Color cathode ray tube having a faceplate-mounted support structure with a welded-on high-tension foil shadow mask

A front assembly for a cathode ray tube includes a substantially flat faceplate having on its inner surface a centrally disposed phosphor target surrounded by a peripheral sealing area adapted to mate with a funnel. The front assembly includes a stiff faceplate-mounted support structure with a welda...

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Hauptverfasser: FENDLEY, JAMES R
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A front assembly for a cathode ray tube includes a substantially flat faceplate having on its inner surface a centrally disposed phosphor target surrounded by a peripheral sealing area adapted to mate with a funnel. The front assembly includes a stiff faceplate-mounted support structure with a weldable metal surface secured to the inner surface of the faceplate between the sealing area and the target for supporting a high-tension foil shadow mask at a predetermined distance from the inner surface of the faceplate. The mask has a central apertured area and a peripheral area which is welded to the support structure.