Merck Patent Gmbh

Achim Götz

Michael Heckmeier

Joachim Krause

Brigitte Schuler

Volker Reiffenrath

Eike Poetsch

Werner Binder

Matthias Bremer

Detlef Pauluth

Andreas Taugerbeck

Erdal Durmaz

Malgorzata Rillich

The present invention relates to an electro-optical light modulation element and to electro-optical displays and display systems, such as television screens and computer monitors, containing elements of this type. The light modulation elements according to the invention contain a mesogenic modulation medium which is in the isotropic phase during operation of the light modulation elements and are particularly distinguished by very short response times in addition to good contrast and low viewing-angle dependence. The mesogenic modulation media used in the electro-optical light modulation elements are likewise a subject-matter of the present invention.

Electro-optical light control element, display and medium

The invention relates to an electro-optic light control element, electro-optic displays containing said elements and display systems such as TV screens and computer monitors. The inventive light control elements contain a mesogenic control medium which is present in the isotropic phase during operation of the light control elements and arc characterized both by good contrast and low angular field dependence and particularly by very short switching, times. The invention also relates to the mesogenic control media used in the electro-optic light control elements.

Electro-optic light control element, display and medium

The invention relates to liquid-crystalline phenol esters of the formula I in whichR, A, Z, m, L and Y are as defined in Claim, to liquid-crystalline media comprising at least one phenol ester of the formula I, and to electro-optical displays containing such a liquid-crystalline medium.

Liquid-crystalline phenol esters

The invention relates to liquid-crystalline phenol esters of the formula I in which

The invention relates to compounds of the formula I and 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 general formula I in whichR, A, A, Z, Y, Z, L, Land m are as defined herein.

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Alsbach-Hähnlein, Germany

Achim Götz