发明授权
- 专利标题： Multi-digit fluorescent display tube
- 专利标题（中）： 多位荧光显示管
-
申请号： US671150申请日： 1975-03-29
-
公开(公告)号： US4047072A公开(公告)日： 1977-09-06
- 发明人: Takao Kishino , Kiyoshi Morimoto , Yukihiko Utamura
- 申请人： Takao Kishino , Kiyoshi Morimoto , Yukihiko Utamura
- 申请人地址： JA
- 专利权人： Futaba Denshi Kogyo Kabushiki Kaisha
- 当前专利权人： Futaba Denshi Kogyo Kabushiki Kaisha
- 当前专利权人地址： JA
- 优先权： JA50-36848 19750328; JA50-57457 19750516
- 主分类号： H01J31/15
- IPC分类号： H01J31/15 ; H01J61/067 ; H01J61/66
摘要：
A multi-column fluorescent display tube having a casing composed of a base plate and a cover plate, multi-column pattern display sections each composed of a plurality of segment anodes with fluorescent material layers thereon provided on the upper surface of the base plate, cathodes provided opposite to the pattern display sections, electrification preventive layers provided around and in the vicinity of the segment anodes on the base plate and electrically connected to prevent electrification and to intercept an external electric field, and terminal lead-in wires provided outside the casing and air-tightly connected through the casing to the respective segment anodes, cathodes and electrification preventive layers.