39.2: Fast-Switching Flexoelectric Display Device with High Contrast



The flexoelectro-optic effect provides a fast switching mechanism (τ90-10 ∼ 10–100 μs) suitable for use in field-sequential-color, full motion video displays. An in-plane field is applied to a short-pitch chiral nematic liquid crystal aligned in the Uniform Standing Helix (or Grandjean) texture. The display performance is presented as a function of device parameters.