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:
Mar. 29, 1977
Filed:
May. 04, 1976
Nobumasa Ohshima, Hirakata, JA;
Hiroshi Kawarada, Hirakata, JA;
Shinichi Noma, Katono, JA;
Toshio Tatsumichi, Ando, JA;
Matsushita Electric Industrial Co., Ltd., Kadoma, JA;
Abstract
This invention relates to an X-Y matrix type electroluminescent display panel. The panel includes a transparent insulating substrate, transparent and parallel X-electrodes of strip shape provided on said transparent insulating substrate, a D.C. electroluminescent layer provided on said transparent parallel electrodes; parallel Y-electrodes of strip shape provided on said D.C. electroluminescent layer, the direction of said Y-electrodes being perpendicular to that of said X-electrodes, said X- and Y-electrodes and said D.C. electroluminescent layer defining display elements at the intersections of said X- and Y-electrodes; and a mesh-shaped insulating layer, preferably of black color, for insulating said display elements from each other at least in the vicinity of said X-electrodes. Because of the mesh-shaped insulating layer, it becomes possible to achieve uniform 'forming' of said D.C. electroluminescent layer and to improve the brightness and contrast of the resultant display panel.