Fluorescent display apparatus

Electric lamp and discharge devices – With luminescent solid or liquid material – Vacuum-type tube

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3151692, H01J 6302, H01J 6306

Patent

active

049704303

ABSTRACT:
A fluorescent display apparatus as a constituent of picture elements of a large-screen display apparatus which is provided with control electrodes for controlling courses of thermoelectrons emitted from cathodes, thereby decreasing fluctuation in brightness of a fluorescent display cell emitting light upon being bombarded by the electrons and preventing the electrons from bombarding other than predetermined fluorescent display cell with result of no emission of false light.

REFERENCES:
patent: 4525653 (1985-06-01), Smith
patent: 4692663 (1987-08-01), Kobayashi et al.
patent: 4893056 (1990-01-01), Hara et al.

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