Abstract: A liquid-crystalline medium containing one or more compounds of formula IA, and the use thereof in an active-matrix display, in particular in a VA, IPS, U-IPS, FFS, UB-FFS, SA-VA, SA-FFS, PS-VA, PS-OCB, PS-IPS, PS-FFS, PS-UB-FFS, PS-posi-VA, PS-TN, polymer stabilised SA-VA or polymer stabilised SA-FFS display.

Abstract: Compounds of the formula I in which groups and parameters that occur have the definitions given in the disclosure. Preparation methods for these compounds. Uses of the compounds as components in liquid-crystalline media. Electrooptical display elements comprising the liquid-crystalline media.

Abstract: A mechanical switch (10), in particular a light switch and/or a roller shutter switch and/or thermostat switch is provided. The mechanical switch (10) has a switching contact assembly (20), in particular a monostable, bistable or tristable switching contact assembly (20), and a base carrier (40), in which the switching contact assembly (20) is received The base carrier (40) has a holding device (50) for receiving an electromechanical actuator unit (100), which is designed in such a way that an electromechanical actuator unit (100) received in the holding device (50) can be supplied with voltage for effecting a state change of the switching contact assembly (20) independently of an external mechanical action on an operating mechanism by means of the electromechanical actuator unit (100).

Abstract: An electro-optical display element in the areas of displays for watches, pocket calculators, large display panels as used in railway stations, airports and sports arenas, displays of portable or desktop computers, navigation systems and video applications, which upon the application of a voltage to the display element achieves that the longitudinal axis of molecules in a liquid-crystalline media orients itself in such a way that the larger of the dielectric constants becomes effective, which electro-optical display element contains two plates of a capacitor.

Abstract: The invention relates to compounds of the formula I in which groups and parameters that occur have the definitions given in Claim 1, to the preparation thereof, to the use thereof as components in liquid-crystalline media and to electrooptical display elements comprising the liquid-crystalline media of the invention.

Abstract: Compounds of the formula I, and liquid-crystalline media, preferably having a nematic phase and negative dielectric anisotropy, comprising a) one or more compounds of the formula I and one or more compounds selected from b) one or more compounds of formula II and/or c) one or more compounds selected from compounds of formulae III-1 to III-4 and formula B Methods for making and using these liquid-crystalline media in electro-optical displays, particularly in active-matrix displays based on the VA, ECB, PALC, FFS or IPS effect and the displays which contain these media. Methods for stabilizing liquid-crystalline media with compounds of formula I, where the liquid-crystalline media comprise one or more compounds of the formula II and one or more compounds selected from compounds of the formulae III-1 to III-4 and formula B.

Abstract: Compounds of formula I, and liquid-crystalline media, preferably having a nematic phase and negative dielectric anisotropy, comprising: a) one or more compounds of formula I and one or more other compounds selected from: b) one or more compounds of formula II and/or c) one or more compounds selected from compounds of formulae III-1 to III-4 and B Use thereof in electro-optical displays, particularly in active-matrix displays based on the VA, ECB, PALC, FFS or IPS effect and use of compounds of formula I for stabilisation of liquid-crystalline media which comprise one or more compounds of formula II and/or one or more compounds selected from compounds of formulae III-1 to III-4 and B.

Abstract: “A mechanical switch (10), in particular a light switch and/or a roller shutter switch and/or thermostat switch is provided. The mechanical switch (10) has a switching contact assembly (20), in particular a monostable, bistable or tristable switching contact assembly (20), and a base carrier (40), in which the switching contact assembly (20) is received The base carrier (40) has a holding device (50) for receiving an electromechanical actuator unit (100), which is designed in such a way that an electromechanical actuator unit (100) received in the holding device (50) can be supplied with voltage for effecting a state change of the switching contact assembly (20) independently of an external mechanical action on an operating mechanism by means of the electromechanical actuator unit (100).

Abstract: A liquid-crystalline medium containing one or more compounds of formula IA, and the use thereof in an active-matrix display, in particular in a VA, IPS, U-IPS, FFS, UB-FFS, SA-VA, SA-FFS, PS-VA, PS-OCB, PS-IPS, PS-FFS, PS-UB-FFS, PS-posi-VA, PS-TN, polymer stabilised SA-VA or polymer stabilised SA-FFS display.

Abstract: Polymerisable compounds and processes and intermediates for the preparation thereof. Also liquid-crystal (LC) media comprising the polymerisable compounds, and the use of the polymerisable compounds and LC media for optical, electro-optical and electronic purposes, in particular in LC displays, especially in LC displays of the PSA (“polymer sustained alignment”) type.

Abstract: Disclosed are compounds of the formula I, liquid-crystalline media comprising the compounds of formula I, and the use of these liquid-crystalline media in liquid-crystal displays.

Abstract: Compounds of formula I, in which X1, X2, Sp, and R are as defined herein, are suitable for use in liquid-crystal media, such as liquid-crystal media used in liquid-crystal displays.

Abstract: The present invention relates to polymerizable compounds, to processes and intermediates for the preparation thereof, and to the use thereof for optical, electro-optical and electronic purposes, in particular in liquid-crystal (LC) media and LC displays, especially in LC displays of the PS (“polymer sustained”) or PSA (“polymer sustained alignment”) type.

Abstract: The present invention relates to organic electroluminescent devices which comprise aromatic ring systems with two or three condensed rings as emitter materials, and to their possible uses.

Abstract: The invention concerns polymers, electroluminescence devices, compositions and their use.

Abstract: Compounds of formula I, and liquid-crystalline media, preferably having a nematic phase and negative dielectric anisotropy, comprising: a) one or more compounds of formula I and one or more other compounds selected from: b) one or more compounds of formula II and/or c) one or more compounds selected from compounds of formulae III-1 to III-4 and B Use thereof in electro-optical displays, particularly in active-matrix displays based on the VA, ECB, PALC, FFS or IPS effect and use of compounds of formula I for stabilisation of liquid-crystalline media which comprise one or more compounds of formula II and/or one or more compounds selected from compounds of formulae III-1 to III-4 and B.

Abstract: Compounds of the formula I, and liquid-crystalline media, preferably having a nematic phase and negative dielectric anisotropy, comprising a) one or more compounds of the formula I and one or more compounds selected from b) one or more compounds of formula II and/or c) one or more compounds selected from compounds of formulae III-1 to III-4 and formula B Methods for making and using these liquid-crystalline media in electro-optical displays, particularly in active-matrix displays based on the VA, ECB, PALC, FFS or IPS effect and the displays which contain these media. Methods for stabilizing liquid-crystalline media with compounds of formula I, where the liquid-crystalline media comprise one or more compounds of the formula II and one or more compounds selected from compounds of the formulae III-1 to III-4 and formula B.

Abstract: The present invention relates to a process for the stabilisation of a Liquid crystal (LC) mixture with negative dielectric anisotropy characterised in that one or more stabilisers of formula I Ra-A1-(Z1-A2)m1-Rb ??I in which Ra, Rb, A1, A2, Z1 and m1 have the meanings given in claim 1, are added to the LC mixture in a total amount of ?0.1% based on the total mixture, to an LC medium containing one or more stabilisers of formula I and to an LC display of the VA-, IPS or FFS type comprising said stabilised liquid crystal medium.

Abstract: The invention relates to compounds of the formula I, and to a liquid-crystalline medium, preferably having a nematic phase and negative dielectric anisotropy, which comprises a) one or more compounds of the formula I and b) one or more compounds of the formula II in which the parameters have the respective meanings indicated in Claim 1, to the use thereof in an electro-optical display, particularly in an active-matrix display based on the VA, ECB, PALC, FFS or IPS effect,

Abstract: Disclosed are compounds of the formula I, liquid-crystalline media comprising the compounds of formula I, and the use of these liquid-crystalline media in liquid-crystal displays.