Reduced DC offset and faster dynamic response in carbon-nanotube- impregnated liquid-crystal display

Liquid crystals have been extensively employed in photonic devices, especially in current flat panel displays. Demands on high-quality electro-optical performance of liquid-crystal displays have continued to impel delicate molecular designs as well as advanced cell manufacturing processes, leading to a reduced dc offset and faster intrinsic response in the devices. Here a novel approach toward the reduction of the residual dc and response time is reported based on carbon-nanotube doping. It is demonstrated that a minute amount of carbon nanotubes as a dopant can suppress the unwanted ion effect and lower the rotational viscosity of the liquid-crystal host in a cell.