JPS6136946U

JPS6136946U - fluorescent display tube

Info

Publication number: JPS6136946U
Application number: JP12205684U
Authority: JP
Inventors: 守遠竹
Original assignee: 鹿児島日本電気株式会社
Priority date: 1984-08-09
Filing date: 1984-08-09
Publication date: 1986-03-07

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図ａ，ｂは本考案の一実施例の平面区および３３
−Ｂ’断面におけるフィラメントからの電子と螢光体セ
グメントとの関係を示す断面図、第２図は従来の螢光表
示管の一例の一部破断斜視図、第３図ａ，ｂは従来の
螢光表示管の平面図およびＡ−Ａ’断面におけるフィラ
メントからの電子と螢光体セグメントとの関係を示す断
面図、第４図ａ，ｂは従来の大型螢光表示管でのスペー
サ枠沈みによるショート例を示す平面図及びＣ −Ｃ’
断面図、第５図は従来の大型螢光表示管での隣接枠との
ショート例を示す平面図である。１・・・陽極基板、２・・・螢光体セグメント、２ａ，
２ｂ・・・螢光体セグメント表示ムラ部、３・・・グリ
ッドメッシュ、３ａ，３ｂ・・・隣接桁部のグ
リッドメッシュ、４・・・フィラメント、５・・・上面
板、６・・・低融点ガラス、７・・・フィラメント支持
体、８・・・フィラメントタブ台、９・・・外部接続リ
ード、１０・・・グリッドメッシュ部を保持するスペー
サ枠、１０ａ，１０ｂ・・・隣接桁部のグリッドメンシ
ュ部を保持するスペーサ枠、１１・・・スペーサ枠整形
部。Figures 1a and 1b show the plane section and 33 of an embodiment of the present invention.
2 is a partially cutaway perspective view of an example of a conventional fluorescent display tube, and FIGS. A plan view of the fluorescent display tube and a cross-sectional view showing the relationship between electrons from the filament and the phosphor segments in the A-A' cross section. A plan view showing a short circuit example and C-C'
The sectional view and FIG. 5 are plan views showing an example of a short circuit with an adjacent frame in a conventional large fluorescent display tube. DESCRIPTION OF SYMBOLS 1... Anode substrate, 2... Fluorescent segment, 2a,
2b... Fluorescent segment display uneven part, 3... Grid mesh, 3 a, 3 b... Grid mesh of adjacent girder part, 4... Filament, 5... Top plate, 6...・Low melting point glass, 7... Filament support, 8... Filament tab stand, 9... External connection lead, 10... Spacer frame that holds the grid mesh part, 10a, 10b... Adjacent beams spacer frame for holding the grid mensch portion of the section, 11... spacer frame shaping section;

Claims

[Scope of utility model registration request]

An anode having a phosphor in an envelope formed by sealing an anode substrate and a top plate, a spacer disposed at a constant interval, a grid for controlling electron flow, and a phosphor having a filament as an electron emission source. A fluorescent display tube, characterized in that at least a part of the frame of the spacer is removed to facilitate electron incidence.