摘要:
Des alcools tertiaires de formule (I), où R1, A1, Z1, m, A2, Q1, Q2, Q3 et Z2 ont les significations de la revendication 1, et procédé pour la production desdits alcools.
摘要:
Super-twist liquid crystal displays with outstanding properties are obtained if the nematic liquid crystal mixture is based on components selected from among group A consisting of compounds of the formulae IIa to IIk.
摘要:
A liquid crystalline medium consists essentially of (a) 5-65 wt.% of a constituent A consisting of two or more compounds of group A, (b) 20-95 wt.% of a constituent B consisting of two or more compounds of group B, and (c) 0-40 wt.% of a constituent C consisting of one or more compounds with a clarification temperature above 170 °C. R, X and Y independently have the following meanings: R in each case stands for alkyl, oxalkyl, halogenalkyl or alkenyl with up to 7 carbon atoms, X stands for F, Cl, CHF2, CF3, OCHF2 or OCF3 and Y stands for H, F or Cl.
摘要:
The invention relates to a liquid crystalline medium based on a mixture of polar compounds with a positive dielectric anisotropy which contains one or more compounds of the general formula (I) in which: L is H or F; X is F, C1, CF3, OCF3 or OCHF2 and R is alkyl, oxa-alkyl, fluoroalkyl or alkenyl with up to 7 c atoms.
摘要:
The invention relates to a liquid crystalline medium based on a mixture of polar compounds with a positive dielectric anisotropy which contains one or more compounds of formula (I) in which: Hal is fluorine or chlorine and R is alkyl, oxa-alkyl, fluoroalkyl or alkenyl with up to 7 C atoms.
摘要:
The invention concerns trifluoromethylcyclohexane derivatives of the formula (I) in which R, A1, A2, (a), Z1, Z2 and o are as defined in claim 1. These compounds can be used as components of liquid-crystal media for electro-optical display elements, in particular matrix liquid-crystal displays.
摘要:
Super-twist liquid crystal displays with outstanding properties are obtained if the nematic liquid crystal mixture is based on components selected from among group A consisting of compounds of the formulae IIa to IIk.
摘要:
The invention concerns a matrix liquid crystal display with integrated non-linear elements containing a liquid crystal mixture with a particularly high specific resistance.
摘要:
Disclosed are difluorobenzonitriles of formula (I), in which Y is alkyl, alkenyl, alkoxy, oxaalkyl or alkenyloxy with 1-12 C-atoms and Q is a residue selected from the following: (a), (b), (c), (d), (e), (f), (g), (h), (i), (j) and (k), which are suitable for use as components of liquid-crystal media.
摘要:
Substituted phenyltrifluormethylethers having the formula (I): R1-(A1-Z1)n-A2-Z2-A3-OCF3, in which R1, A1, Z1, n, A2, Z2 and A3 have the meaning described in the first claim, are useful as components of liquid crystal phases.