BROADBAND REFLECTIVE POLARIZER FILM AND LIGHT SOURCE ASSEMBLY INCLUDING THE SAME

摘要

PURPOSE: A broadband reflective polarizing film and a light source device including the same are provided to suppress light interference effect of the device and improve the brightness of the device. CONSTITUTION: A cholesteric liquid crystal layer(100) includes a reflective polarizing region(110) and haze region(120) which are successively arranged to the thickness direction of the cholesteric liquid crystal layer. The reflective polarizing region selectively transmits first polarized light emitted to the incident surface(110_1) of the reflective polarizing region and selectively reflects second polarized light. The haze region is arranged on the reflective polarizing region and disperses the first reflected light.