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:
Sep. 05, 1978
Filed:
Apr. 01, 1977
Werner Veith, Munich, DE;
Siemens Aktiengesellschaft, Berlin & Munich, DE;
Abstract
A gas discharge display device comprising a gas-filled, -gas-tight enclosure, an insulating matrix member dividing the housing into two chambers and comprising an insulating plate having a plurality of apertures therethrough, arranged in an array of rows and columns corresponding in number to a desired number of image points, a cathode electrode disposed in one chamber and extending parallel with the matrix plate, and a luminescent screen electrode disposed in the other chamber, a plurality of anode conductors disposed on the side of the plate facing said cathode electrode, and a plurality of control conductors disposed on the side of the plate facing the luminescent screen electrode. Each of the conductors extend around the edges of the associated apertures, with each of the conductors on one side being associated with a row of apertures, and each of the conductors on the other side being associated with a column of apertures. The cathode electrode is so disposed that a gas discharge can burn in the discharge chamber, and the luminescent screen electrode is disposed sufficiently close to the adjacent conductors on the matrix member, that even a few kV applied to such screen electrode cannot trigger any undesired gas discharge, with the effective size of the apertures in the control conductors adjacent the screen electrode being less than that of the corresponding apertures in the anode conductors adjacent the cathode electrode. The apertures preferably are elongated, for example oval or slot-shaped, and the holes in the control electrodes may be provided with cross bars subdividing such apertures. Various supporting structures for maintaining the components in rigid operation positions may be provided.