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:
Aug. 21, 1979
Filed:
Dec. 28, 1977
Applicant:
Inventors:
John G Bergman, Jr, Rumson, NJ (US);
Ravinder K Jain, Pacific Palisades, CA (US);
Sigurd Wagner, Holmdel, NJ (US);
Assignee:
Bell Telephone Laboratories, Incorporated, Murray Hill, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
357-6 ; 357 17 ; 357-4 ;
Abstract
Devices which emit in the visible region having a metal oxide barrier layer, e.g. magnesium oxide or beryllium oxide, and having a corresponding metal electrode, i.e., a magnesium or beryllium electrode, in addition to a silver electrode are stable at room temperature. The emitted light spectrum is dependent on the voltage applied to the device which emits an orange or green appearing light for the Mg and Be junctions, respectively.