Low Voltage and High Optical Efficiency Single-Cell-Gap Transflective Display Using a Blue-Phase Liquid Crystal

A single-cell-gap transflective display using a polymer-stabilized blue-phase liquid crystal is proposed. The periodic right triangle electrodes whose hypotenuses parallel to each other are formed. In the transmissive (T) region, the legs of the right triangle electrodes are opposite, which leads to a strong horizontal electric field. In the reflective (R) region, the hypotenuses parallel to each other, which results in a strong horizontal field component, which is uniformly distributed across the entire R-region. By optimizing the device parameters, well matched voltage-dependent transmittance and reflectance curves are achieved. This device exhibits low operating voltage (< 10 V), wide viewing angle, and high optical efficiency in both T- and R-regions. The potential application of the proposed device is emphasized.