The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 11, 1978
Filed:
Feb. 01, 1977
Masaki Kobayakawa, Izumi, JP;
Kazufumi Yawata, Izumi, JP;
Kazuo Ohta, Mine, JP;
Koichi Kumazawa, Mine, JP;
Nippon Electric Kagoshima, Ltd., Izumi, JP;
Narumi China Corp., Nagoya, JP;
Abstract
A luminescent display panel comprises a substrate assembly comprising a solid insulator substrate and an underlying and an overlying insulator layer successively thereon, a glass cover, and a sealing layer sealing the glass cover and the substrate assembly to enclose a vacuum space where electrodes of the panel are placed. Use is made of a sealing mass for positively eliminating slow leak which otherwise occurs if at least one of the leads for the electrodes interposed between the insulator layers is extended outwardly of the vacuum space continuously along the overlying layer. The sealing mass may comprise that portion of the underlying layer which lies across the sealing layer, with all leads laid directly on the solid substrate at their portions extended across the sealing layer. Alternatively, the sealing mass may comprise that extension of the sealing layer which reaches the underlying layer and the above-mentioned at least one lead, with the overlying layer recessed inwardly between the sealing layer and the underlying layer.