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US 2018/0187080 A1Published application
Liquid crystal medium containing polymerisable compounds
AssigneeMerck Patent GmbH
InventorsDong-Mee SONG, Ki-Sun KWON, Hoo-Yong LEE, Melanie KLASEN-MEMMER, Christian SCHOENEFELD, Konstantin SCHNEIDER, Matthias KOCH, Joerg PESCHKE, Matthias BREMER, Nils GREINERT
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Abstract
The present invention relates to a liquid crystal (LC) medium comprising polymerisable compounds, to a process for its preparation, to its use for optical, electro-optical and electronic purposes, in particular in LC displays, and to LC displays comprising it.
Claims34
A liquid crystal (LC) medium comprising
- a polymerisable component A) which comprises
- one or more first polymerisable compounds comprising a polymerisable group and a bi- or polycylic hydrocarbon group, and
- one or more second polymerisable compounds comprising a polymerisable group and a straight-chain, branched or monocyclic hydrocarbon group, and
- a liquid-cystalline component B) which comprises one or more compounds selected from formula A and B
- in which the individual radicals have, independently of each other and on each occurrence identically or differently, the following meanings:
- each, independently of one another, and on each occurrence, identically or differently
- R21, R31 each, independently of one another, alkyl, alkoxy, oxaalkyl or alkoxyalkyl having 1 to 9 C atoms or alkenyl or alkenyloxy having 2 to 9 C atoms, all of which are optionally fluorinated,
- X0 F, Cl, halogenated alkyl or alkoxy having 1 to 6 C atoms or halogenated alkenyl or alkenyloxy having 2 to 6 C atoms,
- Z31 —CH2CH2—, —CF2CF2—, —COO—, trans-CH═CH—, trans-CF═CF—, —CH2O— or a single bond,
- L21, L22, L31, L32 each, independently of one another, H or F,
- g 0, 1, 2 or 3.
8 more elements
Dependencies are inferred from the claim text.