JPS6235220B2 - - Google Patents
Info
- Publication number
- JPS6235220B2 JPS6235220B2 JP55023172A JP2317280A JPS6235220B2 JP S6235220 B2 JPS6235220 B2 JP S6235220B2 JP 55023172 A JP55023172 A JP 55023172A JP 2317280 A JP2317280 A JP 2317280A JP S6235220 B2 JPS6235220 B2 JP S6235220B2
- Authority
- JP
- Japan
- Prior art keywords
- discharge
- voltage
- anode
- cathode
- hollow cathode
- 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 description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 150000002500 ions Chemical class 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J17/00—Gas-filled discharge tubes with solid cathode
- H01J17/38—Cold-cathode tubes
- H01J17/48—Cold-cathode tubes with more than one cathode or anode, e.g. sequence-discharge tube, counting tube, dekatron
- H01J17/49—Display panels, e.g. with crossed electrodes, e.g. making use of direct current
Landscapes
- Gas-Filled Discharge Tubes (AREA)
Description
【発明の詳細な説明】 本発明はガス放電表示装置に関する。[Detailed description of the invention] The present invention relates to a gas discharge display device.
本発明は、陰極形状を、放電発光表示を観察す
る面を開口とし、かかる面との反対の面には、相
対向する陽極と対応する個所に小孔を設けたホロ
ー陰極とし、陽極と陰極の小孔との間の走査用放
電および陰極小孔を経由しての、陽極と前記中空
陰極内壁との間の表示用放電の二種類のモードの
放電を利用するという新しい原理に基づくもので
あつて、かかる二種類の放電を利用することによ
つて、放電表示パネルの端子電極数の大幅な削
減、従つて駆動回路数の大幅な削減を図ることを
可能にしたものである。 In the present invention, the cathode is formed into a hollow cathode in which the surface on which the discharge luminescent display is observed is an opening, and the opposite surface has a small hole at a location corresponding to the opposing anode, and the anode and cathode It is based on a new principle that utilizes two types of discharge: a scanning discharge between the small hole in the cathode and a display discharge between the anode and the inner wall of the hollow cathode via the cathode small hole. By utilizing these two types of discharge, it is possible to significantly reduce the number of terminal electrodes in the discharge display panel, and therefore the number of drive circuits.
本発明によるガス放電表示装置の動作原理につ
いて、図面を参照しながら詳細に説明する。 The operating principle of the gas discharge display device according to the present invention will be explained in detail with reference to the drawings.
第１図は本発明によるガス放電表示装置の動作
原理を説明する為のものであり、陽極１と、陽極
１に対向した個所に放電の通路となる小孔３を設
け、さらに小孔３の反対側には放電発光観察の為
の開口４を設けた円筒状中空陰極２とが外周器７
に含まれ、外周器７には放電可能なガスが封入さ
れている。陽極１と中空陰極２との間には直列抵
抗５を介して直流電圧源６を印加する。かかる装
置において、直流電圧源６の電圧を零から上昇し
ていつた時の放電生成は次の如きとなる。即ち、
直流電圧源６の電圧を上昇していくと、最初陽極
１と中空陰極２に設けた小孔３の間の空間８で放
電が開始される。さらに直流電圧源６の電圧を上
昇していくと放電は小孔３を通つて中空陰極２の
内側の空間９へ一気に入り、中空陰極２の開口４
から観察した時、負グローが空間９の中に充満
し、フアラデイ（Farady）暗部の認められない
放電が生起している。このように中空陰極２の中
心にFarady暗部が認められずに、負グローが充
満した放電は、よく知られているホローカソード
放電特有の現象であり、この時陰極降下電圧は通
常の正規グローの値よりも数十Ｖから100V程度
低くなることが知られている。 FIG. 1 is for explaining the operating principle of the gas discharge display device according to the present invention, in which an anode 1 and a small hole 3 serving as a discharge path are provided at a location opposite the anode 1, and the small hole 3 is On the opposite side, there is a cylindrical hollow cathode 2 with an opening 4 for observing discharge light emission, and an outer device 7.
The outer shell 7 is filled with a gas that can be discharged. A DC voltage source 6 is applied between the anode 1 and the hollow cathode 2 via a series resistor 5. In such a device, the discharge generated when the voltage of the DC voltage source 6 is increased from zero is as follows. That is,
When the voltage of the DC voltage source 6 is increased, discharge begins in the space 8 between the anode 1 and the small hole 3 provided in the hollow cathode 2. When the voltage of the DC voltage source 6 is further increased, the discharge passes through the small hole 3 and enters the space 9 inside the hollow cathode 2, and the discharge flows through the opening 4 of the hollow cathode 2.
When observed from above, a negative glow fills the space 9, and a discharge occurs in which no Farady dark area is recognized. The discharge in which the center of the hollow cathode 2 is filled with negative glow and no Farady dark area is observed is a well-known phenomenon peculiar to hollow cathode discharge. It is known that the voltage is several tens of volts to 100 volts lower than the actual value.
第２図は第１図の装置における電極間電圧一放
電電流特性であり、第１図の直流電圧源６の電圧
がVS1に達すると、放電は陽極１と中空陰極（ホ
ローカソード）２の小孔３との間で開始される。
小孔３の部分で放電が開始するのは、小孔３のエ
ツジ効果によつて電界が集中するためである。直
流電圧源６の電圧をVS1より上げていくと、放電
は空間８の領域で成長を続け、直流電圧源６の電
圧値がVS3に達すると、放電は小孔３を通つて一
気に中空陰極２の内部の空間９へ成長し、中空陰
極２の内径ｄと封入ガス圧ｐとの積、ｐ・ｄ値を
適当に選ぶことによつて、放電空間９での負グロ
ーが合体し、Farady暗部の認められない所謂ホ
ローカソード放電が実現できる。 Figure 2 shows the interelectrode voltage-discharge current characteristics of the device shown in Figure 1. When the voltage of the DC voltage source 6 in Figure 1 reaches VS1, the discharge begins at the anode 1 and the hollow cathode 2. It starts between hole 3.
The reason why discharge starts at the small hole 3 is that the electric field is concentrated due to the edge effect of the small hole 3. When the voltage of the DC voltage source 6 is increased from VS1, the discharge continues to grow in the area of the space 8, and when the voltage value of the DC voltage source 6 reaches VS3, the discharge passes through the small hole 3 and reaches the hollow cathode 2 at once. By appropriately selecting the product of the inner diameter d of the hollow cathode 2 and the filled gas pressure p, the p・d value, the negative glow in the discharge space 9 is combined, and the Farady dark area A so-called hollow cathode discharge, which is not allowed, can be realized.
この時、放電は特性曲線１０と負荷線１１との
交点ａで安定する。よく知られているように陰極
降下電圧は通常の正規グローの値より数十Ｖから
100V程度低い値をとり、第２図におけるVS4値
はホローカソード放電の効果によつて低下した維
持電圧を示すものである。直流電圧源６の電圧が
VS3、つまり電極間電圧がVS2にならないと放電
が空間９の内部へ入り込まない理由は、陰極暗部
の厚みをｄo、小孔３の内径をＤとすると、Ｄ＜
ｄoとなるため一種の阻止グロー放電となり、負
グローが小孔３を通つて中空陰極の内部９へ入つ
ていくのにVS2なる電圧が要求される為である。 At this time, the discharge becomes stable at the intersection a of the characteristic curve 10 and the load line 11. As is well known, the cathode drop voltage is several tens of volts higher than the normal regular glow value.
The value of VS4 in FIG. 2 is about 100 V lower, and the VS4 value in FIG. 2 shows the sustaining voltage lowered due to the effect of hollow cathode discharge. The voltage of DC voltage source 6 is
The reason why the discharge does not enter the space 9 unless VS3, that is, the voltage between the electrodes reaches VS2, is that if the thickness of the cathode dark part is d o and the inner diameter of the small hole 3 is D, then D<
This is because a voltage of VS2 is required for the negative glow to pass through the small hole 3 and enter the interior 9 of the hollow cathode.
以上説明してきたように、直流電圧源６の電圧
VsがVS1≦Vs＜VS3であれば、放電は空間８の
領域に止まり、VS3≦Vsとなると放電は小孔３
を通り中空陰極内部９へ入り込む。この時、中空
陰極２の内壁は陰極として作用する為、前述の
ｐ・ｄ値を適当に選ぶことによつて、所謂ホロー
カソード放電を実現することができ、この時の電
極間維持電圧はVS1より低いVS4をとる。 As explained above, the voltage of the DC voltage source 6
If Vs is VS1≦Vs<VS3, the discharge will stop in the area of space 8, and if VS3≦Vs, the discharge will be in the small hole 3.
and enters the inside of the hollow cathode 9. At this time, the inner wall of the hollow cathode 2 acts as a cathode, so by appropriately selecting the p and d values mentioned above, a so-called hollow cathode discharge can be realized, and the voltage maintained between the electrodes at this time is VS1. Take the lower VS4.
本発明は、空間８での放電を走査用放電として
利用し、空間９での放電を表示用主放電として利
用することによつて、ガス放電表示パネルの端子
電極数の低減を図つたものである。 The present invention aims to reduce the number of terminal electrodes in a gas discharge display panel by using the discharge in space 8 as a scanning discharge and the discharge in space 9 as a main discharge for display. be.
第３図は本発明のガス放電表示装置におけるガ
ス放電表示パネルの分解斜視図であり、第４図お
よび第５図は、そのようなパネルを駆動する為の
構成法および印加電圧波形である。 FIG. 3 is an exploded perspective view of a gas discharge display panel in the gas discharge display device of the present invention, and FIGS. 4 and 5 show a construction method and applied voltage waveforms for driving such a panel.
第３図によれば、本発明による放電表示パネル
は、前面外囲器を構成する透明なガラス板１２
と、後面外囲器を構成するガラス板１３と、前面
ガラス板１２側に所望のドツトの大きさに開口１
７を設け、後面ガラス板１３上に形成したニツケ
ル材から成る陽極１５に対向した個所に小孔１６
を設け、単一セルを円筒状中空陰極としたニツケ
ル材から成る陰極１４と、かかる陰極１４とある
距離を保つて配置された陽極１５とから構成され
る。 According to FIG. 3, the discharge display panel according to the present invention has a transparent glass plate 12 constituting a front envelope.
Then, an opening 1 of a desired dot size is formed on the glass plate 13 constituting the rear envelope and the front glass plate 12.
7, and a small hole 16 at a location facing the anode 15 made of nickel material formed on the rear glass plate 13.
The cathode 14 is made of a nickel material and has a single cell as a cylindrical hollow cathode, and an anode 15 is placed at a certain distance from the cathode 14.
第４図は、かかるガス放電表示パネルを駆動す
る為の一実施例であり、図中〇印で示した例えば
１８，１９等は本発明による単一放電セルを示
す。電極２０はリセツト用陽極であり、C1〜C4
は走査用陽極であり、D1〜D5はデータ用陰極で
あり、抵抗２１〜２５は各々の陰極側に設けた直
列抵抗である。第４図では省略したが、リセツト
用陽極２０の近傍にはキープアライブ用電極を配
置しておき、キープアライブ部は常に点灯状態と
しておく。走査用電極はC1〜C4の４相とした
が、３相あるいは４相以上の多相とできることは
周知の事実である。リセツト用陽極２０および走
査用陽極C1〜C4には第５図に示した様に順次ＶA
なる電圧を印加する。走査の開始時には、まずリ
セツト用陽極２０にＶAなる電圧を印加し、この
時データ用陰極D1〜D5の印加電圧は第５図に示
すようにOVとする。電圧ＶAはリセツト用放電セ
ルの陽極と陰極に設けた小孔との間の空間に走査
用放電が生成する様に設定しておく。次に走査用
陽極C1にＶAなる電圧を印加すると、リセツト用
放電セルに於いて生成されたイオン等の影響によ
りリセツト用電極の隣りの放電セルに走査用放電
が生成され、以下C2，C3と順次ＶAを印加するこ
とにより、走査用放電が順次右方向へ走査される
ことになる。この時、電圧ＶAは表示用主放電を
生成する電圧より低い値に設定しておく。この様
に順次走査される走査用放電にタイミングを合わ
せて、第５図D1〜D3に示した様にＶA＋ＶKが主
放電を生成するように設定した−ＶKを印加する
ことによつて所望の発光表示を得ることができ
る。 FIG. 4 shows an embodiment for driving such a gas discharge display panel, and the symbols 18, 19, etc. marked with circles in the figure indicate single discharge cells according to the present invention. The electrode 20 is a reset anode, and has C 1 to C 4
is a scanning anode, D 1 to D 5 are data cathodes, and resistors 21 to 25 are series resistors provided on each cathode side. Although omitted in FIG. 4, a keep-alive electrode is arranged near the reset anode 20, and the keep-alive part is always kept lit. Although the scanning electrode has four phases of C 1 to C 4 , it is a well-known fact that it can have three phases or multiple phases of four or more phases. The reset anode 20 and the scanning anodes C 1 to C 4 are sequentially connected to V A as shown in FIG.
Apply a voltage of At the start of scanning, a voltage V A is first applied to the reset anode 20, and at this time the voltage applied to the data cathodes D 1 to D 5 is set to OV as shown in FIG. The voltage V A is set so that a scanning discharge is generated in the space between the anode and the small hole provided in the cathode of the reset discharge cell. Next, when a voltage V A is applied to the scanning anode C 1 , a scanning discharge is generated in the discharge cell adjacent to the reset electrode due to the influence of ions generated in the reset discharge cell, and the following C 2 , C 3 and V A are sequentially applied, the scanning discharge is sequentially scanned to the right. At this time, the voltage V A is set to a value lower than the voltage that generates the main discharge for display. Applying -V K , which is set so that V A +V K generates the main discharge, as shown in FIG. 5 D 1 to D 3 , in time with the scanning discharges that are scanned sequentially in this way. A desired luminescent display can be obtained by this.
走査用放電が生成している放電セルでは走査用
放電セルに於いて生成されるイオン、準安定原子
等が小孔を通つて主放電領域へ拡散する為、他の
放電セルより表示用主放電が生成し易すくなつて
いる為、誤表示を起こすことなく、走査用放電が
生成している放電セルのみが選択される。また−
ＶKを印加した時非選択セルにもＶA＋ＶKなる電
圧が印加されるが、前述した如く走査用放電が生
起している放電セルの方がはるかに早く主放電を
形成する為、陽極、陰極間電圧は瞬時にホローカ
ソード放電の効果により、走査用放電の維持電圧
より低い値となる為誤走査を起こすこともない。 In a discharge cell where a scanning discharge is generated, ions, metastable atoms, etc. generated in the scanning discharge cell diffuse into the main discharge area through small holes, so the display main discharge is more likely to be generated than other discharge cells. is becoming easier to generate, so only discharge cells in which scanning discharges are generated are selected without causing erroneous display. Also-
When V K is applied, a voltage of V A +V K is also applied to non-selected cells, but as mentioned above, the main discharge is formed much earlier in the discharge cells where the scanning discharge is occurring, so the anode Since the voltage between the cathodes instantaneously becomes lower than the sustaining voltage of the scanning discharge due to the effect of the hollow cathode discharge, no erroneous scanning occurs.
従つて本発明による放電表示装置のかかる実施
例においては、走査用陽極４本リセツト用陽極１
本、キープアライブ用電極２本およびデータ数に
対応したデータ用陰極がパネルを正常に動作させ
る為の総ての電極であり、従来要求された電極数
に対して大幅な削減を可能ならしめる。 Therefore, in this embodiment of the discharge display device according to the present invention, there are four scanning anodes and one reset anode.
A book, two keep-alive electrodes, and a data cathode corresponding to the number of data are all the electrodes needed to operate the panel normally, making it possible to significantly reduce the number of electrodes required in the past.
以上、実施例を用いて説明した通り、本発明に
よるガス放電セルを用いて構成したガス放電表示
装置によれば、簡単な電極構造で、ガス放電表示
パネルの端子電極数を大幅に削減することがで
き、従つて駆動回路数を大幅に削減することが可
能である。 As described above using the examples, according to the gas discharge display device constructed using the gas discharge cell according to the present invention, the number of terminal electrodes of the gas discharge display panel can be significantly reduced with a simple electrode structure. Therefore, it is possible to significantly reduce the number of drive circuits.
実施例では円筒状中空陰極としたが、ホロー陰
極を形成する形状であれば同一の効果が得られる
ことは明らかである。また、ホローカソード放電
を利用している為、よく知られている様に発光効
率が高い等の特徴を有していることは明らかであ
る。 In the embodiment, a cylindrical hollow cathode is used, but it is clear that the same effect can be obtained with any shape that forms a hollow cathode. Furthermore, since it utilizes hollow cathode discharge, it is clear that it has features such as high luminous efficiency, as is well known.
本発明による放電表示装置の動作原理は、表示
用主放電の形成のしかたに於いて、従来のセルフ
スキヤン型と呼ばれる放電表示装置とは異なり、
全く新しい独自のものである。 The operating principle of the discharge display device according to the present invention differs from the conventional self-scan type discharge display device in the method of forming the main discharge for display.
It's completely new and unique.
第１図は本発明のガス放電表示装置におけるガ
ス放電セルの動作を説明する概略図。第２図は第
１図のガス放電セルにおける電極間電圧−放電電
流特性図。第３図は、本発明によるガス放電表示
セルを用いて構成したガス放電表示パネルの分解
斜視図。第４図および第５図は第３図のパネルを
駆動する為の構成図および印加電圧波形図。
１２，１３……ガラス板、１４……陰極、１５
……陽極、１６……小孔、１７……開口。
FIG. 1 is a schematic diagram illustrating the operation of a gas discharge cell in a gas discharge display device of the present invention. FIG. 2 is an interelectrode voltage-discharge current characteristic diagram in the gas discharge cell of FIG. 1. FIG. 3 is an exploded perspective view of a gas discharge display panel constructed using the gas discharge display cell according to the present invention. 4 and 5 are block diagrams and applied voltage waveform diagrams for driving the panel of FIG. 3. 12, 13... Glass plate, 14... Cathode, 15
...anode, 16...small hole, 17...opening.
Claims (1)
封入したガス放電表示装置において、前記陰極の
形状を前記陽極と相対向した面と反対の面を開口
としたホロー陰極とし、かつ前記陽極と対向した
前記ホロー陰極底面に小孔を穿つて該小孔と前記
陽極との間の限定された第１の放電を生じさせる
手段と、前記第１の放電を生じさせる電圧より高
い電圧を前記陽極とホロー陰極との間に印加して
前記第１の放電と小孔を利用することにより前記
ホロー陰極の開口部にホローカソード放電を生じ
させる手段とを有することを特徴とするガス放電
表示装置。1. In a gas discharge display device in which an anode and a cathode are opposed to each other and a dischargeable gas is sealed, the cathode is shaped as a hollow cathode with an opening on a surface opposite to the surface facing the anode, and means for creating a limited first discharge between the small hole and the anode by forming a small hole in the opposed bottom surface of the hollow cathode; and applying a voltage higher than the voltage that causes the first discharge to the anode. and a means for generating a hollow cathode discharge in the opening of the hollow cathode by applying a voltage between the first discharge and the hollow cathode and utilizing the first discharge and the small hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2317280A JPS56120051A (en) | 1980-02-26 | 1980-02-26 | Gas discharge indicator panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2317280A JPS56120051A (en) | 1980-02-26 | 1980-02-26 | Gas discharge indicator panel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56120051A JPS56120051A (en) | 1981-09-21 |
| JPS6235220B2 true JPS6235220B2 (en) | 1987-07-31 |
Family
ID=12103200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2317280A Granted JPS56120051A (en) | 1980-02-26 | 1980-02-26 | Gas discharge indicator panel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56120051A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5875239U (en) * | 1981-11-14 | 1983-05-21 | 株式会社日本コインコ | Storage casing for card suction/ejection device |
| US6160348A (en) * | 1998-05-18 | 2000-12-12 | Hyundai Electronics America, Inc. | DC plasma display panel and methods for making same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5086879A (en) * | 1973-12-07 | 1975-07-12 | ||
| JPS52119030A (en) * | 1976-03-31 | 1977-10-06 | Okaya Electric Industry Co | Circuit for protecting discharge indicator |
| JPS53142865A (en) * | 1977-05-19 | 1978-12-12 | Matsushita Electronics Corp | Display unit of gas discharge type |
-
1980
- 1980-02-26 JP JP2317280A patent/JPS56120051A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5086879A (en) * | 1973-12-07 | 1975-07-12 | ||
| JPS52119030A (en) * | 1976-03-31 | 1977-10-06 | Okaya Electric Industry Co | Circuit for protecting discharge indicator |
| JPS53142865A (en) * | 1977-05-19 | 1978-12-12 | Matsushita Electronics Corp | Display unit of gas discharge type |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56120051A (en) | 1981-09-21 |
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