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. 29, 2003
Filed:
Nov. 27, 2000
Arnoldus Antonius Maria Hendriks, Eindhoven, NL;
Wilhelmus Marinus Maria Van De Steen, Eindhoven, NL;
Jean Winters, Eindhoven, NL;
Piet Christiaan Jozef Van Rens, Eindhoven, NL;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
A color display tube ( ) is disclosed with an improved suspension of the color selection electrode ( ). In order to have a color display tube with good properties of, for instance, color purity, it is of eminent importance that the color selection electrode ( ) has and excellent positional stability. Especially wide screen tubes seem to be more sensitive to external shocks by which the color selection electrode ( ) may shift and cause discolorations. The positional stability of the color selection electrode ( ) can be improved by decreasing the friction between the color selection electrode ( ) and the supporting elements ( ) in the display window ( ) of the color display tube ( ). This is achieved by applying a supporting element ( ) with a free end portion ( ) having a small diameter and by applying a low force between the suspension means ( ) and the supporting elements ( ). As a consequence of the lightweight construction of the color selection electrode ( ), this force can be lowered to about 4 newtons.