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Viewing Angle Controllable Displays With A Blue-Phase Liquid Crystal Cell, Linghui Rao, Zhibing Ge, Shin-Tson Wu
Viewing Angle Controllable Displays With A Blue-Phase Liquid Crystal Cell, Linghui Rao, Zhibing Ge, Shin-Tson Wu
Faculty Bibliography 2010s
We demonstrate a controllable viewing angle liquid crystal display (LCD) using an inserted blue-phase liquid crystal (BPLC) cell. The BPLC layer functions as a tunable positive C-film or a negative C-film, depending on whether the employed LC has a positive or negative dielectric anisotropy. Therefore, the viewing angle of the LCD panel can be controlled continuously by the applied voltage of the BPLC cell.
Direct Measurement Of Electric-Field-Induced Birefringence In A Polymer-Stabilized Blue-Phase Liquid Crystal Composite, Jin Yan, Meizi Jiao, Linghui Rao, Shin-Tson Wu
Direct Measurement Of Electric-Field-Induced Birefringence In A Polymer-Stabilized Blue-Phase Liquid Crystal Composite, Jin Yan, Meizi Jiao, Linghui Rao, Shin-Tson Wu
Faculty Bibliography 2010s
We demonstrate a method to directly measure the electric-fieldinduced birefringence of a polymer-stabilized blue-phase liquid crystal (PS-BPLC) composite. The induced birefringence follows the extended Kerr effect well and is approximately 3X the ordinary refractive index change. The measured data are validated by comparing the simulated and measured voltage-dependent transmittance with an in-plane switching cell. The impact of these results to the material optimization of emerging BPLC displays is discussed.