(under subclass 61) Subject matter wherein the liquid crystal device is lit by a layer which emits fluorescent light when electrically driven by electrodes.
(1) Note. Excluded from this subclass are fluorescent bulbs and layers which emit fluorescent light when illuminated with a light source, rather than when driven by electrodes. For such excluded subject matter, see SEARCH THIS CLASS, SUBCLASS below.
(2) Note. Included here are CRTs for lighting and not for exciting.
SEE OR SEARCH THIS CLASS, SUBCLASS:
70, for using fluorescent bulbs and layers as a light source in a liquid crystal cell.
