The present invention relates to liquid-crystalline media comprising one or more compounds of formula T

##STR00001##

and one or more compounds selected from the group of compounds of formulae I, II and III,

##STR00002##

in which the parameters have the meaning indicated in Claim 1, and to components comprising these media for high-frequency technology, in particular phase shifters and microwave array antennas.

The present invention provides a compound having an excellent amount of change in HTP and an excellent HTP saturation rate during exposure, and a liquid crystal composition including the compound. The compound of the present invention is a compound represented by General Formula (A).

(Y).sub.n-G-(X).sub.m   (A)

G represents a group represented by General Formula (B-1) or a group represented by General Formula (B-2), * represents a bonding position, and X and Y represent a predetermined group.

##STR00001##

The present invention relates to liquid-crystalline media comprising one or more pleochroic dyes and one or more compounds selected from the group of compounds of formulae I, II and III,

##STR00001##

in which the parameters have the meaning indicated in Claim 1, and to components comprising these media for high-frequency technology, in particular phase shifters and microwave array antennas.

The present invention relates to liquid-crystalline media comprising—one or more compounds of formulae CC and/or CP and—one or more compounds selected from the group of compounds of formulae (I), (II) and (III), in which the parameters have the meaning indicated in Claim 1, and to components comprising these media for high-frequency technology, in particular phase shifters and microwave array antennas.

##STR00001##

The invention relates to a polymerisable LC material comprising at least one di- or multireactive mesogenic compound and at least one compound of formula I,

##STR00001##

in which the parameter R.sup.1, A.sup.1, Z.sup.1, Z.sup.2, n, Sp, P, p1, p2, L.sup.1, L.sup.2, r1, r2, m and R.sup.2 have one of the meanings as given in claim 1. Furthermore, the present invention relates also to a method for the preparation of a polymerisable LC material, a polymer film obtainable from the corresponding polymerisable LC material, to a method of preparation of such polymer film, and to the use of such polymer film and said polymerisable LC material for optical, electro-optical, decorative or security devices.

The present invention relates to components for high-frequency technology, 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) comprising a liquid-crystalline medium, and to the liquid-crystalline medium used therein, wherein the liquid crystal medium comprises one or more compounds of formula S

##STR00001##

as defined in claim 1.

The present invention relates to liquid-crystalline media comprising one or more compounds of formula T ##STR00001##
and one or more compounds selected from the group of compounds of formulae I, II and III, ##STR00002##
in which the parameters have the meaning indicated in Claim 1, and to components comprising these media for high-frequency technology, in particular phase shifters and microwave array antennas.

The present invention relates to liquid-crystalline media comprising one or more pleochroic dyes and one or more compounds selected from the group of compounds of formulae I, II and III, ##STR00001##
in which the parameters have the meaning indicated in Claim 1, and to components comprising these media for high-frequency technology, in particular phase shifters and microwave array antennas.

Subject It is to provide a polymerizable compound having a high polymerization reactivity, a high conversion yield and a high solubility in a liquid crystal composition, a polymerizable composition including this compound, a liquid crystal composite prepared from this polymerizable composition and a liquid crystal display device containing this composite. Means for solving the Subject A compound represented by formula (1), the liquid crystal composition and the liquid crystal display device. ##STR00001##
In the formula, for example, ring A.sup.1, ring A.sup.2 and ring A.sup.4 are phenylene or cyclohexylene; Sp.sup.1 and Sp.sup.2 are a single bond or alkylene having 1 to 6 carbons; Z.sup.1 and Z.sup.2 are CHCH or CC; a is 1, b is 0; and P.sup.1 and P.sup.2 are a polymerizable group.

The present invention provides a compound having an excellent amount of change in HTP and an excellent HTP saturation rate during exposure, and a liquid crystal composition including the compound. The compound of the present invention is a compound represented by General Formula (A).
(Y).sub.n-G-(X).sub.m (A) G represents a group represented by General Formula (B-1) or a group represented by General Formula (B-2), * represents a bonding position, and X and Y represent a predetermined group. ##STR00001##