AUTOELECTRONIC PLANAR-EDGE MATRIX FILM CATHODE Russian patent published in 1997 - IPC

FIELD: vacuum tubes; microwave engineering; flat luminescent cathode screens incorporating autoelectronic cells. SUBSTANCE: cathode has substance, matrix of emission-active cells interconnected through X and Y buses and provided with conducting films including emitter film, as well as main insulating films and additional (spacing) insulating films placed in parallel with substrate so that emitter film is placed between additional (spacing) films and that emitter and spacing films are jointly placed between main insulating films; ends of spacing films are inserted through higher depth than those of emitter and main insulating films; ends of main insulating films carry films of pulling electrodes; main and additional (spacing) insulating films have structure in the form of building layers of different materials and different thickness placed in parallel with substrate. EFFECT: enlarged functional capabilities. 9 cl, 2 dwg