JPS6321882Y2 - - Google Patents
Info
- Publication number
- JPS6321882Y2 JPS6321882Y2 JP426279U JP426279U JPS6321882Y2 JP S6321882 Y2 JPS6321882 Y2 JP S6321882Y2 JP 426279 U JP426279 U JP 426279U JP 426279 U JP426279 U JP 426279U JP S6321882 Y2 JPS6321882 Y2 JP S6321882Y2
- Authority
- JP
- Japan
- Prior art keywords
- glass
- insulating layer
- substrate
- display tube
- 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
- 239000011521 glass Substances 0.000 claims description 30
- 239000000758 substrate Substances 0.000 claims description 18
- 239000006059 cover glass Substances 0.000 claims description 11
- 239000003513 alkali Substances 0.000 claims description 10
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 7
- 239000003566 sealing material Substances 0.000 claims description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 3
- 229910000679 solder Inorganic materials 0.000 description 13
- 238000007789 sealing Methods 0.000 description 6
- 238000009413 insulation Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000006866 deterioration Effects 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 229910001415 sodium ion Inorganic materials 0.000 description 2
- 238000007496 glass forming Methods 0.000 description 1
- 229910000464 lead oxide Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- YEXPOXQUZXUXJW-UHFFFAOYSA-N oxolead Chemical compound [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
Landscapes
- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
- Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
- Joining Of Glass To Other Materials (AREA)
Description
【考案の詳細な説明】
本考案は気密封着構造の表示管の構造に関し、
とくに平型螢光表示管に関する。密封構造の表示
管、とくに螢光表示管は、見易く、低電圧で駆動
できる表示管として近年急速に普及して来ている
が、電気オーブンや暖房器具のタイマーや、時計
表示用または自動車搭載用機器の表示用として比
較的高温中で使用するためには現在の設計では十
分な品質ではないことが判つて来た。以下特に螢
光表示管について図面を参照しながら説明する
が、本願は螢光表示管に限定されるものではな
い。[Detailed description of the invention] The present invention relates to the structure of a display tube with an airtight sealing structure.
In particular, it relates to flat fluorescent display tubes. Display tubes with a sealed structure, especially fluorescent display tubes, have rapidly become popular in recent years as display tubes that are easy to read and can be driven at low voltage. It has been found that current designs are not of sufficient quality for use in relatively high temperatures for equipment displays. In the following, a fluorescent display tube will be specifically explained with reference to the drawings, but the present application is not limited to fluorescent display tubes.
従来の螢光表示管は例えば第1図および第2図
に示すように基板ガラス1を加工して陽極基板を
つくり、これとカバーガラス2とをソルダーガラ
ス3により封着してつくられる。具体的には、先
づ基板ガラス1上に給電用内部リード線4が配置
されこの上に絶縁層5をかけ、給電用リード線4
と表示セグメント6とを絶縁層5の一部に設けた
スルーホール7により電気的に接続させ、別のス
ルーホール7′により外部給電用リード線8に引
出し、更に表示セグメント上に螢光体層9を付着
させグリツド10、フイラメント11の各電極を
設けて形成される。 A conventional fluorescent display tube is manufactured, for example, as shown in Fig. 1 and Fig. 2, by processing a substrate glass 1 to make an anode substrate, and then sealing this with a cover glass 2 with a solder glass 3. Specifically, first, a power supply internal lead wire 4 is arranged on the substrate glass 1, an insulating layer 5 is placed on top of this, and the power supply lead wire 4 is sealed.
The display segments 6 are electrically connected to each other via through holes 7 provided in a part of the insulating layer 5, and are led out to an external power supply lead wire 8 via another through hole 7'. A phosphor layer 9 is then attached onto the display segments, and electrodes of a grid 10 and filaments 11 are provided to form the display segments.
従来、この種の表示管の欠点は室温雰囲気での
動作では実用上問題はないが、高温で長時間動作
させるとリード間の絶縁劣化を起す点にある。こ
の理由は通常基板ガラス1に安価なソーダガラス
を用いるため基板ガラス1からのNaがソルダー
ガラス3へ拡散し、高温動作中電位の低いリード
へNaイオンとして移動するものと考えられる。
このNaイオンはソルダーガラス3中の酸化鉛を
還元させ、金属鉛が析出し(樹枝状に析出)絶縁
劣化を惹起するものと考えられる。 Conventionally, a drawback of this type of display tube is that although there is no practical problem when operating at room temperature, insulation between the leads deteriorates when operating at high temperature for a long time. The reason for this is thought to be that because inexpensive soda glass is normally used for the substrate glass 1, Na from the substrate glass 1 diffuses into the solder glass 3 and moves as Na ions to the leads with a low potential during high-temperature operation.
It is thought that this Na ion reduces lead oxide in the solder glass 3, causing metal lead to precipitate (precipitate in a dendritic form) and cause insulation deterioration.
本考案の目的は、この従来の欠点を改善し、電
気オーブン用、暖房器具用や自動車搭載用等の表
示管を完成する1つの改善手段を提供することに
ある。 The purpose of the present invention is to overcome these conventional drawbacks and provide an improved means for completing display tubes for electric ovens, heaters, automobiles, and the like.
本考案によればアルカリ成分含有率が1%以下
(重量%)の絶縁層を介してソーダガラスから成
るガラス基板とカバーガラスとを封着材により封
着し、かつこの封着剤中を貫通するリード線を有
することを特徴とする表示管が得られる。すなわ
ち本考案の要旨は、基板ガラスからソルダーガラ
スへのNaの拡散を防止するため絶縁劣化の起し
易い個所の基板ガラスをアルカリ成分の重量比含
有率が1%以下の絶縁層で隠蔽するものである。
具体的には絶縁層をカバーガラス内側部より封着
部内部へ広くかけることにより効果を発揮する。
とくに本考案によれば、ガラス基板に給電用リー
ド配線を施し、このリード配線上に絶縁層を形成
し、この絶縁層上にリード配線に接続された表示
セグメントを形成した加工陽極基板と、この加工
陽極基板と真空気密容器を形成するカバーガラス
とを、カバーガラス内部にグリツドやフイラメン
ト等の電極を配置して、ソルダーガラスで封着し
て成る螢光表示管に於て、前述の加工陽極基板に
形成する絶縁層としてアルカリ成分含有率が1%
以下(重量%)の材料を選び、絶縁層の少くとも
1部がカバーガラスのソルダーガラス封着部内に
まで形成されたことを特徴とする螢光表示管が得
られる。 According to the present invention, a glass substrate made of soda glass and a cover glass are sealed with a sealing material through an insulating layer having an alkali content of 1% or less (by weight), and the sealing material is penetrated. A display tube is obtained, which is characterized by having lead wires that provide a lead wire. In other words, the gist of the present invention is to hide the substrate glass in areas where insulation deterioration is likely to occur with an insulating layer with an alkali content of 1% or less by weight in order to prevent the diffusion of Na from the substrate glass to the solder glass. It is.
Specifically, the effect is achieved by spreading the insulating layer more widely inside the sealing part than inside the cover glass.
Particularly, according to the present invention, there is provided a processed anode substrate in which power supply lead wiring is provided on a glass substrate, an insulating layer is formed on the lead wiring, and display segments connected to the lead wiring are formed on the insulating layer; In a fluorescent display tube in which a processed anode substrate and a cover glass forming a vacuum-tight container are sealed with solder glass with electrodes such as grids and filaments arranged inside the cover glass, the above-mentioned processed anode The alkali component content is 1% as an insulating layer formed on the substrate.
A fluorescent display tube characterized in that at least a part of the insulating layer is formed within the solder glass sealing part of the cover glass is obtained by selecting the following materials (in weight %):
次に本考案の一実施例につき説明する。即ち第
3図は本考案の実施例を示しガラス基板1に絶縁
層5がカバーガラスの内側部P点から封着部内迄
広くかけてある。その他の構成に於ては従来と同
様であるが、従来と異なりガラス基板上の少くと
もソルダーガラス3に対応する部分をアルカリ成
分含有率が1%以下(重量%)の絶縁層で隠蔽す
ることによつてガラス基板1からソルダーガラス
3へのNaの拡散を防止する効果が出る。したが
つて、第1図、第2図に示した従来の絶縁層5
(アルカリ成分は約1%)を封着部領域まで延長
して設けても用様の効果が得られる。 Next, one embodiment of the present invention will be described. That is, FIG. 3 shows an embodiment of the present invention, in which an insulating layer 5 is widely spread over a glass substrate 1 from a point P inside the cover glass to the inside of the sealing part. The rest of the structure is the same as the conventional one, but unlike the conventional one, at least the part of the glass substrate corresponding to the solder glass 3 is covered with an insulating layer with an alkali content of 1% or less (wt%). This has the effect of preventing the diffusion of Na from the glass substrate 1 to the solder glass 3. Therefore, the conventional insulating layer 5 shown in FIGS.
(The alkaline component is about 1%) can be provided extending to the sealing area to obtain the desired effect.
例えば第4図は表示管が高温動作中に於て通常
数1000MΩ以上ある端子間の絶縁抵抗が100KΩに
劣化する時間と温度との関係を示すものである。
Aの直線は従来の構造の表示管、Bの直線は本考
案による構造の表示管の特性を夫々示し、本考案
の構造が従来に比べ優れていることが判る。本考
案の主眼はアルカリ分をソルダーガラス中に導入
しないようにするものであるから、ソルダーガラ
ス中のアルカリ成分及び絶縁層中のアルカリ成分
は極力少くする必要があり、絶縁層中のアルカリ
成分に対しては1%程度迄で同様の効果が期待出
来るがソルダーガラス中のアルカリ成分は混入を
全く認めない方向が望ましい。なお、カバーガラ
ス2にもアルカリ成分が多ければ、基板ガラスと
同様の処理を施せば良いことは言うまでもない。 For example, FIG. 4 shows the relationship between time and temperature during which the insulation resistance between the terminals, which is normally several 1000 MΩ or more, deteriorates to 100 KΩ when the display tube is operated at high temperatures.
The straight line A shows the characteristics of the display tube with the conventional structure, and the straight line B shows the characteristics of the display tube with the structure according to the present invention, and it can be seen that the structure of the present invention is superior to the conventional structure. Since the main purpose of this invention is to prevent the introduction of alkali components into the solder glass, it is necessary to reduce the alkali components in the solder glass and the alkali components in the insulating layer as much as possible. Although similar effects can be expected with up to about 1% of the alkali component in the solder glass, it is desirable that the alkali component in the solder glass should not be mixed in at all. It goes without saying that if the cover glass 2 also contains a large amount of alkaline components, it may be subjected to the same treatment as the substrate glass.
以上、実施例について本考案を説明して来た
が、表示管の用途や実施形状により本考案が限定
されるものでないことは明らかである。 Although the present invention has been described above with reference to embodiments, it is clear that the present invention is not limited by the use or implementation shape of the display tube.
第1図は従来の表示管の一部破断斜視図を示
す。第2図は第1図の一部断面図を示す。第3図
は本考案による表示管の断面図を示す。第4図は
従来の表示管と本考案による表示管の端子間絶縁
抵抗の動作劣化特性の比較を示すグラフである。
1……基板ガラス、2……カバーガラス、3…
…ソルダーガラス、4……内部給電用リード線、
5……絶縁層、6……表示セグメント、7……ス
ルーホール、8……外部給電用リード線、9……
螢光体層、10……グリツド、11……フイラメ
ント、P……カバーガラス内側部。
FIG. 1 shows a partially cutaway perspective view of a conventional display tube. FIG. 2 shows a partial sectional view of FIG. FIG. 3 shows a sectional view of a display tube according to the present invention. FIG. 4 is a graph showing a comparison of operational deterioration characteristics of insulation resistance between terminals of a conventional display tube and a display tube according to the present invention. 1...Substrate glass, 2...Cover glass, 3...
...Solder glass, 4...Internal power supply lead wire,
5... Insulating layer, 6... Display segment, 7... Through hole, 8... Lead wire for external power supply, 9...
Phosphor layer, 10...Grid, 11...Filament, P...Inner part of cover glass.
Claims (1)
縁層を介してソーダガラスから成るガラス基板と
カバーガラスとを封着材により封着し、かつ前記
封着剤中を貫通するリード線を有することを特徴
とする表示管。 A glass substrate made of soda glass and a cover glass are sealed with a sealing material through an insulating layer having an alkali component content of 1% or less (wt%), and a lead wire is provided that penetrates through the sealing material. A display tube characterized by:
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP426279U JPS6321882Y2 (en) | 1979-01-17 | 1979-01-17 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP426279U JPS6321882Y2 (en) | 1979-01-17 | 1979-01-17 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55106637U JPS55106637U (en) | 1980-07-25 |
JPS6321882Y2 true JPS6321882Y2 (en) | 1988-06-16 |
Family
ID=28809036
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP426279U Expired JPS6321882Y2 (en) | 1979-01-17 | 1979-01-17 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6321882Y2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61272797A (en) * | 1985-05-28 | 1986-12-03 | 三菱電機株式会社 | Voice recognition equipment |
-
1979
- 1979-01-17 JP JP426279U patent/JPS6321882Y2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS55106637U (en) | 1980-07-25 |
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