Liquid crystal display devices

Claim 1

An electroresponsive element for a liquid crystal display device comprising a first substrate, first and second comb shaped electrodes disposed on a common surface of said first substrate to correspond to a desired pattern with the teeth of said first and second comb shaped electrodes interleaved with each other, a second substrate spaced apart a predetermined distance from said first and second electrodes, a counter electrode supported by said second substrate to confront said first and second electrodes, a field effect type liquid crystal interposed between said first and second substrates, the electrode surfaces of said substrates being neutral respecting orientation of the molecules of said liquid crystal, and means for impressing a direct voltage across said first and second electrodes to provide initial orientation of the axes of the molecules of said liquid crystal, a source of high frequency alternating current, means operable for connecting said source of alternating current across said counter electrode and said first and second electrodes joined as a common electrode, said means for impressing and said means operable being adapted for mutually exclusive application of said direct voltage and said alternating current.