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:
Oct. 26, 1993
Filed:
Jan. 30, 1992
Applicant:
Inventors:
Gotthold Bubeck, Erkenbrechtsweiler, DE;
Stefan Speh, Ulm-Gogglingen, DE;
Kurt-Manfred Tischer, Wendlingen, DE;
Assignee:
Nokia (Deutschland) GmbH, Pforzheim, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
313495 ; 313422 ; 313497 ; 313482 ;
Abstract
A flat CRT display tube has a faceplace (11) with a fluorescent pixel screen (33) on its interior face. An area cathode assembly has an orthogonal array of segment electrodes (27) with overlying heater wires (25) spaced above them. A control assembly (38) arrayed between the cathode assembly and the screen includes orthogonal arrays of row electrodes (20) and column electrodes (21) with an overlying anode (19). A frame (18) supports the cathode assembly and the control assembly, and is itself supported by the tube's envelope, preferably by its faceplate (11).