Merck Patent Gmbh

Sven Baran

Atsutaka Manabe

Lars Lietzau

Constanze Brocke

Markus Czanta

Alexander Hahn

Sebastian Hofmeyer

Brigitte Schuler

Harald Hirschmann

Izumi Saito

Christian Jasper

The invention relates to a liquid-crystalline medium, preferably having a nematic phase and dielectric anisotropy of 0.5 or more, which comprises one or more compounds of formula T  and the other parameters have the meanings given in the text,to the use thereof in an electro-optical display, particularly in an active-matrix display based on the IPS or FFS effect, to displays of this type which contain a liquid-crystalline medium of this type, and to the compounds of formula T and their use for the improvement of the transmission and/or response times of a liquid-crystalline medium which comprises one or more additional mesogenic compounds.

Thiophene compound, liquid-crystalline medium and liquid-crystal display comprising the same

A liquid-crystalline medium, preferably having a nematic phase and dielectric anisotropy of 0.5 or more, which comprises one or more compounds of formula T  denotes and the use thereof in an electro-optical display, particularly in an active-matrix display based on the IPS or FFS effect, to displays of this type which contain a liquid-crystalline medium of this type, and to the compounds of formula T and their use for the improvement of the transmission and/or response times of a liquid-crystalline medium which contains one or more additional mesogenic compounds.

The invention relates to a liquid-crystalline medium, preferably having a nematic phase and negative dielectric anisotropy, which comprises  in which the parameters have the respective meanings indicated in claim, to the use thereof in an electro-optical display, particularly in an active-matrix display based on the VA, ECB, PALC, IPS or FFS effect, to displays of this type which contain a liquid-crystalline medium of this type, and to the use of the compounds of formula I for reduction of the dispersion of the birefringence of a liquid-crystalline medium which comprises one or more compounds of the formulae II and/or III.

Liquid-crystalline medium and liquid-crystal display comprising the same

The invention relates to an electro-optical liquid-crystal display having a re-alignment layer for re-alignment of the liquid crystals whose field has a component, crucial for the re-alignment, parallel to the liquid-crystal layer, containing a liquid-crystalline medium, characterized in that it comprises one or more compounds of the formula I1 to I3, (I1) (I2) (I3) and at least one compound of the formula II, in which the parameters R, R*, Z, Sp, k, l, p, Yto Y, Rand Rhave the meanings indicated in claim

Liquid-crystalline medium and electro-optical liquid-crystal display

The present invention relates to dielectrically positive liquid-crystalline media comprising one or more compounds of the formula I in which the parameters have the respective meanings indicated in the specification, and optionally one or more further dielectrically positive compounds and optionally one or more further dielectrically neutral compounds, and to liquid-crystal displays containing these media, especially to active-matrix displays and in particular to TN, IPS and FFS displays.

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Babenhausen, Germany

Sven Baran