| 摘要 |
<p>Liquid crystal medium (A) comprises one or more polymerizable compound and one or more phenyl-cyclohexane compound (I). Liquid crystal medium (A) comprises one or more polymerizable compound and one or more heterocyclic compound of formula (I). ring A : cyclohexane, phenyl or a substituted phenyl compound of formula (a); a : 0 or 1; L 1>, L 2>H, F (both preferred) or Cl; R 1>-(CH 2) m-CH=CH-C nH 2 n + 1; R 2>1-12C alkyl, where one or two non-adjacent CH 2-group is substituted by -O-, -CH=CH-, -CO-, -OCO- or -COO-, the O atoms are not connected directly, and terminal -CH=CH 2-groups are excluded; and either m : 0-6; or n+m : less than or equal to 6. Provided that when a is 0 then the ring A is cyclohexylene. Independent claims are included for: (1) an electro-optical display comprising (A) as a dielectric; and (2) the preparation of a medium comprising mixing (I), one or more polymerizable compound and optionally a further compound or additive. [Image].</p> |
