Smectic liquid crystal color display screen

Claim 1

A smectic liquid crystal display screen of the matrix display type comprising a network of heating electrodes and a network of video electrodes surrounding a smectic liquid crystal layer, said screen restoring a color image from polychromatic radiation incident to the screen, said image being the resultant of the elementary display points formed by the intersection of the heating electrodes and the video electrodes, said screen also comprising means for selecting at least two primary colors of said radiation, said selection means being formed from filtering deposits placed at the elementary display points and supported by the electrodes of a least one of said networks, said filtering deposits being grouped in multiplets of primary colors, wherein the configuration of the electrodes and the arrangement of the multiplets are such that the filtering elements in the same alignment effect differentiated filtering so as to avoid alignment of the deposits of the same color.