Mesogenic compound, liquid-crystal medium and liquid crystal display
AssigneeMerck Patent GmbH
InventorsMichael Wittek, Matthias Bremer, Andreas Taugerbeck
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Abstract
Mesogenic compounds of formula I-Z are suitable for use in mesogenic media. Such mesogenic media can exhibit a blue phase and comprise component A, consisting of one or more compounds of formula I-Z, and, optionally a component B, consisting of one or more compounds selected from the group of compounds of formulae I-M and I-U, wherein the parameters are as defined herein. The media can also be stabilized by a polymer. The media can be used in electro-optical light modulation elements and displays.
Claims17
A mesogenic compound of formula I-Z
- wherein
- R1 is n-alkyl or n-alkoxy with 1 to 9 C-atoms, or alkenyl, alkenyloxy or alkoxyalkyl with 2 to 9 C-atoms,
- L1 is H or F, and
- X1 is F or CF3.
A mesogenic medium exhibiting a blue phase, comprising a component A, consisting of one or more compounds of formula I-Z
- wherein
- R1 is n-alkyl or n-alkoxy with 1 to 9 C-atoms, or alkenyl, alkenyloxy or alkoxyalkyl with 2 to 9 C-atoms,
- L1 is H or F, and
- X1 is F or CF3.
Dependencies are inferred from the claim text.