Method of manufacturing a gas panel assembly

Claim 2

In a method for improving the operating margin of a gaseous discharge display device comprising an assembly of two sealed plates, the improvements comprising the steps of forming an array of conductors in a predetermined configuration on each of said plates, applying a layer of dielecric material over at least one of said conductor arrays, heating the assembly of said plates, said conductor arrays and said dielectric to a temperature range between 200° and 400° C., vapor depositing a layer of magnesium oxide onto the surface of the dielectric of said heated plate assembly, and sealing said plate assemblies about their edges to form a chamber therein, said plate assemblies being disposed such that the conductor arrays on said plate assemblies are substantially orthogonal to each other, the intersections of said conductors defining gaseous discharge cells.

Claim 3

A method a defined in claim 1 wherein said step of applying said dielectric material over said conductor arrays comprises spraying and reflowing of dielectric glass frit.

Claim 4

A method of the type defined in claim 2 including the further step of baking out said gaseous discharge display assembly in an evacuation chamber to remove impurities therein after the reflowing and cooling of said dielectric.

Claim 5

A method of the type claimed in claim 3 wherein said magnesium oxide deposition step on said heated plate assembly is applied by evaporating magnesium oxide in said evacuation chamber.

Claim 8

A method of the type defined in claim 5 wherein said layer of dielectric glass is applied by spraying and reflowing dielectric glass frit.

Claim 9

A method of the type defined in claim 5 wherein said layer of magnesium oxide is deposited by evaporating magnesium oxide crystals in a heated evacuated chamber.

Claim 10

A process for fabrication of a gaseous discharge display storage device comprising in combination disposing parallel lines as electrical conductors on glass plates of appropriate dimensions to define conductor arrays, applying a layer of insulating material over each of said conductor arrays to form glass plate assemblies, baking out said glass plate assemblies in a vacuum to remove impurities therefrom, heating said glass plate assemblies in a vacuum atmosphere to 200°-400° C., vapor depositing a layer of magnesium oxide onto the surface of said insulating material of each of said heated plate glass assemblies, cooling said coated plate glass assemblies, sealing a pair of said plate assemblies during an oven cycle to form a panel assembly wherein the parallel conductor arrays on one plate are disposed substantially orthogonal to the conductor arrays on said other plate and a uniform gap is provided in the chamber between the opposing surfaces of said plate assemblies, heating said panel assembly in an oven and simultaneously evacuating the chamber, backfilling said chamber through a tubulation member with an ionizable gas mixture under less than atmospheric pressure, and exciting said panel assembly with drive signals applied to said electrical conductors until the operating voltages have assymtotically approached their minimum value and the electrical parameters have stabilized.

Claim 11

A process for fabrication of a gaseous discharge display storage device comprising in combination disposing parallel lines as electrical conductors on glass plates of appropriate dimensions to define conductor arrays, applying a layer of insulating material over each of said conductor arrays to form glass plate assemblies, baking out said glass plate assemblies in a vacuum to remove impurities therefrom, heating said glass plate assemblies in a vacuum atmosphere to 200°-400° C., vapor depositing a layer of magnesium oxide onto the surface of said insulating material of each of said heated plate glass assemblies, cooling said coated plate glass assemblies, sealing a pair of said plate assemblies during an oven cycle to form a panel assembly wherein the parallel conductor arrays on one plate are disposed substantially orthogonal to the conductor arrays on said other plate and a uniform gap is provided in the chamber between the opposing surfaces of said plate assemblies, heating said panel assembly in an oven and simultaneously evacuating the chamber, backfilling said chamber through a tubulation member with an ionizable gas mixture under less than atmospheric pressure, and exciting said panel assembly with drive signals applied to said electrical conductors until the operating voltages have assymtotically approached their minimum value and the electrical parameters have stabilized.