Patent ID: 6449023
Filing Date: 2002-09-10
Classification: G02B,G02F,H01L,H04N,Y10S

Abstract:
A transmissive active matrix liquid crystal display device comprising:an active matrix array of transistor circuits and pixel electrodes, each pixel electrode being electrically connected to a transistor circuit that actuates the pixel electrode; an optically transmissive substrate attached to the active matrix array; a layer of liquid crystal material positioned the substrate and a counter electrode to form a transmissive display structure such that actuation of the pixel electrodes controls transmission of light through a volume of the liquid crystal material; a multilevel optical phase element that separates each color component of light into a plurality of diffraction orders, wherein said multilevel optical phase element is aligned with the active matrix array and directs light of different colors through different volumes of the liquid crystal material; and a housing that contains the transmissive display structure and the multilevel optical phase element.