25-02-2016 дата публикации
Номер: US20160053175A1
The present invention relates to a liquid crystal (LC) medium comprising a polymerisable compound, one or more compounds of formula Q, and one or more compounds of formula AN1 6. The LC medium according to claim 1 , wherein the one or more polymerisable compounds are of formula I{'br': None, 'sup': a', '1', 'b', '2', 'b, 'sub': 'm', 'R—B—(Z—B)—R\u2003\u2003I'}in which{'sup': a', 'b', '0', '00', '00', '1', '2', 'a', 'b, 'sub': 2', '5', '2, 'Rand Rdenote, on each occurrence identically or differently, and each, independently of one another, P, P-Sp-, H, F, Cl, Br, I, —CN, —NO, —NCO, —NCS, —OCN, —SCN, SFor straight-chain or branched alkyl having 1 to 25 C atoms, in which one or more non-adjacent CHgroups are optionally each replaced, independently of one another, by —C(R)═C(R)—, —C≡C—, —N(R)—, —O—, —S—, —CO—, —CO—O—, —O—CO—, or —O—CO—O— in such a way that O and/or S atoms are not linked directly to one another, and in which one or more H atoms are optionally replaced by F, Cl, Br, I, CN, P or P-Sp-, where, if Band/or Bcontain a saturated C atom, Rand/or Ralso denote a radical which is spiro-linked to said saturated C atom,'}{'sup': a', 'b, 'wherein at least one of the radicals Rand Rdenotes or contains a group P or P-Sp-,'}P denotes, on each occurrence identically or differently, and each, independently of one another, a polymerisable group,Sp denotes, on each occurrence identically or differently, and each, independently of one another, a spacer group or a single bond,{'sup': 1', '2, 'Band Bdenote, on each occurrence identically or differently, and each, independently of one another, an aromatic, heteroaromatic, alicyclic or heterocyclic group, which optionally contains fused rings, and which is unsubstituted, or mono- or polysubstituted by L,'}{'sup': b', '0', '00, 'sub': 2', '2', '2', '2', '2', '2', '2', '2', '2', 'n1', '2', '2', '2', '2', '2', 'n1, 'Zdenotes, on each occurrence identically or differently, and each, independently of one another, —O—, —S—, —CO—, —CO— ...
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