JP3427676B2 - Surface discharge type plasma display panel and method for forming discharge sustaining electrode thereof - Google Patents
Surface discharge type plasma display panel and method for forming discharge sustaining electrode thereofInfo
- Publication number
- JP3427676B2 JP3427676B2 JP14195397A JP14195397A JP3427676B2 JP 3427676 B2 JP3427676 B2 JP 3427676B2 JP 14195397 A JP14195397 A JP 14195397A JP 14195397 A JP14195397 A JP 14195397A JP 3427676 B2 JP3427676 B2 JP 3427676B2
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- Prior art keywords
- electrode
- glass substrate
- discharge
- display panel
- transparent electrode
- Prior art date
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Description
【０００１】[0001]
【発明の属する技術分野】本発明は、メモリ機能を有す
る表示素子であるセルの集合体によって構成された表示
パネル、特に面放電型プラズマ・ディスプレイ・パネル
の放電セル中の放電維持電極構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display panel composed of an assembly of cells which are display elements having a memory function, and more particularly to a structure of a sustaining electrode in a discharge cell of a surface discharge type plasma display panel.
【０００２】[0002]
【従来の技術】従来、面放電型プラズマ・ディスプレイ
・パネルの放電セル構造は特開平６―１８６９２７号公
報や特開平８―２５００２９号公報に記載されたものが
知られている。図１８は従来の放電セルの主要構造を示
している。第１ガラス基板１１には、Ｘ放電維持電極１
２とＹ放電維持電極１３が平行に形成されており、さら
に、放電維持電極１２及び１３上に誘電体１７と保護膜
１８が形成されている。もう一方の第２ガラス基板１４
上には、放電維持電極と垂直に配置されたデータ電極１
５が形成されており、さらに、データ電極１５の上には
蛍光体１６が塗布されている。第２ガラス基板１４上に
は、混色の防止と隣接セル内の放電に及ぼす影響を除去
するために隔壁１９も形成されている。2. Description of the Related Art Conventionally, as a discharge cell structure of a surface discharge type plasma display panel, those described in JP-A-6-186927 and JP-A-8-250029 are known. FIG. 18 shows the main structure of a conventional discharge cell. The X glass discharge sustaining electrode 1 is formed on the first glass substrate 11.
2 and the Y discharge sustaining electrode 13 are formed in parallel, and a dielectric 17 and a protective film 18 are further formed on the discharge sustaining electrodes 12 and 13. The other second glass substrate 14
The data electrode 1 is disposed vertically on the sustain electrode.
5 is formed, and a phosphor 16 is applied on the data electrode 15. A partition 19 is also formed on the second glass substrate 14 in order to prevent color mixture and remove the influence on discharge in the adjacent cell.
【０００３】以下に、面放電型プラズマ・ディスプレイ
・パネルの表示のための基本的な動作を説明する。放電
維持電極１２、１３間に数百Ｖの交流電圧を印加するこ
とにより変動電界を生じさせる。放電空間２０（図１３
参照）に到達した前記電界と誘電体１７表面に蓄積され
る電荷が作る電界によって、放電空間２０中の荷電粒子
や中性粒子が運動・衝突を繰り返し、ガス放電が起こ
る。前記ガス放電から発生する特定波長の紫外線がＲＧ
Ｂ蛍光体を励起し、発光する。The basic operation of the surface discharge plasma display panel for displaying will be described below. A fluctuating electric field is generated by applying an AC voltage of several hundred V between the sustain electrodes 12 and 13. Discharge space 20 (Fig. 13
(Refer to FIG. 4) and the electric field generated by the electric charges accumulated on the surface of the dielectric 17 cause the charged particles and neutral particles in the discharge space 20 to repeatedly move and collide, thereby causing a gas discharge. Ultraviolet rays of a specific wavelength generated from the gas discharge are RG
The B phosphor is excited to emit light.
【０００４】従来の放電維持電極は、図７に示すように
放電空間の確保を目的とした透明電極２１と低抵抗化を
目的としたメタル電極２３から構成される。前記透明電
極の特徴は光透過率を高くするために非常に薄いことで
あり、マクロ的に見ればその先端が非常に尖鋭であるこ
とである。前記メタル電極は形成のし易さから、透明電
極の長手方向に対して概ね中央部に形成される場合が多
い。As shown in FIG. 7, a conventional discharge sustaining electrode is composed of a transparent electrode 21 for securing a discharge space and a metal electrode 23 for reducing resistance. The characteristic feature of the transparent electrode is that it is very thin in order to increase the light transmittance, and that its tip is very sharp when viewed macroscopically. Due to the ease of forming the metal electrode, it is often the case that the metal electrode is formed substantially at the central portion in the longitudinal direction of the transparent electrode.
【０００５】[0005]
【発明が解決しようとする課題】この面放電型プラズマ
・ディスプレイ・パネルの開発においては、誘電体中で
起こる絶縁破壊を防止することが必須条件である。放電
セルの誘電体中で絶縁破壊が起こると、点灯／非点灯の
制御ができなくなり、表示パネルとしての機能を果たさ
なくなってしまうからである。なお、絶縁破壊とは誘電
体（絶縁体）に印加される電界を次第に高くしていく
と、ある臨界値を超えると電流の飛躍的な急増を生じ、
電気的絶縁性が失われる現象を指す。In developing the surface discharge type plasma display panel, it is an essential condition to prevent the dielectric breakdown occurring in the dielectric. This is because if dielectric breakdown occurs in the dielectric of the discharge cell, lighting / non-lighting cannot be controlled, and the function as a display panel cannot be achieved. What is dielectric breakdown? When the electric field applied to a dielectric (insulator) is gradually increased, a dramatic increase in current occurs when a certain critical value is exceeded,
A phenomenon in which electrical insulation is lost.
【０００６】誘電体を薄くすれば、放電空間に到達する
電界は強くなるので輝度は上がる。しかしながら、放電
空間の抵抗値が小さくなる放電時には、放電維持電極と
データ電極間の電圧が誘電体に直接加わるため、誘電体
を薄くすると誘電体中で強電界が生じ、絶縁破壊が起こ
るおそれがある。一般に曲率半径が小さい、いわゆる針
状電極の先端付近では著しい電界集中が起こることや、
電極の縁端部で生じる不平等電界は中央部よりも強い電
界ができることを考慮すると、透明電極の先端（縁端）
付近で絶縁破壊が生じる可能性は高い。If the dielectric is made thin, the electric field reaching the discharge space becomes strong, so that the brightness is increased. However, at the time of discharge in which the resistance value of the discharge space becomes small, the voltage between the discharge sustaining electrode and the data electrode is directly applied to the dielectric. is there. Generally, a large electric field concentration occurs near the tip of a so-called needle-shaped electrode, which has a small radius of curvature,
Considering that the unequal electric field generated at the edge of the electrode can be stronger than that at the center, the tip (edge) of the transparent electrode
Dielectric breakdown is likely to occur in the vicinity.
【０００７】この面放電型プラズマ・ディスプレイ・パ
ネルの商品化に向けて、絶縁破壊の防止策の開発が要求
されている。本発明は、透明電極先端（縁端）部での電
界集中を緩和するような電極構造を作成することによっ
て、前述の課題を克服することを目的とする。In order to commercialize this surface discharge type plasma display panel, it is required to develop a measure for preventing dielectric breakdown. It is an object of the present invention to overcome the aforementioned problems by creating an electrode structure that alleviates the electric field concentration at the transparent electrode tip (edge).
【０００８】[0008]
【課題を解決するための手段】上記目的を達成するた
め、本発明は、同一断面形状の単位放電セル当り２本の
放電維持電極が平行に形成され、さらに、前記放電維持
電極上に誘電体と保護膜が形成された第１のガラス基板
と、隔壁とデータ電極が形成され、前記データ電極の上
に蛍光体が塗布された構造の第２のガラス基板と、前記
第１のガラス基板と前記第２のガラス基板を張り合せる
ことによってできる放電空間とを備えた面放電型プラズ
マ・ディスプレイ・パネルの放電セル構造において、前
記放電維持電極は透明電極とメタル電極から構成され、
透明電極の両端部の先端（縁端）部を曲率半径の小さい
部分がない形状にしたものである。In order to achieve the above object, the present invention provides two discharge sustaining electrodes in parallel per unit discharge cell having the same cross-sectional shape, and further, a dielectric material on the discharge sustaining electrodes. A first glass substrate having a protective film formed thereon, a second glass substrate having a structure in which barrier ribs and data electrodes are formed, and a phosphor is applied on the data electrodes; and the first glass substrate. In a discharge cell structure of a surface discharge type plasma display panel having a discharge space formed by laminating the second glass substrate, the discharge sustaining electrode is composed of a transparent electrode and a metal electrode,
The tip (edge) of both ends of the transparent electrode is shaped so as not to have a portion with a small radius of curvature.
【０００９】[0009]
【発明の実施の形態】以下、本発明の実施の形態につい
て、図１から図１７を用いて説明する。なお、本発明の
実施の形態では各放電維持電極及びデータ電極に図１３
に示すパターンの電圧を印加したときの数値解析結果を
検討材料として用いた。この電圧パターンは面放電型プ
ラズマ・ディスプレイ・パネルの駆動シーケンスの中で
Ｘ、Ｙ放電維持電極間の電位差及びＸ放電維持電極とデ
ータ電極間の電位差が最大となる壁電荷形成期間の動作
条件に対応するものである。なお、壁電荷とは、点灯／
非点灯の選択性を実現するために放電維持電極を誘電体
で覆うことにより、誘電体表面に蓄積された電荷を指
す。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to FIGS. 1 to 17. In addition, in the embodiment of the present invention, each of the sustaining electrodes and the data electrodes has a structure shown in FIG.
Numerical analysis results when a voltage of the pattern shown in Fig. 3 was applied were used as the study material. This voltage pattern corresponds to the operating condition of the wall charge forming period in which the potential difference between the X and Y discharge sustaining electrodes and the potential difference between the X discharge sustaining electrode and the data electrode are maximized in the driving sequence of the surface discharge type plasma display panel. Corresponding. Note that the wall charge is lighting /
By covering the discharge sustaining electrodes with a dielectric in order to realize non-lighting selectivity, the charge accumulated on the surface of the dielectric is indicated.
【００１０】（実施の形態１）図１は第１の発明の一実
施の形態の構成を示す放電維持電極構造を示し、図１に
おいて２１は透明電極、２２は透明電極の先端部を覆う
ように形成されたメタル電極、２３は低抵抗化のために
備えられたメタル電極である。(Embodiment 1) FIG. 1 shows a structure of a discharge sustaining electrode showing a structure of an embodiment of the first invention. In FIG. 1, reference numeral 21 is a transparent electrode, and 22 is a transparent electrode so as to cover a tip portion thereof. The metal electrode 23 formed in the above is a metal electrode provided for lowering the resistance.
【００１１】以上のように構成された放電維持電極構造
について、以下、説明を行う。図１４に、従来の放電維
持電極を用いた場合のＸ放電維持電極周辺の等電圧線分
布を示す。等電圧線の分布が密な領域は電界が強く、逆
に疎な領域は電界が弱いことを示している。図１４よ
り、メタル電極と保護膜表面の間及び透明電極の先端部
で強電界が生じていることがわかる。図１５は透明電極
の先端付近の等電圧線分布を拡大して表示したものであ
る。図１５よりメタル電極と保護膜表面の間では、ほぼ
一様な電界が生じており、一方、透明電極の先端付近で
は電界が集中し、局所的に強い電界が生じていることが
わかる。さらに、解析結果を分析した結果、最大電界は
透明電極の先端付近で生じていることがわかった。The structure of the discharge sustaining electrode having the above structure will be described below. FIG. 14 shows an equipotential line distribution around the X discharge sustaining electrode when the conventional discharge sustaining electrode is used. It is shown that the electric field is strong in the region where the distribution of the equipotential lines is dense, and conversely the electric field is weak in the region where it is sparse. It can be seen from FIG. 14 that a strong electric field is generated between the metal electrode and the surface of the protective film and at the tip of the transparent electrode. FIG. 15 is an enlarged display of the equipotential line distribution near the tip of the transparent electrode. From FIG. 15, it can be seen that an almost uniform electric field is generated between the metal electrode and the surface of the protective film, while the electric field is concentrated near the tip of the transparent electrode and a strong electric field is locally generated. Furthermore, as a result of analyzing the analysis results, it was found that the maximum electric field occurs near the tip of the transparent electrode.
【００１２】最大電界が生じている透明電極の先端付近
で電界を緩和することができれば、放電セルの耐電圧特
性を改善することができる。そこで、透明電極の先端部
を覆うように曲率半径の小さい部分がない形状のメタル
電極を形成した。図８はその概念図である。図１６は、
本発明の放電維持電極構造を用いた場合のＸ放電維持電
極周辺の等電圧線分布を示している。図１７は透明電極
の先端付近の等電圧線分布を拡大して表示したものであ
る。図１５と図１７を比較することにより、本発明の放
電維持電極構造を用いると、透明電極の先端部付近にお
いて電界集中が緩和されたことがわかる。なお、今回の
例では、本発明の電極構造を用いると、従来と比較して
誘電体中の最大電界強度は約１／５に緩和されることが
わかった。If the electric field can be relaxed near the tip of the transparent electrode where the maximum electric field is generated, the withstand voltage characteristic of the discharge cell can be improved. Therefore, a metal electrode having a shape with no small radius of curvature was formed so as to cover the tip of the transparent electrode. FIG. 8 is a conceptual diagram thereof. 16
7 shows an equipotential line distribution around the X discharge sustaining electrode when the discharge sustaining electrode structure of the present invention is used. FIG. 17 is an enlarged display of the equipotential line distribution near the tip of the transparent electrode. By comparing FIG. 15 and FIG. 17, it can be seen that the electric field concentration is relaxed near the tip of the transparent electrode by using the discharge sustaining electrode structure of the present invention. In the present example, it was found that the use of the electrode structure of the present invention relaxes the maximum electric field strength in the dielectric to about 1/5 as compared with the conventional one.
【００１３】なお、以上の説明では、メタル電極は図１
に示すように透明電極の長手方向に対して中央部に形成
された従来のメタル電極に加えて、透明電極先端部での
電界を緩和するために、その先端部を覆うように曲率半
径の小さい部分がない形状のメタル電極から構成されて
いた。しかし、図２に示すように低抵抗化のためのメタ
ル電極を透明電極の先端のみに備えた場合についても、
透明電極の先端部での電界が緩和されるので、図１に示
す電極構造の場合と同様な効果が得られる。透明電極の
縁端付近に形成されたメタル電極のみで十分な抵抗値が
得られる場合、この構成で良い。In the above description, the metal electrode is shown in FIG.
In addition to the conventional metal electrode formed in the central portion with respect to the longitudinal direction of the transparent electrode as shown in, the radius of curvature is small so as to cover the transparent electrode tip in order to alleviate the electric field. It was composed of a metal electrode having a shape without a portion. However, as shown in FIG. 2, even in the case where a metal electrode for lowering resistance is provided only on the tip of the transparent electrode,
Since the electric field at the tip of the transparent electrode is relaxed, the same effect as in the case of the electrode structure shown in FIG. 1 can be obtained. This configuration may be used when a sufficient resistance value can be obtained only by the metal electrode formed near the edge of the transparent electrode.
【００１４】（実施の形態２）図３は第２の発明の一実
施の形態の構成を示す放電維持電極構造を示す。これは
透明電極の先端部の形状を曲率半径の小さい部分がない
ように透明電極を作成したものである。この場合でも、
透明電極の先端部での電界が緩和されるので、実施の形
態１の場合と同様な効果が得られる。また、本発明では
透明電極の先端部におけるメタル電極の形成が不必要な
ので、実施の形態１の場合に比べてプロセスが簡単であ
るという効果も併せ持つ。(Second Embodiment) FIG. 3 shows a discharge sustaining electrode structure showing a structure of an embodiment of the second invention. This is a transparent electrode formed so that the shape of the tip of the transparent electrode does not have a portion with a small radius of curvature. Even in this case,
Since the electric field at the tip of the transparent electrode is relaxed, the same effect as in the first embodiment can be obtained. Further, in the present invention, since it is unnecessary to form the metal electrode at the tip of the transparent electrode, it has an effect that the process is simple as compared with the case of the first embodiment.
【００１５】なお、以上の説明では、図３に示すように
放電維持電極は断面積が小さい透明電極のみから構成さ
れていた。そこで、図４に示すように、放電維持電極の
低抵抗化のために透明電極上にメタル電極を付加した。
この場合でも、透明電極の先端部において電界集中が緩
和されるので、実施の形態１の場合と同様な効果が得ら
れる。In the above description, as shown in FIG. 3, the discharge sustaining electrode is composed only of the transparent electrode having a small cross-sectional area. Therefore, as shown in FIG. 4, a metal electrode is added on the transparent electrode in order to reduce the resistance of the discharge sustaining electrode.
Even in this case, the electric field concentration is alleviated at the tip of the transparent electrode, so that the same effect as in the first embodiment can be obtained.
【００１６】（実施の形態３）図５は第３の発明の一実
施の形態の構成を示す放電維持電極構造を示す。これは
透明電極の一方の先端形状を曲率半径の小さい部分がな
いようにし、一方、透明電極の他方の先端部を曲率半径
の小さい部分がないメタル電極で覆ったものである。こ
の場合でも、透明電極の先端部での電界が緩和されるの
で、実施の形態１の場合と同様な効果が得られる。ま
た、Ｘ、Ｙ放電維持電極が対向している側（内側）の透
明電極の先端形状を曲率半径の小さい部分がないように
し、Ｘ、Ｙ放電維持電極が対向していない側（外側）の
透明電極の先端部を曲率半径の小さい部分がないメタル
電極で覆うことにより、内側で生じる強い発光をほとん
ど光を透過しないメタル電極で妨げることがないため、
実施の形態１の場合に比べて輝度が高くなるという効果
を持つ。(Embodiment 3) FIG. 5 shows a discharge sustaining electrode structure showing a structure of an embodiment of the third invention. This is one in which the tip shape of the transparent electrode does not have a portion with a small radius of curvature, while the other tip portion of the transparent electrode is covered with a metal electrode without a portion with a small radius of curvature. Even in this case, since the electric field at the tip of the transparent electrode is relaxed, the same effect as in the first embodiment can be obtained. Further, the tip shape of the transparent electrode on the side (inner side) where the X and Y discharge sustaining electrodes face each other is made so that there is no portion having a small radius of curvature, and the X and Y discharge sustaining electrodes on the side (outer side) not facing each other By covering the tip of the transparent electrode with a metal electrode that does not have a small radius of curvature, strong light emission that occurs inside is not blocked by the metal electrode that transmits almost no light.
This has the effect of increasing the brightness as compared with the case of the first embodiment.
【００１７】なお、図６に示すように、放電維持電極の
低抵抗化のために透明電極上にメタル電極を付加した場
合においても、透明電極の先端部において電界集中が緩
和されるので、実施の形態１の場合と同様な効果が得ら
れる。As shown in FIG. 6, even when a metal electrode is added on the transparent electrode to reduce the resistance of the discharge sustaining electrode, the electric field concentration is relieved at the tip of the transparent electrode. The same effect as in the case of the first aspect can be obtained.
【００１８】（実施の形態４）図９及び図１０は第４の
発明の一実施の形態である放電維持電極の形成方法の特
徴を示したものである。以下、同図を用いて放電維持電
極の形成手順について述べる。(Embodiment 4) FIGS. 9 and 10 show the characteristics of a method for forming a discharge sustaining electrode according to an embodiment of the fourth invention. The procedure for forming the sustaining electrodes will be described below with reference to FIG.
【００１９】ガラス基板上に透明電極のパターニングを
行う（ステップ１）。透明電極の先端部を覆うように、
第１のメタル電極のパターニングを行う（ステップ
２）。第１のメタル電極の上に第２のメタル電極のパタ
ーニングを行う（ステップ３）。図９は（ステップ１）
から（ステップ３）までの手順を施した後のメタル電極
構造の特徴を示すものである。The transparent electrode is patterned on the glass substrate (step 1). To cover the tip of the transparent electrode,
Patterning of the first metal electrode is performed (step 2). Patterning of the second metal electrode is performed on the first metal electrode (step 3). Figure 9 (Step 1)
It shows the characteristics of the metal electrode structure after performing the procedure from (1) to (Step 3).
【００２０】次に、第１のメタル電極に対してエッチン
グを行う（ステップ４）。第１のメタル電極と第２のメ
タル電極のエッチング比を適度に調整することによっ
て、図１０に示すように、第１のメタル電極周辺の材料
をアンダーカットすることによって、確実にメタル電極
の曲率半径の最小値を大きくすることができる。従っ
て、放電維持電極の縁端部での電界が緩和されるので実
施の形態１の場合と同様な効果が得られる。Next, the first metal electrode is etched (step 4). By properly adjusting the etching ratio of the first metal electrode and the second metal electrode, as shown in FIG. 10, the material around the first metal electrode is undercut, thereby ensuring the curvature of the metal electrode. The minimum radius can be increased. Therefore, the electric field at the edge of the discharge sustaining electrode is relaxed, and the same effect as in the first embodiment can be obtained.
【００２１】本発明によれば、透明電極の先端部全てに
２種類のメタル電極を形成しなければならないため、従
来に比べて工数は多くなる。しかしながら、本発明はエ
ッチング時間やメタル電極のエッチング比、エッチング
液を調整することにより、形状を自由に設定できるとい
う特長を持っている。なお、以上の説明では透明電極の
先端部に形成するメタル電極の種類を２種類として説明
してきたが、メタル電極の種類は複数であっても構わな
い。According to the present invention, since two kinds of metal electrodes must be formed on all the tip portions of the transparent electrode, the number of steps is increased as compared with the conventional case. However, the present invention has a feature that the shape can be freely set by adjusting the etching time, the etching ratio of the metal electrode, and the etching solution. In the above description, two types of metal electrodes are formed on the tip of the transparent electrode, but there may be a plurality of types of metal electrodes.
【００２２】（実施の形態５）図１１及び図１２は第５
の発明の一実施の形態である放電維持電極の形成方法の
特徴を示したものである。以下、同図を用いて放電維持
電極の形成手順について述べる。(Fifth Embodiment) FIGS. 11 and 12 show a fifth embodiment.
The characteristics of the method for forming a discharge sustaining electrode, which is an embodiment of the invention of FIG. The procedure for forming the sustaining electrodes will be described below with reference to FIG.
【００２３】ガラス基板上に透明電極のパターニングを
行う（ステップ１）。透明電極の先端部を覆うようにメ
タル電極のパターニングを行う（ステップ２）。図１１
は（ステップ１）及び（ステップ２）の手順を施した後
のメタル電極構造の特徴を示すものである。The transparent electrode is patterned on the glass substrate (step 1). The metal electrode is patterned so as to cover the tip of the transparent electrode (step 2). Figure 11
Shows the characteristics of the metal electrode structure after performing the procedure of (step 1) and (step 2).
【００２４】次に、図１１に示すようにガラス基板表面
に対して斜め方向からメタル電極に力を加え、メタル電
極がガラス基板に沿って広がるように変形させる（ステ
ップ３）。変形後のメタル電極の概念図を図１２に示
す。本発明により、メタル電極とガラス基板が接した部
分に生じていたメタル電極の曲率半径の最小値を大きく
することができる。Next, as shown in FIG. 11, a force is applied to the metal electrode obliquely with respect to the surface of the glass substrate to deform the metal electrode so as to spread along the glass substrate (step 3). FIG. 12 shows a conceptual diagram of the deformed metal electrode. According to the present invention, it is possible to increase the minimum value of the radius of curvature of the metal electrode generated in the portion where the metal electrode and the glass substrate are in contact with each other.
【００２５】従って、放電維持電極の縁端部で電界が緩
和されるので、実施の形態１の場合と同様な効果が得ら
れる。また、本発明ではエッチッグ工程は不要となり、
かつ透明電極先端部に形成されるメタル電極は１種類で
あるので、実施の形態４に比べてプロセスは簡単であ
る。Therefore, since the electric field is relaxed at the edge of the discharge sustaining electrode, the same effect as in the first embodiment can be obtained. Further, in the present invention, the etching process is unnecessary,
In addition, since there is only one type of metal electrode formed on the tip of the transparent electrode, the process is simpler than in the fourth embodiment.
【００２６】[0026]
【発明の効果】以上のように第１の発明によれば、誘電
体中の最大電界強度を著しく緩和できるので、放電セル
の耐電圧特性を向上させることができる。従って、例え
ば誘電体を従来よりも薄くすることができるので、より
低い電圧で駆動できる面放電型プラズマ・ディスプレイ
・パネル、あるいは高輝度の面放電型プラズマ・ディス
プレイ・パネルを選択的に実現できるという実用上大な
る効果がある。As described above, according to the first aspect of the present invention, the maximum electric field strength in the dielectric can be remarkably relaxed, so that the withstand voltage characteristic of the discharge cell can be improved. Therefore, for example, since the dielectric can be made thinner than before, it is possible to selectively realize a surface discharge plasma display panel that can be driven at a lower voltage or a high brightness surface discharge plasma display panel. It has a great effect in practical use.
【００２７】第２の発明によれば、第１の発明と同様な
効果が得られるだけでなく、透明電極の先端部における
メタル電極の形成が不必要なので、第１の発明に比べて
プロセスが簡単であるという効果も得られる。According to the second invention, not only the same effect as the first invention can be obtained, but also the formation of the metal electrode at the tip of the transparent electrode is unnecessary. The effect of being simple is also obtained.
【００２８】第３の発明によれば、第１の発明と同様な
効果が得られるだけでなく、Ｘ、Ｙ放電維持電極が対向
している側で生じる強い発光を光の透過率の低いメタル
電極で妨げることがないため、第１の発明に比べて輝度
が高くなるという効果を持つ。また、メタル電極を付加
したことにより、低抵抗化も実現できる。According to the third invention, not only the same effect as in the first invention can be obtained, but also strong light emission generated on the side where the X and Y discharge sustaining electrodes face each other can be obtained with a metal having a low light transmittance. Since there is no obstruction by the electrodes, there is an effect that the brightness is higher than that in the first invention. Further, by adding a metal electrode, it is possible to realize low resistance.
【００２９】第４の発明によれば、透明電極先端に形成
されたメタル電極の形状を自由に設定できるので、第１
の発明を実現できる。According to the fourth aspect of the invention, the shape of the metal electrode formed at the tip of the transparent electrode can be freely set.
The invention of can be realized.
【００３０】第５の発明によれば、第４の発明と同様な
効果が得られるだけでなく、エッチッグ工程は不要とな
り、かつ透明電極先端部に形成されるメタル電極は１種
類であるので、第４の発明に比べてプロセスは簡単であ
るという実用上顕著な効果がある。According to the fifth invention, not only the same effect as the fourth invention can be obtained, but also the etching step is not necessary and the metal electrode formed on the tip of the transparent electrode is of one kind. Compared with the fourth aspect of the invention, the process is simple and has a remarkable effect in practical use.
【図１】第１の発明の一実施の形態の第１の構成を示す
放電維持電極構造の構成図FIG. 1 is a configuration diagram of a discharge sustaining electrode structure showing a first configuration of an embodiment of a first invention.
【図２】同第２の構成を示す放電維持電極構造の構成図FIG. 2 is a configuration diagram of a discharge sustaining electrode structure showing the second configuration.
【図３】第２の発明の一実施の形態の第１の構成を示す
放電維持電極構造の構成図FIG. 3 is a configuration diagram of a discharge sustaining electrode structure showing a first configuration of an embodiment of a second invention.
【図４】同第２の構成を示す放電維持電極構造の構成図FIG. 4 is a configuration diagram of a discharge sustaining electrode structure showing the second configuration.
【図５】第３の発明の一実施の形態の第１の構成を示す
放電維持電極構造の構成図FIG. 5 is a configuration diagram of a discharge sustaining electrode structure showing a first configuration of an embodiment of a third invention.
【図６】同第２の構成を示す放電維持電極構造の構成図FIG. 6 is a configuration diagram of a discharge sustaining electrode structure showing the second configuration.
【図７】従来の放電維持電極構造の特徴を説明するため
の概念図FIG. 7 is a conceptual diagram for explaining characteristics of a conventional discharge sustaining electrode structure.
【図８】本発明の放電維持電極構造の特徴を説明するた
めの概念図FIG. 8 is a conceptual diagram for explaining the features of the discharge sustaining electrode structure of the present invention.
【図９】第４の発明の一実施の形態である前半の放電維
持電極形成工程を説明するための概念図FIG. 9 is a conceptual diagram for explaining a first half of the sustaining electrode forming step which is an embodiment of the fourth invention.
【図１０】第４の発明の一実施の形態である後半の放電
維持電極形成工程を説明するための概念図FIG. 10 is a conceptual diagram for explaining a latter half of the sustaining electrode forming step which is an embodiment of the fourth invention.
【図１１】第５の発明の一実施の形態である前半の放電
維持電極形成工程を説明するための概念図FIG. 11 is a conceptual diagram for explaining a first half of the sustaining electrode forming step which is an embodiment of the fifth invention.
【図１２】第５の発明の一実施の形態である後半の放電
維持電極形成工程を説明するための概念図FIG. 12 is a conceptual diagram for explaining the latter half of the sustaining electrode forming step which is an embodiment of the fifth invention.
【図１３】本発明の一実施例の面放電型プラズマ・ディ
スプレイ・パネル放電セルの構成材料及び各電極電圧の
パターンを示す断面図FIG. 13 is a cross-sectional view showing a constituent material of a surface discharge type plasma display panel discharge cell and an electrode voltage pattern according to an embodiment of the present invention.
【図１４】従来の放電維持電極を用いた場合のｘ放電維
持電極付近の電界分布を示す図FIG. 14 is a diagram showing an electric field distribution in the vicinity of an x discharge sustaining electrode when a conventional discharge sustaining electrode is used.
【図１５】従来の放電維持電極を用いた場合の透明電極
先端部付近の電界分布を示す図FIG. 15 is a diagram showing an electric field distribution in the vicinity of a transparent electrode tip portion when a conventional discharge sustaining electrode is used.
【図１６】本発明の放電維持電極を用いた場合のｘ放電
維持電極付近の電界分布を示す図FIG. 16 is a diagram showing an electric field distribution near the x discharge sustaining electrode when the discharge sustaining electrode of the present invention is used.
【図１７】本発明の放電維持電極を用いた場合の透明電
極先端部付近の電界分布を示す図FIG. 17 is a diagram showing an electric field distribution near the tip of the transparent electrode when the discharge sustaining electrode of the present invention is used.
【図１８】面放電型プラズマ・ディスプレイ・パネルの
放電セル構造の概要を説明するための斜視図FIG. 18 is a perspective view for explaining an outline of a discharge cell structure of a surface discharge type plasma display panel.
１１ 第１ガラス基板
１２ Ｘ放電維持電極
１３ Ｙ放電維持電極
１４ 第２ガラス基板
１５ データ電極
１６ 蛍光体
１７ 誘電体
１８ 保護膜
１９ 隔壁
２０ 放電空間
２１ 透明電極
２２ 透明電極の先端部を覆うように形成されたメタル
電極
２３ 低抵抗化のために備えられたメタル電極
２４ 第１のメタル電極
２５ 第２のメタル電極11 First Glass Substrate 12 X Discharge Sustaining Electrode 13 Y Discharge Sustaining Electrode 14 Second Glass Substrate 15 Data Electrode 16 Fluorescent Material 17 Dielectric 18 Protective Film 19 Partition 20 Discharge Space 21 Transparent Electrode 22 Cover the tip of the transparent electrode Formed metal electrode 23 Metal electrode 24 provided to reduce resistance First metal electrode 25 Second metal electrode
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平２−284334（ＪＰ，Ａ) 特開 平３−101031（ＪＰ，Ａ) 特開 平４−2029（ＪＰ，Ａ) 特開 平５−41166（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) H01J 11/02 H01J 9/02 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-2-284334 (JP, A) JP-A-3-101031 (JP, A) JP-A-4-2029 (JP, A) JP-A-5- 41166 (JP, A) (58) Fields investigated (Int.Cl. 7 , DB name) H01J 11/02 H01J 9/02
Claims (6)
平行に形成され、さらに前記放電維持電極上に誘電体と
保護膜が形成された第１のガラス基板と、隔壁とデータ
電極と蛍光体が形成された第２のガラス基板と、前記第
１のガラス基板と前記第２のガラス基板を張り合わせる
ことによってできる放電空間とを備えた面放電型プラズ
マ・ディスプレイ・パネルにおいて、 前記放電維持電極が透明電極とメタル電極とから構成さ
れ、透明電極の両端部の先端部を覆うように、曲率半径
の小さな部分がない形状をもつメタル電極を備えたこと
を特徴とする面放電型プラズマ・ディスプレイ・パネ
ル。1. A first glass substrate on which two discharge sustaining electrodes are formed in parallel per unit discharge cell, and a dielectric and a protective film are further formed on the discharge sustaining electrodes, barrier ribs, data electrodes, and fluorescent light. A surface discharge type plasma display panel comprising: a second glass substrate having a body formed therein; and a discharge space formed by bonding the first glass substrate and the second glass substrate together. A surface discharge type plasma electrode characterized in that the electrode is composed of a transparent electrode and a metal electrode, and is provided with a metal electrode having a shape with no small radius of curvature so as to cover the tips of both ends of the transparent electrode. Display panel.
平行に形成され、さらに前記放電維持電極上に誘電体と
保護膜が形成された第１のガラス基板と、隔壁とデータ
と蛍光体層が形成された第２のガラス基板と、前記第１
のガラス基板と前記第２のガラス基板とを張り合わせる
ことによってできる放電空間とを備えた面放電型プラズ
マ・ディスプレイ・パネルにおいて、 前記放電維持電極が透明電極とメタル電極から構成さ
れ、前記透明電極の両端部の先端部を曲率半径の小さい
部分がない形状にしたことを特徴とする面放電型プラズ
マ・ディスプレイ・パネル。2. A first glass substrate on which two discharge sustaining electrodes are formed in parallel per unit discharge cell, and a dielectric and a protective film are further formed on the discharge sustaining electrodes, barrier ribs, data and phosphors. A second glass substrate having a layer formed thereon, and the first glass substrate
In a surface discharge type plasma display panel comprising a glass substrate and a discharge space formed by bonding the second glass substrate to each other, the discharge sustaining electrode is composed of a transparent electrode and a metal electrode. A surface discharge type plasma display panel, characterized in that the tip ends of the both ends are shaped so as not to have a portion with a small radius of curvature.
透明電極上に備えたことを特徴とする請求項２記載の面
放電型プラズマ・ディスプレイ・パネル。3. A surface discharge type plasma display panel according to claim 2 , wherein a metal electrode for reducing resistance is provided on the transparent electrode.
平行に形成され、さらに前記放電維持電極上に誘電体と
保護膜が形成された第１のガラス基板と、隔壁とデータ
電極と蛍光体層が形成された第２のガラス基板と、前記
第１のガラス基板を張り合わせることによってできる放
電空間とを備えた面放電型プラズマ・ディスプレイ・パ
ネルにおいて、 前記放電維持電極が透明電極とメタル電極から構成さ
れ、前記透明電極の一方の先端部は曲率半径の小さい部
分がない形状にし、透明電極の他方の先端部は曲率半径
の小さい部分がない形状のメタル電極で覆ったことを特
徴とする面放電型プラズマ・ディスプレイ・パネル。4. A first glass substrate on which two discharge sustaining electrodes are formed in parallel per unit discharge cell, and a dielectric and a protective film are further formed on the discharge sustaining electrodes, barrier ribs, data electrodes, and fluorescent light. A surface discharge type plasma display panel comprising a second glass substrate having a body layer formed thereon and a discharge space formed by bonding the first glass substrate together, wherein the discharge sustaining electrode is a transparent electrode and a metal. One end of the transparent electrode is formed in a shape without a portion having a small radius of curvature, and the other end of the transparent electrode is covered with a metal electrode having a shape without a portion having a small radius of curvature. Surface discharge type plasma display panel.
透明電極上に備えたことを特徴とする請求項４記載の面
放電型プラズマ・ディスプレイ・パネル。5. The surface discharge type plasma display panel according to claim 4 , wherein a metal electrode for reducing resistance is provided on the transparent electrode.
ターニング、第２に前記透明電極縁端部におけるメタル
電極のパターニング、第３にメタル電極のエッチング、
第４にメタル電極にガラス基板表面に対して斜め方向か
ら力を加え、メタル電極がガラス基板に沿って広がるよ
うに変形させることによって、メタル電極とガラス基板
が接した部分に生じていたメタル電極の曲率半径の最小
値を大きくしたことを特徴とする面放電型プラズマ・デ
ィスプレイ・パネルの放電セル中の放電維持電極構造の
形成方法。6. A first patterning of a transparent electrode on a glass substrate, a second patterning of a metal electrode on the edge of the transparent electrode, and a third etching of the metal electrode.
Fourthly, by applying a force to the metal electrode obliquely with respect to the surface of the glass substrate and deforming the metal electrode so as to spread along the glass substrate, the metal electrode generated at the portion where the metal electrode and the glass substrate are in contact A method of forming a sustaining electrode structure in a discharge cell of a surface discharge type plasma display panel, characterized in that the minimum radius of curvature of the electrode is increased.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14195397A JP3427676B2 (en) | 1997-05-30 | 1997-05-30 | Surface discharge type plasma display panel and method for forming discharge sustaining electrode thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14195397A JP3427676B2 (en) | 1997-05-30 | 1997-05-30 | Surface discharge type plasma display panel and method for forming discharge sustaining electrode thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10334810A JPH10334810A (en) | 1998-12-18 |
| JP3427676B2 true JP3427676B2 (en) | 2003-07-22 |
Family
ID=15303977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14195397A Expired - Fee Related JP3427676B2 (en) | 1997-05-30 | 1997-05-30 | Surface discharge type plasma display panel and method for forming discharge sustaining electrode thereof |
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| Country | Link |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6380677B1 (en) | 1998-07-16 | 2002-04-30 | Lg Electronics Inc. | Plasma display panel electrode |
| US6869751B1 (en) * | 1999-10-19 | 2005-03-22 | Matsushita Electric Industrial Co., Ltd. | Method of manufacturing metal electrode |
| JP4778665B2 (en) | 2000-08-30 | 2011-09-21 | パナソニック株式会社 | Method for manufacturing plasma display device |
| KR20030023401A (en) * | 2001-09-13 | 2003-03-19 | 엘지전자 주식회사 | Electroad of plasma display panel |
| KR20070047994A (en) * | 2005-11-03 | 2007-05-08 | 엘지전자 주식회사 | Back substrate structure and making method of electrode for plasma display panel |
-
1997
- 1997-05-30 JP JP14195397A patent/JP3427676B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH10334810A (en) | 1998-12-18 |
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