Glow discharge display device with intersecting electrode systems sealed between opposing plates

Claim 1

A glow discharge display device comprising first and second substantially parallel electrically insulating plates facing one another with a discharge gas atmosphere between them, first and second sets of elongate electrical conductors extending between and substantially parallel to the plates with the conductors of the first set spaced from and crossing those of the second set to form a cross-bar addressing system for the resulting array of electric discharge paths through said atmosphere defined by the effective cross-points of the conductors of the first set with those of the second, the surface of the first plate which faces the second plate comprising an array of electrically insulating posts thereon wHich extend between the conductors of the first set towards the second plate, the conductors of the second set running between the end of said posts and the second plate so that each part of each conductor of the second set which links a pair of adjacent said cross-points is situated between the end of an individual post and the second plate, and members on said second plate of electrically insulating material extending in the length direction of the conductors of the second set to fill the space formed by the array of insulating posts in the direction perpendicular to the first set of conductors.