Fluorescent display tube

Details Fluorescent display tube Fluorescent display tube

1982-12-17

1985-09-17

Demeo, Palmer

Electric lamp and discharge devices

With luminescent solid or liquid material

Vacuum-type tube

313513, H05B 3306, H05B 3312

Patent

active

045423172

ABSTRACT:
A fluorescent display tube of the type that luminous display is observed through a substrate is disclosed which is capable of accomplishing luminous display easily observable in a light environment as well and without any display defect, providing luminous display with a wide visual angle and simplifying the manufacturing process. The fluorescent display tube includes a substrate made of a light-permeable and light-scattering insulating material and a metal film deposited on the substrate which has a color similar to non-luminous color of anodes and also acts as feeder paths. The metal film is formed with openings corresponding to the shape of a display pattern in which transparent anode conductors each having a fluorescent layer deposited thereon are received.

REFERENCES:
patent: 3500392 (1970-03-01), Waljuk et al.
patent: 3723789 (1973-03-01), Tanji
patent: 4455774 (1984-06-01), Watanabe

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