Color cathode ray tube
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Dec 31, 2002
Grant Date -
N/A
app pub date -
Oct 4, 2000
filing date -
Oct 8, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A color cathode ray tube can reduce a warp amount derived from a spring back after shaping a shadow mask and can suppress the deformation of a main surface of the shadow mask after fixedly securing the shadow mask and a mask frame to each other. The color cathode ray tube includes tongue portions which are protruded from distal ends of skirt portions of the shadow mask and a plurality of stress absorption holes are formed in the tongue portions.
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