Abstract:
A pair of glass plates of a gaseous discharge display or memory device are held precisely spaced by two sets of identically sized overlapping spacer rods. The rods crisscross orthogonally within a sealed gas-containing chamber to create gaps through which the gas can flow without significant restriction between areas of the chamber separated by said rods. Sealing rods of glass having a softening temperature lower than that of the spacer rods are disposed like a border around the spacer rods and are of significantly greater diameter or height than the combined height of the two superposed sets of spacer rods. Initially the upper plate is supported solely by sealing rods; but upon heating of the assemblage, the sealing rod glass reflows, and the upper plate settles until it contacts the upper set of spacer rods; whereupon the assembly is cooled and the sealing rods fuse with the plates to create an impermeable chamber between the now precisely spaced plates.
Abstract:
A gas discharge display panel (10) may be used for display purposes despite the presence of open conductors (15a and 15b) in the panel. Four termination areas (26, 27, 28, and 29), each including a plurality of repair pads (21, 22, 23 and 24) are provided, one at each end of each of the two conductor arrays (14 and 15) in the panel. One end of each conductor in each array is connected to a respective repair pad in the adjacent termination area. A repair cable (30) having a plurality of conductors (43) runs from the termination area at one end of a conductor array to the termination area at the other end of the array. To repair an open, opposite ends (32a, 32b, 46 and 48) of a respective repair cable conductor are connected to the open conductor's repair pads (21a and 22a). By virtue of the connection of the opposite ends of a repair cable conductor (43a) to the open conductor's repair pads (21a and 22a), both ends of the open conductor (15a) are electrically connected. When an open conductor is energized (19) at one end (17a), the entire body of the open conductor is at the same electrical potential despite the presence of the open. In a preferred embodiment, the repair cable comprises a plurality of conductors (43) partially embedded in a thermosetting adhesive (42).