Luminescent character display device

Details Luminescent character display device Luminescent character display device

1977-04-15

1979-04-10

Curtis, Marshall M.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

313483, 3151693, 340781, 340802, G06F 314

Patent

active

041491475

ABSTRACT:
A luminescent character display device having an insulating base plate, a pattern display section formed on the base plate and composed of a plurality of subsections, one for each digit, the sub-section being formed of a plurality of anodes disposed in a matrix form and each coated with a fluoroescent layer, a plurality of anode wires coated on the base plate and disposed so that they pass the corresponding positions of the respective sub-sections of the pattern display section, an insulating layer laminated on the anode wires and provided with through-holes leading to the anode wires, said anodes being coated on the insulating layer, the anodes disposed at the corresponding positions of the respective sub-sections of the pattern display section being electrically connected in common through the respective anode wires connected thereto through the through-holes, primary grids provided above the anodes, one for each digit, filament cathodes provided above the primary grids for emitting thermions, wherein the anodes are selectively given anode voltage for display.

REFERENCES:
patent: 3824582 (1974-07-01), Glaser et al.
patent: 3868676 (1975-02-01), Hennessey et al.
patent: 3873870 (1975-03-01), Fukushima et al.
patent: 4066929 (1978-01-01), Okamoto et al.

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