申请人:Lietzau Lars
公开号:US20110253934A1
公开(公告)日:2011-10-20
The invention relates to mesogenic tetrahydropyran compounds having at least four rings, of the formula I
in which R
1
, A
1
, A
2
, X
1
, L
1
, L
2
, m and n have the meanings indicated in Claim
1
, and to a process for the preparation thereof, to the use thereof in liquid-crystalline media, to liquid-crystalline media comprising at least one compound of the formula I, and to electro-optical displays containing a liquid-crystalline medium of this type.