Patent ID: 6603253
Filing Date: 2003-08-05
Classification: H01J

Abstract:
A color cathode ray tube, comprising:an envelope including a panel having a phosphor screen mounted therein, a funnel contiguous to the panel and including a neck; an electron gun assembly including three cathode electrodes received in the neck at an edge portion of the funnel and heated by heaters sealed in the neck, a first plurality of electrodes having apertures corresponding to the three cathode electrodes and forming a section, together with the three cathode electrodes, for generating electron beams, a second plurality of electrodes for forming a main lens section for focusing the electron beams on the phosphor screen, and an insulating supporting bar for supporting the three cathode electrodes and the first and second plurality of electrodes; a stem section having a portion welded to the neck section and stem pins buried in the circular portion for holding the electron gun assembly and for electrically connecting each of the three cathode electrodes and the first and second plurality of electrodes to the circuit outside the tube; and a conductive member having one end connected to a respective stem pin and the other end connected to at least one electrode included in the electron gun assembly, wherein the conductive member includes a folded buffering section for buffering the thermal expansion force accompanying the heat generation from the heater.