JP2503072B2 - Gas discharge display panel - Google Patents
Gas discharge display panelInfo
- Publication number
- JP2503072B2 JP2503072B2 JP1093808A JP9380889A JP2503072B2 JP 2503072 B2 JP2503072 B2 JP 2503072B2 JP 1093808 A JP1093808 A JP 1093808A JP 9380889 A JP9380889 A JP 9380889A JP 2503072 B2 JP2503072 B2 JP 2503072B2
- Authority
- JP
- Japan
- Prior art keywords
- gas discharge
- display panel
- insulating layer
- glass
- discharge 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.)
- Expired - Lifetime
Links
Description
【発明の詳細な説明】 〔概 要〕 各種ディスプレイ装置に用いられるガス放電表示パネ
ル、特にAC駆動型のガス放電表示パネルにおける電極を
設けたガラス基板上に被覆される絶縁層の改良に関し、 電極を設けたガラス基板上に被覆する絶縁層として、
該ガラス基板との濡れ性が良く、しかも放電電圧特性が
安定となる低融点ガラスを用いることを目的とし、 所定のガス放電空間を隔てて対向配置した一対のガラ
ス基板の内の少なくとも一方に絶縁層で被覆された複数
の電極を設けたガス放電表示パネルにおいて、前記絶縁
層を、ZnOを添加したPbOを主成分とする低融点ガラスか
らなる下部絶縁膜と、CeO2を添加したPbOを主成分とす
る低融点ガラスからなる上部絶縁膜とを積層した二層膜
構造とした構成とする。DETAILED DESCRIPTION OF THE INVENTION [Outline] Improvement of an insulating layer coated on a glass substrate provided with an electrode in a gas discharge display panel used in various display devices, particularly in an AC drive type gas discharge display panel, As an insulating layer covering on the glass substrate provided with,
For the purpose of using a low melting point glass that has good wettability with the glass substrate and has stable discharge voltage characteristics, insulation is provided on at least one of a pair of glass substrates facing each other across a predetermined gas discharge space. In a gas discharge display panel provided with a plurality of electrodes covered with a layer, the insulating layer, a lower insulating film made of a low-melting glass containing PbO added ZnO as a main component, and PbO added CeO 2 A two-layer film structure is formed by laminating an upper insulating film made of low melting point glass as a component.
本発明は各種ディスプレイ装置に用いられるガス放電
表示パネルに係り、特にAC駆動型のガス放電表示パネル
における電極を設けたガラス基板上に被覆される絶縁層
の改良に関するものである。The present invention relates to a gas discharge display panel used in various display devices, and more particularly to improvement of an insulating layer coated on a glass substrate provided with electrodes in an AC-driven gas discharge display panel.
AC駆動型のガス放電表示パネルとしては、ドットマト
リックス型の表示パネルを始め、特殊な電極パターンを
用いた数字表示及び文字表示用のパネル、或いは一方の
基板側のみに電極を配列した面放電型の表示パネル等、
種々のタイプのものが提案されている。AC-driven gas discharge display panels include dot matrix type display panels, numeric display and character display panels using a special electrode pattern, or surface discharge type with electrodes arranged only on one substrate side. Display panel, etc.
Various types have been proposed.
このようなAC駆動型のガス放電表示パネルにおいて
は、一般的にガラス基板上に設けた電極をガス放電空間
より絶縁する等のために、絶縁層が被覆されている。こ
の被覆された絶縁層としては、ガラス基板表面との濡れ
性がよく、かつ放電電圧特性の安定化に寄与するものが
必要とされる。In such an AC drive type gas discharge display panel, generally, an insulating layer is coated in order to insulate the electrode provided on the glass substrate from the gas discharge space. The coated insulating layer is required to have good wettability with the surface of the glass substrate and contribute to stabilization of discharge voltage characteristics.
従来、例えば一般的なドットマトリックスタイプのAC
駆動型ガス放電表示パネルは第３図の要部断面図に示す
ように、一対のガラス基板1,11の内表面にそれぞれ複数
の電極2,12を直交するように配列し、その各複数の電極
2,12上に絶縁層3,13と、MgOなどの保護膜4,14が順に重
ねて被覆された一対のパネル構成基板21と22が図示しな
いスペーサの介在により所定ガス放電空間５を隔てて対
向配置され、かつその周囲は封着材６により封止されて
内部の前記ガス放電空間５に放電用ガスが封入されてい
る。Conventional, for example, general dot matrix type AC
As shown in the cross-sectional view of the main part of FIG. 3, the drive-type gas discharge display panel has a plurality of electrodes 2 and 12 arranged on the inner surfaces of a pair of glass substrates 1 and 11 so as to be orthogonal to each other. electrode
A pair of panel-constituting substrates 21 and 22 in which insulating layers 3 and 13 and protective films 4 and 14 such as MgO are sequentially stacked on 2 and 12 are separated by a spacer (not shown) to separate a predetermined gas discharge space 5. The discharge gas is filled in the gas discharge space 5 inside, which are arranged so as to face each other and are surrounded by a sealing material 6.
ここで上記絶縁層3,13としては、印刷・焼成工程によ
って形成したPbOを主成分とし、SiO2,B2O3,Al2O3等の適
当量を混合して基板との熱膨脹係数を整合した低融点ガ
ラスからなる厚膜、或いは蒸着法等により形成されるAl
2O3等からなる薄膜が適用されている。Here, as the insulating layers 3 and 13, PbO formed by a printing / firing process as a main component is mixed with an appropriate amount of SiO 2 , B 2 O 3 , Al 2 O 3 or the like to obtain a thermal expansion coefficient with the substrate. Thick film made of matched low melting point glass or Al formed by vapor deposition method, etc.
A thin film made of 2 O 3 etc. is applied.
ところが上記絶縁層3,13を前記低融点ガラスからなる
厚膜で形成した場合、該低融点ガラスの前記ガラス基板
1,11に対する濡れ性が不充分なため、第４図で示すよう
に例えばガラス基板１表面に対する該低融点ガラスから
なる絶縁層３の接触が部分的に反撥される所謂、濡れの
生じない部分が発生し、この非濡れ部分23が電極２上に
できると、該電極２が露出することから、酸化して抵抗
値が増加するなど、放電電圧特性が不安定となったり、
また電極２の近傍にできると輝度ムラ等が生ずる問題が
あった。However, when the insulating layers 3 and 13 are formed of a thick film made of the low melting point glass, the glass substrate of the low melting point glass is formed.
Since the wettability with respect to 1, 11 is insufficient, the contact of the insulating layer 3 made of the low-melting glass with the surface of the glass substrate 1 is partially repelled as shown in FIG. When the non-wetting part 23 is formed on the electrode 2, the electrode 2 is exposed, and the discharge voltage characteristic becomes unstable such that the electrode 2 is oxidized and the resistance value increases.
Further, if it is formed in the vicinity of the electrode 2, there is a problem that uneven brightness occurs.
そこでガラス基板との濡れ性の良い例えばZnOを添加
したPbOを主成分とする低融点ガラスを、絶縁層の形成
に用いることを試みているが、ガラス基板との濡れ性の
良い絶縁層を用いた表示パネルでは一般的に放電電圧が
経時変化し易く、放電電圧特性が不安定となるといっ
た、所謂裏腹な関係にある欠点があった。Therefore, we are trying to use a low melting point glass with a good wettability with the glass substrate, for example, PbO added with ZnO as the main component, to form the insulating layer. In general, the display panel has a drawback in that the discharge voltage easily changes with time and the discharge voltage characteristic becomes unstable, which is a contradictory relationship.
本発明は上記した従来の問題点に鑑み、電極を設けた
ガラス基板上に被覆する絶縁層として、該ガラス基板と
の濡れ性が良く、しかも放電電圧特性が安定となる低融
点ガラスを用いた新規なガス放電表示パネルを提供する
ことを目的とするものである。In view of the above-mentioned conventional problems, the present invention uses a low melting point glass that has good wettability with the glass substrate and has stable discharge voltage characteristics, as an insulating layer that covers the glass substrate provided with electrodes. An object of the present invention is to provide a new gas discharge display panel.
〔課題を解決するための手段〕 本発明は上記した目的を達成するため、所定のガス放
電空間を隔てて対向配置した一対のガラス基板の内の少
なくとも一方に絶縁層で被覆された複数の電極を設けた
ガス放電表示パネルにおいて、前記絶縁層を、ZnOを添
加したPbOを主成分とする低融点ガラスからなる下部絶
縁膜と、CeO2を添加したPbOを主成分とする低融点ガラ
スからなる上部絶縁膜とを積層した二層膜構造とした構
成とする。[Means for Solving the Problems] In order to achieve the above-mentioned object, the present invention has a plurality of electrodes coated with an insulating layer on at least one of a pair of glass substrates arranged facing each other across a predetermined gas discharge space. In the gas discharge display panel provided with, the insulating layer, a lower insulating film made of ZnO-added PbO-based low-melting-point glass, and CeO 2 added PbO-based low-melting-point glass as a main component A two-layer film structure is formed by stacking an upper insulating film.
主成分のPbOにSiO2,B2O3,Al2O3の適当量を混合し、更
にZnOを添加した低融点ガラスを絶縁層として用いた場
合、ガラス基板との濡れ性は良好であるが、放電電圧特
性は不安定であり、また主成分のPbOにSiO2,B2O3,Al2O3
の適当量を混合し、更にCeO2を添加した低融点ガラスを
絶縁層として用いた場合は、放電電圧特性は安定である
が、ガラス基板との濡れ性が悪いということが実験的に
判明した。本発明はかかる２種類の低融点ガラスの特性
に着目し、この特性を利用したものであり、上述した如
くガラス基板との濡れ性の良い前記ZnOを添加したPbOを
主成分とする低融点ガラスからなる下部絶縁膜と、その
下部絶縁膜上に放電ガスと接触する絶縁層の表面部の物
性によって決まる放電電圧特性の安定な前記CeO2を添加
した低融点ガラスからなる上部絶縁膜とを積層した二層
膜構造の絶縁層にすると、従来の如き絶縁層に非濡れ部
分が発生する問題や、放電電圧の経時変化等が解消し、
放電電圧特性の安定なガス放電表示パネルを得ることが
できる。When we mix the appropriate amount of SiO 2 , B 2 O 3 , and Al 2 O 3 into the main component PbO and use the low melting point glass with ZnO added as the insulating layer, the wettability with the glass substrate is good. However, the discharge voltage characteristics are unstable, and SiO 2 , B 2 O 3 , and Al 2 O 3 are added to the main component PbO.
It was experimentally found that the discharge voltage characteristics were stable but the wettability with the glass substrate was poor when a low melting point glass to which CeO 2 was added was mixed as an insulating layer. . The present invention focuses on the characteristics of these two types of low-melting-point glass and utilizes these characteristics. As described above, the low-melting-point glass containing PbO containing ZnO, which has good wettability with the glass substrate, as a main component. And a lower insulating film made of low melting point glass containing CeO 2 with stable discharge voltage characteristics determined by the physical properties of the surface of the insulating layer in contact with the discharge gas are laminated on the lower insulating film. When the insulating layer having the two-layer film structure is formed, the problem that the non-wetting portion is generated in the insulating layer as in the conventional case, the change with time of the discharge voltage, etc. are solved,
A gas discharge display panel having stable discharge voltage characteristics can be obtained.
以下図面を用いて本発明の実施例について詳細に説明
する。Embodiments of the present invention will be described in detail below with reference to the drawings.
第１図及び第２図は本発明に係るAC駆動型ガス放電表
示パネルをドットマトリックスタイプのAC駆動型ガス放
電表示パネルに適用した場合の一実施例を示す斜視図及
びそのＡ−Ａ′切断線に沿う断面図であり。第３図と同
等部分には同一符号を付している。FIG. 1 and FIG. 2 are perspective views showing an embodiment in which the AC drive type gas discharge display panel according to the present invention is applied to a dot matrix type AC drive type gas discharge display panel and its AA ′ cut section. It is sectional drawing which follows the line. The same parts as those in FIG. 3 are designated by the same reference numerals.
これら両図において、それぞれ複数の電極2,12が配列
された一対のガラス基板1,11上には、主成分となるPbO
にSiO2,B2O3,Al2O3の適当量を混合したガラス材に、更
にZnOを例えば0.1〜5.0重量％添加した前記各ガラス基
板1,11との濡れ性の良い低融点ガラスからなる下部絶縁
膜32と、その下部絶縁膜32上に同じく主成分となるPbO
にSiO2,B2O3,Al2O3の適当量を混合したガラス材にCeO2
を例えば0.1〜5.0重量％添加した放電電圧特性の安定な
低融点ガラスからなる上部絶縁膜33とを積層した二層膜
構造の絶縁層31が印刷塗布法と焼成工程によりそれぞれ
形成されている。In both of these figures, the main component PbO
SiO 2, B 2 O 3, Al to 2 O glass material appropriate amount mixed with the 3, further wettable low melting point glass of the respective glass substrates 1 and 11 with the addition of ZnO for example 0.1 to 5.0% by weight On the lower insulating film 32 and PbO which is also the main component on the lower insulating film 32.
CeO 2 was added to a glass material containing a suitable amount of SiO 2 , B 2 O 3 and Al 2 O 3 mixed with
For example, an insulating layer 31 having a two-layer film structure in which an upper insulating film 33 made of a low melting point glass having a stable discharge voltage characteristic to which 0.1 to 5.0% by weight is added is formed by a print coating method and a firing step.
上記下部絶縁膜32は前記各ガラス基板1,11との濡れ性
が極めて良好であるでため、従来のような非濡れ部分が
生じることはなく、また該下部絶縁膜32と上部絶縁膜33
との密着性（濡れ性）も良好であるので、全面にわたっ
て均一な厚さの一体化された二層膜構造の絶縁層31を容
易に設けることが可能となる。Since the lower insulating film 32 has extremely good wettability with the glass substrates 1 and 11, no non-wetting portion as in the conventional case occurs, and the lower insulating film 32 and the upper insulating film 33 are not formed.
Since the adhesiveness (wettability) to and is good, it is possible to easily provide the insulating layer 31 having an integrated two-layer film structure with a uniform thickness over the entire surface.
従って、その各絶縁層31の表面に従来と同様にMgOな
どの保護膜4,14を被覆し、かかる一対のパネル構成基板
41と42とをそれら相互の各電極2,12が直交するように図
示しないスペーサを介在して所定ガス放電空間５を隔て
た状態で対向配置し、その周囲を封着材６により封止し
て内部の前記ガス放電空間５に放電用ガスを封入したパ
ネル構造とすることにより、経時的な放電電圧の変化等
のない、放電電圧特性の安定なガス放電表示パネルを得
ることができる。Therefore, the surface of each insulating layer 31 is covered with protective films 4 and 14 such as MgO as in the conventional case, and the pair of panel constituent substrates
41 and 42 are arranged opposite to each other with a spacer (not shown) interposed so as to separate a predetermined gas discharge space 5 so that their respective electrodes 2 and 12 are orthogonal to each other, and the periphery thereof is sealed with a sealing material 6. With a panel structure in which a discharge gas is filled in the gas discharge space 5 inside, a gas discharge display panel having stable discharge voltage characteristics without a change in discharge voltage over time can be obtained.
なお、以上の実施例ではドットマトリックスタイプの
AC駆動型ガス放電表示パネルにおける絶縁層を対象とし
た場合の例について説明したが、本発明はこの例に限定
されるものではなく、例えば数字表示用、或いは面放電
型等のAC駆動型ガス放電表示パネルにおける絶縁層に適
用した場合にも同様の効果が得られる。In the above embodiment, the dot matrix type
Although an example in the case of targeting an insulating layer in an AC drive type gas discharge display panel has been described, the present invention is not limited to this example, for example, for number display, or a surface discharge type AC drive type gas. The same effect can be obtained when applied to an insulating layer in a discharge display panel.
以上の説明から明らかなように、本発明に係るガス放
電表示パネルによれば、電極を設けたガラス基板上に絶
縁層を一様な濡れ性をもって均一な厚さに配設すること
ができ、しかも放電電圧の経時変化のない、安定な放電
電圧特性が得られる等、優れた効果を有する。As is clear from the above description, according to the gas discharge display panel of the present invention, it is possible to dispose the insulating layer on the glass substrate provided with the electrodes with a uniform wettability and a uniform thickness, In addition, it has excellent effects such as stable change in discharge voltage and no change in discharge voltage over time.
第１図は本発明に係るAC駆動型ガス放電表示パネルをド
ットマトリックスタイプのAC駆動型ガス放電表示パネル
に適用した場合の一実施例を示す斜視図、 第２図は第１図に示するＡ−Ａ′切断線に沿った断面
図、 第３図は従来のドットマトリックスタイプのAC駆動型ガ
ス放電表示パネルを説明するための要部断面図、 第４図は従来のドットマトリックスタイプのAC駆動型ガ
ス放電表示パネルにおける問題点を説明するための部分
断面図である。 第１図〜第２図において、 1,11はガラス基板、2,12は電極、4,14保護膜、５はガス
放電空間、６は封着材、31は絶縁層、32は下部絶縁膜、
33は上部絶縁膜、41,42はパネル構成基板をそれぞれ示
す。FIG. 1 is a perspective view showing an embodiment in which the AC drive type gas discharge display panel according to the present invention is applied to a dot matrix type AC drive type gas discharge display panel, and FIG. 2 is shown in FIG. FIG. 3 is a cross-sectional view taken along the line AA ′, FIG. 3 is a cross-sectional view of a main part for explaining a conventional dot matrix type AC driven gas discharge display panel, and FIG. 4 is a conventional dot matrix type AC. FIG. 6 is a partial cross-sectional view for explaining a problem in the drive-type gas discharge display panel. In FIGS. 1 and 2, 1,11 are glass substrates, 2,12 are electrodes, 4,14 protective films, 5 are gas discharge spaces, 6 is a sealing material, 31 is an insulating layer, and 32 is a lower insulating film. ,
33 is an upper insulating film, and 41 and 42 are panel constituent substrates, respectively.
Claims (1)
置した一対のガラス基板（1,11）の内の少なくとも一方
に絶縁層（31）で被覆された複数の電極（2,12）を設け
たパネル構成において、 上記絶縁層（31）を、ZnOを添加したPbOを主成分とする
低融点ガラスからなる下部絶縁膜（32）と、CeO2を添加
したPbOを主成分とする低融点ガラスからなる上部絶縁
膜（33）とを積層した二層膜構造としたことを特徴とす
るガス放電表示パネル。1. A plurality of electrodes (2, 12) covered with an insulating layer (31) on at least one of a pair of glass substrates (1, 11) facing each other across a predetermined gas discharge space (5). ) Are provided, the insulating layer (31) is composed of a lower insulating film (32) made of a low melting point glass containing PbO added with ZnO as a main component and a PbO added with CeO 2 as a main component. A gas discharge display panel having a two-layer film structure in which an upper insulating film (33) made of low melting point glass is laminated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1093808A JP2503072B2 (en) | 1989-04-12 | 1989-04-12 | Gas discharge display panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1093808A JP2503072B2 (en) | 1989-04-12 | 1989-04-12 | Gas discharge display panel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02273439A JPH02273439A (en) | 1990-11-07 |
| JP2503072B2 true JP2503072B2 (en) | 1996-06-05 |
Family
ID=14092706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1093808A Expired - Lifetime JP2503072B2 (en) | 1989-04-12 | 1989-04-12 | Gas discharge display panel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2503072B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5948537A (en) | 1997-03-28 | 1999-09-07 | Asahi Glass Company Ltd. | Substrate for a plasma display panel and low melting point glass composition |
| US7450684B2 (en) | 2004-05-27 | 2008-11-11 | Panasonic Corporation | Glass recovery method |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3778223B2 (en) * | 1995-05-26 | 2006-05-24 | 株式会社日立プラズマパテントライセンシング | Plasma display panel |
| US6376400B1 (en) | 1999-02-25 | 2002-04-23 | Asahi Glass Company, Limited | Low melting point glass for covering electrodes, and glass ceramic composition for covering electrodes |
-
1989
- 1989-04-12 JP JP1093808A patent/JP2503072B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5948537A (en) | 1997-03-28 | 1999-09-07 | Asahi Glass Company Ltd. | Substrate for a plasma display panel and low melting point glass composition |
| US7450684B2 (en) | 2004-05-27 | 2008-11-11 | Panasonic Corporation | Glass recovery method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02273439A (en) | 1990-11-07 |
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