发明名称 Color cathode ray tube
摘要 A first frame includes a bottom portion, an inclined portion, a joint portion and a lateral portion for supporting a shadow mask. Between the lateral portion and the joint portion, a space is provided except where the lateral portion and the joint portion are welded. The joint portion is inclined with respect to the lateral portion such that the space enlarges with an increase in the distance from an edge of the lateral portion on the side of supporting the shadow mask. With this configuration, foreign substances can be removed from between the lateral portion and the joint portion in the process of cleaning the first frame, making it possible to both suppress the deterioration of high-voltage withstand capabilities of a color cathode ray tube and prevent the poor welding of the first frame.
申请公布号 US2004150313(A1) 申请公布日期 2004.08.05
申请号 US20040764030 申请日期 2004.01.22
申请人 MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. 发明人 MINAMI GO;WATANABE HIROTOSHI;AONO HIROSHI
分类号 H01J29/07;H01J29/80;(IPC1-7):H01J29/80 主分类号 H01J29/07
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