| 摘要 |
PURPOSE: Provided is a liquid medium based on polar compound having negative dielectric anisotropic property to produce MLC display based on an ECB effect to show only a small degree of defect of conventional technique or no defect at all, preferably an extremely high resistance value and a low threshold voltage at the same time. CONSTITUTION: The liquid crystal medium is characterized in that the liquid crystal medium comprises a mixture of polar compounds having negative induction anisotropy as a base material and contains one or more kinds of compounds of general formula(1) (R1 is an alkoxy group having C12). The medium further includes at least one of the compounds having the general formula (2) or (3)(wherein m is 1 or 2; R2 to R4 are alkyl or alkenyl groups independently having less than C12, provided that CH2 group may be substituted by -O-, -S- and/or -C≡C-; and A ring is 1,4-trans-cyclohexylene or 1,4-phenylene). |
