Patent ID: 8755022
Filing Date: 2014-06-17
Classification: G02F

Abstract:
1. A liquid crystal display cell with fast response and continuous gray scale, comprising: a chiral smectic liquid crystal layer positioned between two substrates, the liquid crystal layer comprising helix structures having helix pitch that is less than the thickness of the liquid crystal layer; at least one polarizer positioned outside of the substrates; and a voltage source, configured to apply a driving voltage to the liquid crystal display cell, wherein amplitude of the driving voltage is less than critical voltage amplitude for helix unwinding of the helix structures of the liquid crystal layer; wherein a principal optical axis of the liquid crystal layer coincides with helical axes of the helix structures of the liquid crystal layer at a steady state without application of the driving voltage, and wherein the helical axes deviated from the principal optical axis under application of the driving voltage so as to achieve the continuous grayscale.