ELECTRO-OPTIC SYSTEMS IN WHICH AN ELECTROPHORETIC-LIKE OR DIPOLAR MATERIAL IS DISPERSED THROUGHOUT A LIQUID CRYSTAL TO REDUCE THE TURN-OFF TIME

摘要

A system for transforming an optically negative liquid crystalline mesophase composition to an optically positive liquid crystalline mesophase composition by an applied electrical field, and imaging compositions which facilitate the relaxation of the transformed optically positive composition into the initial optically negative state. The invention also encompasses imaging systems wherein this electrical field-induced transition images a liquid crystalline imaging composition.