Patent ID: 11884862
Assignee: MERCK PATENT GMBH
Field: Basic materials chemistry (Chemistry)
Classification: CPC C  G | IPC C  G

Claim 21:
22. Shutter spectacles having 3D effects, LC lenses or positive VA displays, comprising in said shutter spectacles, LC lenses or positive VA displays a nematic liquid-crystalline medium, comprising in said nematic liquid-crystalline medium:
one or more compounds of formula I,, in which
R1 denotes a straight-chain alkyl radical having 3 to 5 C atoms, and
X1 denotes CF3;
and further comprising:
one or more compounds of formulae II and/or III,, in which
A denotes 1,4-phenylene or trans-1,4-cyclohexylene,
a denotes 0 or 1,
R3 denotes alkenyl having 2 to 9 C atoms, and
R4 denotes an alkyl radical having 1 to 15 C atoms, wherein at least one CH2 group is replaced by —CH═CH—, and optionally one or more CH2 groups in these radicals may each be replaced, independently of one another, by, in such a way that O atoms are not linked directly to one another, and in which, in addition, one or more H atoms may be replaced by halogen, or C1-15 alkyl in which one or more CH2 group is replaced, independently of one another, by, in such a way that O atoms are not linked directly to one another, and in which, in addition, one or more H atoms may be replaced by halogen;
or
one or more compounds of formulae X and/or XI,, in which, each, independently of one another, denote, R0 denotes an alkyl or alkoxy radical having 1 to 15 C atoms, where, in addition, one or more CH2 groups in these radicals may each be replaced, independently of one another, by, in such a way that O atoms are not linked directly to one another, and in which, in addition, one or more H atoms may be replaced by halogen, cycloalkyl with 3 to 6 C atoms,
X0 denotes F, Cl, a mono- or polyfluorinated alkyl or alkoxy radical having 1 to 6 C atoms, a mono- or polyfluorinated alkenyl or alkenyloxy radical having 2 to 6 C atoms, and
Y1-4 each, independently of one another, denote H or F;
or
one or more compounds of formulae D1, D2, D3, D4 or D5,, in which R0, X0 and Y1-Y2 independently have one of the meanings as defined above;
or
one or more compounds of formulae Y-1, Y-2, Y-3 or Y-4,, in which
R2A denotes H, an alkyl or alkoxy radical having 1 to 15 C atoms, where, in addition, one or more CH2 groups in these radicals may each be replaced, independently of one another, by, in such a way that O atoms are not linked directly to one another, and in which, in addition, one or more H atoms may be replaced by halogen,
L1 and L2 each, independently of one another, denote F, Cl, CF3 or CHF2,
Z2 and Z2′ each, independently of one another, denote a single bond, —CH2CH2—, —CH═CH—, —CF2O—, —OCF2—, —CH2O—, —OCH2—, —COO—, —OCO—, —C2F4—, —CF═CF— or —CH═CHCH2O—,
p denotes 0, 1 or 2,
q denotes 0 or 1,
(O)CvH2v+1 denotes OCvH2v+1 or CvH2v+1, and
v denotes 1 to 6;
or
one or more compounds of formula BS, in which
R1 and R2 each, independently of one another, denotes H, an alkyl or alkoxy radical having 1 to 15 C atoms, where, in addition, one or more CH2 groups in these radicals may each be replaced, independently of one another, by, in such a way that O atoms are not linked directly to one another, and in which, in addition, one or more H atoms may be replaced by halogen, and
c denotes 0, 1 or 2.