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. 27, 1976
Filed:
Nov. 04, 1974
William Herbert Ninke, Holmdel, NJ (US);
Bell Telephone Laboratories, Incorporated, Murray Hill, NJ (US);
Abstract
A two-dimensional planar display device includes a plurality of plasma discharge shift registers positioned along rows of a display matrix. Each resolution element along a row includes two stable discharge locations, a first of which is optically masked. Modulating the duration of propagation signals associated with the second discharge location, the duration for propagation signals for the entire resolution element being constant, permits the generation of continuously variable brightness levels. In a preferred embodiment, glow discharges propagating down an additional one or more column shift registers are sequentially coupled to row shift registers to permit rapid scanning over the entire two-dimensional array.