JPH025479Y2 - - Google Patents
Info
- Publication number
- JPH025479Y2 JPH025479Y2 JP1982088972U JP8897282U JPH025479Y2 JP H025479 Y2 JPH025479 Y2 JP H025479Y2 JP 1982088972 U JP1982088972 U JP 1982088972U JP 8897282 U JP8897282 U JP 8897282U JP H025479 Y2 JPH025479 Y2 JP H025479Y2
- Authority
- JP
- Japan
- Prior art keywords
- grid
- display
- electrons
- fluorescent display
- present
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000004020 conductor Substances 0.000 claims description 11
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 3
- 230000003116 impacting effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 125000006850 spacer group Chemical group 0.000 description 4
- 239000012141 concentrate Substances 0.000 description 2
- 239000006059 cover glass Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000005530 etching Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
Description
【考案の詳細な説明】
本考案は、螢光表示管に関し、特に文字、数
字、記号等を表示する螢光表示管の構造に関す
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a fluorescent display tube, and more particularly to the structure of a fluorescent display tube for displaying characters, numbers, symbols, etc.
螢光表示管の代表的な構造は、第1図に示すよ
うに、表示パターンを形成する螢光体層1、が形
成された陽極基板2とカバーガラス3とが封着さ
れ、真空気密容器を形成している。この真空気密
器内には、電子放射源としてのフイラメント4と
電子制御用グリツド5を設置し、これら各電極は
リード端子6,6′,6″,……を通じて外部と電
気的に接続する構造となつている。ここでグリツ
ド部構造について詳述すると、第2図に示す様に
一般にはグリツド5は厚さ0.05mm前後の薄い導電
性素材を用い外周部を除き、エツチングによるメ
ツシユ構造とし、溶接により厚さ0.2mm前後の厚
い枠状の導体支持部7(以下スペーサーと称す
る)に接着されている。 As shown in FIG. 1, a typical structure of a fluorescent display tube is that an anode substrate 2 on which a phosphor layer 1 forming a display pattern is formed and a cover glass 3 are sealed together, and a vacuum-tight container is formed. is formed. A filament 4 as an electron radiation source and an electronic control grid 5 are installed inside this vacuum sealed chamber, and each of these electrodes is electrically connected to the outside through lead terminals 6, 6', 6'', . . . Here, to explain the structure of the grid in detail, as shown in Fig. 2, the grid 5 is generally made of a thin conductive material with a thickness of about 0.05 mm, except for the outer periphery, and has a mesh structure by etching. It is bonded by welding to a thick frame-shaped conductor support part 7 (hereinafter referred to as a spacer) with a thickness of about 0.2 mm.
しかしながら最近、螢光表示管の用途が拡大
し、車載用等の螢光表示管には従来にない高輝度
が要求されているが、これに伴い、陽極、グリツ
ドへの電子入力を高くする必要が生じている。こ
の時、問題となるのはグリツドへの入力が増加す
るに伴い、グリツドが加熱され熱変形を生じ、表
示ムラ等の不具合を生じやすい点である、この不
具合は、フイラメント方向のグリツドの両端に生
じやすい。これは、真下にグリツドのないフイラ
メント部からの電子が、グリツドの端部に集中す
る為である。 However, recently, the uses of fluorescent display tubes have expanded, and fluorescent display tubes for use in automobiles, etc. are required to have higher brightness than ever before, and along with this, it is necessary to increase the electronic input to the anode and grid. is occurring. At this time, the problem is that as the input to the grid increases, the grid heats up and becomes thermally deformed, which tends to cause problems such as display unevenness.This problem occurs at both ends of the grid in the filament direction. Easy to occur. This is because electrons from the filament part, which does not have a grid directly below, concentrate at the end of the grid.
本考案の目的は上述の欠点を除去し、表示ムラ
の改善された螢光表示管を提供することにある。 An object of the present invention is to eliminate the above-mentioned drawbacks and provide a fluorescent display tube with improved display unevenness.
本考案によればグリツドの熱変形する部分に隣
接して、電気的に制御された導体部を設置し、こ
の導体部に電子を分散入力させることにより、グ
リツドの変形部分への電子入力の集中を防ぎ、グ
リツドの熱変形を緩和することにより、表示ムラ
の改善された螢光表示管を得ることができる。 According to the present invention, an electrically controlled conductor section is installed adjacent to the thermally deformed part of the grid, and by dispersing the input of electrons into this conductor part, the electron input is concentrated on the deformed part of the grid. By preventing this and alleviating the thermal deformation of the grid, a fluorescent display tube with improved display unevenness can be obtained.
以下、図面を用いて本考案を具体的に説明す
る。第3図は、本考案の実施例を示す、破断斜視
図である。第4図は従来構造における電子の流れ
を示す模式図であり、第5図は本考案実施例にお
ける電子の流れを示す模式図である。 Hereinafter, the present invention will be specifically explained using the drawings. FIG. 3 is a cutaway perspective view showing an embodiment of the present invention. FIG. 4 is a schematic diagram showing the flow of electrons in the conventional structure, and FIG. 5 is a schematic diagram showing the flow of electrons in the embodiment of the present invention.
本考案によれば、第3図において従来のグリツ
ド部(以下表示部グリツドと称する)5に隣接し
て導体部8を形成し、かつ適当な正電位を与え
る。この時、従来構造では第4図からわかる様に
表示部グリツド端部9に電子10が集中し表示部
グリツド端部9の温度が上昇し、熱変形が生じや
すいが、本考案の実施例では第5図からわかる様
に電子10が導体部8に分散されるため、表示部
グリツド端部9への電子集中が無くなり表示部グ
リツド端部9の熱変形が著しく緩和される。また
第6図は本考案の他の実施例であるが、この場合
は表示部グリツド5のスペーサーを外側に延長し
てその上に表示部グリツド5と同じくメツシユ状
構造の導体部グリツド8を溶接している。第6図
の実施例では導体部グリツド8に電子が集中する
ため熱変形が生じやすくなるが導体部グリツドと
表示部グリツドとは分離して、スペーサーに溶接
したほうが良い。とされているので、表示部グリ
ツドへの熱変形の影響は軽減される。 According to the present invention, a conductor section 8 is formed adjacent to the conventional grid section (hereinafter referred to as display section grid) 5 in FIG. 3, and is applied with a suitable positive potential. At this time, in the conventional structure, as can be seen from FIG. 4, electrons 10 are concentrated at the end 9 of the display grid, the temperature of the end 9 of the display grid increases, and thermal deformation is likely to occur.However, in the embodiment of the present invention, As can be seen from FIG. 5, since the electrons 10 are dispersed in the conductor portion 8, there is no concentration of electrons at the end portion 9 of the display grid, and thermal deformation of the end portion 9 of the display grid is significantly alleviated. FIG. 6 shows another embodiment of the present invention, in which the spacer of the display grid 5 is extended outward, and a conductor grid 8 having a mesh-like structure similar to the display grid 5 is welded onto it. are doing. In the embodiment shown in FIG. 6, electrons concentrate on the conductor grid 8, which tends to cause thermal deformation, but it is better to separate the conductor grid and the display grid and weld them to the spacer. Therefore, the influence of thermal deformation on the display grid is reduced.
第1図は一般的に知られている螢光表示管の構
造を示す破断斜視図。第2図はグリツド部の一般
的構造を示す破断斜視図。第3図は本考案の一実
施例を示す破断斜視図。第4図は従来構造におけ
る電子の流れを示す模式図。第5図は本考案の実
施例における電子の流れを示す模式図。第6図は
本考案の他の実施例を示す破断斜視図。
1……表示部螢光体層、2……陽極基板、3…
…カバーガラス、4……フイラメント、5……表
示部グリツド、6,6′,6″……リード端子、7
……スペーサー、8……導体部、9……表示部グ
リツド端部(熱変形が生じやすい箇所)、10…
…電子の流れを模式的に示したもの。
FIG. 1 is a cutaway perspective view showing the structure of a generally known fluorescent display tube. FIG. 2 is a cutaway perspective view showing the general structure of the grid section. FIG. 3 is a cutaway perspective view showing one embodiment of the present invention. FIG. 4 is a schematic diagram showing the flow of electrons in a conventional structure. FIG. 5 is a schematic diagram showing the flow of electrons in an embodiment of the present invention. FIG. 6 is a cutaway perspective view showing another embodiment of the present invention. 1... Display portion phosphor layer, 2... Anode substrate, 3...
...Cover glass, 4...Filament, 5...Display grid, 6, 6', 6''...Lead terminal, 7
... Spacer, 8 ... Conductor section, 9 ... Display grid end (place where thermal deformation is likely to occur), 10 ...
...A schematic representation of the flow of electrons.
Claims (1)
により加速制御し、陽極セグメントに形成された
螢光体層を衝撃することにより数字や記号を発光
表示する螢光表示管において、前記グリツドの近
傍に電気的に制御された別の導体部を前記グリツ
ドと離間して形成したことを特徴とする高輝度螢
光表示管。 In a fluorescent display tube that displays numbers and symbols by accelerating and controlling thermoelectrons emitted from a filament using a grid and impacting a phosphor layer formed on an anode segment, there is an electrically connected wire near the grid. A high brightness fluorescent display tube, characterized in that a controlled separate conductor section is formed spaced apart from the grid.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8897282U JPS58193446U (en) | 1982-06-15 | 1982-06-15 | fluorescent display tube |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8897282U JPS58193446U (en) | 1982-06-15 | 1982-06-15 | fluorescent display tube |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS58193446U JPS58193446U (en) | 1983-12-22 |
JPH025479Y2 true JPH025479Y2 (en) | 1990-02-09 |
Family
ID=30097621
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8897282U Granted JPS58193446U (en) | 1982-06-15 | 1982-06-15 | fluorescent display tube |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS58193446U (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS569230U (en) * | 1979-06-30 | 1981-01-27 |
-
1982
- 1982-06-15 JP JP8897282U patent/JPS58193446U/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS569230U (en) * | 1979-06-30 | 1981-01-27 |
Also Published As
Publication number | Publication date |
---|---|
JPS58193446U (en) | 1983-12-22 |
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