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:
Nov. 19, 2002
Filed:
Jul. 12, 1999
Applicant:
Inventor:
Johann Mitrowitsch, Lichtenwald, DE;
Assignee:
Matsushita Display Devices (Germany) GmbH, Esslingen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 3/26 ; G09G 1/28 ; H01J 2/951 ;
U.S. Cl.
CPC ...
H04N 3/26 ; G09G 1/28 ; H01J 2/951 ;
Abstract
Color television apparatus and color monitors are provided with a device, in particular with an electron lens system, to vary the mutual spacing of the electron beams generated in an electron beam generating system. By reducing the mutual spacing between the generated electron beams, in accordance with the deflection of the electron beams, the spacing of the shadow mask to the viewing screen can be increased at an increasing distance to the center of the screen, and thereby a less expensive shadow mask design can be used without having to take the former disadvantages of a flat screen into account.