Viewing angle compensator for liquid crystal display

摘要

According to the present invention there is provided a viewing angle compensator for a liquid crystal display capable of diminishing the viewing angle dependency of the liquid crystal display. The viewing angle compensator comprises a light transmitting substrate and a film of a specific liquid crystalline polyester, the liquid crystalline polyester taking in the state of liquid crystal a structure wherein a refractive index in the thickness direction is larger than a refractive index at least in one direction in a plane and assuming a glassy state at a temperature lower than the liquid crystal transition point of the polymer. The viewing angle dependency of the liquid crystal display can be greatly diminished and thus the viewing angle compensator of the present invention contributes to the realization of high-grade displays and higher performance of a liquid crystal display unit.