MANUFACTURE OF COLOR CATHODE-RAY TUBE FOR MINIMIZING THERMAL DEFORMATION OF SHADOW MASK

MANUFACTURE OF COLOR CATHODE-RAY TUBE FOR MINIMIZING THERMAL DEFORMATION OF SHADOW MASK

PURPOSE: To provide a manufacture of color cathode ray tube which can prevent thermal expansion and thermal deformation of a shadow mask therein and improve a characteristic of color purity and a lifetime thereof by absorbing heat generated by the shadow mask. CONSTITUTION: A manufacture comprises a...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: KIN NORIHIDE, BOKU KOUJIYUN
Format: Patent
Sprache:eng
Schlagworte:
BASIC ELECTRIC ELEMENTS
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
ELECTRICITY
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Beschreibung
Zusammenfassung:PURPOSE: To provide a manufacture of color cathode ray tube which can prevent thermal expansion and thermal deformation of a shadow mask therein and improve a characteristic of color purity and a lifetime thereof by absorbing heat generated by the shadow mask. CONSTITUTION: A manufacture comprises a step of: increasing the degree of vacuum inside a cathode ray tube 1 by means of sealing getter 7, in which a material of Mn is stuffed under a material of Ba 10 and a material of Ni 12, on an interior surface of a funnel 6 of the cathode ray tube 1, heating the getter 7 with high-frequency electromagnetic wave, and evaporating the material of Ba 10; and also sealing the material of Mn on an aluminum film 2 coated on a panel 3.