Merck Patent Gmbh

Yong-Hyun Choi

Hyun-Jin Yoon

Jae-Hyun Kang

Yong-Kuk Yun

Dong-Mee Song

Jung-Min Lee

Heui-Seok Jin

Bjoern Schnatwinkel

The present invention relates to a switching layer based on a liquid-crystalline mixture for use in an optical switching element. The invention also encompasses a switching element comprising the switching layer and a window element containing the switching element. The liquid crystalline mixture comprises a low-molecular liquid crystal component, a polymer component and a self-alignment additive for vertical alignment.

Switching layer for use in an optical switching element

The invention relates to a polymerisable LC material comprising one or more di- or multireactive mesogenic compounds and one or more compounds of formula UVI, wherein the individual radicals have one of the meaning as given in the claims. Furthermore, the present invention relates also to a method for its preparation, a polymer film with improved thermal durability and UV stability obtainable from a corresponding polymerisable LC material, to a method of preparation of such polymer film, and to the use of such polymer film and said polymerisable LC material for optical, electro-optical, decorative or security devices.

Polymerisable liquid crystal material and polymerised liquid crystal film

A polymerisable LC material containing  Furthermore, a method for preparing the polymerisable LC material, and a polymer film with improved thermal durability and UV stability obtainable from the polymerisable LC material, and a method of preparing such polymer film, and using such polymer film and the polymerisable LC material for optical, electro-optical, decorative or security devices.

A polymerisable LC material comprising at least one di- or multireactive mesogenic compound and at least one compound of formula CO-, wherein R, R, L, L, L, and n have the meanings as given in claim. Furthermore, a method for preparation of the LC material, a polymer film with improved thermal durability obtainable from the corresponding polymerisable LC material, a method of preparation of such polymer film, and the use of such polymer film and said polymerisable LC material for optical, electro-optical, decorative or security devices.

The present invention relates to a liquid-crystal medium which comprises one or more compounds each of formulae I and II in which the occurring groups and parameters have the meanings given in claim

Liquid-crystalline medium

The invention relates to a polymer film comprising a polymerized liquid crystal (LC) material with improved adhesion to a substrate, to methods for preparing such a polymer film, to a polymerizable LC material used for the preparation of such a polymer film, and to the use of the polymer film and said polymerizable LC material for optical, electrooptical, decorative or security uses and devices.

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Pyeongtaek, South Korea

Yong-Hyun Choi