摘要:
The invention relates to a liquid-crystalline medium based on a mixture of polar compounds, characterised in that it comprises one or more compounds of the formula I and one or more compounds of the formula IA in which R1, R1A, X, XA, L1-7, A1, Z1 and n have the meanings indicated in Claim 1.
摘要:
The present invention relates to dielectrically positive liquid-crystalline media comprising one or more compounds of the formula I in which the parameters have the meaning indicated in the specification, and optionally one or more compounds selected from the group of the compounds of the formulae II and III in which the parameters have the meaning indicated in the specification, and optionally one or more compounds of the formula IV in which the parameters have the meaning indicated in the specification, and to liquid-crystal displays containing these media, especially to active-matrix displays and in particular to TN, IPS and FFS displays.
摘要:
The invention relates to liquid-crystalline compounds of the formula I in which R1, R2, A1, A2, A3, A4, Z1, Z2, Z3, V, a, b and c have the meanings indicated in Claim 1, and to liquid-crystalline media comprising at least one compound of the formula I, and to electro-optical displays containing a liquid-crystalline medium of this type.
摘要:
The instant invention relates to electro-optical switching elements and displays comprising them. In particular, it relates to electro-optical switching elements comprising one or more light conversion means capable to convert light (e.g. ambient light and/or light from a backlight system), wherein each of said light conversion means o is capable to convert the state of polarization of the light from non-polarized light either to linear polarized light or to circular polarized light and, at the same time, o optionally is capable to shift the wavelength of the light to longer values and—at least one of said conversion means o is capable to shift the wavelength of the light to longer values and—a liquid crystal material, which is capable of switching, —one or more means to polarize light, and—optionally a means for illumination such as e.g. a backlight.
摘要:
The present invention relates to benzochromene derivatives of the formula I where the various parameters have the meaning indicated in the text, and to liquid-crystal media which comprise these compounds, and to the use of the media in electro-optical displays, in particular in TN, OCB, LCOS and/or IPS-LCDs, and to the use of the compounds and physiologically acceptable derivatives thereof as therapeutic active ingredients.
摘要:
The present invention relates to chemical compounds containing five or more benzene rings arranged in a linear manner and two bridging units between these rings, where at least one of these units represents a —CF2O— bridge. The invention additionally relates to liquid-crystalline media and to high-frequency components comprising these media, in particular antennae, especially for the gigahertz range.
摘要:
The invention relates to a liquid-crystalline medium having a nematic phase and negative dielectric anisotropy which comprises a) one or more compounds of the formula I b) 5.0·10−3% by weight to 1.0% by weight of one or more compounds selected from the group of the compounds of the formulae II-A to II-F: and c) 5.0·10−4% by weight to 1.0% by weight of one or more compounds which contain one, two or more groups of the formula II-G in which the parameters have the 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, and to displays of this type, and to the joint use of one or more of the compounds selected from the group of the compounds of the formulae II-A to II-F with one or more compounds which contain the group II-G for the stabilisation of a liquid-crystalline medium which comprises one or more compounds of the formula I.
摘要:
The invention relates to liquid-crystalline compounds of the formula I in which R1, R2, A1, A2, A3, A4, Z1, Z2, Z3, V, a, b and c have the meanings indicated in Claim 1, and to liquid-crystalline media comprising at least one compound of the formula I, and to electro-optical displays containing a liquid-crystalline medium of this type.
摘要:
The invention relates to liquid-crystalline compounds of the formula I and to a liquid-crystalline medium based on a mixture of polar compounds, characterised in that it comprises one or more compounds of the formula I in which R1, X, L1, L2 and L3 have the meanings indicated in Claim 1.
摘要:
Dielectrically positive liquid crystalline media comprising a dielectrically neutral component, component A, comprising a dielectrically neutral compound of formula I wherein the parameters have the meaning given in the specification, in a high concentration, and a dielectrically positive component, component B, comprising one or more dielectrically positive compounds having a dielectric anisotropy of more than 3, are described. Also described are liquid crystal displays comprising these media, especially to active matrix displays and in particular TN and to IPS displays.