Liquid crystal display device

摘要

A liquid crystal display device comprising: a pair of substrates disposed in an opposed relation each having an electrode formed in a selected pattern on the opposed surface thereof, and an orientation film formed over the entire opposed surface including the electrode; a liquid crystal layer sandwiched between the substrates; and a driver means for shifting longitudinal molecular axes of the liquid crystal in the liquid crystal layer; said liquid crystal layer comprising a composition of a nematic liquid crystal having a splay elastic constant K11 and a twist elastic constant K22, and the ratio K11/K22 being between which is not greater than 1; in which said nematic liquid crystal has a bistability such that the longitudinal molecular axes thereof are shifted from a first orientation state to a second orientation state within a plane generally parallel with respect to said substrates when a voltage is applied across said electrodes from said driver means, and are kept in the second orientation state when the application of the voltage is stopped.