REFLECTIVE POLARIZER FOR A DISPLAY DEVICE

摘要

An assembly is provided suitable for use in visual display devices, such as Cathode Ray Tubes (CRTs) and Plasma Display Panels (PDPs) comprising a set of polarizers comprising reflective polarizer means and absorbing polarizer means, and optionally a quarter wave retardation means, which enhances the luminance-contrast performance of said visual display devices, wherein said reflective polarizer means is comprised of birefringent inorganic thin-film material, e.g. silica. This inorganic polarizer material is preferably arranged at the inner side of the display and resists the manufacturing and operating conditions in a display device. Light emitted by the phosphor dots becomes polarized with an efficiency between 50 and 100 %. This polarized light is fully transmitted by the dichroic polarizer whereas incident daylight is absorbed for more than 50 %. Also claimed are visual display devices comprising said assembly, and methods of manufacturing said assembly and said visual display devices.