Black matrix color picture tube
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United States of America Patent
Stats
-
Jan 14, 1992
Grant Date -
N/A
app pub date -
Aug 31, 1988
filing date -
Sep 1, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A black matrix color picture tube has a phosphor layer and black matrix layer formed on the inner surface of the faceplate. A layer of glass having a low softening point is provided between the phosphor layer and the inner surface of the faceplate and between the black matrix layer and the inner surface of the faceplate. The softening point of the glass is below the temperature at which the tube is subjected during a frit baking step employed in the fabrication of the tube. For example, a borophosphate glass is used as the layer of glass having a low softening point.
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Family
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