Enhancement of Brightness and Contrast Ratio of Bistable Reflective Cholesteric Liquid Crystal Displays

摘要

Double-layer test devices filled with cholesteric liquid crystals of opposed handedness have been constructed in order to improve brightness and contrast ratio of bistable cholesteric displays. The contrast ratio of these devices is 1,5 times higher than that of single cells; the use of cells with pretreated surfaces is not necessary.