The present invention relates to a compound of formula GF ##STR00001##
in which the occurring groups and parameters have the meanings defined in claim 1, to a liquid crystal medium comprising a compound of formula GF and to high-frequency components comprising these media, especially microwave components for high-frequency devices, such as devices for shifting the phase of microwaves, tunable filters, tunable metamaterial structures, and electronic beam steering antennas, e.g. phased array antennas.

The present invention relates to an LC medium comprising two or more polymerizable compounds, at least one of which contains a substituent comprising a tertiary OH group, to its use for optical, electro-optical and electronic purposes, in particular in LC displays, especially in LC displays of the PSA (polymer sustained alignment) or SA (self-aligning) mode, to an LC display of the PSA or SA mode comprising the LC medium, and to a process of manufacturing the LC display using the LC medium, especially an energy-saving LC display and energy-saving LC display production process.

Liquid-crystalline (LC) media or LC materials and energy saving liquid-crystal displays (LCDs) containing these media, especially gaming displays and AR/VR headsets addressed by an active matrix and in particular to LC displays of the TN, PS-TN, STN, TN-TFT, OCB, IPS, PS-IPS, FFS, HB-FFS, XB-FFS, PS-FFS, SA-HB-FFS, SA-XB-FFS, polymer stabilised SA-HB-FFS, polymer stabilised SA-XB-FFS, positive VA or positive PS-VA type.

Liquid-crystalline (LC) media having positive dielectric anisotropy and liquid-crystal displays (LCDs) containing these media, especially displays addressed by an active matrix and in particular LC displays of the TN, PS-TN, STN, TN-TFT, OCB, IPS, PS-IPS, FFS, HB-FFS, XB-FFS, PS-FFS, SA-HB-FFS, SA-XB-FFS, polymer stabilised SA-HB-FFS, polymer stabilised SA-XB-FFS, positive VA or positive PS-VA type.

An LC medium (as a subcategory of liquid crystal material) comprising two or more polymerizable compounds, its use for optical, electro-optical and electronic purposes, in particular in LC displays, especially in LC displays of the PSA (polymer sustained alignment) or SA (self-aligning) mode, an LC display of the PSA or SA mode comprising the LC medium, and a process of manufacturing the LC display using the LC medium, especially an energy-saving LC display and energy-saving LC display production process.

A liquid-crystal (LC) material comprising a compound of formula I and a compound of formula CPY and one or more compounds of formulae IIA, IIB, IIC and IID wherein the compound of the formula CPY is excluded from the formula IIB, having negative dielectric anisotropy and the use thereof for optical, electro-optical and electronic purposes, such as for example in LC displays, in particular energy saving displays based on the ECB, IPS or FFS effect.

A liquid crystal element including: two substrates having a transparent conductive layer formed thereon, the substrates being arranged so that the transparent conductive layers face each other, and a liquid crystal-polymer composite film sandwiched between the two substrates having a transparent conductive layer, wherein the liquid crystal-polymer composite film includes a polymer matrix and a liquid crystal composition surrounded by the polymer matrix, the liquid crystal composition contains a liquid crystal component and a dichroic dye, the liquid crystal component has positive dielectric constant anisotropy, and has an NI point of 110 C. or higher and 150 C. or lower, the liquid crystal component has a refractive index anisotropy of 0.01 or more and 0.1 or less, and the liquid crystal-polymer composite film can be switched between a transparent state and a colored state by applying a voltage.

Liquid-crystalline (LC) media having positive dielectric anisotropy and liquid-crystal displays (LCDs) containing these media, especially displays addressed by an active matrix and in particular LC displays of the TN, PS-TN, STN, TN-TFT, OCB, IPS, PS-IPS, FFS, HB-FFS, XB-FFS, PS-FFS, SA-HB-FFS, SA-XB-FFS, polymer stabilised SA-HB-FFS, polymer stabilised SA-XB-FFS, positive VA or positive PS-VA type.