JP2962039B2 - Plasma display panel - Google Patents
Plasma display panelInfo
- Publication number
- JP2962039B2 JP2962039B2 JP10443892A JP10443892A JP2962039B2 JP 2962039 B2 JP2962039 B2 JP 2962039B2 JP 10443892 A JP10443892 A JP 10443892A JP 10443892 A JP10443892 A JP 10443892A JP 2962039 B2 JP2962039 B2 JP 2962039B2
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- discharge
- display panel
- insulating substrate
- column
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Gas-Filled Discharge Tubes (AREA)
Description
【0001】[0001]
【産業上の利用分野】本発明は、情報表示端末や平面形
テレビなどに用いられるプラズマディスプレイパネルに
関し、特に高精細、大表示容量のカラープラズマディス
プレイパネルの高速且つ確実な動作を実現するための構
造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plasma display panel used for an information display terminal or a flat-panel television, and more particularly to a high-resolution and large-capacity color plasma display panel for realizing high-speed and reliable operation. Regarding the structure.
【0002】[0002]
【従来の技術】カラープラズマディスプレイパネルはガ
ス放電によって発生した紫外線によって蛍光体を励起発
光させ可視光を得て表示動作させるディスプレイである
が、放電方式によりAC型とDC型に分類できる。AC
型の中でも反射型AC面放電型が輝度、発光効率の点で
優れているのでこれを例に採る。図2に反射型AC面放
電プラズマディスプレイパネルの一つの放電セルの断面
図を示す。前面基板20に面放電を発生させる行電極で
ある透明電極19を形成する。透明電極19は通常IT
OもしくはSnO2 で形成するがシート抵抗が高いため
バス電極18を例えばAl薄膜や銀の厚膜で形成する。
この上を低融点鉛ガラスの絶縁層17で被覆する。この
表面を保護層16で被覆する。保護層は例えばMgO薄
膜で形成する。一方、後面基板10には列電極であるデ
ータ電極11を例えばAl薄膜や銀厚膜で形成し、絶縁
層12で被覆する。そして前面基板20と後面基板10
とを白色隔壁14と黒色隔壁15を間に介してストライ
プ状の透明電極19とストライプ状のデータ電極11と
が直交するように組合せる。これらの隔壁は例えばスク
リーン印刷やサンドブラストによって形成する。この時
蛍光体13は絶縁層12と白色隔壁14の表面に形成し
てある。2. Description of the Related Art A color plasma display panel is a display which excites and emits a fluorescent substance by ultraviolet rays generated by gas discharge to obtain visible light and performs a display operation, and can be classified into an AC type and a DC type according to a discharge method. AC
Among the molds, the reflective AC surface discharge type is superior in terms of luminance and luminous efficiency. FIG. 2 shows a sectional view of one discharge cell of the reflective AC surface discharge plasma display panel. A transparent electrode 19 as a row electrode for generating a surface discharge is formed on a front substrate 20. Transparent electrode 19 is usually IT
Although formed of O or SnO 2 , since the sheet resistance is high, the bus electrode 18 is formed of, for example, an Al thin film or a silver thick film.
This is covered with an insulating layer 17 of low melting point lead glass. This surface is covered with a protective layer 16. The protective layer is formed of, for example, an MgO thin film. On the other hand, a data electrode 11 as a column electrode is formed on the rear substrate 10 by, for example, an Al thin film or a silver thick film, and is covered with an insulating layer 12. The front substrate 20 and the rear substrate 10
Are combined so that the stripe-shaped transparent electrode 19 and the stripe-shaped data electrode 11 are orthogonal to each other with the white partition 14 and the black partition 15 interposed therebetween. These partitions are formed by, for example, screen printing or sandblasting. At this time, the phosphor 13 is formed on the surfaces of the insulating layer 12 and the white partition 14.
【0003】図3にAC面放電型プラズマディスプレイ
パネルの後面基板10側から見た平面図を示す。隣合う
透明電極32間で面放電を発生させる。透明電極32は
その両側の放電セル34にアクセスする。放電セル34
は隔壁33によって画定される。放電セル34内には
赤、青、緑の蛍光体が順に塗り分けられカラー画素配置
は三角配置となっている。データ電極30はストライプ
状の形状をしており、1行おきの放電セル34にアクセ
スし、アクセスしない行では隔壁33の下に隠れる。FIG. 3 is a plan view of an AC surface discharge type plasma display panel viewed from the rear substrate 10 side. Surface discharge is generated between adjacent transparent electrodes 32. The transparent electrode 32 accesses the discharge cells 34 on both sides thereof. Discharge cell 34
Is defined by the partition wall 33. Red, blue, and green phosphors are sequentially painted in the discharge cells 34, and the color pixel arrangement is triangular. The data electrode 30 has a stripe shape and accesses the discharge cells 34 in every other row, and is hidden under the barrier ribs 33 in rows that are not accessed.
【0004】駆動は、透明電極32が一本おきに走査電
極と維持電極になっているので、この隣り合う透明電極
32の間に維持パルスを印加し、表示データの書き込み
は走査電極とデータ電極30の間にデータパルスを印加
し放電を発生させることによって行う。走査電極はその
両側の放電セル34にアクセスするので走査電極1本で
放電セル2行を同時に走査することが出来る。In driving, since every other transparent electrode 32 serves as a scanning electrode and a sustaining electrode, a sustaining pulse is applied between the adjacent transparent electrodes 32, and display data is written in the scanning electrode and the data electrode. This is performed by applying a data pulse during 30 to generate a discharge. Since the scan electrode accesses the discharge cells 34 on both sides, two rows of discharge cells can be simultaneously scanned by one scan electrode.
【0005】パネル内部には放電可能なガス、例えばH
eとXeの混合ガスが250torr程度封入してあ
る。A dischargeable gas such as H
A mixed gas of e and Xe is sealed at about 250 torr.
【0006】[0006]
【発明が解決しようとする課題】従来のプラズマディス
プレイパネルでは、良好な表示が得られにくく、特にデ
ータの書き込み動作が不完全で、データパルス電圧を高
くする必要があり駆動上の問題を生じていた。この問題
は特に各画素の放電特性のばらつきが大きい大面積、大
表示容量のプラズマディスプレイパネルになるほど顕著
である。In the conventional plasma display panel, it is difficult to obtain a good display, particularly, the data write operation is incomplete, and it is necessary to increase the data pulse voltage, which causes a driving problem. Was. This problem is particularly remarkable in a plasma display panel having a large area and a large display capacity in which the variation in discharge characteristics of each pixel is large.
【0007】[0007]
【課題を解決するための手段】本発明は、絶縁層に被覆
された面放電を発生させる行電極が形成された第1の絶
縁基板と、データの書き込みを行う列電極を形成した第
2の絶縁基板とを、前記行電極と前記列電極が直交する
ように前記第1の絶縁基板と前記第2の絶縁基板とを、
間に各放電セルを画定する隔壁を介し相対向させたAC
面放電型プラズマディスプレイパネルに於いて、前記放
電セルにおける前記列電極のうち前記行電極の走査電極
の役割を果たす行電極と相対向する部分の幅が、前記放
電セルにおける前記列電極の書き込み放電に寄与しない
部分の線幅より広くされていることを特徴とする。 According to the present invention, there is provided a first insulating substrate on which a row electrode for generating a surface discharge covered with an insulating layer is formed, and a second insulating substrate on which a column electrode for writing data is formed. An insulating substrate, the first insulating substrate and the second insulating substrate such that the row electrode and the column electrode are orthogonal to each other,
ACs opposed to each other via partition walls defining each discharge cell
In a surface discharge type plasma display panel, a scan electrode of the row electrode among the column electrodes in the discharge cell
The width of the part opposite to the row electrode
Does not contribute to the writing discharge of the column electrode in the cell
It is characterized by being wider than the line width of the part.
【0008】[0008]
【作用】データの書き込み動作を詳細に検討した結果、
データ電極の有効面積と書き込み放電を発生させるため
に必要なデータ電極に印加する電圧の最小値の間には図
4及び図5のような関係があることが判った。ここで言
うデータ電極の有効面積とは放電セル34内で走査電極
に対向しているデータ電極30の面積である。図4で有
効データ電極面積が大きいほどデータの書き込み放電に
必要な電圧が低い。従って駆動回路の負担が低減され
る。また、書き込み放電の起き易さは、データ電極に印
加した電圧と書き込み放電に必要な電圧の最小値の差に
ほぼ比例するので、書き込み放電に必要な電圧の最小値
が低いほどこの差が大きくとれるので、確実な書き込み
動作が可能となる。[Operation] As a result of examining the data write operation in detail,
It has been found that there is a relationship between the effective area of the data electrode and the minimum value of the voltage applied to the data electrode required to generate the write discharge as shown in FIGS. Here, the effective area of the data electrode is the area of the data electrode 30 facing the scanning electrode in the discharge cell 34. In FIG. 4, as the effective data electrode area is larger, the voltage required for data write discharge is lower. Therefore, the load on the drive circuit is reduced. In addition, the likelihood of a write discharge is almost proportional to the difference between the voltage applied to the data electrode and the minimum value of the voltage required for the write discharge. Therefore, the lower the minimum value of the voltage required for the write discharge is, the larger the difference is. Therefore, a reliable writing operation can be performed.
【0009】また、データ電極の有効面積と放電遅れ時
間の関係は図5のようであることも判った。ここで言う
放電遅れ時間は電圧印加から放電が開始するまでの時間
から統計的遅れ時間を差し引いた放電形成時間のことで
ある。やはり有効電極面積が大きい方が放電遅れ時間は
短く、高速動作に有利であることが判る。It has also been found that the relationship between the effective area of the data electrode and the discharge delay time is as shown in FIG. The discharge delay time referred to here is a discharge formation time obtained by subtracting the statistical delay time from the time from the voltage application to the start of the discharge. Again, it can be seen that the larger the effective electrode area, the shorter the discharge delay time, which is advantageous for high-speed operation.
【0010】上述の結果からデータ電極の有効面積は広
い方がよいが、従来は、データ電極の形状がストライプ
状であったため、電極の幅を隔壁の幅よりも広くするこ
とが出来ず、充分な電極面積が得られなかったが、本発
明では、データ電極の幅を隔壁に隠れる部分では隔壁の
幅より細く、放電セルにかかる部分では広くしているの
で、充分なデータ電極の面積が確保できる。From the above results, it is better that the effective area of the data electrode is wider. However, since the shape of the data electrode is conventionally a stripe shape, the width of the electrode cannot be made larger than the width of the partition wall. However, in the present invention, a sufficient width of the data electrode is ensured because the width of the data electrode is narrower than the width of the partition in the portion hidden by the partition and wider in the portion over the discharge cell. it can.
【0011】[0011]
【実施例】次に本発明について図面を参照して説明す
る。図1は本発明の参考例を示す平面図である。ここで
は従来例で説明した反射型AC面放電プラズマディスプ
レイパネルを例に取って説明するが、これ以外でもデー
タ電極と主放電を発生させる電極を有する構造のAC型
プラズマディスプレイパネルで、データ電極が放電セル
にかかる部分と隔壁に重なる部分があるパネルであれ
ば、同様な効果が得られる。従来例で述べたプラズマデ
ィスプレイパネルは、データ電極の形状がストライプ状
であった。従ってデータ電極の有効面積を増やすために
電極幅を太くすると隔壁からはみ出してしまい、誤書き
込みが発生する。この点を解決するために本参考例では
図1のようにデータ電極1の形状を放電セル5の部分で
は放電セル5の大きさのほぼいっぱいに広げ有効電極面
積を最大限に取る。尚、図1は後面基板側からみた図で
ある。一方、隔壁4の下に隠れる部分では電極幅を隔壁
の幅より細くして誤書き込みを防ぐ。これによりデータ
の書き込み放電を従来より低電圧で且つ確実に行えるよ
うになった。なお放電セル34の断面図は従来例の図2
と同様になる。DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the drawings. FIG. 1 is a plan view showing a reference example of the present invention. Here, the reflection type AC surface discharge plasma display panel described in the conventional example will be described as an example, but other than this, an AC type plasma display panel having a structure including a data electrode and an electrode for generating a main discharge, wherein the data electrode is A similar effect can be obtained if the panel has a portion related to the discharge cell and a portion overlapping the partition. In the plasma display panel described in the conventional example, the shape of the data electrode is a stripe shape. Therefore, if the electrode width is increased in order to increase the effective area of the data electrode, the data electrode protrudes from the partition wall, and erroneous writing occurs. In order to solve this problem, in the present embodiment , as shown in FIG. 1, the shape of the data electrode 1 is expanded to almost the full size of the discharge cell 5 at the discharge cell 5 to maximize the effective electrode area. FIG. 1 is a view from the rear substrate side. On the other hand, in a portion hidden under the partition 4, the electrode width is made smaller than the width of the partition to prevent erroneous writing. As a result, data write discharge can be performed at a lower voltage and more reliably than before. The sectional view of the discharge cell 34 is shown in FIG.
Is the same as
【0012】図6は本発明の一実施例を示す平面図であ
る。この実施例では、データ電極の書き込み放電に寄与
する部分、すなわち、走査電極41に対向する部分のみ
データ電極40の幅を広げている。放電セル45内にあ
っても、維持電極43と対向するデータ電極40の部分
は書き込み放電に寄与しないので幅を広げておらず、ま
た書き込み放電に寄与しないデータ電極の隔壁44の下
に隠れる部分は隔壁の幅より狭くしている。このような
構造にすると、データ電極40間の静電容量が減るため
容量性の電流が減り駆動回路の負担が軽くなる。FIG. 6 is a plan view showing an embodiment of the present invention. This embodiment contributes to the writing discharge of the data electrode.
Portion, that is, only the portion facing the scanning electrode 41
The width of the data electrode 40 is increased. In the discharge cell 45
However, the portion of the data electrode 40 facing the sustain electrode 43
Does not contribute to write discharge, so it is not widened.
Under the partition 44 of the data electrode which does not contribute to the write discharge.
The portion that is hidden by is made smaller than the width of the partition. like this
With this structure, the capacitance between the data electrodes 40 is reduced, so that the capacitive current is reduced and the load on the drive circuit is reduced.
【0013】なお上記実施例では放電セルの形状が六角
形として説明したが、これは四角形や菱形等でも良く、
放電セルの形状に合わせてデータ電極の形状も変わって
くるが効果は同様である。また図6のデータ電極の形状
も同様なバリエーションが色々考えられる。In the above embodiment, the shape of the discharge cell is described as being hexagonal, but this may be square or rhombic.
Although the shape of the data electrode changes according to the shape of the discharge cell, the effect is the same. Various similar variations are also conceivable for the shape of the data electrode in FIG.
【0014】[0014]
【発明の効果】以上述べたように本発明のプラズマディ
スプレイパネルの構造を用いることにより、高速且つ確
実なデータの書き込み動作が出来るプラズマディスプレ
イパネルを作ることが出来た。As described above, by using the structure of the plasma display panel of the present invention, a plasma display panel capable of performing a high-speed and reliable data writing operation can be manufactured.
【図1】本発明の参考例を示す平面図である。FIG. 1 is a plan view showing a reference example of the present invention.
【図2】AC面放電型カラープラズマディスプレイパネ
ルの断面図である。FIG. 2 is a cross-sectional view of an AC surface discharge type color plasma display panel.
【図3】従来のプラズマディスプレイパネルの平面図で
ある。FIG. 3 is a plan view of a conventional plasma display panel.
【図4】有効データ電極面積と書き込みに必要な最小デ
ータ電圧の関係のグラフである。FIG. 4 is a graph showing a relationship between an effective data electrode area and a minimum data voltage required for writing.
【図5】有効データ電極面積と放電遅れ時間の関係のグ
ラフである。FIG. 5 is a graph showing a relationship between an effective data electrode area and a discharge delay time.
【図6】本発明の一実施例のプラズマディスプレイパネ
ルの平面図である。FIG. 6 is a plan view of a plasma display panel according to one embodiment of the present invention.
1,11,30,40 データ電極 2,18,31,42 バス電極 3,19,32 透明電極 4,33,44 隔壁 5,34,45 放電セル 10 後面基板 12 絶縁層 13 蛍光体 14 白色隔壁 15 黒色隔壁 16 保護層 17 絶縁層 20 前面基板 41 透明電極(走査電極) 43 透明電極(維持電極) 1,11,30,40 Data electrode 2,18,31,42 Bus electrode 3,19,32 Transparent electrode 4,33,44 Partition wall 5,34,45 Discharge cell 10 Back substrate 12 Insulating layer 13 Phosphor 14 White partition Reference Signs List 15 black partition wall 16 protective layer 17 insulating layer 20 front substrate 41 transparent electrode (scanning electrode) 43 transparent electrode (sustaining electrode)
Claims (2)
行電極が形成された第1の絶縁基板と、データの書き込
みを行う列電極を形成した第2の絶縁基板とを、前記行
電極と前記列電極が直交するように前記第1の絶縁基板
と前記第2の絶縁基板とを、間に隔壁を介し相対向させ
たAC面放電型プラズマディスプレイパネルにおいて、
放電セルにおける前記列電極のうち前記行電極の走査電
極の役割を果たす行電極と相対向する部分の幅が、前記
放電セルにおける前記列電極の書き込み放電に寄与しな
い部分の線幅より広くされていることを特徴とするプラ
ズマディスプレイパネル。A first insulating substrate provided with a row electrode for generating a surface discharge and covered with an insulating layer, and a second insulating substrate provided with a column electrode for writing data; And the first insulating substrate and the second insulating substrate are opposed to each other with a partition therebetween so that the column electrodes are orthogonal to the column electrodes.
AC surface discharge type plasma display panel,
The scanning electrode of the row electrode among the column electrodes in the discharge cell
The width of the part opposing the row electrode serving as a pole is
Do not contribute to the write discharge of the column electrodes in the discharge cells.
A plasma display panel characterized by being wider than the line width of the part .
行電極が形成された第1の絶縁基板と、データの書き込
みを行う列電極を形成した第2の絶縁基板とを、前記行
電極と前記列電極が直交するように前記第1の絶縁基板
と前記第2の絶縁基板とを、間に各放電セルを画定する
隔壁を介し相対向させ、前記列電極の書き込み放電に寄
与しない部分を前記隔壁で被覆したAC面放電型プラズ
マディスプレイパネルに於いて、前記列電極の幅が少な
くとも書き込み放電に寄与しない部分では隔壁の幅より
も狭く、且つ前記放電セルにおける前記列電極のうち前
記行電極の走査電極の役割を果たす前記行電極と相対向
する部分のみ幅を広くしたことを特徴とするプラズマデ
ィスプレイパネル。 2. A surface discharge covered by an insulating layer is generated.
A first insulating substrate on which row electrodes are formed, and data writing
A second insulating substrate on which a column electrode for performing
The first insulating substrate so that an electrode and the column electrode are orthogonal to each other
And the second insulating substrate to define each discharge cell therebetween.
The electrodes are opposed to each other via a partition wall, and approach the write discharge of the column electrode.
AC surface-discharge type plasma having a non-applied portion covered with the partition wall
In the display panel, the width of the column electrode is small.
At least in the part that does not contribute to the writing discharge,
Also narrow, and the front of the column electrodes in the discharge cells
Opposite to the row electrode serving as a scanning electrode for the recording electrode
The plasma
Display panel.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10443892A JP2962039B2 (en) | 1992-04-23 | 1992-04-23 | Plasma display panel |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10443892A JP2962039B2 (en) | 1992-04-23 | 1992-04-23 | Plasma display panel |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0644907A JPH0644907A (en) | 1994-02-18 |
JP2962039B2 true JP2962039B2 (en) | 1999-10-12 |
Family
ID=14380673
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10443892A Expired - Fee Related JP2962039B2 (en) | 1992-04-23 | 1992-04-23 | Plasma display panel |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2962039B2 (en) |
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US6670775B2 (en) | 2001-05-24 | 2003-12-30 | Nec Corporation | Plasma display panel and driving method thereof |
US6870316B2 (en) | 2000-03-28 | 2005-03-22 | Mitsubishi Denki Kabushiki Kaisha | Plasma display apparatus |
Families Citing this family (40)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100404573B1 (en) * | 1996-10-23 | 2004-03-09 | 엘지전자 주식회사 | Plasma display panel |
US6281628B1 (en) | 1998-02-13 | 2001-08-28 | Lg Electronics Inc. | Plasma display panel and a driving method thereof |
DE69916718T2 (en) | 1998-07-22 | 2005-04-21 | Matsushita Electric Ind Co Ltd | Plasma display panel and manufacturing method thereof |
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