JP2006216452A - Plasma display panel and plasma display device - Google Patents

Plasma display panel and plasma display device Download PDF

Info

Publication number
JP2006216452A
JP2006216452A JP2005029243A JP2005029243A JP2006216452A JP 2006216452 A JP2006216452 A JP 2006216452A JP 2005029243 A JP2005029243 A JP 2005029243A JP 2005029243 A JP2005029243 A JP 2005029243A JP 2006216452 A JP2006216452 A JP 2006216452A
Authority
JP
Japan
Prior art keywords
electrodes
discharge
electrode
cell
plasma display
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.)
Withdrawn
Application number
JP2005029243A
Other languages
Japanese (ja)
Inventor
Hiroshi Ohira
浩史 大平
Takashi Sasaki
孝 佐々木
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Plasma Display Ltd
Original Assignee
Fujitsu Hitachi Plasma Display Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fujitsu Hitachi Plasma Display Ltd filed Critical Fujitsu Hitachi Plasma Display Ltd
Priority to JP2005029243A priority Critical patent/JP2006216452A/en
Publication of JP2006216452A publication Critical patent/JP2006216452A/en
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2211/00—Plasma display panels with alternate current induction of the discharge, e.g. AC-PDPs
    • H01J2211/20—Constructional details
    • H01J2211/22—Electrodes
    • H01J2211/24—Sustain electrodes or scan electrodes
    • H01J2211/245—Shape, e.g. cross section or pattern
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2211/00—Plasma display panels with alternate current induction of the discharge, e.g. AC-PDPs
    • H01J2211/20—Constructional details
    • H01J2211/22—Electrodes
    • H01J2211/32—Disposition of the electrodes
    • H01J2211/323—Mutual disposition of electrodes

Landscapes

  • Gas-Filled Discharge Tubes (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Control Of Gas Discharge Display Tubes (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a plasma display panel having a uniform discharge starting voltage. <P>SOLUTION: This plasma display panel is provided with a first substrate 1 and a second substrate 2, wherein the first substrate is provided with a plurality of first electrodes and second electrodes 11 and 13 for executing sustained discharge, and a dielectric layer 15; and the second substrate is provided with a plurality of third electrodes 27, a plurality of barrier ribs 20 and phosphor layers 21, 22 and 23 sequentially formed in parts partitioned by the barrier ribs corresponding to the third electrodes for emitting light of respective red, green and blue colors. The first and second electrodes 11 and 13 are formed oppositely to each other in order to execute discharge, are provided with edges facing to each other in each cell and having changing intervals; and the change of the facing intervals of the first and second electrodes in the cells of at least one color is different from those of the other colors. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、パーソナルコンピュータやワークステーションなどのディスプレイ装置、平面型テレビジョン、広告や情報などの表示用プラズマディスプレイに使用されるＡＣ型プラズマディスプレイ装置（ＰＤＰ装置）に関する。   The present invention relates to an AC plasma display device (PDP device) used for a display device such as a personal computer or a workstation, a flat-screen television, or a plasma display for displaying advertisements or information.

ＡＣ型カラーＰＤＰ装置においては、表示するセルを規定する期間（アドレス期間）と表示点灯のための放電を行う表示期間（サステイン期間）とを分離したアドレス・表示分離方式が広く採用されている。この方式においては、アドレス期間で、点灯するセルに電荷を蓄積し、その電荷を利用してサステイン期間で表示のための放電を行う。   In an AC type color PDP device, an address / display separation method is widely adopted in which a period for defining a cell to be displayed (address period) and a display period (sustain period) for discharging for display lighting are separated. In this system, charges are accumulated in the cells to be lit in the address period, and discharge for display is performed in the sustain period using the charges.

また、ＰＤＰ装置には、第１の方向に伸びる複数の第１電極を互いに平行に設け、第１の方向に対して垂直な第２の方向に伸びる複数の第２電極を互いに平行に設けた２電極型の装置と、第１の方向に伸びる複数の第１電極と第２電極を交互に平行に設け、第１の方向に対して垂直な第２の方向に伸びる複数の第３電極を互いに平行に設けた３電極型の装置とがあり、近年は３電極型ＰＤＰが広く使用されている。さらに補助的役割りの電極を加えた４電極以上の構造も考案されている。   Further, the PDP device is provided with a plurality of first electrodes extending in the first direction in parallel with each other, and a plurality of second electrodes extending in the second direction perpendicular to the first direction are provided in parallel with each other. A two-electrode type device, and a plurality of first electrodes and second electrodes extending in the first direction are alternately provided in parallel, and a plurality of third electrodes extending in a second direction perpendicular to the first direction are provided. There are three-electrode type devices provided in parallel to each other, and in recent years, a three-electrode type PDP has been widely used. In addition, a structure of four or more electrodes including an auxiliary electrode has been devised.

この３電極型ＰＤＰの一般的な構造は、第１の基板に第１（Ｘ）電極と第２（Ｙ）電極を交互に平行に設け、第１の基板に対向する第２の基板に第１及び第２電極に垂直な方向に伸びる第３（アドレス）電極を設け、電極表面をそれぞれ誘電体層で覆う（アドレス電極は誘電体層で覆わない場合もある）。第２の基板上には更に、第３電極の間に第３電極と平行に伸びる１方向のストライプ状の隔壁、又はセルを各々分離するように第３電極及び第１と第２電極と平行配置される２次元格子状の隔壁を設け、隔壁の間に蛍光体層を形成した後、第１と第２基板を貼り合せる。従って、第３電極の上には誘電体層と蛍光体層、さらに隔壁が形成される場合もある。   The general structure of this three-electrode type PDP is such that first (X) electrodes and second (Y) electrodes are alternately provided in parallel on a first substrate, and a second substrate facing the first substrate has a second structure. A third (address) electrode extending in a direction perpendicular to the first and second electrodes is provided, and each electrode surface is covered with a dielectric layer (the address electrode may not be covered with a dielectric layer). Further on the second substrate, the third electrode and the first and second electrodes are parallel to each other so as to separate one-way stripe-shaped partition walls or cells extending in parallel with the third electrode between the third electrodes. A two-dimensional lattice-shaped partition wall is provided and a phosphor layer is formed between the partition walls, and then the first and second substrates are bonded together. Therefore, a dielectric layer, a phosphor layer, and a partition may be formed on the third electrode.

第１と第２電極の間に電圧を印加して全セルの電極近傍の電荷（壁電荷）を一様な状態にした後、第２電極にスキャンパルスを順次印加し、スキャンパルスに同期して第３電極にアドレスパルスを印加して、点灯するセル内に選択的に壁電荷を残すアドレス動作を行った後、放電する隣接２電極間が交互に逆極性の電極となる維持放電パルスを印加してアドレス動作により壁電荷の残された点灯セルで維持放電を発生させて点灯を行う。蛍光体層は、放電により発生する紫外線により発光し、それを第１基板を通して見る。そのため、第１及び第２電極は、金属材料で形成された不透明なバス電極と、ＩＴＯ膜などの透明電極で形成され、透明電極を通して蛍光体層で発生した光を見れるようになっている。一般的なＰＤＰ装置の構造及び動作は広く知られているので、ここでは詳しい説明を省略する。   A voltage is applied between the first and second electrodes to make the charges (wall charges) near the electrodes of all cells uniform, and then a scan pulse is sequentially applied to the second electrode and synchronized with the scan pulse. An address pulse is applied to the third electrode and an address operation is performed to selectively leave wall charges in the cell to be lit, and then a sustain discharge pulse in which the adjacent two electrodes to be discharged are alternately reversed in polarity is applied. The sustaining discharge is generated in the lighting cell in which the wall charge is left by the application and the address operation, and lighting is performed. The phosphor layer emits light by the ultraviolet rays generated by the discharge and is viewed through the first substrate. For this reason, the first and second electrodes are formed of an opaque bus electrode made of a metal material and a transparent electrode such as an ITO film so that light generated in the phosphor layer can be seen through the transparent electrode. Since the structure and operation of a general PDP apparatus are widely known, detailed description thereof is omitted here.

ＰＤＰのように放電空間に放電ガスを封入して２電極間で放電を発生させる場合、放電の閾値電圧（放電開始電圧）は、２電極間の距離ｄと放電ガスの圧力ｐの積に応じて決定されることが知られており、その変化をこの積を横軸に放電開始電圧を縦軸にして示した曲線をパッシェンカーブという。パッシェンカーブは、２電極間の距離ｄと放電ガスの圧力ｐの積（ｐｄ積）がある値の時に最小値になり、その状態はパッシェンミニマムと呼ばれる。   When a discharge gas is sealed in a discharge space as in a PDP to generate a discharge between two electrodes, the threshold voltage for discharge (discharge start voltage) depends on the product of the distance d between the two electrodes and the pressure p of the discharge gas. A curve in which the change is shown on the horizontal axis and the discharge start voltage is on the vertical axis is called a Paschen curve. The Paschen curve has a minimum value when the product (pd product) of the distance d between the two electrodes and the pressure p of the discharge gas has a certain value, and the state is called a Paschen minimum.

上記の３電極型ＰＤＰの構成において、第１及び第２電極の透明電極は、一般に各セルで電極のエッジが平行で、エッジが間隔ｄで対向するような形状になっており、この間隔ｄと放電空間の放電ガスの圧力ｐによりパッシェンカーブが求まり、第１と第２電極間の放電開始電圧が決定される。この場合、各セルのｐｄ積は、設計値は同じでも間隔ｄの製造上のバラツキのために、ｐｄ積で決まる放電開始電圧はセル間でバラツキを持っていた。そのため、実際のＰＤＰ装置における駆動電圧は、放電開始電圧のバラツキを考慮して、放電開始電圧をパッシェンミニマムより高い値に設定し、たとえ放電開始電圧がばらついても確実に放電が発生するようにしていた。   In the configuration of the above-mentioned three-electrode type PDP, the transparent electrodes of the first and second electrodes are generally shaped so that the edges of the electrodes are parallel in each cell and the edges face each other with a distance d. The Paschen curve is determined by the pressure p of the discharge gas in the discharge space, and the discharge start voltage between the first and second electrodes is determined. In this case, the pd product of each cell has the same design value, but due to manufacturing variations of the interval d, the discharge start voltage determined by the pd product has variations between cells. For this reason, the drive voltage in an actual PDP device is set to a value higher than the Paschen minimum in consideration of variations in the discharge start voltage, so that the discharge is surely generated even if the discharge start voltage varies. It was.

例えば、特許文献１は、３電極型ＰＤＰにおいて、ｐｄ積をパッシェンミニマムより大きな値に設定することを記載している。   For example, Patent Document 1 describes that in a three-electrode PDP, the pd product is set to a value larger than the Paschen minimum.

また、３電極型ＰＤＰにおいて、放電を行う第１と第２電極の組に隣接する他の組の電極との間（逆スリットと呼ぶ）では放電が発生しないように間隔を広くしていたが、特許文献２は、この間隔を狭くして、この間隔のｐｄ積をパッシェンミニマムになる値より更に小さくして放電開始電圧を高くすることにより、逆スリットで放電が発生しないようにする構成を記載している。   Further, in the three-electrode type PDP, the interval was widened so as not to generate a discharge between other pairs of electrodes adjacent to the pair of the first and second electrodes that perform discharge (referred to as a reverse slit). Patent Document 2 has a configuration in which the discharge is not generated by the reverse slit by narrowing this interval and further reducing the pd product of this interval to a value lower than the Paschen minimum value to increase the discharge start voltage. It is described.

更に、特許文献３は、３電極型ＰＤＰにおいて、第１と第２電極の透明電極の間隔をｐｄ積がパッシェンミニマムになる値に設定することを記載している。   Furthermore, Patent Document 3 describes that, in a three-electrode type PDP, the interval between the transparent electrodes of the first and second electrodes is set to a value at which the pd product becomes a Paschen minimum.

以上、第１の基板に交互に第１と第２電極を設け、第２の基板に第１及び第２電極と交差するように第３電極を設ける３電極型ＰＤＰにおける第３放電電極間の距離について記載した公知例を説明したが、他にも各種の形状のＰＤＰが提案されている。   As described above, the first and second electrodes are alternately provided on the first substrate, and the third electrode is provided on the second substrate so as to intersect the first and second electrodes. Although the publicly known example describing the distance has been described, various other shapes of PDPs have been proposed.

特許文献１から３に記載された構成では、維持放電が行われる各セルにおける２つの透明電極のエッジが一定間隔ｄで対向する形状としている。パッシェンミニマムは、放電ガス圧ｐ＝１３３００Ｐａの時にｄ＝１００μｍであり、通常使用される放電ガス圧ｐ＝６７０００Ｐａの場合には、パッシェンミニマムにするにはｄ＝２０μｍとする必要がある。しかし、現状の製造技術では、製造上のバラツキのためこの間隔を安定して形成することはできない。特に、間隔が小さくなった場合には、隣接する電極同士が短絡する可能性もある。   In the configurations described in Patent Documents 1 to 3, the edges of the two transparent electrodes in each cell in which sustain discharge is performed are shaped to face each other at a constant interval d. In the Paschen minimum, d = 100 μm when the discharge gas pressure p = 13300 Pa, and in the case of the normally used discharge gas pressure p = 67000 Pa, it is necessary to set d = 20 μm to make the Paschen minimum. However, with the current manufacturing technology, this interval cannot be formed stably due to manufacturing variations. In particular, when the interval is reduced, adjacent electrodes may be short-circuited.

また、従来の鉛系低融点ガラスを使用した誘電体では、電極間の間隔が小さくなると耐圧の問題も発生する。   Further, in a dielectric using a conventional lead-based low-melting glass, a problem of withstand voltage occurs when the distance between the electrodes is reduced.

放電ガス圧ｐを下げれば、間隔ｄを大きくしてもパッシェンミニマムにできるが、一般に放電ガス圧ｐを下げると発光効率、寿命などの性能を劣化させる傾向にあり好ましくない。   If the discharge gas pressure p is lowered, the Paschen minimum can be achieved even if the interval d is increased. However, generally, lowering the discharge gas pressure p is not preferable because it tends to deteriorate performance such as luminous efficiency and life.

このように、維持放電が行われる２つの透明電極のエッジが一定間隔ｄで対向する従来技術では、間隔ｄのばらつきの影響を防止することができない。更に、蛍光体の塗布厚のバラツキから放電電圧もばらつく。   As described above, in the conventional technique in which the edges of the two transparent electrodes on which the sustain discharge is performed face each other at a constant interval d, the influence of the variation in the interval d cannot be prevented. Furthermore, the discharge voltage also varies due to variations in the coating thickness of the phosphor.

そこで、本出願人は、特願２００４−１３５３２１号で、維持放電を行う第１と第２電極の透明電極の間隔を、パッシェンミニマムを含む範囲内で徐々に変えて、たとえ間隔がばらついても放電開始電圧がパッシェンミニマムに対応する電圧になる構成を記載している。   Therefore, in the Japanese Patent Application No. 2004-135321, the present applicant gradually changes the interval between the transparent electrodes of the first and second electrodes that perform the sustain discharge within a range including the Paschen minimum, even if the interval varies. A configuration is described in which the discharge start voltage is a voltage corresponding to the Paschen minimum.

特開２００１−８４９０７号公報JP 2001-84907 A 特開２００１−８４９０６号公報JP 2001-84906 A 特開２００１−５２６２３号公報JP 2001-52623 A 特開２００４−２７３２６５号公報JP 2004-273265 A 特許第２８０１８９３号公報Japanese Patent No. 2801893

カラープラズマディスプレイパネルの場合、赤（Ｒ）、緑（Ｇ）及び青（Ｂ）の蛍光体を列毎に順に設ける。このような蛍光体は、アドレス電極の誘電体層の上（又はアドレス電極の上）及び隔壁の側面に塗布されるが、色毎に塗り特性が異なるため、第１の基板の表面から蛍光体の表面までの距離が異なり、色毎にセルの放電開始電圧に差を生じることになる。このため、このような色毎の放電開始電圧に差や電極間隔のばらつきがあっても全セルで確実に放電を発生させるためには、駆動電圧を高くする必要があり、その分駆動回路のコストが増加するという問題があった。   In the case of a color plasma display panel, red (R), green (G), and blue (B) phosphors are sequentially provided for each column. Such a phosphor is applied on the dielectric layer of the address electrode (or on the address electrode) and on the side surface of the partition wall. However, since the coating characteristics differ for each color, the phosphor is applied from the surface of the first substrate. The distance to the surface of the cell differs, and a difference occurs in the discharge start voltage of the cell for each color. For this reason, in order to reliably generate a discharge in all cells even if there is a difference in the discharge start voltage for each color or a variation in electrode spacing, it is necessary to increase the drive voltage. There was a problem that the cost increased.

本発明は、簡単な構成で色毎の放電開始電圧の差を低減し、低い駆動電圧でも全セルで確実に放電を発生できるプラズマディスプレイパネルの実現を目的とする。   An object of the present invention is to realize a plasma display panel that can reduce a difference in discharge start voltage for each color with a simple configuration and can reliably generate a discharge in all cells even at a low driving voltage.

上記目的を実現するため、本発明のプラズマディスプレイパネル（ＰＤＰ）は、維持放電を行う第１電極と第２電極の対向するエッジの間隔が、各セル内で変化するように構成し、更に色毎の放電開始電圧の差に応じてエッジの間隔変化が異なるようにする。   In order to achieve the above object, the plasma display panel (PDP) of the present invention is configured such that the interval between the opposing edges of the first electrode and the second electrode that perform the sustain discharge changes in each cell, and further the color The edge interval change is made different according to the difference in the discharge start voltage.

すなわち、本発明のプラズマディスプレイパネル（ＰＤＰ）は、第１の基板と、前記第１の基板に対向するように配置され、前記第１の基板との間に放電ガスが封入された放電空間を形成する第２の基板とを備え、前記第１の基板は、交互に略平行に配置され、維持放電を行う複数の第１電極及び第２電極と、前記複数の第１電極及び第２電極を覆う誘電体層とを備え、前記第２の基板は、前記複数の第１電極及び第２電極の伸びる方向に対して略垂直な方向に配置された複数の第３電極と、前記複数の第３電極の間に設けられた複数の隔壁と、各第３電極の表面及び該第３電極の両側の隔壁の側面に順に設けられた赤色、緑色及び青色の各色を発光する蛍光体層とを備え、維持放電を行う前記第１電極及び第２電極と前記隔壁によりセルが規定されるプラズマディスプレイパネルであって、前記複数の第１電極及び第２電極は、放電を行うため対向して設けられ、前記第１及び第２の基板に垂直な方向から見た時に、各セル内で対向する間隔が変化するエッジを備え、少なくとも１つの色のセルにおける前記第１及び第２電極の対向する前記エッジの間隔の変化が、他の色の前記エッジの間隔の変化と異なることを特徴とする。   That is, the plasma display panel (PDP) according to the present invention has a discharge space in which a discharge gas is sealed between the first substrate and the first substrate, the discharge gas being sealed between the first substrate and the first substrate. A plurality of first electrodes and second electrodes which are alternately disposed substantially in parallel and perform sustain discharge, and the plurality of first electrodes and second electrodes. A plurality of third electrodes disposed in a direction substantially perpendicular to a direction in which the plurality of first electrodes and the second electrode extend, and the plurality of third electrodes. A plurality of barrier ribs provided between the third electrodes, a phosphor layer for emitting each color of red, green and blue, which is sequentially provided on the surface of each third electrode and the side surfaces of the barrier ribs on both sides of the third electrode; And a cell is formed by the first and second electrodes for performing a sustain discharge and the partition wall. The plurality of first electrodes and the second electrodes are provided to face each other to perform discharge, and when viewed from a direction perpendicular to the first and second substrates, An edge having a variable interval in the cell, and a change in the interval between the opposing edges of the first and second electrodes in a cell of at least one color is different from a change in the interval between the edges of other colors It is characterized by that.

本発明によれば、維持放電を行う第１電極と第２電極は、対向するエッジの間隔が変化する形状であり、放電開始電圧はエッジの間隔変化幅に対応した電圧範囲を有する。そのため、電極間に所定の電圧を印加する場合、たとえ対向するエッジの間隔のバラツキがあっても、この所定の電圧が上記の放電開始電圧の範囲内に入るので、確実に放電を発生させることがでる。また、色毎の放電電圧特性の差異に応じて、色毎に間隔の変化具合を異ならせるので、色毎の放電電圧特性の差異を低減することができる。   According to the present invention, the first electrode and the second electrode that perform the sustain discharge have a shape in which the interval between the opposing edges changes, and the discharge start voltage has a voltage range corresponding to the edge interval change width. For this reason, when a predetermined voltage is applied between the electrodes, even if there is a variation in the distance between the opposing edges, the predetermined voltage falls within the range of the discharge start voltage, so that a discharge can be reliably generated. I get out. In addition, since the change in the interval is made different for each color according to the difference in the discharge voltage characteristic for each color, the difference in the discharge voltage characteristic for each color can be reduced.

複数の第１電極は、略平行に設けられた複数の第１バス電極と、各第１バス電極からセル毎に突き出た複数の透明な第１放電電極とで構成し、同様に複数の第２電極は、略平行に設けられた複数の第２バス電極と、各第２バス電極からセル毎に突き出た複数の透明な第２放電電極とで構成し、第１放電電極と第２放電電極の間で維持放電を行い、第１放電電極と第２放電電極の対向するエッジの間隔が、前記第１及び第２の基板に垂直な方向から見た時に、各セル内で変化するようにし、更に色毎の放電開始電圧の差に応じて第１放電電極と第２放電電極の対向するエッジの間隔変化が異なるようにする。   The plurality of first electrodes includes a plurality of first bus electrodes provided substantially in parallel and a plurality of transparent first discharge electrodes protruding from each first bus electrode for each cell, and similarly, a plurality of first electrodes The two electrodes are composed of a plurality of second bus electrodes provided substantially in parallel and a plurality of transparent second discharge electrodes protruding from each second bus electrode for each cell, and the first discharge electrode and the second discharge Sustain discharge is performed between the electrodes, and the interval between the opposing edges of the first discharge electrode and the second discharge electrode changes in each cell when viewed from a direction perpendicular to the first and second substrates. Furthermore, the change in the distance between the opposing edges of the first discharge electrode and the second discharge electrode is made different according to the difference in the discharge start voltage for each color.

現在、プラズマディスプレイパネルで一般に用いられている赤色、緑色及び青色の蛍光体を塗布した場合の放電開始電圧は、緑色＞青色＞赤色の順で高い。従って、緑色のセルにおけるエッジ間隔を他の色のセルにおけるエッジ間隔より小さくすれば、緑色のセルにおける放電確率が高くなるため、色毎の電圧差を低減することができる。なお、本発明によれば、第１電極と第２電極の対向するエッジの間隔は変化するので、エッジ間隔は、例えば、間隔の平均値、最小間隔幅、最大間隔幅などで表すことになる。   The discharge start voltage when red, green and blue phosphors commonly used in plasma display panels are applied is higher in the order of green> blue> red. Therefore, if the edge interval in the green cell is made smaller than the edge interval in the other color cells, the discharge probability in the green cell is increased, so that the voltage difference for each color can be reduced. According to the present invention, since the interval between the opposing edges of the first electrode and the second electrode changes, the edge interval is expressed by, for example, the average value of the interval, the minimum interval width, the maximum interval width, or the like. .

例えば、第１及び第２電極の対向するエッジの間隔の最小値は、略２０μｍであり、最大値は、略１００μｍ以下、望ましくは５０μｍ以下である。   For example, the minimum value of the distance between the opposing edges of the first and second electrodes is approximately 20 μm, and the maximum value is approximately 100 μm or less, preferably 50 μm or less.

第１及び第２電極の対向するエッジは、各種の形状が可能であり、例えば、対向するエッジが所定の角度をなす直線形状や、間隔が段階的に変化する階段状の形状、間隔が徐々に変化する曲線形状などがある。いずれの場合も、色に応じてエッジの全体的な傾きが異なる。   The opposing edges of the first and second electrodes can have various shapes, for example, a linear shape in which the opposing edges form a predetermined angle, a stepped shape in which the interval changes stepwise, and the interval gradually. There is a curve shape that changes. In either case, the overall inclination of the edge varies depending on the color.

また、維持放電特性が色毎に異なるだけでなく、アドレス放電から第１電極と第２電極間の放電が発生する場合の放電特性も色毎に異なる。そこで、セル内における第３電極の位置を、第１及び第２電極の対向するエッジの間隔の変化に応じて異ならせることにより、色毎のアドレス放電特性の差も低減できる。   Further, not only the sustain discharge characteristics are different for each color, but also the discharge characteristics when the discharge between the first electrode and the second electrode is generated from the address discharge is different for each color. Therefore, by making the position of the third electrode in the cell different according to the change in the distance between the opposing edges of the first and second electrodes, the difference in address discharge characteristics for each color can also be reduced.

複数の第１及び第２電極を覆うように第１の基板に設けられた誘電体層は、気相成膜法により形成された珪素化合物であることが望ましい。従来の誘電体層の厚さは、一般に３０μｍ程度であり、電極に電圧を印加した場合に誘電体層表面に形成される電界形状は、誘電体層の厚さの影響で、かならずしも電極形状と同じにはならないことが電界シミュレーションにより判明している。電極形状に正確に対応した電界を形成するのは誘電体層の厚さはできるだけ薄いこと、例えば１０μｍ程度にすることが望ましい。このような誘電体層は、気相成膜法により形成できる。   The dielectric layer provided on the first substrate so as to cover the plurality of first and second electrodes is preferably a silicon compound formed by a vapor deposition method. The thickness of the conventional dielectric layer is generally about 30 μm, and the shape of the electric field formed on the surface of the dielectric layer when a voltage is applied to the electrode depends on the thickness of the dielectric layer. It has been found by electric field simulation that they are not the same. In order to form an electric field that accurately corresponds to the electrode shape, it is desirable that the thickness of the dielectric layer be as thin as possible, for example, about 10 μm. Such a dielectric layer can be formed by a vapor deposition method.

放電ガスは、少なくともネオンとキセノンを含み、キセノンの混合比が１０％以上であることが望ましい。   The discharge gas preferably contains at least neon and xenon, and the mixing ratio of xenon is preferably 10% or more.

本発明によれば、色毎の放電開始電圧の差を低減し、低い駆動電圧でも全セルで確実に放電を発生できるプラズマディスプレイパネルが簡単な構成で実現できる。更に、このプラズマディスプレイパネルを使用すれば、低コストの駆動回路を使用できるので、高品質及び低価格のＰＤＰ装置が実現できる。   According to the present invention, it is possible to realize a plasma display panel with a simple configuration that can reduce the difference in discharge start voltage for each color and can reliably generate discharge in all cells even with a low drive voltage. Furthermore, if this plasma display panel is used, a low-cost drive circuit can be used, so that a high-quality and low-cost PDP device can be realized.

図１は、本発明の第１実施例のプラズマディスプレイ装置（ＰＤＰ装置）の全体構成を示す図である。図示のように、プラズマディスプレイパネル３０は、横方向（長手方向）に伸びる第１電極（Ｘ電極）群及び第２電極（Ｙ電極）群と、縦方向に伸びる第３電極（アドレス電極）群を有する。Ｘ電極群とＹ電極群は、交互に配置され、隣接するＸ電極とＹ電極が対をなす。Ｘ電極群は第１駆動回路３１に接続され、共通に駆動される。Ｙ電極群は、第２駆動回路３２に接続され、各Ｙ電極に順次スキャンパルスが印加されると共に、スキャンパルスを印加する時以外は共通に駆動される。アドレス電極群は、第３駆動回路３３に接続され、スキャンパルスに同期して独立にアドレスパルスが印加される。第１から第３駆動回路３１から３３は、制御回路３４により制御され、各回路には電源回路３５から電力が供給される。   FIG. 1 is a diagram showing an overall configuration of a plasma display apparatus (PDP apparatus) according to a first embodiment of the present invention. As illustrated, the plasma display panel 30 includes a first electrode (X electrode) group and a second electrode (Y electrode) group extending in the horizontal direction (longitudinal direction), and a third electrode (address electrode) group extending in the vertical direction. Have X electrode groups and Y electrode groups are alternately arranged, and adjacent X electrodes and Y electrodes make a pair. The X electrode group is connected to the first drive circuit 31 and driven in common. The Y electrode group is connected to the second drive circuit 32, and a scan pulse is sequentially applied to each Y electrode, and is driven in common except when a scan pulse is applied. The address electrode group is connected to the third drive circuit 33, and the address pulse is applied independently in synchronization with the scan pulse. The first to third drive circuits 31 to 33 are controlled by a control circuit 34, and power is supplied to each circuit from a power supply circuit 35.

図２は、プラズマディスプレイパネル（ＰＤＰ）３０の分解斜視図である。図示のように、前面（第１）ガラス基板１の上には、横方向に伸びる第１（Ｘ）バス電極１２及び第２（Ｙ）バス電極１４が交互に平行に配置されている。Ｘ及びＹ光透過性電極（放電電極）１１及び１２が、Ｘ及びＹバス電極１２、１４に重なるように設けられ、更にＸ及びＹ放電電極１１及び１３の一部が、Ｘ及びＹバス電極１２、１４の両側に突出している。例えば、Ｘ及びＹバス電極１２、１４は金属層で形成され、放電電極１１、１３はＩＴＯ層膜などで形成され、Ｘ及びＹバス電極１２、１４の抵抗値は放電電極１１、１３の抵抗値よりも低いか又は同等である。以下、Ｘ及びＹ放電電極１１及び１３のＸ及びＹバス電極１２、１４の両側に突出した部分を、単にＸ及びＹ放電電極１１及び１３と称する。   FIG. 2 is an exploded perspective view of the plasma display panel (PDP) 30. As shown in the drawing, on the front (first) glass substrate 1, first (X) bus electrodes 12 and second (Y) bus electrodes 14 extending in the lateral direction are alternately arranged in parallel. X and Y light transmissive electrodes (discharge electrodes) 11 and 12 are provided so as to overlap with the X and Y bus electrodes 12 and 14, and a part of the X and Y discharge electrodes 11 and 13 are provided as X and Y bus electrodes. It protrudes on both sides of 12 and 14. For example, the X and Y bus electrodes 12 and 14 are formed of a metal layer, the discharge electrodes 11 and 13 are formed of an ITO layer film, and the resistance value of the X and Y bus electrodes 12 and 14 is the resistance of the discharge electrodes 11 and 13. Lower than or equal to the value. Hereinafter, the portions of the X and Y discharge electrodes 11 and 13 that protrude on both sides of the X and Y bus electrodes 12 and 14 are simply referred to as X and Y discharge electrodes 11 and 13.

放電電極１１、１３及びバス電極１２、１４の上には、これらの電極を覆うように誘電体層１５が形成されている。この誘電体層１５は、例えば、可視光を透過するＳｉＯ2などで構成され、気相成膜法で形成される。なお、誘電体層１５の形成法としては、気相成膜法のうちのＣＶＤ法、特にプラズマＣＶＤ法が適しており、誘電体層１５の厚さは、約１０μｍ以下にすることが可能である。従来の気相成膜法を使用しないで形成された誘電体層の厚さは一般に３０μｍ前後である。そのため、誘電体表面に形成される電界形状は誘電体層の厚さの影響でかならずしも電極形状に対応した形状にならないことが電界シミュレーションから明らかになってきた。言い換えれば、誘電体層が厚いと誘電体層上の正確な電界制御が難しかった。これに対して、気相成膜法を使用した誘電体層は薄くできるので、誘電体層上の正確な電界制御が可能である。 A dielectric layer 15 is formed on the discharge electrodes 11 and 13 and the bus electrodes 12 and 14 so as to cover these electrodes. The dielectric layer 15 is made of, for example, SiO 2 that transmits visible light, and is formed by a vapor deposition method. As a method for forming the dielectric layer 15, a CVD method, particularly a plasma CVD method, among vapor phase film forming methods is suitable, and the thickness of the dielectric layer 15 can be about 10 μm or less. is there. The thickness of the dielectric layer formed without using the conventional vapor deposition method is generally around 30 μm. For this reason, it has become clear from electric field simulation that the shape of the electric field formed on the dielectric surface does not necessarily correspond to the shape of the electrode due to the influence of the thickness of the dielectric layer. In other words, when the dielectric layer is thick, accurate electric field control on the dielectric layer is difficult. On the other hand, since the dielectric layer using the vapor deposition method can be made thin, accurate electric field control on the dielectric layer is possible.

誘電体層１５の上に、ＭｇＯなどの保護層１９が形成される。この保護層１９は、イオン衝撃により電子を放出して放電を成長させ、放電電圧の低減、放電遅れの低減などの効果を有する。この構造では、電極がこの保護層１９に覆われているため、どちらの電極群が陰極になっても保護層の効果を利用した放電が可能となる。気相成膜法により形成された誘電体層１５は、可視光をよく透過するので、前面基板とすることができる。   A protective layer 19 such as MgO is formed on the dielectric layer 15. This protective layer 19 emits electrons by ion bombardment to grow a discharge, and has effects such as a reduction in discharge voltage and a reduction in discharge delay. In this structure, since the electrode is covered with the protective layer 19, discharge utilizing the effect of the protective layer is possible regardless of which electrode group becomes the cathode. Since the dielectric layer 15 formed by the vapor deposition method transmits visible light well, it can be used as a front substrate.

一方、背面（第２）基板２の上には、Ｘ及びＹバス電極１２、１４と交差するように第３（アドレス）電極群２７が設けられ、更にアドレス電極群２７を覆うように誘電体層２８が設けられ、更にその上に縦方向隔壁２０が形成されている。そして、隔壁２０と誘電体層２８で形成される溝の側面と底面には、放電時に発生する紫外線で励起され、赤色、緑色及び青色の可視光を発生する蛍光体層２１、２２、２３が塗布されている。   On the other hand, a third (address) electrode group 27 is provided on the back (second) substrate 2 so as to intersect the X and Y bus electrodes 12, 14, and further a dielectric so as to cover the address electrode group 27. A layer 28 is provided, and a vertical partition 20 is formed thereon. On the side and bottom surfaces of the groove formed by the partition wall 20 and the dielectric layer 28, phosphor layers 21, 22, and 23 that are excited by ultraviolet rays generated during discharge and generate visible light of red, green, and blue are provided. It has been applied.

赤色、緑色及び青色の蛍光体は、それぞれ塗り特性が異なるため、同じように塗っても蛍光体層の厚さなどの断面形状が色毎に異なる。そのため、各セルの電圧特性も、色毎に異なる。現在一般に用いられている赤色、緑色及び青色の蛍光体を塗布した場合の放電開始電圧は、緑色＞青色＞赤色の順で高い。   Since the red, green, and blue phosphors have different coating characteristics, the cross-sectional shape such as the thickness of the phosphor layer is different for each color even if they are applied in the same manner. Therefore, the voltage characteristics of each cell are also different for each color. The discharge starting voltage when applying red, green and blue phosphors that are generally used at present is high in the order of green> blue> red.

上記のような前面基板１と背面基板２を貼り合せた後、セル内にネオン（Ｎｅ）、キセノン（Ｘｅ）などからなる放電ガスを封入する。ガス圧力は、５．３×１０4〜６．６７×１０4Ｐａである。 After the front substrate 1 and the rear substrate 2 are bonded together, a discharge gas composed of neon (Ne), xenon (Xe), or the like is sealed in the cell. The gas pressure is 5.3 × 10 4 to 6.67 × 10 4 Pa.

図３は、第１実施例のＰＤＰの電極形状を示す部分平面図であり、赤色（Ｒ）、緑色（Ｇ）及び青色（Ｂ）の３色のセルを、パネルに垂直な方向から見た図である。図示のように、平行に配置されたＸバス電極１２とＹバス電極１４から、対向する電極に向けて光透過性のＸ放電電極１１Ｒ、１１Ｇ、１１Ｂ及びＹ放電電極１３Ｒ、１３Ｇ、１３Ｂがそれぞれ突出している。   FIG. 3 is a partial plan view showing the electrode shape of the PDP of the first embodiment, in which cells of three colors of red (R), green (G) and blue (B) are viewed from a direction perpendicular to the panel. FIG. As shown in the drawing, light transmitting X discharge electrodes 11R, 11G, and 11B and Y discharge electrodes 13R, 13G, and 13B are directed from the X bus electrode 12 and the Y bus electrode 14 that are arranged in parallel to the opposing electrodes, respectively. It protrudes.

Ｘバス電極１２とＹバス電極１４に対して直交し、Ｘ放電電極１１Ｒ、１１Ｇ、１１Ｂ及びＹ放電電極１３Ｒ、１３Ｇ、１３Ｂと重なる位置にアドレス電極２７が配置され、アドレス電極２７の間に隔壁２０が配置されている。Ｘバス電極１２とＹバス電極１４の対と隔壁２０で規定される部分がセルである。   An address electrode 27 is disposed at a position that is orthogonal to the X bus electrode 12 and the Y bus electrode 14 and overlaps the X discharge electrodes 11R, 11G, and 11B and the Y discharge electrodes 13R, 13G, and 13B. 20 is arranged. A portion defined by the pair of the X bus electrode 12 and the Y bus electrode 14 and the partition wall 20 is a cell.

図示のように、Ｘ放電電極１１Ｒ、１１Ｇ、１１Ｂ及びＹ放電電極１３Ｒ、１３Ｇ、１３Ｂは、対向するエッジが所定の角度をなす直線で形成され、その間隔が徐々に変化するように形成されている。言い換えれば、エッジ間の距離が複数の値を持つ。この実施例では、Ｘ放電電極１１とＹ放電電極１３の対向するエッジは、一端ではすべてのセルで間隔ｄ１であり、他端では、赤色セルで間隔ｄ２ｒであり、緑色セルで間隔ｄ２ｇであり、青色セルで間隔ｄ２ｂである。ここで、ｄ２ｒ＞ｄ２ｂ＞ｄ２ｇである。   As shown in the figure, the X discharge electrodes 11R, 11G, and 11B and the Y discharge electrodes 13R, 13G, and 13B are formed so that the edges facing each other form a straight line, and the intervals thereof are gradually changed. Yes. In other words, the distance between the edges has a plurality of values. In this embodiment, the opposing edges of the X discharge electrode 11 and the Y discharge electrode 13 are spaced d1 in all cells at one end, spaced d2r in red cells and spaced d2g in green cells at the other end. , The distance between the blue cells is d2b. Here, d2r> d2b> d2g.

ここで、図４を利用して、本発明の放電動作を説明する。図４の横軸は放電を行う２電極間の距離ｄと放電空間の放電ガス圧力ｐの積ｐｄ、縦軸はその際の放電開始電圧であり、パッシェンカーブと呼ばれる。放電ガスは、ネオン（Ｎｅ）、キセノン（Ｘｅ）、ヘリウム（Ｈｅ）などの混合ガスである。放電ガスの組成（混合比）が一定の場合、電極間距離ｄ又は放電ガス圧力ｐが変化すると、その積ｐｄに対して放電開始電圧が変化し、図４に示すように、下に凸で、最小の放電開始電圧が存在する。この放電開始電圧が最小になる点を一般にパッシェンミニマムと呼ぶ。放電ガスの混合比は、例えばＸｅの分圧が高くなった場合、放電開始電圧は高くなる傾向にあるが、パッシェンミニマムにおける放電開始電圧の変化は小さい。   Here, the discharge operation of the present invention will be described with reference to FIG. The horizontal axis in FIG. 4 is the product pd of the distance d between the two electrodes for discharge and the discharge gas pressure p in the discharge space, and the vertical axis is the discharge start voltage at that time, which is called a Paschen curve. The discharge gas is a mixed gas such as neon (Ne), xenon (Xe), and helium (He). When the composition (mixing ratio) of the discharge gas is constant, when the interelectrode distance d or the discharge gas pressure p changes, the discharge start voltage changes with respect to the product pd, and as shown in FIG. There is a minimum discharge start voltage. The point at which this discharge start voltage is minimized is generally called the Paschen minimum. As for the mixing ratio of the discharge gas, for example, when the partial pressure of Xe increases, the discharge start voltage tends to increase, but the change of the discharge start voltage in the Paschen minimum is small.

一般に、電極間距離を１００μｍに設定した場合、パッシェンミニマムになるガス圧力はおおよそ１．３×１０4〜２．７×１０4Ｐａの間である。従って、ガス圧力が６．７×１０4Ｐａ以下では、パッシェンミニマム距離は２０〜３０μｍであり、それ以上の距離であれば、図においてパッシェンミニマムの右側に位置することになる。第１実施例では、３色のセルのＸ放電電極１１ＧとＹ放電電極１３Ｇの一方の間隔（最小間隔）ｄ１は、ｐｄ積がパッシェンミニマムの若干右側に位置するように設定され、緑色のセルの他方の間隔ｄ２ｇ、青色のセルの他方の間隔ｄ２ｂ及び赤色のセルの他方の間隔ｄ２ｒは、ｐｄ積が図示の位置になるように設定される。これにより、緑色セルでは、対向するエッジの間隔の範囲が、他の色に比べてパッシェンミニマム近い側に位置するため、放電確率が高くなり、より放電しやすくなる。同様に、青色セルでは、赤色セルに比べて放電確率が高くなる。 Generally, when the distance between the electrodes is set to 100 μm, the gas pressure at which the Paschen minimum is reached is approximately between 1.3 × 10 4 and 2.7 × 10 4 Pa. Therefore, when the gas pressure is 6.7 × 10 4 Pa or less, the Paschen minimum distance is 20 to 30 μm, and when it is more than that, it is located on the right side of the Paschen minimum in the drawing. In the first embodiment, one interval (minimum interval) d1 between the X discharge electrode 11G and the Y discharge electrode 13G of the three color cells is set so that the pd product is located slightly to the right of the Paschen minimum, and the green cell The other distance d2g, the other distance d2b of the blue cells, and the other distance d2r of the red cells are set so that the pd product is at the position shown in the figure. Thereby, in the green cell, since the range of the interval between the opposing edges is located closer to the Paschen minimum than the other colors, the discharge probability is increased and the discharge becomes easier. Similarly, the discharge probability is higher in the blue cell than in the red cell.

前述のように、赤色、緑色及び青色のセルは、蛍光体の塗り特性の関係で、放電開始電圧が緑色＞青色＞赤色の順で高くなるので、上記のように電極形状により放電確率を緑色＞青色＞赤色の順で放電しやすくすると、これらの特性が互いに相殺して、色毎の放電特性の差が低減される。   As described above, the red, green, and blue cells have a discharge start voltage that increases in the order of green> blue> red due to the phosphor coating characteristics. If the discharge is facilitated in the order of> blue> red, these characteristics cancel each other, and the difference in discharge characteristics for each color is reduced.

ＰＤＰの各セルは、点灯・非点灯のみが選択できるだけであり、点灯輝度を変化させる、すなわち階調を表示することができない。そこで、１フレームを所定の重み付けをした複数のサブフィールドに分割し、各セル毎に１フレームで点灯するサブフィールドを組み合わせることにより階調表示を行う。各サブフィールドは、通常同じ駆動シーケンスを有する。   In each cell of the PDP, only lighting / non-lighting can be selected, and the lighting luminance cannot be changed, that is, the gradation cannot be displayed. Therefore, gradation display is performed by dividing one frame into a plurality of subfields with predetermined weights and combining subfields that light up in one frame for each cell. Each subfield usually has the same drive sequence.

図５は、本実施例のＰＤＰ装置の１サブフィールドの駆動波形を示す図であり、Ｘ電極、Ｙ電極、及びアドレス電極に印加する駆動波形を示す。   FIG. 5 is a diagram showing a driving waveform of one subfield of the PDP device of this embodiment, and shows driving waveforms applied to the X electrode, the Y electrode, and the address electrode.

リセット期間には、Ｙ電極に印加されるリセット鈍波５１とＸ電極に印加されるリセットパルス４１により、Ｘ放電電極１１とＹ放電電極１３の間に電位差を生じ、全セルで放電が発生する。ここで印加されるのは、電圧が徐々に変化するリセット鈍波５１であるため、微弱な放電と電荷形成を繰返し、全セル一様に壁電荷を形成する。形成された壁電荷の極性は、Ｘ放電電極近傍が正極性、Ｙ放電電極近傍が負極性であり、アドレス放電電極近傍にも正極性の電荷が形成される。   During the reset period, a reset blunt wave 51 applied to the Y electrode and a reset pulse 41 applied to the X electrode cause a potential difference between the X discharge electrode 11 and the Y discharge electrode 13 and discharge occurs in all cells. . What is applied here is a reset blunt wave 51 in which the voltage gradually changes, so that weak discharge and charge formation are repeated to form wall charges uniformly in all cells. The polarity of the formed wall charges is positive in the vicinity of the X discharge electrode, negative in the vicinity of the Y discharge electrode, and positive charge is also formed in the vicinity of the address discharge electrode.

次に、Ｙ電極に印加される補償鈍波５２とＸ電極に印加される補償電圧４２により、リセットにより形成された壁電荷とは逆極性の電圧が鈍波で印加されるため、微弱な放電により、セル内の壁電荷が減少する。   Next, the compensation blunt wave 52 applied to the Y electrode and the compensation voltage 42 applied to the X electrode cause a voltage having a polarity opposite to the wall charge formed by the reset to be applied by the blunt wave, so that the weak discharge As a result, the wall charge in the cell is reduced.

次のアドレス期間では、Ｘ電極に電圧６９を印加した状態で、Ｙ電極に印加位置を順次変えながらスキャンパルス７０を印加する。スキャンパルス７０は、すべてのＹ電極に負電圧を印加した状態で、更に絶対値の大きな負極性のパルスを印加位置を順次変えながら印加されるパルスである。このスキャンパルス７０の印加と同期して、アドレス放電電極にはアドレスパルスが印加される。アドレスパルス６１は、スキャンパルスの印加されたＹ電極との交点に対応するセルを点灯する場合には印加され、点灯させない場合には印加されない。この時、リセット期間に形成された壁電荷の極性とＹ及びアドレスの各電極に印加されるパルスの極性は一致しており、この壁電荷により印加電圧を低くできる。これにより、スキャンパルス７０及びアドレスパルス６１が同時に印加されたセルではアドレス放電が発生する。この放電で、Ｘ放電電極近傍には負極性の壁電荷、Ｙ放電電極の近傍には正極性の壁電荷が形成される。言い換えれば、Ｘ電極とＹ電極の間の表示ラインでの点灯セルの選択が行われる。このように、アドレス放電により形成される電荷の極性は、前述のリセット放電の際に形成された電荷とは逆極性である。   In the next address period, with the voltage 69 applied to the X electrode, the scan pulse 70 is applied to the Y electrode while sequentially changing the application position. The scan pulse 70 is a pulse that is applied while negative voltages are applied to all the Y electrodes while the application position of the negative pulse having a larger absolute value is sequentially changed. In synchronization with the application of the scan pulse 70, an address pulse is applied to the address discharge electrode. The address pulse 61 is applied when the cell corresponding to the intersection with the Y electrode to which the scan pulse is applied is lit, and is not applied when the cell is not lit. At this time, the polarity of the wall charges formed during the reset period and the polarity of the pulses applied to the Y and address electrodes are the same, and the applied voltage can be lowered by the wall charges. As a result, an address discharge is generated in the cell to which the scan pulse 70 and the address pulse 61 are simultaneously applied. This discharge forms negative wall charges near the X discharge electrode and positive wall charges near the Y discharge electrode. In other words, a lighted cell is selected on the display line between the X electrode and the Y electrode. Thus, the polarity of the charge formed by the address discharge is opposite to the charge formed at the time of the above-described reset discharge.

維持放電期間の最初には、Ｘ電極に負極性の維持放電パルス４５を、Ｙ電極に正極性の維持放電パルス５６を印加する。アドレス放電が行われたセルでは、Ｘ放電電極近傍に負極性の壁電荷が、Ｙ放電電極近傍に正極性の壁電荷が形成されており、これらの壁電荷は、Ｘ電極に印加される維持パルス４５とＹ電極に印加される維持パルス５６による電位差を大きくするので、Ｘ電極とＹ電極の間で維持放電が発生する。一方、アドレス放電の行われなかったセルでは、壁電荷が形成されていないので、放電は発生しない。Ｘ電極とＹ電極の間で発生した維持放電により、壁電荷が反転し、Ｘ放電電極近傍に正極性の壁電荷が、Ｙ放電電極近傍に負極性の壁電荷が形成される。   At the beginning of the sustain discharge period, a negative sustain discharge pulse 45 is applied to the X electrode, and a positive sustain discharge pulse 56 is applied to the Y electrode. In the cell in which the address discharge is performed, a negative wall charge is formed in the vicinity of the X discharge electrode, and a positive wall charge is formed in the vicinity of the Y discharge electrode, and these wall charges are maintained being applied to the X electrode. Since the potential difference between the pulse 45 and the sustain pulse 56 applied to the Y electrode is increased, a sustain discharge is generated between the X electrode and the Y electrode. On the other hand, since no wall charges are formed in the cells that have not been subjected to the address discharge, no discharge occurs. Due to the sustain discharge generated between the X electrode and the Y electrode, the wall charges are inverted, and positive wall charges are formed near the X discharge electrodes, and negative wall charges are formed near the Y discharge electrodes.

次に、維持パルスは反転して、Ｘ電極に正極性の維持放電パルス４６を、Ｙ電極に負極性の維持放電パルス５７を印加する。最初の維持放電が発生したセルでは、Ｘ放電電極近傍に負極性の壁電荷が、Ｙ放電電極近傍に正極性の壁電荷が形成されているので、Ｘ電極に印加される維持パルス４６とＹ電極に印加される維持パルス５７による電位差を大きくするので、維持放電が発生する。これらの維持放電により、壁電荷の極性は逆転する。従って、極性を反転しながら維持パルスを繰返し印加することにより、維持放電が続く。   Next, the sustain pulse is inverted, and a positive sustain discharge pulse 46 is applied to the X electrode, and a negative sustain discharge pulse 57 is applied to the Y electrode. In the cell in which the first sustain discharge has occurred, negative wall charges are formed in the vicinity of the X discharge electrode, and positive wall charges are formed in the vicinity of the Y discharge electrode. Since the potential difference due to the sustain pulse 57 applied to the electrode is increased, a sustain discharge occurs. These sustain discharges reverse the polarity of the wall charges. Accordingly, the sustain discharge continues by repeatedly applying the sustain pulse while inverting the polarity.

維持放電パルスの回数は、サブフィールドの輝度の重み付けに応じて決められており、輝度の重み付けの大きなサブフィールドほど維持放電期間が長い。   The number of sustain discharge pulses is determined according to the luminance weight of the subfield, and the sustain discharge period is longer for the subfield having a higher luminance weight.

サブフィールドの最後には、消去パルス４７、５８により維持放電が行われた点灯セルで消去放電を発生させて、維持放電で形成された壁電荷を減少させる。この時、維持放電が発生しなかったセルでは壁電荷が少ないため、放電は発生しない。   At the end of the subfield, an erasing discharge is generated in the lit cell in which the sustaining discharge is performed by the erasing pulses 47 and 58, and the wall charge formed by the sustaining discharge is reduced. At this time, since no wall charge is present in the cells where no sustain discharge has occurred, no discharge occurs.

以上、第１実施例のＰＤＰ装置を説明したが、パネル構造、電極形状、駆動波形などには各種の変形例が可能である。ここでは、電極形状の変形例を説明する。   Although the PDP apparatus of the first embodiment has been described above, various modifications can be made to the panel structure, electrode shape, drive waveform, and the like. Here, a modified example of the electrode shape will be described.

例えば、第１実施例では、Ｘ放電電極とＹ放電電極の対向するエッジは所定の角度をなす直線で形成され、最小間隔はすべてのセルでｄ１であり、最大間隔は、赤色セルでｄ２ｒであり、緑色セルでｄ２ｇであり、青色セルでｄ２ｂであった。しかし、最小間隔ｄ１が色毎に異なるようにしてもよい。   For example, in the first embodiment, opposing edges of the X discharge electrode and the Y discharge electrode are formed by straight lines having a predetermined angle, the minimum interval is d1 in all cells, and the maximum interval is d2r in red cells. Yes, d2g in the green cell and d2b in the blue cell. However, the minimum interval d1 may be different for each color.

図６は、電極形状の変形例を示す図である。図６の変形例では、赤色と青色のセルにおいては、Ｘ放電電極とＹ放電電極の対向するエッジは所定の角度をなす直線で形成され、最小間隔がｄ１、最大間隔がｄ２である。これに対して、緑色のセルでは、Ｘ放電電極とＹ放電電極の対向するエッジは曲線で形成され、間隔は赤色及び青色のセルと同様に、ｄ１からｄ２まで変化する。これにより、緑色のセルでのＸ放電電極とＹ放電電極の対向するエッジの間隔の略平均値は、赤色と青色のセルでのＸ放電電極とＹ放電電極の対向するエッジの間隔の略平均値より小さくなる。従って、緑色のセルで放電確率が増加して、放電特性の差を小さくする。   FIG. 6 is a diagram showing a modification of the electrode shape. In the modification of FIG. 6, in the red and blue cells, the opposing edges of the X discharge electrode and the Y discharge electrode are formed by straight lines having a predetermined angle, and the minimum interval is d1 and the maximum interval is d2. On the other hand, in the green cell, the opposing edges of the X discharge electrode and the Y discharge electrode are formed by curves, and the interval changes from d1 to d2 as in the red and blue cells. Thereby, the approximate average value of the distance between the opposing edges of the X discharge electrode and the Y discharge electrode in the green cell is the approximate average of the distance between the opposing edges of the X discharge electrode and the Y discharge electrode in the red and blue cells. Smaller than the value. Accordingly, the discharge probability increases in the green cell, and the difference in discharge characteristics is reduced.

図７は、電極形状の他の変形例を示す図である。この変形例では、Ｘ放電電極とＹ放電電極の対向するエッジは階段状の形状を有し、間隔が段階的に変化する。そして、赤色セルでは間隔がｄ１からｄ２ｒまで変化し、緑色セルでは間隔がｄ１からｄ２ｇまで変化し、青色セルでは間隔がｄ１からｄ２ｂまで変化する。ここでは、ｄ２ｒ＞ｄ２ｂ＞ｄ２ｇである。   FIG. 7 is a diagram showing another modification of the electrode shape. In this modification, the opposing edges of the X discharge electrode and the Y discharge electrode have a stepped shape, and the interval changes stepwise. In the red cell, the interval changes from d1 to d2r, in the green cell, the interval changes from d1 to d2g, and in the blue cell, the interval changes from d1 to d2b. Here, d2r> d2b> d2g.

図８は、電極形状の他の変形例を示す図である。この変形例では、赤色と青色のセルにおいては、Ｘ放電電極とＹ放電電極の対向するエッジは階段状の形状を有し、間隔がｄ１からｄ２まで段階的に変化する。これに対して、緑色のセルでは、Ｘ放電電極とＹ放電電極の対向するエッジは曲線で形成され、間隔は赤色及び青色のセルと同様に、ｄ１からｄ２まで変化する。これにより、緑色のセルでのＸ放電電極とＹ放電電極の対向するエッジの間隔の略平均値は、赤色と青色のセルでのＸ放電電極とＹ放電電極の対向するエッジの間隔の略平均値より小さくなる。従って、緑色のセルで放電確率が増加して、放電特性の差を小さくする。   FIG. 8 is a diagram showing another modification of the electrode shape. In this modification, in the red and blue cells, the opposing edges of the X discharge electrode and the Y discharge electrode have a stepped shape, and the interval changes stepwise from d1 to d2. On the other hand, in the green cell, the opposing edges of the X discharge electrode and the Y discharge electrode are formed by curves, and the interval changes from d1 to d2 as in the red and blue cells. Thereby, the approximate average value of the distance between the opposing edges of the X discharge electrode and the Y discharge electrode in the green cell is the approximate average of the distance between the opposing edges of the X discharge electrode and the Y discharge electrode in the red and blue cells. Smaller than the value. Accordingly, the discharge probability increases in the green cell, and the difference in discharge characteristics is reduced.

蛍光体の塗り特性の差は、維持放電電圧だけでなく、アドレス放電をトリガとして発生するＸ放電電極とＹ放電電極間の放電特性にも影響し、アドレス放電の特性が色によって異なる。そこで、赤色、緑色及び青色のセル毎に、アドレス電極がＸ放電電極及びＹ放電電極と重なる位置を変化させれば、アドレス放電特性を調整してアドレス放電特性の差を低減できる。図９及び図１０は、このための電極形状の変形例を示す。   The difference in the coating characteristics of the phosphor affects not only the sustain discharge voltage but also the discharge characteristics between the X discharge electrode and the Y discharge electrode that are generated using the address discharge as a trigger, and the address discharge characteristics differ depending on the color. Therefore, if the position where the address electrode overlaps the X discharge electrode and the Y discharge electrode is changed for each of the red, green, and blue cells, the address discharge characteristics can be adjusted to reduce the difference in the address discharge characteristics. 9 and 10 show a modification of the electrode shape for this purpose.

図９の変形例では、Ｘ放電電極とＹ放電電極の対向するエッジは、図３に示した第１実施例と同じ電極形状を有し、緑色のセルではアドレス電極２７がＸ放電電極とＹ放電電極の対向するエッジの最小間隔の側に位置し、赤色のセルではアドレス電極２７がＸ放電電極とＹ放電電極の対向するエッジの最大間隔の側に位置し、青色のセルではアドレス電極２７がＸ放電電極とＹ放電電極の対向するエッジの中間に位置する。アドレス放電時には、アドレス電極２７とＹ放電電極１３Ｇの間でアドレス放電が発生すると、アドレス放電をトリガとしてＸ放電電極１１ＧとＹ放電電極１３Ｇとの間の放電が発生して壁電荷が形成される。緑色のセルでは、アドレス電極２７がエッジの最小間隔に近い側に位置しているため、アドレス放電をトリガとするＸ放電電極１１ＧとＹ放電電極１３Ｇとの間の放電が発生しやすい。これに対して、赤色のセルでは、アドレス電極２７がエッジの最大間隔に近い側に位置しているため、アドレス放電をトリガとするＸ放電電極１１ＧとＹ放電電極１３Ｇとの間の放電が、青色のセルに比べて発生しにくい。青色のセルではこの中間の状態になる。これにより、アドレス放電をトリガとしてＸ放電電極とＹ放電電極との間の放電を発生させる場合の放電特性の差を低減できる。   In the modification of FIG. 9, the opposing edges of the X discharge electrode and the Y discharge electrode have the same electrode shape as in the first embodiment shown in FIG. 3, and in the green cell, the address electrode 27 is the same as the X discharge electrode and the Y discharge electrode. In the red cell, the address electrode 27 is positioned on the side of the maximum interval between the opposing edges of the discharge electrodes, and in the blue cell, the address electrode 27 is positioned on the minimum interval side of the opposing edges of the discharge electrode. Is located in the middle of the opposing edges of the X and Y discharge electrodes. At the time of address discharge, when an address discharge is generated between the address electrode 27 and the Y discharge electrode 13G, a discharge is generated between the X discharge electrode 11G and the Y discharge electrode 13G using the address discharge as a trigger to form wall charges. . In the green cell, since the address electrode 27 is located on the side closer to the minimum interval between the edges, the discharge between the X discharge electrode 11G and the Y discharge electrode 13G triggered by the address discharge is likely to occur. On the other hand, in the red cell, since the address electrode 27 is located on the side close to the maximum interval between the edges, the discharge between the X discharge electrode 11G and the Y discharge electrode 13G triggered by the address discharge is Less likely to occur than blue cells. The blue cell is in an intermediate state. Thereby, the difference in the discharge characteristics when the discharge between the X discharge electrode and the Y discharge electrode is generated using the address discharge as a trigger can be reduced.

なお、アドレス放電の特性が色によって異なる影響のみを低減するのであれば、図１０に示すように、Ｘ放電電極とＹ放電電極の対向するエッジは、すべての色のセルで同じに形状にし、アドレス電極の位置のみを異ならせてもよい。   If only the influence that the characteristics of the address discharge are different depending on the color is reduced, as shown in FIG. 10, the opposing edges of the X discharge electrode and the Y discharge electrode have the same shape in the cells of all colors, Only the position of the address electrode may be different.

本発明の第２実施例のＰＤＰ装置は、特許文献５に記載されたＡＬＩＳ方式のＰＤＰ装置に本発明を適用した実施例である。第２実施例のＰＤＰ装置は、図１に示したのと類似の全体構成を有するが、Ｘ電極は奇数番目と偶数番目の２つのグループに分けられて、それぞれ共通に駆動される。また、Ｙ電極も奇数番目と偶数番目の２つのグループに分けられて、アドレス期間以外はそれぞれ共通に駆動される点が異なる。ＡＬＩＳ方式のＰＤＰ装置については、特許文献５に詳しく記載されているので、ここでは詳細な説明を省略し、本発明に関係する部分のみを説明する。   The PDP apparatus according to the second embodiment of the present invention is an embodiment in which the present invention is applied to an ALIS PDP apparatus described in Patent Document 5. The PDP apparatus of the second embodiment has an overall configuration similar to that shown in FIG. 1, but the X electrodes are divided into two groups, odd and even, and are driven in common. The Y electrodes are also divided into two groups, odd and even, and are differently driven in common except during the address period. Since the ALIS system PDP apparatus is described in detail in Patent Document 5, detailed description is omitted here, and only the part related to the present invention will be described.

図１１は、第２実施例のプラズマディスプレイ装置（ＰＤＰ装置）で使用するプラズマディスプレイパネル（ＰＤＰ）の分解斜視図である。プラズマディスプレイパネル（ＰＤＰ）３０の分解斜視図である。説明は省略する。   FIG. 11 is an exploded perspective view of a plasma display panel (PDP) used in the plasma display apparatus (PDP apparatus) of the second embodiment. 1 is an exploded perspective view of a plasma display panel (PDP) 30. FIG. Description is omitted.

図１２は、電極形状を示す部分平面図である。図示のように、Ｘバス電極１２及びＹバス電極１４が交互に平行に配置され、各バス電極の両側に光透過性のＸ放電電極１１ＡＲ、１１ＢＲ、１１ＡＧ、１１ＢＧ、１１ＡＢ、１１ＢＢ及びＹ放電電極１３ＡＲ、１３ＢＲ、１３ＡＧ、１３ＢＧ、１３ＡＢ、１３ＢＢがそれぞれ突出している。対向するように突出したＸ放電電極及びＹ放電電極は、第１実施例と同様に、対向するエッジが所定の角度をなす直線状であり、色毎に角度が異なる。電極形状や配置は第１実施例と同様であり、説明は省略する。   FIG. 12 is a partial plan view showing the electrode shape. As shown in the figure, X bus electrodes 12 and Y bus electrodes 14 are alternately arranged in parallel, and light transmissive X discharge electrodes 11AR, 11BR, 11AG, 11BG, 11AB, 11BB and Y discharge electrodes are arranged on both sides of each bus electrode. 13AR, 13BR, 13AG, 13BG, 13AB, and 13BB protrude. The X discharge electrode and the Y discharge electrode that protrude so as to face each other are linear with the edges facing each other forming a predetermined angle, as in the first embodiment, and the angles are different for each color. The electrode shape and arrangement are the same as in the first embodiment, and a description thereof will be omitted.

本実施例のＰＤＰ装置はＡＬＩＳ方式であり、Ｘ電極とＹ電極のすべての間に表示ラインが形成される。例えば、１番目のＸ電極と１番目のＹ電極の間に１番目の表示ラインが形成され、１番目のＹ電極と２番目のＸ電極の間に２番目の表示ラインが形成され、２番目のＸ電極と２番目のＹ電極の間に３番目の表示ラインが形成され、２番目のＹ電極と３番目のＸ電極の間に４番目の表示ラインが形成される。言い換えれば、奇数番目のＸ電極とＹ電極の間及び偶数番目のＸ電極とＹ電極の間に奇数番目の表示ラインが形成され、奇数番目のＹ電極と偶数番目のＸ電極の間及び偶数番目のＹ電極と奇数番目のＸ電極の間に偶数番目の表示ラインが形成される。１表示フィールドを奇数フィールドと偶数フィールドに分け、奇数フィールドでは、奇数番目の表示ラインを表示し、偶数フィールドでは偶数番目の表示ラインを表示する。奇数フィールドと偶数フィールドは、それぞれ複数のサブフィールドで構成される。   The PDP apparatus of this embodiment is an ALIS system, and a display line is formed between all of the X electrode and the Y electrode. For example, a first display line is formed between the first X electrode and the first Y electrode, and a second display line is formed between the first Y electrode and the second X electrode. A third display line is formed between the second X electrode and the second Y electrode, and a fourth display line is formed between the second Y electrode and the third X electrode. In other words, odd-numbered display lines are formed between odd-numbered X electrodes and Y electrodes and between even-numbered X electrodes and Y-electrodes, and between odd-numbered Y electrodes and even-numbered X electrodes and even-numbered. Even-numbered display lines are formed between the Y electrodes and the odd-numbered X electrodes. One display field is divided into an odd field and an even field, an odd display line is displayed in the odd field, and an even display line is displayed in the even field. Each of the odd field and the even field is composed of a plurality of subfields.

図１３と図１４は、本実施例のＰＤＰ装置の１サブフィールドの駆動波形を示す図であり、図１３は奇数フィールドの駆動波形を示し、図１４は偶数フィールドの駆動波形を示し、奇数番目のＸ電極（Ｘ１）、奇数番目のＹ電極（Ｙ１）、偶数番目のＸ電極（Ｘ２）、偶数番目のＹ電極（Ｙ２）、及びアドレス電極（Ａ）に印加する駆動波形を示す。まず、奇数フィールドについて説明する。   FIGS. 13 and 14 are diagrams showing the driving waveform of one subfield of the PDP apparatus of this embodiment. FIG. 13 shows the driving waveform of the odd field, FIG. 14 shows the driving waveform of the even field, and the odd number. Drive waveforms applied to the X electrode (X1), odd-numbered Y electrode (Y1), even-numbered X electrode (X2), even-numbered Y electrode (Y2), and address electrode (A). First, the odd field will be described.

リセット期間に印加される波形は、第１実施例と同じである。Ｘ１電極とＸ２には同じ波形が、Ｙ１電極とＹ２電極にも同じ波形が印加され、全セルが均一な状態になる。   The waveform applied during the reset period is the same as in the first embodiment. The same waveform is applied to the X1 electrode and X2, and the same waveform is applied to the Y1 electrode and Y2 electrode, so that all cells are in a uniform state.

アドレス期間は前半部と後半部に分かれる。前半部では、奇数番目のＸ電極Ｘ１に選択パルス４３を印加し、偶数番目のＸ電極Ｘ２及びＹ電極Ｙ２には０Ｖを印加した状態で、奇数番目のＹ電極Ｙ１に印加位置を順次変えながらスキャンパルス５３を印加する。スキャンパルス５３は、奇数番目のすべてのＹ電極Ｙ１に負電圧を印加した状態で、更に絶対値の大きな負極性のパルスを印加位置を順次変えながら印加されるパルスである。このスキャンパルス５３の印加と同期して、アドレス放電電極にはアドレスパルス６１が印加される。アドレスパルス６１は、スキャンパルスの印加されたＹ電極との交点に対応するセルを点灯する場合には印加され、点灯させない場合には印加されない。この時、リセット期間に形成された壁電荷の極性とＹ及びアドレスの各電極に印加されるパルスの極性は一致しており、この壁電荷により印加電圧を低くできる。これにより、選択パルス４３、スキャンパルス５３及びアドレスパルス６１が同時に印加されたセルではアドレス放電が発生する。この放電で、Ｘ放電電極近傍には負極性の壁電荷、Ｙ放電電極の近傍には正極性の壁電荷が形成される。言い換えれば、奇数番目のＸ電極Ｘ１と奇数番目のＹ電極Ｙ１の間の表示ラインでの点灯セルの選択が行われる。このように、アドレス放電により形成される電荷の極性は、前述のリセット放電の際に形成された電荷とは逆極性である。なお、選択パルス４３の印加されない偶数番目のＸ放電電極及びスキャンパルス５３の印加されない偶数番目のＹ放電電極近傍では、リセット期間終了時の壁電荷が維持される。   The address period is divided into a first half and a second half. In the first half, the selection pulse 43 is applied to the odd-numbered X electrode X1, and 0V is applied to the even-numbered X electrode X2 and Y electrode Y2, while sequentially changing the application position to the odd-numbered Y electrode Y1. A scan pulse 53 is applied. The scan pulse 53 is a pulse that is applied while sequentially changing the application position of a negative pulse having a larger absolute value in a state where a negative voltage is applied to all odd-numbered Y electrodes Y1. In synchronization with the application of the scan pulse 53, an address pulse 61 is applied to the address discharge electrode. The address pulse 61 is applied when the cell corresponding to the intersection with the Y electrode to which the scan pulse is applied is lit, and is not applied when the cell is not lit. At this time, the polarity of the wall charges formed during the reset period and the polarity of the pulses applied to the Y and address electrodes are the same, and the applied voltage can be lowered by the wall charges. As a result, an address discharge is generated in the cell to which the selection pulse 43, the scan pulse 53, and the address pulse 61 are simultaneously applied. This discharge forms negative wall charges near the X discharge electrode and positive wall charges near the Y discharge electrode. In other words, the lighting cell is selected on the display line between the odd-numbered X electrode X1 and the odd-numbered Y electrode Y1. Thus, the polarity of the charge formed by the address discharge is opposite to the charge formed at the time of the above-described reset discharge. Note that wall charges at the end of the reset period are maintained in the vicinity of the even-numbered X discharge electrodes to which the selection pulse 43 is not applied and the even-numbered Y discharge electrodes to which the scan pulse 53 is not applied.

アドレス期間の後半部では、偶数番目のＸ電極Ｘ２に選択パルス４４を印加し、奇数番目のＸ電極Ｘ１及びＹ電極Ｙ１には０Ｖを印加した状態で、偶数番目のＹ電極Ｙ２に印加位置を順次変えながらスキャンパルス５４を印加し、アドレスパルス６１をアドレス電極に印加する。これにより、上記と同様に、偶数番目のＸ電極Ｘ２と偶数番目のＹ電極Ｙ２の間の表示ラインでの点灯セルの選択が行われる。従って、アドレス期間の前半部と後半部で、奇数番目の表示ラインの点灯セルでアドレス放電が発生し、点灯セルの選択が行われたことになる。   In the second half of the address period, the selection pulse 44 is applied to the even-numbered X electrode X2, and 0 V is applied to the odd-numbered X electrode X1 and Y electrode Y1, and the application position is set to the even-numbered Y electrode Y2. The scan pulse 54 is applied while sequentially changing, and the address pulse 61 is applied to the address electrode. Thereby, similarly to the above, the lighting cell is selected on the display line between the even-numbered X electrode X2 and the even-numbered Y electrode Y2. Accordingly, in the first half and the second half of the address period, address discharge occurs in the lighted cells of the odd-numbered display lines, and the lighted cells are selected.

維持放電期間では、奇数番目のＸ電極Ｘ１と偶数番目のＹ電極Ｙ２に同相の維持放電パルス４５、４６、５９、６０を、偶数番目のＸ電極Ｘ２と奇数番目のＹ電極Ｙ１に同相の維持放電パルス４８、４９、５６、５７を印加する。奇数番目のＸ電極Ｘ１と偶数番目のＹ電極Ｙ２に印加される維持パルス４５、４６、５９、６０は、偶数番目のＸ電極Ｘ２と奇数番目のＹ電極Ｙ１に印加される維持パルス４８、４９、５６、５７と逆相である。従って、奇数番目のＸ電極Ｘ１と奇数番目のＹ電極Ｙ１の間、及び偶数番目のＸ電極Ｘ２と偶数番目のＹ電極Ｙ２の間には、維持パルスによる大きな絶対値の電圧が印加され、奇数番目のＹ電極Ｙ１と偶数番目のＸ電極Ｘ２の間、及び偶数番目のＹ電極Ｙ２と奇数番目のＸ電極Ｘ１との間には、維持パルスによる電圧は印加されない。言い換えれば、奇数表示ラインには維持パルス電圧が印加され、偶数表示ラインには維持パルス電圧は印加されない。   In the sustain discharge period, in-phase sustain discharge pulses 45, 46, 59, 60 are applied to the odd-numbered X electrodes X1 and even-numbered Y electrodes Y2, and in-phase are maintained to the even-numbered X electrodes X2 and odd-numbered Y electrodes Y1. Discharge pulses 48, 49, 56 and 57 are applied. The sustain pulses 45, 46, 59, 60 applied to the odd-numbered X electrode X1 and the even-numbered Y electrode Y2 are the sustain pulses 48, 49 applied to the even-numbered X electrode X2 and the odd-numbered Y electrode Y1. , 56 and 57 are in reverse phase. Therefore, a large absolute voltage is applied between the odd-numbered X electrode X1 and the odd-numbered Y electrode Y1 and between the even-numbered X electrode X2 and the even-numbered Y electrode Y2 by the sustain pulse. A voltage due to the sustain pulse is not applied between the even-numbered Y electrode Y1 and the even-numbered X electrode X2 and between the even-numbered Y electrode Y2 and the odd-numbered X electrode X1. In other words, the sustain pulse voltage is applied to the odd display lines, and the sustain pulse voltage is not applied to the even display lines.

維持放電期間の最初には、奇数番目のＸ電極Ｘ１と偶数番目のＹ電極Ｙ２に負極性の維持放電パルス４５、５９を、偶数番目のＸ電極Ｘ２と奇数番目のＹ電極Ｙ１に正極性の維持放電パルス４８、５６を印加する。アドレス放電が行われたセルでは、Ｘ放電電極近傍に負極性の壁電荷が、Ｙ放電電極近傍に正極性の壁電荷が形成されており、これらの壁電荷は、奇数番目のＸ電極Ｘ１に印加される維持パルス４５と奇数番目のＹ電極Ｙ１に印加される維持パルス５６による電位差を大きくするので、奇数番目のＸ電極Ｘ１と奇数番目のＹ電極Ｙ１の間で維持放電が発生する。偶数番目のＸ電極Ｘ２と偶数番目のＹ電極Ｙ２の間では、壁電荷による電圧の逆性が逆のため放電は発生しない。奇数番目のＸ電極Ｘ１と奇数番目のＹ電極Ｙ１の間で発生した維持放電により、壁電荷が反転し、奇数番目のＸ放電電極Ｘ１近傍に正極性の壁電荷が、奇数番目のＹ放電電極Ｙ１近傍に負極性の壁電荷が形成される。   At the beginning of the sustain discharge period, negative sustain discharge pulses 45 and 59 are applied to the odd-numbered X electrode X1 and even-numbered Y electrode Y2, and positive-polarity is applied to the even-numbered X electrode X2 and odd-numbered Y electrode Y1. Sustain discharge pulses 48 and 56 are applied. In the cell in which the address discharge is performed, a negative wall charge is formed in the vicinity of the X discharge electrode, and a positive wall charge is formed in the vicinity of the Y discharge electrode. These wall charges are applied to the odd-numbered X electrode X1. Since the potential difference between the applied sustain pulse 45 and the sustain pulse 56 applied to the odd-numbered Y electrode Y1 is increased, a sustain discharge is generated between the odd-numbered X electrode X1 and the odd-numbered Y electrode Y1. No discharge occurs between the even-numbered X electrode X2 and the even-numbered Y electrode Y2 because the voltage reversal due to wall charges is reversed. Due to the sustain discharge generated between the odd-numbered X electrodes X1 and the odd-numbered Y electrodes Y1, the wall charges are inverted, and positive wall charges are generated near the odd-numbered X discharge electrodes X1. Negative wall charges are formed in the vicinity of Y1.

次に、維持パルスは反転して、奇数番目のＸ電極Ｘ１と偶数番目のＹ電極Ｙ２に正極性の維持放電パルス４６、６０を、偶数番目のＸ電極Ｘ２と奇数番目のＹ電極Ｙ１に負極性の維持放電パルス４９、５７を印加する。偶数番目のＸ電極Ｘ２と偶数番目のＹ電極Ｙ２の間でアドレス放電が行われたセルでは、最初の維持放電は発生しないので、アドレス期間終了時の壁電荷が維持されており、この壁電荷は、偶数番目のＸ電極Ｘ２に印加される維持パルス４９と偶数番目のＹ電極Ｙ２に印加される維持パルス６０による電位差を大きくするので、偶数番目のＸ電極Ｘ２と偶数番目のＹ電極Ｙ２の間で維持放電が発生する。更に、奇数番目のＸ電極Ｘ１と奇数番目のＹ電極Ｙ１の間で維持放電が発生したセルでは、奇数番目のＸ放電電極Ｘ１近傍に負極性の壁電荷が、奇数番目のＹ放電電極Ｙ１近傍に正極性の壁電荷が形成されているので、奇数番目のＸ電極Ｘ１に印加される維持パルス４６と奇数番目のＹ電極Ｙ１に印加される維持パルス５７による電位差を大きくするので、奇数番目のＸ電極Ｘ１と奇数番目のＹ電極Ｙ１の間で維持放電が発生する。これらの維持放電により、壁電荷の極性は逆転する。従って、極性を反転しながら維持パルスを繰返し印加することにより、維持放電が続く。   Next, the sustain pulse is inverted, positive sustain discharge pulses 46 and 60 are applied to the odd-numbered X electrodes X1 and even-numbered Y electrodes Y2, and negative electrodes are applied to the even-numbered X electrodes X2 and odd-numbered Y electrodes Y1. Sustaining discharge pulses 49 and 57 are applied. In the cell in which the address discharge is performed between the even-numbered X electrode X2 and the even-numbered Y electrode Y2, the first sustain discharge does not occur. Therefore, the wall charge at the end of the address period is maintained. Increases the potential difference between the sustain pulse 49 applied to the even-numbered X electrode X2 and the sustain pulse 60 applied to the even-numbered Y electrode Y2, so that the even-numbered X electrode X2 and the even-numbered Y electrode Y2 Sustain discharge occurs between them. Further, in the cell in which the sustain discharge is generated between the odd-numbered X electrode X1 and the odd-numbered Y electrode Y1, negative wall charges are present in the vicinity of the odd-numbered X discharge electrode X1, and in the vicinity of the odd-numbered Y discharge electrode Y1. Since a positive wall charge is formed on the second electrode, the potential difference between the sustain pulse 46 applied to the odd-numbered X electrode X1 and the sustain pulse 57 applied to the odd-numbered Y electrode Y1 is increased. A sustain discharge occurs between the X electrode X1 and the odd-numbered Y electrode Y1. These sustain discharges reverse the polarity of the wall charges. Accordingly, the sustain discharge continues by repeatedly applying the sustain pulse while inverting the polarity.

維持放電パルスの回数は、サブフィールドの輝度の重み付けに応じて決められており、輝度の重み付けの大きなサブフィールドほど維持放電期間が長い。   The number of sustain discharge pulses is determined according to the luminance weight of the subfield, and the sustain discharge period is longer for the subfield having a higher luminance weight.

サブフィールドの最後には、消去パルス４７、５８により維持放電が行われた点灯セルで消去放電を発生させて、維持放電で形成された壁電荷を減少させる。この時、維持放電が発生しなかったセルでは壁電荷が少ないため、放電は発生しない。   At the end of the subfield, an erasing discharge is generated in the lit cell in which the sustaining discharge is performed by the erasing pulses 47 and 58, and the wall charge formed by the sustaining discharge is reduced. At this time, since no wall charge is present in the cells where no sustain discharge has occurred, no discharge occurs.

以上、奇数フィールドの各サブフィールドにおける駆動波形と動作を説明した。上記のように、奇数フィールドでは、奇数番目の表示ラインが点灯して表示が行われる。   The drive waveforms and operations in each subfield of the odd field have been described above. As described above, in the odd field, the odd-numbered display lines are turned on for display.

偶数フィールドでは、図１４に示すように、リセット期間には、奇数フィールドと同じパルスが各電極に印加される。アドレス期間の前半部では、偶数Ｘ電極Ｘ２に選択パルス４３を印加し、奇数Ｘ電極Ｘ１と偶数Ｙ電極Ｙ２に０Ｖを印加した状態で、奇数番目のＹ電極Ｙ１に印加位置を順次変えながらスキャンパルス５３を印加する。また、アドレス期間の後半部では、奇数Ｘ電極Ｘ１に選択パルス４３を印加し、偶数Ｘ電極Ｘ２と奇数Ｙ電極Ｙ１に０Ｖを印加した状態で、偶数番目のＹ電極Ｙ２に印加位置を順次変えながらスキャンパルス５４を印加する。これにより、奇数番目のＹ電極Ｙ１と偶数番目のＸ電極Ｘ２の間及び偶数番目のＹ電極Ｙ２と奇数番目のＸ電極Ｘ１の間の表示ライン、すなわち偶数番目の表示ラインの点灯セルでアドレス放電が発生し、点灯セルの選択が行われる。   In the even field, as shown in FIG. 14, the same pulse as that in the odd field is applied to each electrode in the reset period. In the first half of the address period, the selection pulse 43 is applied to the even-numbered X electrode X2 and 0V is applied to the odd-numbered X electrode X1 and the even-numbered Y electrode Y2. A pulse 53 is applied. In the second half of the address period, the selection pulse 43 is applied to the odd-numbered X electrodes X1 and 0V is applied to the even-numbered X electrodes X2 and the odd-numbered Y electrodes Y1, and the application position is sequentially changed to the even-numbered Y electrodes Y2. The scan pulse 54 is applied. As a result, the address discharge occurs in the display line between the odd-numbered Y electrode Y1 and the even-numbered X electrode X2 and between the even-numbered Y electrode Y2 and the odd-numbered X electrode X1, that is, the lighting cells of the even-numbered display line. Occurs, and a lighted cell is selected.

維持放電期間には、奇数番目のＸ電極Ｘ１と奇数番目のＹ電極Ｙ１に同相の維持放電パルス６５、６６、５６、５７を、偶数番目のＸ電極Ｘ２と偶数番目のＹ電極Ｙ２に同相の維持放電パルス６７、６８、５９、６０を印加する。維持放電パルス６５、６６、５６、５７は、維持放電パルス６７、６８、５９、６０と逆相である。従って、奇数番目のＹ電極Ｙ１と偶数番目のＸ電極Ｘ２の間、及び偶数番目のＹ電極Ｙ２と奇数番目のＸ電極Ｘ１の間には、維持パルスによる大きな絶対値の電圧が印加される。これにより、偶数番目の表示ラインで維持放電が発生する。   In the sustain discharge period, in-phase sustain discharge pulses 65, 66, 56, 57 are applied to the odd-numbered X electrode X1 and the odd-numbered Y electrode Y1, and in-phase to the even-numbered X electrode X2 and even-numbered Y electrode Y2. Sustain discharge pulses 67, 68, 59, 60 are applied. Sustain discharge pulses 65, 66, 56, 57 are in reverse phase to sustain discharge pulses 67, 68, 59, 60. Accordingly, a large absolute voltage is applied between the odd-numbered Y electrode Y1 and the even-numbered X electrode X2 and between the even-numbered Y electrode Y2 and the odd-numbered X electrode X1. As a result, sustain discharge occurs in even-numbered display lines.

以上本発明の第２実施例のＰＤＰ装置について説明したが、第１実施例のＰＤＰにも第１実施例で説明したのと同様の変形例を適用することが可能である。
（付記１）
第１の基板と、前記第１の基板に対向するように配置され、前記第１の基板との間に放電ガスが封入された放電空間を形成する第２の基板とを備え、
前記第１の基板は、交互に略平行に配置され、維持放電を行う複数の第１電極及び第２電極と、前記複数の第１電極及び第２電極を覆う誘電体層とを備え、
前記第２の基板は、前記複数の第１電極及び第２電極の伸びる方向に対して略垂直な方向に配置された複数の第３電極と、前記複数の第３電極の間に設けられた複数の隔壁と、各第３電極に対応させて両側の隔壁で区切られる部分に順に設けられた赤色、緑色及び青色の各色を発光する蛍光体層とを備え、
維持放電を行う前記第１電極及び第２電極と前記隔壁によりセルが規定されるプラズマディスプレイパネルであって、
前記複数の第１電極及び第２電極は、放電を行うため対向して設けられ、前記第１及び第２の基板に垂直な方向から見た時に、各セル内で対向する間隔が変化するエッジを備え、
少なくとも１つの色のセルにおける前記第１及び第２電極の対向する前記エッジの間隔の変化が、他の色の前記エッジの間隔の変化と異なることを特徴とするプラズマディスプレイパネル。（１）
（付記２）
前記複数の第１電極は、略平行に設けられた複数の第１バス電極と、各第１バス電極からセル毎に突き出た複数の第１放電電極とを備え、
前記複数の第２電極は、略平行に設けられた複数の第２バス電極と、各第２バス電極からセル毎に突き出た複数の第２放電電極とを備え、
前記複数の第１放電電極及び第２放電電極は、放電を行うため対向して設けられ、前記第１及び第２の基板に垂直な方向から見た時に、各セル内で対向する間隔が変化するエッジを備え、
少なくとも１つの色のセルにおける前記第１及び第２放電電極の対向する前記エッジの間隔の変化が、他の色の前記エッジの間隔の変化と異なる請求項１に記載のプラズマディスプレイパネル。（２）
（付記３）
放電開始電圧がもっとも高い特性を有する色のセルにおける前記第１及び第２電極の対向する前記エッジの間隔の平均値が、他色における前記エッジの間隔の平均値より小さい請求項１に記載のプラズマディスプレイパネル。（３）
（付記４）
緑色のセルにおける前記第１及び第２電極の対向する前記エッジの間隔の平均値が、他色における前記第１及び第２電極の対向する前記エッジの間隔の平均値より小さい請求項３に記載のプラズマディスプレイパネル。（４）
（付記５）
前記第１及び第２電極の対向する前記エッジの間隔の最小値は、略２０μｍである請求項１に記載のプラズマディスプレイパネル。（５）
（付記６）
前記第１及び第２電極の対向する前記エッジの間隔の最大値は、略１００μｍ以下、望ましくは５０μｍ以下である請求項１に記載のプラズマディスプレイパネル。（６）
（付記７）
前記第１及び第２電極の対向する前記エッジは、間隔が段階的に変化する階段状の形状を有し、
少なくとも１つの色のセルにおける前記第１及び第２電極の対向する前記エッジの間隔の段階的な変化の傾きが、他の色の前記エッジの間隔の段階的な変化の傾きと異なる請求項１に記載のプラズマディスプレイパネル。（７）
（付記８）
少なくとも１つの色のセルにおける前記第１及び第２電極の対向する前記エッジは曲線により形成されて間隔が徐々に変化し、他の色のセルにおける前記エッジは直線により形成されて間隔が徐々に変化する請求項１に記載のプラズマディスプレイパネル。（８）
（付記９）
少なくとも１つの色のセルにおける前記第１及び第２電極の対向する前記エッジは曲線により形成されて間隔が徐々に変化し、他の色のセルにおける前記エッジは、間隔が段階的に変化する階段状の形状を有し、間隔が段階的に変化する請求項１に記載のプラズマディスプレイパネル。
（付記１０）
セル内における前記第３電極の位置が、前記第１及び第２電極の対向する前記エッジの間隔の変化に応じて異なる請求項１に記載のプラズマディスプレイパネル。（９）
（付記１１）
前記第１の基板に設けられた前記誘電体層は、気相成膜法により形成された珪素化合物である請求項１に記載のプラズマディスプレイパネル。
（付記１２）
前記第１の基板に設けられた前記誘電体層の厚さは、略１０μｍ以下である請求項１に記載のプラズマディスプレイパネル。
（付記１３）
前記放電ガスは、少なくともネオンとキセノンを含み、キセノンの混合比が１０％以上である請求項１に記載のプラズマディスプレイパネル。
（付記１４）
請求項１から１３のいずれか１項に記載のプラズマディスプレイパネルと、
前記複数の第１電極に電圧を印加する第１駆動回路と、
前記複数の第２電極に電圧を印加する第２駆動回路と、
前記複数の第３電極に電圧を印加する第３駆動回路とを備え、
前記第２駆動回路は、前記複数の第２電極にスキャンパルスを順次印加し、前記第３駆動回路は、前記スキャンパルスに同期して前記複数の第３電極にアドレスパルスを印加し、前記スキャンパルスが印加された前記第２電極と前記アドレスパルスが印加された前記第３電極の交点のセルでアドレス放電を発生させて点灯するセルを選択し、
前記第１駆動回路及び前記第２駆動回路は、前記複数の第１電極及び前記複数の第２電極に維持パルスを交互に印加して、前記選択した点灯セルで繰返し維持放電を発生させて点灯させることを特徴とするプラズマディスプレイ装置。（１０） Although the PDP apparatus according to the second embodiment of the present invention has been described above, the same modification as described in the first embodiment can be applied to the PDP according to the first embodiment.
(Appendix 1)
A first substrate and a second substrate that is disposed so as to face the first substrate and forms a discharge space in which a discharge gas is sealed between the first substrate and the first substrate;
The first substrate includes a plurality of first electrodes and second electrodes that are alternately arranged in parallel and perform sustain discharge, and a dielectric layer that covers the plurality of first electrodes and second electrodes,
The second substrate is provided between the plurality of third electrodes arranged in a direction substantially perpendicular to the extending direction of the plurality of first electrodes and the second electrode, and the plurality of third electrodes. A plurality of barrier ribs, and a phosphor layer that emits each color of red, green, and blue, which is provided in order in a portion separated by the barrier ribs on both sides corresponding to each third electrode,
A plasma display panel in which a cell is defined by the first electrode and the second electrode that perform sustain discharge and the partition wall,
The plurality of first electrodes and the second electrode are provided to face each other to perform discharge, and an edge in which a distance between the faces changes in each cell when viewed from a direction perpendicular to the first and second substrates. With
The plasma display panel according to claim 1, wherein a change in the distance between the opposing edges of the first and second electrodes in the cell of at least one color is different from a change in the distance between the edges of the other colors. (1)
(Appendix 2)
The plurality of first electrodes includes a plurality of first bus electrodes provided substantially in parallel, and a plurality of first discharge electrodes protruding from each first bus electrode for each cell,
The plurality of second electrodes includes a plurality of second bus electrodes provided substantially in parallel, and a plurality of second discharge electrodes protruding from each second bus electrode for each cell,
The plurality of first discharge electrodes and the second discharge electrodes are provided to face each other in order to perform discharge, and when facing each other from the direction perpendicular to the first and second substrates, the spacing between the faces changes in each cell. With an edge to
2. The plasma display panel according to claim 1, wherein a change in an interval between the opposing edges of the first and second discharge electrodes in at least one color cell is different from a change in the interval between the edges of another color. (2)
(Appendix 3)
The average value of the distance between the edges of the first and second electrodes facing each other in a cell having a color having the highest discharge start voltage is smaller than the average value of the distance between the edges in other colors. Plasma display panel. (3)
(Appendix 4)
The average value of the distance between the opposing edges of the first and second electrodes in a green cell is smaller than the average value of the distance between the opposing edges of the first and second electrodes in another color. Plasma display panel. (4)
(Appendix 5)
The plasma display panel according to claim 1, wherein a minimum value of an interval between the edges of the first and second electrodes facing each other is approximately 20 µm. (5)
(Appendix 6)
2. The plasma display panel according to claim 1, wherein a maximum value of an interval between the edges of the first and second electrodes facing each other is approximately 100 μm or less, preferably 50 μm or less. (6)
(Appendix 7)
The opposing edges of the first and second electrodes have a stepped shape with a stepwise change in spacing,
The slope of the gradual change in the interval between the edges of the first and second electrodes in at least one color cell is different from the slope of the gradual change in the interval between the edges of the other colors. 2. A plasma display panel according to 1. (7)
(Appendix 8)
The opposing edges of the first and second electrodes in at least one color cell are formed by curves and the intervals are gradually changed, and the edges in the other color cells are formed by straight lines and the intervals are gradually increased. The plasma display panel according to claim 1, which changes. (8)
(Appendix 9)
The opposing edges of the first and second electrodes in the cells of at least one color are formed by curves, and the intervals gradually change, and the edges in the cells of the other colors change in steps. The plasma display panel according to claim 1, wherein the plasma display panel has a shape and the interval changes stepwise.
(Appendix 10)
2. The plasma display panel according to claim 1, wherein the position of the third electrode in the cell differs according to a change in an interval between the edges of the first and second electrodes facing each other. (9)
(Appendix 11)
The plasma display panel according to claim 1, wherein the dielectric layer provided on the first substrate is a silicon compound formed by a vapor deposition method.
(Appendix 12)
2. The plasma display panel according to claim 1, wherein the dielectric layer provided on the first substrate has a thickness of about 10 μm or less.
(Appendix 13)
The plasma display panel according to claim 1, wherein the discharge gas includes at least neon and xenon, and a mixing ratio of xenon is 10% or more.
(Appendix 14)
A plasma display panel according to any one of claims 1 to 13,
A first drive circuit for applying a voltage to the plurality of first electrodes;
A second drive circuit for applying a voltage to the plurality of second electrodes;
A third drive circuit for applying a voltage to the plurality of third electrodes,
The second driving circuit sequentially applies a scan pulse to the plurality of second electrodes, the third driving circuit applies an address pulse to the plurality of third electrodes in synchronization with the scan pulse, and the scan Selecting a cell to be lit by generating an address discharge at a cell at the intersection of the second electrode to which a pulse is applied and the third electrode to which the address pulse is applied;
The first driving circuit and the second driving circuit alternately apply sustain pulses to the plurality of first electrodes and the plurality of second electrodes, and repeatedly generate sustain discharges in the selected lighting cells to light up. A plasma display device characterized by comprising: (10)

以上説明したように、本発明によれば、各セルの放電開始電圧を均一にできるので、放電開始電圧を低く設定でき、回路コストを低減できる。これにより、表示品質の良好なＰＤＰ装置を、低コストで実現できる。   As described above, according to the present invention, since the discharge start voltage of each cell can be made uniform, the discharge start voltage can be set low, and the circuit cost can be reduced. Thereby, a PDP device with good display quality can be realized at low cost.

本発明の第１実施例のＰＤＰ装置の全体構成を示す図である。It is a figure which shows the whole structure of the PDP apparatus of 1st Example of this invention. 第１実施例のＰＤＰの分解斜視図である。It is a disassembled perspective view of PDP of 1st Example. 第１実施例の電極形状を示す図である。It is a figure which shows the electrode shape of 1st Example. パッシェンカーブを示す図である。It is a figure which shows a Paschen curve. 第１実施例のＰＤＰ装置の駆動波形を示す図である。It is a figure which shows the drive waveform of the PDP apparatus of 1st Example. 電極形状の変形例を示す図である。It is a figure which shows the modification of an electrode shape. 電極形状の変形例を示す図である。It is a figure which shows the modification of an electrode shape. 電極形状の変形例を示す図である。It is a figure which shows the modification of an electrode shape. 電極形状の変形例を示す図である。It is a figure which shows the modification of an electrode shape. 電極形状の変形例を示す図である。It is a figure which shows the modification of an electrode shape. 第２実施例のＰＤＰの分解斜視図である。It is a disassembled perspective view of PDP of 2nd Example. 第２実施例の電極形状を示す図である。It is a figure which shows the electrode shape of 2nd Example. 第２実施例のＰＤＰ装置の駆動波形（奇数フィールド）を示す図である。It is a figure which shows the drive waveform (odd field) of the PDP apparatus of 2nd Example. 第２実施例のＰＤＰ装置の駆動波形（偶数フィールド）を示す図である。It is a figure which shows the drive waveform (even field) of the PDP apparatus of 2nd Example.

符号の説明Explanation of symbols

１ 前面基板
２ 背面基板
１１ 第１（Ｘ）放電電極
１２ 第１（Ｘ）バス電極
１３ 第２（Ｙ）放電電極
１４ 第２（Ｙ）バス電極
１５ 第１誘電体層
２０ 縦隔壁
２１、２２、２３ 蛍光体層
２７ 第３（アドレス）電極 DESCRIPTION OF SYMBOLS 1 Front substrate 2 Back substrate 11 1st (X) discharge electrode 12 1st (X) bus electrode 13 2nd (Y) discharge electrode 14 2nd (Y) bus electrode 15 1st dielectric layer 20 Vertical partition 21, 22 , 23 Phosphor layer 27 Third (address) electrode

Claims (10)

第１の基板と、前記第１の基板に対向するように配置され、前記第１の基板との間に放電ガスが封入された放電空間を形成する第２の基板とを備え、
前記第１の基板は、交互に略平行に配置され、維持放電を行う複数の第１電極及び第２電極と、前記複数の第１電極及び第２電極を覆う誘電体層とを備え、
前記第２の基板は、前記複数の第１電極及び第２電極の伸びる方向に対して略垂直な方向に配置された複数の第３電極と、前記複数の第３電極の間に設けられた複数の隔壁と、各第３電極に対応させて両側の隔壁で区切られる部分に順に設けられた赤色、緑色及び青色の各色を発光する蛍光体層とを備え、
維持放電を行う前記第１電極及び第２電極と前記隔壁によりセルが規定されるプラズマディスプレイパネルであって、
前記複数の第１電極及び第２電極は、放電を行うため対向して設けられ、前記第１及び第２の基板に垂直な方向から見た時に、各セル内で対向する間隔が変化するエッジを備え、
少なくとも１つの色のセルにおける前記第１及び第２電極の対向する前記エッジの間隔の変化が、他の色の前記エッジの間隔の変化と異なることを特徴とするプラズマディスプレイパネル。 A first substrate and a second substrate that is disposed so as to face the first substrate and forms a discharge space in which a discharge gas is sealed between the first substrate and the first substrate;
The first substrate includes a plurality of first electrodes and second electrodes that are alternately arranged in parallel and perform sustain discharge, and a dielectric layer that covers the plurality of first electrodes and second electrodes,
The second substrate is provided between the plurality of third electrodes arranged in a direction substantially perpendicular to the extending direction of the plurality of first electrodes and the second electrode, and the plurality of third electrodes. A plurality of barrier ribs, and a phosphor layer that emits red, green, and blue colors corresponding to each third electrode and sequentially provided in a portion that is partitioned by the barrier ribs on both sides,
A plasma display panel in which a cell is defined by the first electrode and the second electrode that perform sustain discharge and the partition wall,
The plurality of first electrodes and the second electrode are provided to face each other to perform discharge, and an edge in which a distance between the faces changes in each cell when viewed from a direction perpendicular to the first and second substrates. With
The plasma display panel according to claim 1, wherein a change in the distance between the opposing edges of the first and second electrodes in the cell of at least one color is different from a change in the distance between the edges of the other colors. 前記複数の第１電極は、略平行に設けられた複数の第１バス電極と、各第１バス電極からセル毎に突き出た複数の第１放電電極とを備え、
前記複数の第２電極は、略平行に設けられた複数の第２バス電極と、各第２バス電極からセル毎に突き出た複数の第２放電電極とを備え、
前記複数の第１放電電極及び第２放電電極は、放電を行うため対向して設けられ、前記第１及び第２の基板に垂直な方向から見た時に、各セル内で対向する間隔が変化するエッジを備え、
少なくとも１つの色のセルにおける前記第１及び第２放電電極の対向する前記エッジの間隔の変化が、他の色の前記エッジの間隔の変化と異なる請求項１に記載のプラズマディスプレイパネル。 The plurality of first electrodes includes a plurality of first bus electrodes provided substantially in parallel, and a plurality of first discharge electrodes protruding from each first bus electrode for each cell,
The plurality of second electrodes includes a plurality of second bus electrodes provided substantially in parallel, and a plurality of second discharge electrodes protruding from each second bus electrode for each cell,
The plurality of first discharge electrodes and the second discharge electrodes are provided to face each other in order to perform discharge, and when facing each other from the direction perpendicular to the first and second substrates, the spacing between the faces changes in each cell. With an edge to
2. The plasma display panel according to claim 1, wherein a change in an interval between the opposing edges of the first and second discharge electrodes in at least one color cell is different from a change in the interval between the edges of another color. 放電開始電圧がもっとも高い特性を有する色のセルにおける前記第１及び第２電極の対向する前記エッジの間隔の平均値が、他色における前記エッジの間隔の平均値より小さい請求項１に記載のプラズマディスプレイパネル。   The average value of the distance between the edges of the first and second electrodes facing each other in a cell having a color having the highest discharge start voltage is smaller than the average value of the distance between the edges of other colors. Plasma display panel. 緑色のセルにおける前記第１及び第２電極の対向する前記エッジの間隔の平均値が、他色における前記第１及び第２電極の対向する前記エッジの間隔の平均値より小さい請求項３に記載のプラズマディスプレイパネル。   The average value of the distance between the opposing edges of the first and second electrodes in a green cell is smaller than the average value of the distance between the opposing edges of the first and second electrodes in another color. Plasma display panel. 前記第１及び第２電極の対向する前記エッジの間隔の最小値は、略２０μｍである請求項１に記載のプラズマディスプレイパネル。   2. The plasma display panel according to claim 1, wherein a minimum value of an interval between the facing edges of the first and second electrodes is approximately 20 μm. 前記第１及び第２電極の対向する前記エッジの間隔の最大値は、略１００μｍ以下、望ましくは５０μｍ以下である請求項１に記載のプラズマディスプレイパネル。   2. The plasma display panel according to claim 1, wherein a maximum value of an interval between the opposing edges of the first and second electrodes is about 100 μm or less, preferably 50 μm or less. 前記第１及び第２電極の対向する前記エッジは、間隔が段階的に変化する階段状の形状を有し、
少なくとも１つの色のセルにおける前記第１及び第２電極の対向する前記エッジの間隔の段階的な変化の傾きが、他の色の前記エッジの間隔の段階的な変化の傾きと異なる請求項１に記載のプラズマディスプレイパネル。 The opposing edges of the first and second electrodes have a stepped shape with a stepwise change in spacing,
The slope of the gradual change in the interval between the edges of the first and second electrodes in at least one color cell is different from the slope of the gradual change in the interval between the edges of the other colors. 2. A plasma display panel according to 1. 少なくとも１つの色のセルにおける前記第１及び第２電極の対向する前記エッジは曲線により形成されて間隔が徐々に変化し、他の色のセルにおける前記エッジは直線により形成されて間隔が徐々に変化する請求項１に記載のプラズマディスプレイパネル。   The opposing edges of the first and second electrodes in at least one color cell are formed by curves and the intervals are gradually changed, and the edges in the other color cells are formed by straight lines and the intervals are gradually increased. The plasma display panel according to claim 1, which changes. セル内における前記第３電極の位置が、前記第１及び第２電極の対向する前記エッジの間隔の変化に応じて異なる請求項１に記載のプラズマディスプレイパネル。   2. The plasma display panel according to claim 1, wherein the position of the third electrode in the cell differs according to a change in an interval between the edges of the first and second electrodes facing each other. 請求項１から９のいずれか１項に記載のプラズマディスプレイパネルと、
前記複数の第１電極に電圧を印加する第１駆動回路と、
前記複数の第２電極に電圧を印加する第２駆動回路と、
前記複数の第３電極に電圧を印加する第３駆動回路とを備え、
前記第２駆動回路は、前記複数の第２電極にスキャンパルスを順次印加し、前記第３駆動回路は、前記スキャンパルスに同期して前記複数の第３電極にアドレスパルスを印加し、前記スキャンパルスが印加された前記第２電極と前記アドレスパルスが印加された前記第３電極の交点のセルでアドレス放電を発生させて点灯するセルを選択し、
前記第１駆動回路及び前記第２駆動回路は、前記複数の第１電極及び前記複数の第２電極に維持パルスを交互に印加して、前記選択した点灯セルで繰返し維持放電を発生させて点灯させることを特徴とするプラズマディスプレイ装置。 A plasma display panel according to any one of claims 1 to 9,
A first drive circuit for applying a voltage to the plurality of first electrodes;
A second drive circuit for applying a voltage to the plurality of second electrodes;
A third drive circuit for applying a voltage to the plurality of third electrodes,
The second driving circuit sequentially applies a scan pulse to the plurality of second electrodes, the third driving circuit applies an address pulse to the plurality of third electrodes in synchronization with the scan pulse, and the scan Selecting a cell to be lit by generating an address discharge at a cell at the intersection of the second electrode to which a pulse is applied and the third electrode to which the address pulse is applied;
The first driving circuit and the second driving circuit alternately apply sustain pulses to the plurality of first electrodes and the plurality of second electrodes, and repeatedly generate a sustain discharge in the selected lighting cells to light up. A plasma display device characterized by comprising:
JP2005029243A 2005-02-04 2005-02-04 Plasma display panel and plasma display device Withdrawn JP2006216452A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2005029243A JP2006216452A (en) 2005-02-04 2005-02-04 Plasma display panel and plasma display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005029243A JP2006216452A (en) 2005-02-04 2005-02-04 Plasma display panel and plasma display device

Publications (1)

Publication Number Publication Date
JP2006216452A true JP2006216452A (en) 2006-08-17

Family

ID=36979479

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2005029243A Withdrawn JP2006216452A (en) 2005-02-04 2005-02-04 Plasma display panel and plasma display device

Country Status (1)

Country Link
JP (1) JP2006216452A (en)

Similar Documents

Publication Publication Date Title
KR100784597B1 (en) Plasma display panel and plasma display device
KR100756141B1 (en) Plasma display panel
JP4339740B2 (en) Plasma display panel and plasma display device
US7518573B2 (en) Driving method of plasma display panel and plasma display device
JP2002163986A (en) Plasma display panel
KR100749602B1 (en) Method for driving plasma display panel and plasma display device
KR100625496B1 (en) Plasma Display Panel
KR100781843B1 (en) Plasma display panel and plasma display device
JP4262648B2 (en) Plasma display panel
KR100725568B1 (en) Method for driving plasma display panel and plasma display device
KR100324261B1 (en) Plasma Display Panel and Method of Driving the same
JP2006216452A (en) Plasma display panel and plasma display device
KR100775204B1 (en) Method for driving plasma display panel and plasma display device
JP2006251624A (en) Plasma display device
JP2005258279A (en) Driving method of plasma display panel
JP2005079004A (en) Plasma display panel and plasma display device
JP4461733B2 (en) Driving method of plasma display panel
JPWO2007029287A1 (en) Driving method of arc tube array
JP2005005188A (en) Plasma display panel and its driving method
JP2006202669A (en) Plasma display panel and plasma display device
JP2006196286A (en) Plasma display panel and device
JP2007066722A (en) Plasma display panel, and plasma display device
JP2008027694A (en) Plasma display panel
KR20060133432A (en) Plasma display panel
JP2008257268A (en) Driving method of gas discharge panel

Legal Events

Date Code Title Description
RD02 Notification of acceptance of power of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7422

Effective date: 20070413

RD04 Notification of resignation of power of attorney

Effective date: 20070416

Free format text: JAPANESE INTERMEDIATE CODE: A7424

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20070822

A761 Written withdrawal of application

Effective date: 20081211

Free format text: JAPANESE INTERMEDIATE CODE: A761