JPS63241847A - Fluorescent character display tube - Google Patents
Fluorescent character display tubeInfo
- Publication number
- JPS63241847A JPS63241847A JP7532087A JP7532087A JPS63241847A JP S63241847 A JPS63241847 A JP S63241847A JP 7532087 A JP7532087 A JP 7532087A JP 7532087 A JP7532087 A JP 7532087A JP S63241847 A JPS63241847 A JP S63241847A
- Authority
- JP
- Japan
- Prior art keywords
- anode
- pad
- electrodeposition
- wiring
- insulating layer
- 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.)
- Pending
Links
- 239000000758 substrate Substances 0.000 claims abstract description 40
- 238000004070 electrodeposition Methods 0.000 claims abstract description 28
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000004020 conductor Substances 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 4
- 239000006059 cover glass Substances 0.000 claims description 2
- 239000002245 particle Substances 0.000 abstract description 5
- 239000010409 thin film Substances 0.000 abstract description 4
- 239000008151 electrolyte solution Substances 0.000 abstract description 2
- 229910052751 metal Inorganic materials 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 238000001962 electrophoresis Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000009740 moulding (composite fabrication) Methods 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
Landscapes
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は蛍光表示管に関し、特にドライバーＩＣを同一
基板上の同一真空容器内に内臓した構造を有する蛍光表
示管に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a fluorescent display tube, and more particularly to a fluorescent display tube having a structure in which a driver IC is housed on the same substrate and in the same vacuum container.
従来、ドツトキャラクタ表示用、ドツトグラフィック表
示用の蛍光表示管の陽極は、ドツト状に配列された陽極
パッド上に例えばＺｎＯ：Ｏで表わされる低速電子線用
蛍光体粒子を電気泳動法で被着させる方法が一般的であ
った。ドライバーＩＣを同一基板上の同一真空容器内に
内蔵したいわゆるチップイングラス（以下Ｃ−Ｉ−Ｇと
記す）蛍光表示管は、外部リード数の大幅な減少、ドラ
イバーＩＣを内蔵することによるプリント基板の小形化
といった特徴が最大限に活かせるため、ドツトグラフィ
ック表示用として開発され、すでに量産期に入っている
。Conventionally, the anode of a fluorescent display tube for displaying dot characters or dot graphics is made by depositing phosphor particles for slow electron beams, such as ZnO:O, on an anode pad arranged in a dot shape by electrophoresis. The common method was to The so-called chip-in-glass (hereinafter referred to as C-I-G) fluorescent display tube, which has a driver IC built into the same vacuum container on the same substrate, has a large reduction in the number of external leads and a printed circuit board with a built-in driver IC. It was developed for use in dot-graphic displays to take full advantage of its features such as miniaturization, and is already in mass production.
第４図は従来の蛍光表示管の陽極基板の一例を示す上面
図である。FIG. 4 is a top view showing an example of an anode substrate of a conventional fluorescent display tube.
第４図に示すように、Ｃ・■・Ｇ蛍光表示管では陽極パ
ッド２８に電圧を印加させる為には陽極ドライバーＩＣ
２２を実際に駆動させるか或いは陽極ドライバーＩＣ２
２の出力パッドに対応する陽極基板２１上のパッドに電
着用端子を接触させて印加する必要がある。しかしなが
ら、前者の方法では陽極ドライバーＩＣ２２の耐圧、耐
薬品性の制約から、一方、後者の方法では高い接触抵抗
の障害から実用性２量産性が無かった。これらの制約か
ら逃れる為に、従来のＣ−Ｉ−Ｇ蛍光表示管では陽極基
板２１に電着用外部端子３２を設けた構造を採用するこ
とで対処してきた。説明を簡単にするため、陽極基板２
１では主に、ガラス基板上に蒸着或いはスパッタ法で薄
膜を被着し、写真蝕刻法でパターンを形成したアルミニ
ウム薄膜から成る陽極パッド２８．陽極配線２７．陽極
ポンディングパッド２６．および陽極ドライバーＩＣ２
２について表わした。又、陽極パッド２８は簡単のため
３×４のドツトマトリックスとした。さて陽極基板２１
上の陽極ドライバーＩＣ２２からポンディグワイヤー２
５．陽極ポンディングパッド２６．陽極配線２７を介し
て陽極ドライバーＩＣ２２は陽極ボンクィングパッドを
経て陽極パッド２８に接続され、３×４のドツトマトリ
ックスの一群を経てさらに隣の一群へと陽極配線２７で
接続されている。陽極ドライバーＩＣ２２から最も離れ
た右端の陽極パッド２８の一群から出た陽極配線２７は
陽極基板２１上方に配線され基板端面に設置された電着
用外部端子３２に接続されている。基板右側にはグリッ
ドドライバーＩＣ２３，およびこのグリッドドライバー
ＩＣ２３への電源電位、接地電位、信号用のグリッド配
線３０およびグリッド外部端子３３さらにはグリッド配
線３０が密集しており、電着用外部端子３２は陽極基板
２１上端面に配置せざるを得なかった。蛍光体電着後、
電着外部端子３２は不要となるので二点鎖線で示した切
断ライン３３で切り離す。切断される不要部には例えば
３×４のドツトマトリックスの場合１２本の配線を配置
せねばならず不要部の面積を増大させ基板製造コストの
上昇をもたらしていた。As shown in FIG. 4, in C, ■, and G fluorescent display tubes, in order to apply voltage to the anode pad 28, an anode driver IC is used.
22 or anode driver IC2.
It is necessary to apply the voltage by bringing the electrode terminal into contact with the pad on the anode substrate 21 corresponding to the output pad No. 2. However, the former method was not practical or mass-producible due to limitations in pressure resistance and chemical resistance of the anode driver IC 22, while the latter method was impractical due to high contact resistance. In order to escape from these restrictions, conventional C-I-G fluorescent display tubes have adopted a structure in which the anode substrate 21 is provided with an external terminal 32 for electrodeposition. To simplify the explanation, the anode substrate 2
1, the anode pad 28 is mainly made of an aluminum thin film formed by depositing a thin film on a glass substrate by vapor deposition or sputtering, and forming a pattern by photolithography. Anode wiring 27. Anode bonding pad 26. and anode driver IC2
2 is expressed. Further, the anode pad 28 was formed into a 3×4 dot matrix for simplicity. Now, the anode substrate 21
Ponding wire 2 from upper anode driver IC22
5. Anode bonding pad 26. The anode driver IC 22 is connected to an anode pad 28 via an anode bonding pad via an anode wiring 27, and further connected to an adjacent group via a group of 3×4 dot matrices. Anode wiring 27 coming out from a group of anode pads 28 at the right end farthest from the anode driver IC 22 is wired above the anode substrate 21 and connected to an external electrode terminal 32 installed on the end surface of the substrate. On the right side of the board, there are a grid driver IC 23, a power supply potential, a ground potential, and a signal grid wiring 30 and a grid external terminal 33 for the grid driver IC 23, as well as a grid wiring 30, and the electrode external terminal 32 is an anode. It had to be placed on the upper end surface of the substrate 21. After phosphor electrodeposition,
Since the electrodeposited external terminal 32 is no longer needed, it is cut off along the cutting line 33 shown by the two-dot chain line. For example, in the case of a 3.times.4 dot matrix, 12 wires must be placed in the unnecessary portion to be cut, which increases the area of the unnecessary portion and increases the cost of manufacturing the board.
〔発明が解決しようとする問題点〕・
上述したように、従来のＣ・■・Ｇ蛍光表示管では、電
着用外部端子を陽極基板上に配置しているなめ、不要部
分の占有面積が広く、更に、余分な電着用の配線や外部
端子等を必用とし、外部端子の切り離しにも工数を要す
るなど陽極基板の製造コストの上昇をもたらしていた。[Problems to be solved by the invention] As mentioned above, in the conventional C, ■, and G fluorescent display tubes, the external terminals for electrodeposition are arranged on the anode substrate, so the area occupied by unnecessary parts is large. Furthermore, extra wiring for electrodes, external terminals, etc. are required, and it also requires a lot of man-hours to separate the external terminals, resulting in an increase in the manufacturing cost of the anode substrate.
従って、電着用外部端子およびこれに接続する陽極配線
のレイアウトの早急な解決が問題点となっていた。Therefore, it has been a problem to quickly solve the layout of the external electrode terminal and the anode wiring connected thereto.
本発明の目的は、不要部分の占有面積がなく、余分な電
着用の配線や外部端子を必用とせず、外部端子の切り離
し工数を無くし、製造コストを大幅に低減出来る陽極基
板を有するＣ・■・Ｇ蛍光表示管を提供することにある
。The object of the present invention is to have an anode substrate that does not occupy an area occupied by unnecessary parts, does not require extra electrode wiring or external terminals, eliminates the number of steps required to disconnect external terminals, and can significantly reduce manufacturing costs.・Providing G fluorescent display tubes.
本発明の蛍光表示管は、ガラス基板上に陽極パッドと該
陽極パッドに接続する陽極配線とグリッド配線と前記陽
極配線と前記グリッド配線を被覆する絶縁層と該絶縁層
（二股けられ前記陽極パッドに接続する該陽極パッドに
形成された蛍光体表示部が形成された陽極基板と、該陽
極基板に対して間隔をおいて張られたフィラメントと、
前記陽極基板と前記フィラメントの中間に配置され前記
グリッド配線に接続する電流制御用のグリッドと、前記
陽極基板に封着される透明なカバーガラスとを有する蛍
光表示管において、前記陽極基板上に前記陽極パッドと
電気的に接続する一群の電着用陽極パッドを設けて絶縁
層で覆い、前記電着用陽極パッドに達する貫通孔を設け
、前記電着用陽極パッドに接続し、かつ前記絶縁層の表
面から突、出する導電体の電着用突出部を設けることに
より構成される。The fluorescent display tube of the present invention includes an anode pad on a glass substrate, an anode wiring connected to the anode pad, a grid wiring, an insulating layer covering the anode wiring and the grid wiring, and an insulating layer (divided into two, and the anode pad an anode substrate having a phosphor display portion formed on the anode pad connected to the anode pad; a filament stretched at a distance from the anode substrate;
In the fluorescent display tube, the fluorescent display tube includes a current control grid disposed between the anode substrate and the filament and connected to the grid wiring, and a transparent cover glass sealed to the anode substrate. A group of anode pads for electrodeposition that are electrically connected to the anode pads are provided and covered with an insulating layer, and a through hole is provided that reaches the anode pads for electrodeposition, and is connected to the anode pads for electrodeposition, and from the surface of the insulating layer. It is constructed by providing a protrusion for electrodeposition of the conductor which protrudes.
〔実施例〕 次に本発明について図面を参照して説明する。〔Example〕 Next, the present invention will be explained with reference to the drawings.
第１図は本発明の第１の実施例の陽極基板の上面図であ
る。FIG. 1 is a top view of an anode substrate according to a first embodiment of the present invention.
第１図に示すように、陽極基板１の左側に陽極ドライバ
ーＩＣ２，右側にはグリッドドライバーＩＣ３が配置さ
れている。陽極ドライバーＩＣ２には外部端子４から電
源電位、接地電位、各種入力信号が供給される。陽極ド
ライバーＩＣ２からの出力は、ボンディングワイヤー５
．陽極ポンディングパッド６、陽極配線７を経て第１群
の陽極バッド８に接続されている。陽極配線７は、さら
に第２群、第３群の陽極パッド８に接続され、最も右側
の陽極パッド８を経てさらに陽極基板１の右側に延長さ
れ、電着用陽極バッド９へ接続する。As shown in FIG. 1, an anode driver IC 2 is arranged on the left side of an anode substrate 1, and a grid driver IC 3 is arranged on the right side. The anode driver IC 2 is supplied with a power supply potential, a ground potential, and various input signals from an external terminal 4. The output from the anode driver IC2 is the bonding wire 5.
．． It is connected to the first group of anode pads 8 via an anode bonding pad 6 and anode wiring 7. The anode wiring 7 is further connected to the second and third groups of anode pads 8, further extended to the right side of the anode substrate 1 via the rightmost anode pad 8, and connected to an anode pad 9 for electrodeposition.
第２図は本発明の第１の実施例の陽極基板の断面図であ
る。FIG. 2 is a sectional view of the anode substrate of the first embodiment of the present invention.
第２図に示すように、陽極基板１上にはアルミニウム薄
膜から成る陽極配線７が形成され、陽極パッド８を経て
電着用陽極パッド９に接続している。これらの陽極配線
７は絶縁層１２に覆われ、陽極パッド８は絶縁層１２に
形成されたスルーホール１３を介して蛍光体表示部１４
と接続している。この蛍光体表示部１４とは別に形成さ
れている電着用陽極パッドっけ同様に絶縁層１２に形成
されたスルーホール１３を介して電着用突起部１５に接
続している。この電着用突起部１５は絶縁層１２の表面
から突出るように形成されている。電着用突起部１５は
導電性物質で形成するが、導電性物質としてグラファイ
トペースト或いは銀ペースト等が適している。このよう
にして形成された電着用突起部１５に金属端子或いは導
電性ゴム端子等を接触し、蛍光体粒子を懸濁させた電解
質溶液中で約２００■の電圧を印加し、蛍光体表示部１
４に蛍光体粒子を被着させる。この方法では電着用突起
部１５が突出しているので容易に電気的な接触がとれ、
製造歩留りや信頼性の向上にもつながる。As shown in FIG. 2, an anode wiring 7 made of an aluminum thin film is formed on the anode substrate 1 and connected to an anode pad 9 for electrodeposition via an anode pad 8. As shown in FIG. These anode wirings 7 are covered with an insulating layer 12, and the anode pads 8 are connected to a phosphor display section 14 through a through hole 13 formed in the insulating layer 12.
is connected to. The anode pad for electrodeposition formed separately from the phosphor display section 14 is connected to the protrusion 15 for electrodeposition via a through hole 13 formed in the insulating layer 12 similarly. The electrodeposition protrusion 15 is formed to protrude from the surface of the insulating layer 12. The electrodeposition protrusion 15 is formed of a conductive material, and graphite paste, silver paste, or the like is suitable as the conductive material. A metal terminal or a conductive rubber terminal is brought into contact with the electrodeposition protrusion 15 formed in this manner, and a voltage of about 200 μ is applied in an electrolyte solution in which phosphor particles are suspended. 1
4 is coated with phosphor particles. In this method, since the protrusion 15 for electrodeposition protrudes, electrical contact can be easily made.
This also leads to improvements in manufacturing yield and reliability.
第３図は本発明の第２の実施例の陽極基板の上面図であ
るつ
第３図に示すように、陽極パッド８とグリッドドライバ
ーＩＣ３の間隔が狭い場合にはこの間を避けた場所に、
かつマトリックス状ではなく直線的に電着用陽極パッド
９を配列することも可能である。FIG. 3 is a top view of the anode substrate of the second embodiment of the present invention. As shown in FIG.
Furthermore, it is also possible to arrange the anode pads 9 for electrodeposition linearly instead of in a matrix.
以上説明したように、本発明は、陽極基板上に蛍光体電
着用の電着用突起部を設けることにより、不要部分の占
有面積がなく、余分な電着用の配線や外部端子を必用と
せず、外部端子の切り離し工数を無くし製造コストを大
幅に低減出来る効果がある。As explained above, the present invention provides electrodeposition protrusions for phosphor electrodeposition on the anode substrate, thereby eliminating the need for unnecessary areas and eliminating the need for extra wiring or external terminals for electrodeposition. This has the effect of eliminating the need for disconnecting external terminals and significantly reducing manufacturing costs.
第１図は本発明の第１の実施例の陽極基板の上面図、第
２図は本発明の第１の実施例の陽極基板の断面図、第３
図は本発明の第２の実施例の陽極基板の上面図、第４図
は従来の蛍光表示管の陽極基板の一例を示す上面図であ
る。
１・・・陽極基板、２・・・陽極ドライバーＩＣｌ３・
・・グリッドドライバーＩＣ１４・・・外部端子、５・
・・ボンディングワイヤー、６・・・陽極ポンディング
パッド、７・・・陽極配線、８・・・陽極パッド、９・
・・電着用陽極パッド、１０・・・グリッド配線、１１
・・・グリッドポンディングパッド、１２・・・絶縁層
、１３・・・スルーホール、１４・・・蛍光体表示部、
１５・・・電着用突起部、２１・・・陽極基板、２２・
・・陽極ドライバーＩＣ１２３・・・グリッドドライバ
ーＩＣ１２４・・・外部端子、２５・・・ボンディング
ワイヤー、２６・・・陽極ポンディングパッド、２７・
・・陽極配線、２８・・・陽極パッド、３０・・・グリ
ッド配線、３１・・・グリッドポンディングパッド、３
２・・・電着用外部端子、３３・・・切断ライン。FIG. 1 is a top view of the anode substrate of the first embodiment of the present invention, FIG. 2 is a sectional view of the anode substrate of the first embodiment of the present invention, and FIG.
This figure is a top view of an anode substrate according to a second embodiment of the present invention, and FIG. 4 is a top view showing an example of an anode substrate of a conventional fluorescent display tube. 1... Anode substrate, 2... Anode driver ICl3.
...Grid driver IC14...external terminal, 5.
... bonding wire, 6... anode bonding pad, 7... anode wiring, 8... anode pad, 9...
...Anode pad for electrodeposition, 10...Grid wiring, 11
... Grid bonding pad, 12 ... Insulating layer, 13 ... Through hole, 14 ... Phosphor display section,
15... Protrusion for electrodeposition, 21... Anode substrate, 22...
... Anode driver IC123... Grid driver IC124... External terminal, 25... Bonding wire, 26... Anode bonding pad, 27...
... Anode wiring, 28... Anode pad, 30... Grid wiring, 31... Grid bonding pad, 3
2... External terminal for electrode, 33... Cutting line.
Claims (1)
極配線とグリッド配線と前記陽極配線と前記グリッド配
線を被覆する絶縁層と該絶縁層に設けられ前記陽極パッ
ドに接続する該陽極パッドに形成された蛍光体表示部が
形成された陽極基板と、該陽極基板に対して間隔をおい
て張られたフィラメントと、前記陽極基板と前記フィラ
メントの中間に配置され前記グリッド配線に接続する電
流制御用のグリッドと、前記陽極基板に封着される透明
なカバーガラスとを有する蛍光表示管において、前記陽
極基板上に前記陽極パッドと電気的に接続する一群の電
着用陽極パッドを設けて絶縁層で覆い、前記電着用陽極
パッドに達する貫通孔を設け、前記電着用陽極パッドに
接続し、かつ前記絶縁層の表面から突出する導電体の電
着用突起部を設けたことを特徴とする蛍光表示管。An anode pad, an anode wiring connected to the anode pad, a grid wiring, an insulating layer covering the anode wiring and the grid wiring, and an anode pad provided on the insulating layer and connected to the anode pad are formed on a glass substrate. an anode substrate on which a phosphor display section is formed, a filament stretched at intervals with respect to the anode substrate, and a current control device arranged between the anode substrate and the filament and connected to the grid wiring In a fluorescent display tube having a grid and a transparent cover glass sealed to the anode substrate, a group of anode pads for electrodes electrically connected to the anode pads are provided on the anode substrate and covered with an insulating layer. A fluorescent display tube comprising: a through hole reaching the anode pad for electrodeposition; and a protrusion for electrodeposition of a conductor connected to the anode pad for electrodeposition and protruding from the surface of the insulating layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7532087A JPS63241847A (en) | 1987-03-27 | 1987-03-27 | Fluorescent character display tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7532087A JPS63241847A (en) | 1987-03-27 | 1987-03-27 | Fluorescent character display tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63241847A true JPS63241847A (en) | 1988-10-07 |
Family
ID=13572851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7532087A Pending JPS63241847A (en) | 1987-03-27 | 1987-03-27 | Fluorescent character display tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63241847A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002025482A (en) * | 2000-07-13 | 2002-01-25 | Ise Electronics Corp | Fluorescent display tube |
-
1987
- 1987-03-27 JP JP7532087A patent/JPS63241847A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002025482A (en) * | 2000-07-13 | 2002-01-25 | Ise Electronics Corp | Fluorescent display tube |
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