Diffractive color separation for high efficiency LCD's

At the Cockpit Displays III conference(1), diffractive color separation was proposed as a means for improving both the performance and efficiency of liquid crystal displays. This paper discusses that approach in further detail as well as the progress made in attempting to develop the necessary technology. Specifically, progress has been made on two fronts: the development of the color separation element and the development of a low divergence backlight suitable for avionics direct view applications. The approach taken in these two developments is described as well as the current state of the development.