Liquid-crystalline medium
AssigneeMerck Patent GmbH
InventorsHideo Ichinose, Yuka Ikedo, Yasuyoshi Namiki, Shinji Nakajima, Akiko Takashima, Kazuaki Tarumi, Brigitte Schuler, Volker Reiffenrath
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Abstract
The invention relates to a liquid-crystalline medium based on a mixture of polar compounds having negative dielectric anisotropy, which contains at least one compound of formula I ##STR1## and at least one compound of formula II ##STR2## wherein R.sup.1 is alkyl or alkoxy with 1 to 8 C atoms or alkenyl with 2 to 7 C atoms, R.sup.2 is alkenyl with 2 to 7 C atoms, R.sup.3 and R.sup.4 are each independently alkyl or alkoxy with 1 to 8 C atoms, ##STR3## m is 0 or 1.
Claims19
Liquid-crystalline medium based on a mixture of polar compounds having negative dielectric anisotropy, which contains at least one compound of formula I ##STR19## and at least one compound of formula II ##STR20## wherein R.sup.1 is alkyl or alkoxy with 1 to 8 C atoms or alkenyl with 2 to 7 C atoms
- R.sup.2 is alkenyl with 2 to 7 C atoms,
- R.sup.3 and R.sup.4 are each independently alkyl or alkoxy with 1 to 8 C atoms, ##STR21## m is 0 or 1.
Dependencies are inferred from the claim text.