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US 11,884,862 B2Granted
Liquid-crystalline medium
AssigneeMerck Patent GmbH
InventorsAchim Goetz, Christian Hock, Lars Lietzau, Mark Goebel
Life of this patent
Estimating the term…
Abstract
Compounds of the formula I in which R1 is alkyl or alkoxy in which CH2 groups are optionally replaced, and X1 is alkyl OCF3, CF3, CHF2, OCF2CF3, CCF2CHFCF3, OCF═CF2, OCH═CF2 or F, a liquid-crystalline medium containing a compound of formula I, and use thereof in electro-optical liquid-crystal displays, in particular in TN, STN, TN-TFT, OCB, IPS, PS-IPS, FFS, HB-FFS or PS-FFS-, positive VA displays and in shutter spectacles for 3D effects and LC lenses.
Claims23
Shutter spectacles having 3D effects, LC lenses or positive VA displays containing 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 formulae CR, PH-1, PH-2, or BS,
- in which
- RB1, RB2, RCR1, RCR2, 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.
38 more elements
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.
38 more elements
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 CLP-n-T,
- in which
- n is 3,
- 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.
37 more elements
Dependencies are inferred from the claim text.