Merck Patent Gmbh

Hassan Norouzi-arasi

Kevin Adlem

Eduardo Beltran Gracia

Naomi Weare

The invention relates to a polymerisable LC medium with flat, negative or positive optical dispersion, a polymer film with flat, negative or positive optical dispersion obtainable from such a material, and the use of the polymerisable LC medium and polymer film in optical, electro optical, electronic, semiconducting or luminescent components or devices.

Polymerisable LC medium and polymer film with flat optical dispersion

The invention relates to a polymerisable LC material comprising at least one di- or multireactive mesogenic compound of formula T,R-(AZ)-G-(Z-A)-R  Tand at least one compound of formula CO-1, wherein the parameter are R, A, Z, m1, G, Z, A, m2, R, Lto L, Rand R, and n are defined as given in claim Furthermore, the present invention relates also to a method for its preparation, a polymer film with improved thermal durability obtainable from the 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.

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Southampton, United Kingdom

Hassan Norouzi-arasi