JPS62104359U

JPS62104359U -

Info

Publication number: JPS62104359U
Application number: JP19811985U
Authority: JP
Priority date: 1985-12-23
Filing date: 1985-12-23
Publication date: 1987-07-03

Description

[Brief explanation of the drawing]

第１図及び第２図はこの考案の一実施例による
蛍光表示管を示す図で、第１図は断面図、第２図
は斜視図、第３図ないし第５図は従来の蛍光表示
管を示す図で、第３図は断面図、第４図は斜視図
、第５図は電子の通過状態を示す図で第３図と異
つた断面を示す断面図、第６図はセパレータを示
す斜視図、第７図はフイラメントを示す斜視図で
ある。図中、１は表示管、２は本体、５はフイラメン
ト、７は第１のグリツド電極、８は穴、９は第２
のグリツド電極、１０は穴、１１はセパレータ、
１２は発光部、１３は洩れ防止板、１４は穴であ
る。なお、図中、同一符号は同一または相当部分
を示す。 1 and 2 are views showing a fluorescent display tube according to an embodiment of the invention, in which FIG. 1 is a sectional view, FIG. 2 is a perspective view, and FIGS. 3 to 5 are conventional fluorescent display tubes. FIG. 3 is a cross-sectional view, FIG. 4 is a perspective view, FIG. 5 is a cross-sectional view showing the state of electron passage and shows a different cross section from FIG. 3, and FIG. 6 is a separator. A perspective view, FIG. 7 is a perspective view showing a filament. In the figure, 1 is a display tube, 2 is a main body, 5 is a filament, 7 is a first grid electrode, 8 is a hole, and 9 is a second
grid electrode, 10 is a hole, 11 is a separator,
12 is a light emitting part, 13 is a leak prevention plate, and 14 is a hole. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.

Claims

[Scope of utility model registration request]

a filament that emits electrons; a first grid electrode that is spaced parallel to each other and has holes through which the electrons pass; In a fluorescent display tube comprising a second grid electrode arranged in parallel and having holes through which the electrons pass, and a light emitting section arranged in a matrix and having a fluorescent screen that emits three colors of red, blue and green, respectively. , characterized in that a leakage prevention plate is provided between the first and second grid electrodes, which has a hole through which the electrons pass, and prevents electrons from passing between the second grid electrodes. Fluorescent display tube.