The invention relates to a liquid-crystalline medium which comprises at least one compound of the formula I,

##STR00001##

in which
R.sup.1, R.sup.1*, Z.sup.1, Z.sup.2 and L.sup.1-3 have the meanings defined herein,
and to the use thereof for an active-matrix display, in particular based on the VA, PSA, PS-VA, PALC, FFS, PS-FFS, PS-IPS or IPS effect.

The invention relates to a liquid-crystalline medium which comprises at least one compound of the formula I,

##STR00001## in which R.sup.1, R.sup.1*, Z.sup.1, Z.sup.2 and L.sup.1-3 have the meanings defined herein, and to the use thereof for an active-matrix display, in particular based on the VA, PSA, PS-VA, PALC, FFS, PS-FFS, PS-IPS or IPS effect.

A liquid-crystalline medium which contains at least one compound of the formula I,

##STR00001##

and at least one compound of the formula IA

##STR00002##

in which R.sup.1, R.sup.1*, R.sup.1A, R.sup.1A*, L.sup.1 and L.sup.2 have the meanings indicated in Claim 1. Uses of the medium in an active-matrix display or passive matrix display, for example based on the VA, PSA, PS-VA, PVA, MVA, PM-VA, PALC, FFS, UB-FFS, PS-FFS, IPS or PS-IPS effect.

The invention relates to compounds of the formula I

##STR00001##

in which R.sup.1 and X.sup.1 have the meanings indicated in claim 1, and to a liquid-crystalline medium comprising at least one compound of the formula I, and to the 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.

There is provided a composition containing a discotic liquid crystal compound, a chiral agent, and a surfactant which can form a light reflecting layer formed by fixing a cholesteric liquid crystalline phase, which exhibits excellent durability under a hot and humid environment and excellent heat resistance, and has few alignment defects; a light reflecting film; a luminance-improving film; a backlight unit; and a liquid crystal display device.

The invention relates to bimesogenic compounds of formula I

##STR00001##

wherein R.sup.11, R.sup.12, MG.sup.11, MG.sup.12, X.sup.11, X.sup.12 and Sp.sup.1 have the meaning given in claim 1, to the use of bimesogenic compounds of formula I in liquid crystal media and particular to flexoelectric liquid crystal devices comprising a liquid crystal medium according to the present invention.

The present invention relates to a liquid crystalline medium comprising a polymerizable compound, to a process for its preparation, to its use for optical, electro-optical and electronic purposes, in particular in liquid crystalline displays, especially in a liquid crystalline display of the polymer sustained alignment (PSA) type, and to a liquid crystalline display, especially a PSA display, comprising it.

The present disclosure provides curable compositions comprising one or more of polymerizable liquid crystalline compounds or polymerizable polyesters with disrupted crystallinity, as well as polymeric materials formed from the curable compositions. Further provided herein are methods of producing the compositions and using the same for the fabrication of medical devices, such as orthodontic appliances.

A liquid crystal medium having negative dielectric anisotropy and containing one or more compounds of formulae B and C and one or more compounds of formula G ##STR00001## and the use thereof for an active-matrix display, in particular based on the VA, SA-VA, IPS, PS-IPS, FFS, PS-FFS, UB-FFS or PS-UB-FFS effect.

The present disclosure provides a liquid crystal composition and a display panel using the same. The liquid crystal composition includes a first compound represented by the following formula (I-A) or formula (I-B), a second compound represented by the following formula (II-A) or formula (II-B), a third compound represented by the following formula (III-A) or formula (III-B), and a fourth compound represented by the following formula (IV).

##STR00001##