Gas discharge display device including web shaped spacing elements

Claim 1

Gas discharge display device comprising a gas filled gas-tight enclosure having a front plate, a rear plate and a plate-shaped control structure sub-dividing the interior of said enclosure into a gas discharge chamber and a post acceleration chamber, said plate-shaped control structure having mutually parallel elongated conductors on each side forming a matrix with row electrodes and column electrodes, said row electrodes facing the gas discharge chamber and said column electrodes facing the post accelerating chamber, said control structure being perforated in the intersection points of said matrix, said gas discharge chamber including at least one plasma electrode running parallel to said control structure, said post accelerating chamber including one post acceleration anode and spacing elements separating said post acceleration anode from said column electrodes by a minimal distance, said distance being such that a voltage of several kV will still fail to trigger a gas discharge, said spacing elements comprising struts with a wall thickness which is substantially constant, said struts extending in the plane of said control structure and being conveyed past said perforations of said control structure and running alternatively in sections, essentially parallel to said column and at an angle relative to the column conductor extension, respectively, said struts being electrically conductive, at least at their surface, such that a strut charging--which may possibly be produced by an electron beam entering said post acceleration chamber--will have faded away again until the next possible return of said electron beam.