Liquid crystal material and display device using same.

摘要

Super twisted nematic liquid crystal materials contain. at least one double chiral nematic liquid crystal compound of the following general formula: <CHEM> in which R1 and R2 may be the same or different and each represents a methyl group or an ethoxy group, m is an integer of 2 to 12, n is an integer of 2 to 12, and the symbols *<1> and *<2> each denote a chiral centre of an (S)- or (R)-modification of the compound, and liquid crystal display devices use such liquid crystal materials. The display devices can provide a high information content of 640 x 400 dots or more without cross-talk among the images.