| abstract |
The present invention relates to a liquid crystalline mixture comprising a) 1-25% by weight of at least one compound of the formula I b) 5-80% by weight of at least one compound of the formula II c) and optionally 1-20% by weight of at least one chiral compound with a HTP of <=20 mum, wherein R<SUP>11</SUP>, A<SUP>11</SUP>, Z<SUP>11</SUP>, A<SUP>12</SUP>, Z<SUP>12</SUP>, L<SUP>11</SUP>, L<SUP>12</SUP>, L<SUP>13</SUP>, L<SUP>14</SUP>, Z<SUP>13</SUP>, A<SUP>13</SUP>, Z<SUP>14</SUP>, A<SUP>14</SUP>, X<SUP>11</SUP>, a, b, c, d, R<SUP>12</SUP>, A<SUP>1</SUP>, Z<SUP>1</SUP>, A<SUP>2</SUP>, Z<SUP>2</SUP>, A<SUP>3</SUP>, L<SUP>1</SUP>, L<SUP>2</SUP>, X<SUP>12</SUP>, m and n have the meanings given in claim 1 and their use in TFT, TN, IPS applications and expecially for devices utilizing electro-optical effects in an optically isotropic state. |