Bistable reflective cholesteric liquid crystal display

A new type bistable reflective cholesteric liquid crystal display is reported. The texture and the relaxation process are very different from other types of the reflective cholesteric displays reported previously. The contrast ratio of the display is about 2.5 times higher than regular cholesteric displays. The response time of the display is 10 ms, which is much faster than the 230 ms response of regular cholesteric displays made with the same liquid crystal materials. A model to explain the unique textures of the display is presented.