Dynamic -relaxation driving means for cholesteric liquid crystal displays

摘要

A low power consumption and fast speed driving means for cholesteric liquid crystal displays (ChLCDs). The novelty of the driving means is based upon the dynamic relaxation process of ChLCD from field induced nematic phase to the stable cholesteric phases, during which both the planar state or focal conic state can be formed simultaneously and the information can also be erased and addressed simultaneously. The driving means only consists of one erasing pulse that is higher than the phase change voltage and one addressing pulse that is lower than the phase change voltage.