| abstract |
The present invention relates to cyclopenta [b] naphthalene derivatives of the general formulas (I) to (V) wherein B, Z, A, n, R, X, L, E and G have the meaning defined in the claims, their use in liquid-crystalline media, liquid-crystalline media containing at least one of these cyclopenta [b] naphthalene derivatives and electro-optical display elements containing them liquid crystalline media. |