use for electro-optical purposes, to displays containing this medium, and to novel LC compounds for use in LC media and displays.
7767277 Fluorophenyl compounds for liquid-crystalline mixtures August 3, 2010
Disclosed are compounds of formula I ##STR00001## processes for the preparation thereof, and liquid-crystalline media and electro-optical displays containing said compounds.
7704567 Liquid-crystalline medium comprising fluorinated indane compound April 27, 2010
The invention relates to a liquid-crystalline medium based on a mixture of polar compounds of negative dielectric anisotropy, which comprises at least one compound of the formula I in which R.sup.11, R.sup.12, A.sup.1, A.sup.2, Z.sup.1, Z.sup.2, m and n are as defined in Claim 1, and to
7691456 Spiro[3.3] heptyl-dioxan derivatives and their use in liquid crystal media April 6, 2010
The invention relates to novel dioxane derivatives of the formula R.sup.1-(A.sup.1-Z.sup.1).sub.m-G-(Z.sup.2-A.sup.2).sub.n-R.sup.2, in which G denotes (I) or (II), and in which R.sup.1, R.sup.2, A.sup.1, A.sup.2, Z.sup.1, Z.sup.2, m and n have the meanings indicated in claim 1, to t
7691455 Liquid crystalline medium and liquid crystal display April 6, 2010
The instant invention relates to dielectrically positive liquid crystalline media comprising a dielectrically positive component, component A, comprising a dielectrically positive compound of formula I ##STR00001## wherein the parameters have the meaning given in the specification,
7682671 Liquid crystalline medium and liquid crystal display March 23, 2010
The instant invention relates to dielectrically positive liquid crystalline media comprising a dielectrically positive component, component A, comprising a dielectrically positive compound of formula I ##STR00001## wherein the parameters have the meaning given in the specification,
7674507 Pyran-dioxane derivatives, and the use thereof in liquid-crystalline media March 9, 2010
The invention relates to pyran-dioxane 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.
7670655 Liquid-crystalline medium March 2, 2010
Disclosed are liquid-crystalline mediums containing one or more compounds of formula I ##STR00001## and uses thereof for electro-optical purposes, e.g., to electro-optical liquid-crystal displays.
7622165 Liquid-crystalline medium November 24, 2009
Disclosed are a liquid-crystalline medium, which contains one or more compounds of formula I ##STR00001## their use for electro-optical purposes, to displays containing this medium, and to novel LC compounds for use in LC media and displays.
7612243 Cyclopenta[b]naphthalene derivatives November 3, 2009
The present invention relates to cyclopenta[b]naphthalene derivatives to the use thereof in liquid-crystalline or mesogenic media, to liquid-crystalline or mesogenic media comprising at least one of these cyclopenta[b]naphthalene derivatives, and to electro-optical display elements c
7575785 Cyclopenta[a]naphthaline derivatives August 18, 2009
The present invention relates to cyclopenta[a]naphthalene derivatives of the general formulae I to V ##STR00001## in which B, Z, A, n, R, X.sup.1, X.sup.1a, X.sup.1b, X.sup.2, X.sup.3, E.sup.1 and E.sup.2 are as defined in the claims, to the use thereof in liquid-crystalline media, to
7517471 As-indacen derivatives April 14, 2009
The present invention relates to compounds of the formula I ##STR00001## where X.sup.1, X.sup.2, R.sup.1, R.sup.2, A.sup.1, A.sup.2, Z.sup.1, Z.sup.2, m, n and rings B and B' are as defined in claim 1.
7514127 Dibenzofuran derivatives, dibenzothiophene derivatives and fluorene derivatives April 7, 2009
The present invention relates to compounds of the formula I ##STR00001## where Y, X.sup.1, X.sup.2, X.sup.3, R.sup.1, R.sup.2, A.sup.1, A.sup.2, Z.sup.1, Z.sup.2, m and n are as defined in Claim 1, to the use thereof as components in liquid-crystalline media, and to electro-optical displ
7482044 Liquid crystalline medium and liquid crystal display January 27, 2009
Disclosed are compounds of formula I ##STR00001## and dielectrically positive liquid crystalline media comprising a dielectrically positive component, component A, comprising a dielectrically positive compound of formula I, and optionally a second dielectrically positive component,
7445819 Liquid crystalline medium and liquid crystal display November 4, 2008
A dielectrically positive liquid crystalline media comprising a dielectrically positive component, component A, comprising a dielectrically positive compound of formula I ##STR00001## wherein the parameters have the meaning given in the specification, and optionally a second dielect
7335403 Liquid-crystalline medium February 26, 2008
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 R.sup.0, R.sup.1, A.sup.1, Z.sup.1 and m have the meanings indicated in Claim 1, and to the
7291366 Cyclopenta[b]naphthalene derivatives November 6, 2007
The present invention relates to cyclopenta[b]naphthalene derivatives of the general formula (I) in which Z, A, n, R, L.sup.5 and L.sup.8 as (II) and (III) are as defined in Claim 1, to the use thereof in liquid-crystalline or mesogenic media, to liquid-crystalline or mesogenic media
7182885 Fluorinated indenes and 1,7-dihydroindacenes of negative dielectric anisotropy February 27, 2007
Fluorinated indenes and 1,7-dihydroindacenes of the general formulae (I) and (II) of negative dielectric anisotropy (.DELTA..epsilon.<0) ##STR00001## in which T, A, R, L, X, Y, U, W, Z, n, m, p and q are as defined herein are suitable for use in liquid crystal display elements.










 
 
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