发明名称 |
Color cathode ray tube |
摘要 |
A shadow mask includes a substantially rectangular effective region formed having a number of electron beam passage apertures and opposed to a phosphor screen and a substantially rectangular skirt portion provided around the effective region and extending in the direction of a tube axis. The skirt portion has a pair of long sides extending substantially parallel to a major axis and a pair of short sides extending substantially parallel to a minor axis, the long and short sides being welded to the inner surface of a substantially rectangular mask frame. A distance a from an extending end of the skirt portion on each long side to the weld spot is longer than a distance b from an extending end of the skirt portion on each short side to the weld spot.
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申请公布号 |
US2002084738(A1) |
申请公布日期 |
2002.07.04 |
申请号 |
US20010025929 |
申请日期 |
2001.12.26 |
申请人 |
NAKAYAMA TAKESHI;NAKAGAWA SHINICHIRO;MURAI TAKASHI;INOUE MASATSUGU |
发明人 |
NAKAYAMA TAKESHI;NAKAGAWA SHINICHIRO;MURAI TAKASHI;INOUE MASATSUGU |
分类号 |
H01J29/07;(IPC1-7):H01J29/80 |
主分类号 |
H01J29/07 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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