Glass front-panel and production method of the same

In a glass front-panel (1) for a cathode ray tube (12), whose surface layer contains more potassium ions than those in the interior thereof, and whose flange (1c) is stuck to a rear panel (10) to form a vacuum vessel, the surface layer of the flange portion (1c) is substantially removed or eluted. A...

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Bibliographic Details
Main Authors SUZUKI, KOUICHI, SHIBAOKA, KAZUO, AKIMOTO, TOSHIO
Format Patent
LanguageEnglish
French
German
Published 03.05.1995
Edition6
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
ELECTRICITY
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Summary:In a glass front-panel (1) for a cathode ray tube (12), whose surface layer contains more potassium ions than those in the interior thereof, and whose flange (1c) is stuck to a rear panel (10) to form a vacuum vessel, the surface layer of the flange portion (1c) is substantially removed or eluted. A belt-like electrode (2) for making the gradient of electric potential smoother is disposed on a surface of the side wall portion (1b), so that the cathode ray tube (12) is prevented from being damaged due to dielectric breakdown.
Bibliography:Application Number: EP19950100535