Single Cell Gap Polymer Stabilized Blue Phase Transflective LCDs Using Internal Nano Wire GridPolarizer

摘要

Optically isotropic liquid crystal (LC) mixture such as blue phase LC and optically isotropic nano-structured LC composites exhibit the advantages of fast response time, high contrast ratio and wide-viewing angle due to the induced birefringence along the horizontal electrical field. Utilizing this mixture, a novel single cell gap IPS type polymer-stabilized blue phase transflective liquid crystal displays (IPS-PSBP-TRLCDs) by embedding the nano wire grid polarizer (NWGP) as a polarization-dependent reflective polarizer in the R region is proposed. As a result, this device can be used as a normally black mode without any quarter-wave plate (QWP) or a patterned in-cell phase retarder. Moreover, the transmittance is identical to the reflectance so that it can be suitable for single gamma driving. Detailed electro-optic performance, such as voltage-dependent light efficiency and viewing angle of the propose device configuration, is investigated.