Flourescent display device having a protective film interposed b

Details Flourescent display device having a protective film interposed b Flourescent display device having a protective film interposed b

1994-07-12

1996-08-06

Patel, Nimeshkumar D.

Electric lamp and discharge devices

With luminescent solid or liquid material

Vacuum-type tube

313466, 313473, 313474, 313112, 359893, H01J 2918

Patent

active

055436854

ABSTRACT:
A fluorescent display device of the front emission type capable of permitting light-permeable anode conductors to be uniformly formed without any deformation and preventing color filters from being affected by etching carried out for forming the anode conductors. A light-permeable anode substrate is provided thereon with strip-like filters, which are then formed thereon with a uniform and flat protective film of light-permeable, insulating and etching-resistant properties. Then, anode conductors are arranged on the protective film. Thus, the anode conductors can be uniformly formed on the flat protective film irrespective of unevenness on a surface of the filters. Also, the protective film prevents the anode conductors from being exposed to etching liquid used for formation of the anode conductors.

REFERENCES:
patent: 2543477 (1951-02-01), Sziklai et al.
patent: 3873868 (1975-03-01), Robinder
patent: 4717856 (1988-01-01), Kato

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