| 摘要 |
A process for the stabilisation of a Liquid crystal (LC) mixture with negative dielectric anisotropy characterised in that one or more stabilisers of formula I Ra-A1-(Z1-A2)m1-Rb I in which Ra, Rb, A1, A2, Z1 and m1 have the meanings given in claim 1, are added to the LC mixture in a total amount of £0.1% based on the total mixture. Also shown is an LC medium containing one or more stabilisers of formula I and a LC display of the VA-, IPS or FFS type comprising said stabilised liquid crystal medium. |
