Abstract: An assembly for backlighting a liquid crystal display is disclosed herein along with the liquid crystal display itself and a specific light polarization arrangement. The assembly for backlighting the liquid crystal display includes a backlighting light pipe into which light is directed in a particular manner and a specifically configured arrangement of immediately adjacent microprisms which cooperate with the backlighting light pipe for reflecting light within the ladder upwards through one of its surfaces in a generally collimated manner. The liquid crystal display backlighting assembly is also disclosed including a specifically designed arrangement for collimating the light directed into the light pipe such that the light exiting the light pipe does so on a more collimated manner.

Abstract: An assembly for backlighting a liquid crystal flat panel display or other such arrangement requiring backlighting is disclosed herein. The assembly is composed of a multi-reflection light injection system, a light pipe and a set of specifically configured microprisms which, cooperating with the light pipe, provides an efficient backlighting technique with a controllable degree of collimation. The disclosed assembly may employ up to four light sources to give a brighter backlighting.