Glass cover plate for a flat display panel having marginal proje

Details Glass cover plate for a flat display panel having marginal proje Glass cover plate for a flat display panel having marginal proje

1976-03-25

1977-07-05

Demeo, Palmer C.

Electric lamp and discharge devices

With envelope

313220, 313496, 313519, H01J 1954, H01J 6130

Patent

active

040342530

ABSTRACT:
A glass cover plate of the type having a shape of a rectangle in outline and comprising an outwardly protruded central portion for covering electrodes of a flat display panel and a peripheral flange having a planar surface for seal to a planar substrate of the display panel. A projection is formed along margins of the flange at least at each corner portion of the rectangle. The projection may extend away from the planar surface substantially in the sense in which the central portion protrudes or extend from the planar surface substantially against the sense in which the central portion protrudes.

REFERENCES:
patent: 3286118 (1966-11-01), Vause et al.
patent: 3811060 (1974-05-01), Tsujimoto
patent: 3842313 (1974-10-01), Van Daelen et al.
patent: 3976907 (1976-08-01), Yanagisawa et al.

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