LP-K: A Bistable Twist Cell Exhibiting Long-Term Bistability Suitable for Page-Sized Displays

Polymer stabilization has been employed to solve the problem of long term bistability in the bistable twist cell. Polymer walls were formed around pixels to prevent the growth of the unwanted 180° twist state. This polymer stabilized bistable twist cell (PSBTC) exhibits sub-millisecond addressing times and a wide window of long term bistability. These late breaking results represent a major development for this technology making it a suitable choice for an ultra-low power high resolution document reader.