Glass bulb for colour picture tube, and said tube

A colour picture tube is provided with a glass bulb (1) in which the external surface (10A) of the effective display area of the face plate (10) is formed substantially flat and a colour selection mask (20), having the curvature thereof projected toward the face plate, provided opposed to the intern...

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Bibliographic Details
Main Authors UTSUMI, ICHIRO, SAITA, KOJI, IGUCHI, YUKINOBU
Format Patent
LanguageEnglish
French
German
Published 08.06.2005
Edition7
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
ELECTRICITY
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Summary:A colour picture tube is provided with a glass bulb (1) in which the external surface (10A) of the effective display area of the face plate (10) is formed substantially flat and a colour selection mask (20), having the curvature thereof projected toward the face plate, provided opposed to the internal surface (10B) of the face plate within the glass bulb. Therefore, the external surface is flat, the mechanical shock resistance characteristic is high, a tension can surely be applied to the colour selection mask and moreover vibration of the colour selection mask can be prevented even if external vibration is applied thereto.
Bibliography:Application Number: EP19970401955