Liquid crystal electro-optic device with two materials different in refractive index dispersed in the liquid crystal

摘要

A liquid crystal device comprising a liquid crystal electro- optic layer supported between a pair of substrates furnished with electrodes, provided that at least one of said substrates is transparent, characterized by that said liquid crystal electro-optic layer comprises a liquid crystal material, a first transparent material, and a second transparent substance whose refractive index is different from those of the liquid crystal material and the first transparent material is disclosed. The liquid crystal electro-optic layer may otherwise comprise a liquid crystal material and a mixed transparent substances provided that the refractive index thereof is controlled to be about the same as that of the liquid crystal material. The device has improved display contrast and is capable of an increase light transmittance to 4 times as large as that of a conventional one.