Abstract:
A special format readout indicator of the gas discharge type includes several different character and symbol display positions in a flat sandwich structure. The device includes an insulating base plate on which a plurality of separate groups of cathode electrode segments and terminals for them are formed. Some of the cathode groups are interconnected arrays of electrode segments provided for displaying different characters or symbols, while others are preformed for displaying only predetermined symbols, and are interconnected if operation permits. Some of the anodes are associated both with a character display cathode group and with one or more of the symbol indicating cathode elements. The cathodes are formed of strips or bars of conductive material connected to conductors supported on the insulating base plate. The anode electrodes are suitably shaped to cooperate with appropriate ones of the character and symbol cathodes and are supported near them, preferably being carried by an insulating face plate.
Abstract:
Display devices adapted to display one or more characters sideby-side in one or more rows and including several groups of display cathode segments positioned in a row, with corresponding segments in each group connected in common, an anode electrode associated with each group of the display segments, and an auxiliary electrode partially surrounding and electrically isolating each group of display segments. The cathode segments, together with an anode, can be selectively energized to display a character at any desired cathode group or position. The auxiliary electrode can be energized to inhibit electrical discharge between the display cathode segments and any other than the associated anode.