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:
Apr. 02, 1996
Filed:
Mar. 03, 1994
Mark Topp, Miami, FL (US);
Other;
Abstract
The present invention is directed to an addressable electroluminescent display which eliminates ghost images resulting from leads used to energize the display. The addressable display has a polymer film substrate with a first electrode deposited onto the polymer film. A group electrode is provided which is spaced apart from the first electrode. The group electrode has segments so arranged that, when projected onto the first electrode, form a substantially continuous group electrode footprint. A phosphor layer is interposed between the first electrode and the group electrode. Preferably, a dielectric is also interposed between the phosphor layer and the group electrode. A group electrode insulating layer overlies the group electrode and has group electrode insulating layer passages therethrough. Group electrode leads overlay the group electrode insulating layer and are positioned such that their projection onto the first electrode lies within the group electrode footprint. The group electrode leads pass through the group electrode insulating layer passages connecting with the group electrode. In a preferred embodiment, the group electrode has co-planar segments which provide the substantially continuous group electrode footprint.