Abstract: The new media exhibit a ferroelectric nematic phase preferably at ambient temperature. They preferably comprise one or more compounds selected from the group of compounds of formulae IA, IB and IC, in which the variable groups have the meanings indicated in the text and in the claims. Use of the media for providing ferroelectric nematic materials and a method of operation of an electro-optical device are presented. The media may be useful for energy-saving displays and electrical appliances.

Abstract: New compounds and their mixtures enable the formation of the ferroelectric nematic liquid crystalline phase at ambient temperature. Compounds of the formula I are presented, in which the variable groups have the meanings indicated in claim 1. Liquid crystal media comprise at least one compound of the formula I.

Abstract: A liquid-crystalline medium with one or more compounds of the formula IA and, one or more compounds of formula BS 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-poli-VA, PS-TN, polymer stabilized SA-VA or polymer stabilized SA-FFS display.

Abstract: The new LC media exhibit a ferroelectric nematic phase at ambient temperature. They comprise at least one or more compounds selected from each of formula IA, of formula IB and of the group of formulae IC-1/IC-2/IC-3, in which the variable groups have the meanings indicated in the text and in the claims. The mixtures are useful for electro-optics, electronics, electro-mechanic and other applications for materials with very high dielectric permittivity and other energy-saving applications.

Abstract: The present invention relates to a compound of the general formula I in which the occurring groups and parameters have the meanings indicated in claim 1, to the use thereof in liquid-crystalline or mesogenic media and to liquid-crystalline or mesogenic media comprising these derivatives.

Abstract: An OLED waveguide assembly including an organic light emitting diode assembly, a waveguide layer and a substrate. The organic light emitting diode assembly is separated from the waveguide layer by a spacer layer, and the organic light emitting diode assembly has a maximum emission at a wavelength of 470 nanometers. The waveguide layer is nanostructured. The substrate has pixel-dependent nanostructures with a lattice constant of approximately 400±50 nanometers, suitable for the emissions of the waveguide layer. The waveguide layer or a layer situated in front of the waveguide has the function of a wavelength converter having a maximum absorption at 470 nanometers and having a maximum emission at 620 nanometers. The lattice structure does not match the emission of the installed OLED. Ideally, all of the primary light is converted or any residual is filtered out. Further an OLED-waveguide assembly production method.

Abstract: The invention relates to liquid-crystalline media which can be used, in particular, for electro-optical displays having active-matrix addressing based on the ECB effect and for IPS (in-plane switching) displays or FFS (fringe field switching) displays.

Abstract: The invention relates to a liquid-crystalline medium which comprises at least one compound of the formula I, wherein the radicals R11, L1, L2, n and A are as defined herein, and to the use thereof for an active-matrix display, in particular based on the VA, PSA, PS-VA, PA-VA, PALC, FFS, PS-FFS, IPS or PS-IPS effect.

Abstract: Liquid-crystalline media which can be used, in particular, for electro-optical displays having active-matrix addressing based on the ECB effect and for IPS (in-plane switching) displays or FFS (fringe field switching) displays.

Abstract: The invention relates to a liquid-crystalline medium comprising one or more compounds of the formula IA and, one or more compounds of formula BS wherein the occurring groups have the meanings indicated in claim 1, and to 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: The present invention relates to compounds of formula M in which RM has the meaning indicated in claim 1, to liquid crystal mixture comprising the same, to the use of these liquid-crystal media, in particular in components for high-frequency technology, and to components of this type which contain media according to the invention, and to the production and use of these components. The components according to the invention are suitable, in particular, as phase shifters in the microwave and millimetre wave region, for microwave and millimetre wave array antennae and very particularly for so-called tunable “reflectarrays”.

Abstract: The present invention relates to a compound of the general formula I in which the occurring groups and parameters have the meanings indicated in claim 1, to the use thereof in liquid-crystalline or mesogenic media and to liquid-crystalline or mesogenic media comprising these derivatives.

Abstract: The present invention relates to polymerisable compounds, to processes and intermediates for the preparation thereof, to liquid-crystal (LC) media comprising them, and to 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 polymer sustained alignment type.

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: Chiral compounds of formula I wherein the paramters have the meaning given in claim 1, liquid crystal mixtures comprising at least one chiral compound of formula I, to chiral linear or crosslinked liquid crystal polymers obtainable by polymerizing a polymerizable mixture comprising at least one chiral compound of formula I, to the use of chiral compound of formula I and mixtures and polymers obtained thereof in liquid crystal displays, active and passive optical elements, adhesives, synthetic resins with anisotropic mechanical properties, cosmetic and pharmaceutical compositions, diagnostics, liquid crystal pigments, for decorative and security applications, nonlinear optics, optical information storage or as chiral dopants, and a liquid crystal display comprising a mixture comprising at least one chiral compound of formula I.

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.

Abstract: The present invention relates to compounds of formula M in which RM has the meaning indicated in claim 1, to liquid crystal mixture comprising the same, to the use of these liquid-crystal media, in particular in components for high-frequency technology, and to components of this type which contain media according to the invention, and to the production and use of these components. The components according to the invention are suitable, in particular, as phase shifters in the microwave and millimetre wave region, for microwave and millimetre wave array antennae and very particularly for so-called tunable “reflectarrays”.

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.

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.

Abstract: A side tensioning assembly for retaining screen media to the side plates of a vibrating-type screening machine includes a support structure for supporting the screen media and a tensioning rail mountable to at least one side plate. At least one bolt assembly is provided for fastening the tensioning rail to at least one of the side plates. Each bolt assembly including a bolt connectable to the tensioning rail, at least one of side plates and at least one bolt engaging structure on a surface of the side plate. Each bolt engaging structure includes a cutout. The cutout is sized larger than the bolt but smaller than a nut. The movable plate has a bolt-securing position and a bolt-releasing position.