Low voltage and high transmittance transflective blue-phase liquid crystal display with corrugated electrodes

A transflective polymer-stabilized blue-phase liquid-crystal display (BP-LCD) with a corrugated electrode structure is proposed. To balance the optical phase retardation between the transmissive (T) and reflective (R) regions, two device structures are proposed. The periodic corrugated electrodes generate a strong horizontal electric field symmetrically distributed across the entire LC layer.The first device structure employs the same inclination angles but different cell gaps in the T and R regions.And the second device structure employs the same cell gap but different inclination angles in the T and R regions. Both of the device structures can obtain well-matched VT and VR curves. When the operating voltage is 9.7 V. the transmittance can achieve 89.05%. The proposed structure exhibits low operating voltage, high optical efficiency, and a wide viewing angle.