Polarized light emitting light guide plate, method of manufacturing the same and illuminator for flat panel display device using polarized light emitting light guide plate

摘要

Provided are a polarized light emitting light guide plate which can transmit light with a predetermined polarization, a method of manufacturing the same, and an illuminator for a flat panel display device using the polarized light emitting light guide plate. The polarized light emitting light guide plate comprises: a transparent substrate (31) in which the light incident through a lateral side of the polarized light emitting light guide plate travels and that is formed of an optically isotropic material; an anisotropic liquid crystal polymer layer (35) that is formed on an upper surface of the substrate and has different refractive indices with respect to first and second polarized components of light that are perpendicular to each other; and a polarization separation microstructure (33) that is formed at an interface between the transparent substrate and the liquid crystal polymer layer, and refracts or reflects the first polarized component light and transmits the second polarized component light. The refractive index of the polarization separation microstructure is substantially equal to the refractive index of the substrate, the refractive index of the liquid crystal polymer layer with respect to the first polarized component of light is greater than the refractive index of the substrate, and the refractive index of the liquid crystal polymer layer with respect to the second polarized component of light is substantially equal to the refractive index of the substrate.