Fluorescent display device

Details Fluorescent display device Fluorescent display device

1979-02-02

1980-08-19

LaRoche, Eugene R.

Electric lamp and discharge devices: systems

Plural power supplies

Plural cathode and/or anode load device

313497, 315339, 340701, 340781, H01J 6306

Patent

active

042186366

ABSTRACT:
A fluorescent display tube of the triode type having, in a vacuum casing, a filamentary cathode for emitting thermions, and a control electrode for accelerating and controlling the thermions emitted from the cathode, a pattern display section composed of segment anodes each coated with a phosphor layer for emitting light when the thermions impinge thereon, the phosphor layer deposited on the segment anodes being composed of mixed fluorescent materials each having different luminous color and threshold luminous voltage.

REFERENCES:
patent: 4045702 (1977-08-01), Yasutome et al.
patent: 4081716 (1978-03-01), Uemura

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