(under subclass 739) Subject matter wherein the image is reproduced by means of an externally scanned device having intersecting electrode sets between which an active liquid medium having electrically varying optical properties is disposed.
SEE OR SEARCH THIS CLASS, SUBCLASS:
58, for stereoscopic display devices which may use a liquid crystal material.
751, 761 and 766, for projection type display devices wherein a liquid crystal material is used to modulate a light beam.
SEE OR SEARCH CLASS
349, Liquid Crystal Cells, Elements and Systems, appropriate subclasses for utilizing a liquid crystal display structure in general.