Liquid crystal display element having a nonconducting layer of particular index of refraction

Abstract

A liquid crystal display element of the type having a pair of transparent electrodes consisting of a pair of glass substrates and liquid crystal charged in the space therebetween and which is completely free from a so called "touch", a phenomenon that can destroy the orientation films of the element, is disclosed. According to the invention, a liquid crystal display element of the type as described above is provided with a first insulating film made of a single crystal material having a refractive index greater than that of the transparent electrodes of the glass substrate of the crystal display element. The first insulating film is disposed between one of the transparent electrodes and its corresponding orientation film and a second insulating film made of a single crystal material having a refractive index smaller than that of the transparent electrodes between the other electrode and its corresponding film. The insulating film are so selected that the average value of the refractive index of said first insulating film and that of said second insulating film is substantially equal to the refractive index of the transparent electrodes.

Dependencies are inferred from the claim text.