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    • 2. 发明授权
    • Display fluorescent lamp and display device
    • 显示荧光灯和显示装置
    • US5668443A
    • 1997-09-16
    • US545274
    • 1995-10-19
    • Hironobu KawaguchiNoriyuki TomimatsuKazuo YoshiokaSadayuki Matsumoto
    • Hironobu KawaguchiNoriyuki TomimatsuKazuo YoshiokaSadayuki Matsumoto
    • G09F9/313H01J61/30H01J61/42H01J61/52H01J61/78H01J65/04G09G3/10
    • H01J61/523G09F9/313H01J61/30H01J61/42H01J61/78H01J65/046
    • A display fluorescent lamp comprises; a dielectric cylindrical container having a large-diameter portion in which rare gas is sealed and a small-diameter portion which is almost coaxially connected with the large-diameter portion at one end of the large-diameter portion, the outside diameter thereof being smaller than that of the large-diameter portion; a light emitting portion which is formed at the other end of the large-diameter portion and has permeability; an internal electrode which is inserted into the cylindrical container from the other end of the small-diameter portion which is not connected with the large-diameter portion; a fluorescent substance layer formed on the inside face excluding that in which the light emitting portion is formed, of the large-diameter portion of the cylindrical container; and an external electrode formed on the outside face of the large-diameter portion excluding a portion in which the light emitting portion of the cylindrical container is formed, the length in the axial direction, of the small-diameter portion of the cylindrical container being set so as to be longer than an insulation distance required against a voltage to be applied between the internal electrode and the external electrode. Consequently, it is possible to ensure a sufficient insulation distance between the internal electrode and the external electrode even if the diameter of a glass valve is small.
    • 显示荧光灯包括: 具有大直径部分的绝缘圆柱形容器,其中稀有气体被密封,并且小直径部分与大直径部分的一端处的大直径部分几乎同轴连接,其外径小于 大口径部分; 发光部,形成在所述大直径部的另一端,具有导磁性; 从与所述大直径部未连接的所述小径部的另一端插入到所述圆筒形容器中的内部电极; 形成在所述圆筒形容器的大直径部分中的除了形成有发光部分的内侧的内侧面上的荧光体层; 以及形成在大直径部分的外表面上的外部电极,除了形成有圆筒形容器的发光部分的部分之外,圆柱形容器的小直径部分的轴向长度被设定 以便比在内部电极和外部电极之间施加的电压所需的绝缘距离更长。 因此,即使玻璃阀的直径小,也能够确保内部电极与外部电极之间的充分绝缘距离。