Merck Patent Gmbh

Timo Uebel

Detlef Pauluth

Melanie Klasen-Memmer

Harald Hirschmann

Rocco Fortte

Helmut Haensel

Graziano Archetti

Edward Plummer

Qiong Tong

Oliver Heppert

Leo Weegels

Michael Junge

Izumi Saito

Christian Jasper

Martin Engel

Thorsten Kodek

Ingo Almeroth

I-Hua Huang

Chia-Sheng Hsieh

Elena Neumann

Tamara Lehmann

Kristin Mueller

Yinghua Huang

A polymerizable compound having absorption in the long UV wavelength range, a liquid-crystal (LC) medium comprising the polymerizable compound, and the use of the compound or LC medium for optical, electro-optical and electronic purposes, in particular in LC displays, especially in LC displays of the PSA (polymer sustained alignment) or SA (self-aligning) mode, an LC display of the PSA or SA mode comprising the compound or LC medium, and a process of manufacturing the LC display.

Liquid-crystal medium comprising polymerizable compounds

Polymerizable compounds, processes and intermediates for their preparation, compositions containing them, polymers made from the compounds or compositions, and uses of the polymerizable compounds, compositions and polymers.

Polymerizable compounds

The present invention relates to polymerisable compounds, to processes and intermediates for the preparation thereof, to liquid-crystal (LC) media comprising them, and to the use of the polymerisable compounds and LC media for optical, electro-optical and electronic purposes, in particular in LC displays, especially in LC displays of the polymer sustained alignment (PS, PSA) and self-aligning (SA) type.

Polymerisable compounds and the use thereof in liquid-crystal displays

Liquid-crystalline media (LC media) comprising self-aligning mesogens (self-alignment additives) which effect homeotropic (vertical) alignment of the LC media at a surface or the cell walls of a liquid-crystal display (LC display). The self-alignment additives contain five-ring systems. LC displays having homeotropic alignment of the liquid-crystalline medium (LC medium) without conventional alignment layers are provided.

Compounds for the homeotropic alignment of liquid-crystalline media

Compounds of the formula I, liquid-crystalline media which contain at least one compound of the formula I and electro-optical displays which contain the LC mixtures, especially for the self-aligning VA, PSA, PS-VA, PVA, MVA, PM-VA, HT-VA or VA-IPS mode in which R, R, ring A, Z, Z, Sp, P, L, L, r1, r2, r3, m, n, p1 and p2 have the meanings indicated above.

Liquid-crystalline medium

Disclosed are liquid-crystalline media (LC media) comprising a low-molecular-weight component and a polymerisable component. The polymerisable component contains self-aligning, polymerisable meso-gens (polymerisable self-alignment additives) which effect homeotropic (vertical) alignment of the LC media at a surface or the cell walls of a liquid-crystal display (LC display). Disclosed are also LC displays having homeotropic alignment of the LC medium without alignment layers. Further disclosed are the structures for polymerisable self-alignment additives.

The invention relates to substituted quinquephenyls of the formulae indicated in the claims and description. They are particularly suitable as UV-stabilizing component in liquid-crystalline media.

Substituted polyphenyls

The invention relates to the compounds of the formula I and to a liquid-crystalline medium based on a mixture of polar compounds which contains at least one compound of the formula I in which R, ring A, L, L, L, L, L, L, L, L, Zand m have the meanings indicated in claimand to the use of the LC mixtures in electro-optical displays, especially for the self-aligning VA mode.

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Darmstadt, Germany

Timo Uebel