摘要:
Liquid-crystalline medium having a dielectric anisotropy Δε of ≧3, comprising compounds of the general formula (I), in which R is as defined herein, are suitable for use as liquid-crystalline media for, e.g., IPS, MLC, TN or STN displays, but in particular for LCoS displays. The media have very high specific resistance values, low threshold voltages, short response times and high birefringence values Δn, while maintaining other boundary conditions.
摘要:
A liquid-crystalline medium comprises one or more compounds of the general formula (I) CF3O-a-b-c-F (I) in which a, b, c may each denote, independently of one another, and further liquid-crystalline compounds.
摘要:
A liquid-crystalline medium of positive dielectric anisotropy and high optical anisotropy, comprising one or more compounds of the formula I and one or more compounds of the formulae II and/or III and its use in electro-optical displays and projection systems, in particular LCoS™ displays and displays based on a birefringence effect, such as OCB displays, is described.
摘要:
Disclosed are fluorostilbene compounds of formula I, liquid-crystal media which comprise these compounds, the use of the media in electro-optical displays, in particular in VAN LCDs, and a process for the preparation of these compounds.
摘要:
The invention relates to a liquid crystalline compound of the formula I wherein X1 and R1 are defined as in claim 1. The invention further relates to a liquid crystalline medium based on a mixture of polar compounds of positive dielectric anisotropy containing one or more compounds of formula I and its use in electrooptical displays and projection systems, in particular reflective displays and displays based on a birefringence effect, such as OCB displays.
摘要:
The present invention relates to liquid-crystalline compounds containing an O-heterocyclic ring, three partially fluorinated benzene rings and a —CF2O— bridge between the rings. In addition, the invention relates to liquid-crystalline media prepared therewith and to liquid-crystal display devices (LC displays) containing these media.
摘要:
Disclosed are a liquid-crystalline medium of negative dielectric anisotropy based on a mixture of polar compounds, which contains at least one compound of formula IA and at least one compound of formulae IB, IC and/or ID and the use thereof for an active-matrix display, in particular based on the ECB, PALO, FFS or IPS effect.
摘要:
The invention relates to a liquid-crystalline medium having negative dielectric anisotropy which comprises at least one compound of the formula I in which R1, R1* and a have the meanings indicated in Claim 1, and to the use thereof for an active-matrix display, in particular based on the VA, PS-VA, PALC, FFS or IPS effect.
摘要:
Disclosed are a liquid-crystalline medium of negative dielectric anisotropy based on a mixture of polar compounds, which contains at least one compound of formula IA and at least one compound of formulae IB, IC and/or ID and the use thereof for an active-matrix display, in particular based on the ECB, PALC, FFS or IPS effect.
摘要:
The present invention relates to liquid-crystal (LIQUID CRYSTALLINE) media comprising polymerizable compounds, in particular for use in LIQUID CRYSTALLINE displays of the PS (polymer stabilized) or PSA (polymer sustained alignment) type, and to PS(A) displays containing LIQUID CRYSTALLINE media of this type.