JPH08162019A - Plasma display manufacturing method - Google Patents
Plasma display manufacturing methodInfo
- Publication number
- JPH08162019A JPH08162019A JP6306125A JP30612594A JPH08162019A JP H08162019 A JPH08162019 A JP H08162019A JP 6306125 A JP6306125 A JP 6306125A JP 30612594 A JP30612594 A JP 30612594A JP H08162019 A JPH08162019 A JP H08162019A
- Authority
- JP
- Japan
- Prior art keywords
- plasma display
- ink
- phosphor
- manufacturing
- pattern
- 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.)
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- Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
- Gas-Filled Discharge Tubes (AREA)
Abstract
(57)【要約】
【構成】インクジェットヘッドのインク噴出口から蛍光
体を含むインクを噴出させて、ガラス基板上に蛍光体に
よるパターンを描画することを特徴とするプラズマディ
スプレイの製造方法。
【効果】精細性に優れたプラズマディスプレイを得るこ
とができる。
(57) [Summary] [Structure] A method for manufacturing a plasma display, characterized in that an ink containing a phosphor is ejected from an ink ejection port of an inkjet head to draw a pattern of the phosphor on a glass substrate. [Effect] A plasma display having excellent definition can be obtained.
Description
【０００１】[0001]
【産業上の利用分野】本発明は新規なプラズマディスプ
レイの製造方法に関する。本願発明に係るプラズマディ
スプレイは壁掛けテレビや情報表示用のディスプレイと
して用いられる。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a novel method for manufacturing a plasma display. The plasma display according to the present invention is used as a wall-mounted television or a display for displaying information.
【０００２】[0002]
【従来の技術】従来、プラズマディスプレイの製造方法
としては、スクリーン印刷法が知られている。2. Description of the Related Art Conventionally, a screen printing method has been known as a method for manufacturing a plasma display.
【０００３】特に蛍光体を形成する工程においては、簡
便に低コストでできるため、スクリーン印刷法が多く用
いられている。Particularly in the step of forming a phosphor, the screen printing method is often used because it can be carried out easily and at low cost.
【０００４】また、特開平６−５２０５号公報に示され
るようなスクリーン印刷を行った後にサンドブラストを
用いる方法、特開平５−１４４３７５号公報に示される
ような架橋剤を塗布した後にスクリーン印刷する方法が
提案されているが、いずれもスクリーン印刷を用いてい
る。Further, a method of using sandblast after performing screen printing as disclosed in JP-A-6-5205, and a method of applying a cross-linking agent as described in JP-A-5-144375 and then screen printing. Has been proposed, but both use screen printing.
【０００５】しかしながらスクリーン印刷は精度の高い
パターンが形成できないという欠点があった。However, the screen printing has a drawback that a highly accurate pattern cannot be formed.
【０００６】また、高精度のパターンが得られる方法と
して、フォトリソグラフィーを用いた方法も用いられて
いるが、この場合、塗布、露光、現像、乾燥等の多くの
工程が必要になりコスト高になる。As a method for obtaining a highly accurate pattern, a method using photolithography is also used, but in this case, many steps such as coating, exposure, development and drying are required, resulting in high cost. Become.
【０００７】[0007]
【発明が解決しようとする課題】本発明者らは上記欠点
のないプラズマディスプレイの製造方法について鋭意検
討した結果、次の発明に到達した。特に、蛍光体を高精
度かつ簡便に形成できるプラズマディスプレイの製造方
法を提供することを目的とする。DISCLOSURE OF THE INVENTION The inventors of the present invention have earnestly studied a method of manufacturing a plasma display which does not have the above-mentioned drawbacks, and have arrived at the following invention. In particular, it is an object of the present invention to provide a method for manufacturing a plasma display, which is capable of forming a phosphor with high accuracy and easily.
【０００８】[0008]
【課題を解決するための手段】本発明は、インクジェッ
ト法によって基板上に蛍光体によるパターンを描画する
ことを特徴とするプラズマディスプレイの製造方法に関
する。SUMMARY OF THE INVENTION The present invention relates to a method for manufacturing a plasma display, which is characterized in that a pattern of a phosphor is drawn on a substrate by an ink jet method.
【０００９】インクジェット法は、電位制御可能なヘッ
ドノズルから微少なインク粒子を噴出し描画をおこなう
ものである。The ink jet method is a method in which minute ink particles are ejected from a head nozzle whose potential can be controlled to perform drawing.
【００１０】本発明では、この方式を利用して基板上に
高精度の蛍光体パターンを描画するものである。The present invention utilizes this method to draw a highly accurate phosphor pattern on a substrate.
【００１１】基板としては、ガラス基板を用いることが
できる。ガラス基板としては、ソーダガラスをはじめと
して公知のものはすべて用いることができるが、比較的
良好なものとして、歪点がソーダより高い旭硝子社製の
ＰＤ−２００が挙げられる。プラズマディスプレイに
は、放電を直流電流によって生じさせる方式（ＤＣ方
式）と交流電流によって生じさせる方式（ＡＣ方式）が
ある。どちらの方式も背面と表面の２枚の基板の間に放
電表示させるための加工を行ったものが用いられる。A glass substrate can be used as the substrate. As the glass substrate, all known ones such as soda glass can be used, but as a relatively good one, PD-200 manufactured by Asahi Glass Co., Ltd. having a strain point higher than that of soda can be mentioned. There are two types of plasma displays: a system in which discharge is generated by a direct current (DC system) and a system in which discharge is generated by an alternating current (AC system). In both methods, a substrate having a back surface and a front surface which is processed for discharge display is used.
【００１２】一般的に、プラズマディスプレイでは、基
板上には、電極や隔壁、また、場合に応じて誘電体、抵
抗体、絶縁体、ＭｇＯ等の保護膜を形成した上に蛍光体
が形成される。Generally, in a plasma display, a fluorescent material is formed on a substrate by forming electrodes, partition walls, and, if necessary, a protective film such as a dielectric, a resistor, an insulator, and MgO. It
【００１３】本発明においても、基板上に電極や隔壁、
場合によっては、抵抗体や誘電体を設けたものの上に蛍
光体のパターンを描画することができる。Also in the present invention, electrodes, partition walls, and
In some cases, the pattern of the phosphor can be drawn on the one provided with the resistor or the dielectric.
【００１４】さらに、本発明によって、隔壁を形成した
基板を用いることによって、インクを噴出した場合に異
なる種類のインクが混合しにくくなることが明らかにな
っている。Further, according to the present invention, it has been clarified that the use of the substrate having the partition walls makes it difficult to mix different kinds of ink when the ink is ejected.
【００１５】隔壁の着色に関しては特に限定はないが、
透明なもの、黒色のものを含む。There are no particular restrictions on the coloring of the partition walls,
Includes transparent and black ones.
【００１６】また、隔壁の高さとしては、５０ミクロン
〜５００ミクロンの間が適当である。Further, the height of the partition wall is suitably between 50 and 500 microns.
【００１７】これら電極、隔壁、誘電体、抵抗体、保護
膜を形成する方法としては、スクリーン印刷法、フォト
リソグラフィーを用いる方法、サンドブラストを用いる
方法、が用いられる。As a method of forming these electrodes, partition walls, dielectrics, resistors and protective films, there are used a screen printing method, a method using photolithography and a method using sandblast.
【００１８】本発明において、用いるインクは少なくと
も蛍光体を含有するものである。蛍光体としては、公知
のものはすべて用いることができるが、赤（Ｒ）、緑
（Ｇ）、青（Ｂ）の３種類を用いるのが一般的である。The ink used in the present invention contains at least a phosphor. As the fluorescent substance, all known fluorescent substances can be used, but it is general to use three types of red (R), green (G) and blue (B).
【００１９】具体的には、赤色としてＹ2 Ｏ3 ：Ｅｕ、
Ｙ2 ＳＩＯ5 ：Ｅｕ、Ｙ3 ＡｌＯ12：Ｅｕ、Ｚｎ3 （Ｐ
Ｏ4 ）2 ：Ｍｎ、ＹＢＯ3 ：Ｅｕ、（Ｙ，Ｇｄ）Ｂ
Ｏ3 ：Ｅｕ、ＧｄＢＯ3 ：Ｅｕ、ＳｃＢＯ3 ：Ｅｕ、Ｌ
ｕＢＯ3 ：Ｅｕ等があり、青色としてＹ2 ＳｉＯ5 ：Ｃ
ｅ、ＣａＷＯ4 ：Ｐｂ、ＢＡＭｇＡｌ14Ｏ23：Ｅｕ等が
あり、緑色としてＺｎ2 ＳｉＯ4 ：Ｍｎ、ＢａＡｌ12Ｏ
19：Ｍｎ、ＳｒＡｌ13Ｏ19：Ｍｎ、ＣａＡｌ12Ｏ19：Ｍ
ｎ、ＹＢＯ3 ：Ｔｂ、ＢａＭｇＡｌ14Ｏ23：Ｍｎ、Ｌｕ
ＢＯ3 ：Ｔｂ、ＧｄＢＯ3 ：ＴＢ、ＳｃＢＯ3 ：Ｔｂ、
Ｓｒ6 Ｓｉ3 Ｏ3 Ｃｌ4 ：Ｅｕ等がある。Specifically, as a red color, Y 2 O 3 : Eu,
Y 2 SIO 5 : Eu, Y 3 AlO 12 : Eu, Zn 3 (P
O 4 ) 2 : Mn, YBO 3 : Eu, (Y, Gd) B
O 3 : Eu, GdBO 3 : Eu, ScBO 3 : Eu, L
uBO 3 : Eu and the like, and Y 2 SiO 5 : C as blue
e, CaWO 4 : Pb, BAMgAl 14 O 23 : Eu, etc., and green as Zn 2 SiO 4 : Mn, BaAl 12 O.
19 : Mn, SrAl 13 O 19 : Mn, CaAl 12 O 19 : M
n, YBO 3: Tb, BaMgAl 14 O 23: Mn, Lu
BO 3 : Tb, GdBO 3 : TB, ScBO 3 : Tb,
Sr 6 Si 3 O 3 Cl 4 : Eu and the like.
【００２０】これら蛍光体を用いてインクを調整する場
合、希釈剤もしくは分散剤として公知の有機溶媒もしく
は水を用いることができ、バインダーとしてポリビニル
アルコールやアルキル化セルロース等の各種ポリマーを
用いることができる。When an ink is prepared using these phosphors, a known organic solvent or water can be used as a diluent or dispersant, and various polymers such as polyvinyl alcohol or alkylated cellulose can be used as a binder. .
【００２１】さらに、インク中に好ましくは１重量％〜
３０重量％の範囲でガラスフリットを添加することによ
って、誘電体面や基板（ガラス）面、隔壁面との接着性
を高め、耐久性に優れたプラズマディスプレイを得るこ
とができる。用いるガラスフリットとしては、融点が３
５０℃〜６００℃の低融点ガラスが好ましい。Further, the ink preferably contains 1% by weight to
By adding the glass frit in the range of 30% by weight, the adhesion to the dielectric surface, the substrate (glass) surface, and the partition surface can be enhanced, and a plasma display having excellent durability can be obtained. The glass frit used has a melting point of 3
A low melting point glass of 50 ° C. to 600 ° C. is preferable.
【００２２】インクの基板に対する後退接触角を調整す
ることにより、放電空間の底面だけではなく側面にも蛍
光体面を形成できる。インクの基板に対する後退接触角
を７０°以下にした場合、インクジェットによるインク
噴出後に、インクの表面張力で放電空間の側面にインク
が塗布できる。By adjusting the receding contact angle of the ink with respect to the substrate, the phosphor surface can be formed not only on the bottom surface of the discharge space but also on the side surface. When the receding contact angle of the ink with respect to the substrate is 70 ° or less, the ink can be applied to the side surface of the discharge space by the surface tension of the ink after the ink is ejected by the inkjet.
【００２３】この場合、蛍光体面積の増加により発光輝
度を高めることができる。後退接触角を測定する場合は
使用する基板を基準とする。In this case, the emission brightness can be increased by increasing the phosphor area. When measuring the receding contact angle, the substrate used is the reference.
【００２４】３種の蛍光体インクをパターン描画する方
法としては、次の方法がある。The following methods are available for pattern drawing the three types of phosphor ink.
【００２５】・単色の蛍光体を含むインクを噴出するイ
ンクジェットを用いてパターン描画を行うことを繰り返
すことによって、パターン描画を行う。The pattern drawing is performed by repeating the pattern drawing using the ink jet which ejects the ink containing the monochromatic phosphor.
【００２６】・赤、緑、青の蛍光体をそれぞれ含む３種
のインクを噴出する複数のインクジェットを用いて、同
時もしくは繰り返しによるパターン描画を行う。Simultaneous or repeated pattern drawing is performed using a plurality of ink jets that eject three types of ink containing red, green and blue phosphors, respectively.
【００２７】また、パターン形成後に熱を加えて、有機
物を除去することによって、高輝度で長寿命のプラズマ
ディスプレイを得ることができる。Further, by heating after the pattern formation to remove organic substances, it is possible to obtain a plasma display having high brightness and long life.
【００２８】加熱温度としては、３００℃〜８００℃の
温度範囲が好ましい。The heating temperature is preferably in the temperature range of 300 ° C to 800 ° C.
【００２９】[0029]
【実施例】図１は本発明にかかるプラズマディスプレイ
の蛍光体面形成方法の実施例を示す工程図であり、以
下、同図に従って、本発明をさらに詳細に説明する。1 is a process chart showing an embodiment of a method for forming a phosphor surface of a plasma display according to the present invention, and the present invention will be described in more detail below with reference to the drawing.
【００３０】まず、（Ａ）に示すように、ガラス板１上
に電極２、隔壁３のパターンを形成する。本実施例で
は、電極２をピッチ８０ミクロン、ライン幅４０ミクロ
ン、厚み１５ミクロンとして、障壁をピッチ８０ミクロ
ン、ライン幅４０ミクロン、厚み１５０ミクロンのマト
リクス状パターンとした。First, as shown in (A), a pattern of electrodes 2 and partition walls 3 is formed on a glass plate 1. In this embodiment, the electrodes 2 have a pitch of 80 microns, a line width of 40 microns and a thickness of 15 microns, and the barrier has a matrix pattern of a pitch of 80 microns, a line width of 40 microns and a thickness of 150 microns.
【００３１】次に、（Ｂ）に示されるように、隔壁３に
囲まれる放電空間内に、各色が所定の配列状態になるよ
うに、Ｒ、Ｇ、Ｂの３種類の蛍光体インクをインクジェ
ットヘッドから噴出させる。本実施例では、蛍光体とし
て次のものを用いた。Next, as shown in (B), three kinds of R, G, and B phosphor inks are ink-jetted in the discharge space surrounded by the partition walls 3 so that each color has a predetermined arrangement state. Eject from the head. In this example, the following phosphors were used.
【００３２】赤色 （Ｙ，Ｇｄ）ＢＯ3 ：Ｅｕ3+ 緑色 Ｚｎ2 ＳｉＯ4 ：Ｍｎ 青色 ＢａＭｇＡｌ14Ｏ23：Ｅｕ2+ これら蛍光体を４０重量％、低融点ガラスからなるガラ
スフリット１０重量％、有機溶媒としてターピネオール
４６重量％、バインダーとしてエチルセルロース４重量
％を混合したものを用いた。この蛍光体インクのガラス
に対する後退接触角は、６０°であった。Red (Y, Gd) BO 3 : Eu 3+ Green Zn 2 SiO 4 : Mn Blue BaMgAl 14 O 23 : Eu 2+ 40% by weight of these phosphors, 10% by weight of a glass frit made of a low melting point glass, A mixture of 46% by weight of terpineol as an organic solvent and 4% by weight of ethyl cellulose as a binder was used. The receding contact angle of this phosphor ink with respect to glass was 60 °.
【００３３】最後に、蛍光体の描画が終了した後
（Ｃ）、加熱焼成を行った。Finally, after the phosphor drawing was completed (C), heating and baking were performed.
【００３４】温度は１７０℃で１時間、その後、４５０
℃まで昇温し、４５０℃で１５分保持した後、室温まで
放冷した。The temperature is 170 ° C. for 1 hour and then 450
The temperature was raised to 0 ° C., the temperature was maintained at 450 ° C. for 15 minutes, and the temperature was allowed to cool to room temperature.
【００３５】以上の工程によって、セルピッチ１２０ミ
クロンの高精細なプラズマディスプレイの蛍光体面
（Ｄ）を形成することができた。Through the above steps, the phosphor surface (D) of a high-definition plasma display having a cell pitch of 120 μm could be formed.
【００３６】[0036]
【発明の効果】以上説明したように、本発明のプラズマ
ディスプレイの製造方法は、蛍光体面形成にインクジェ
ットを用いることによって、簡便にパターン形成を行う
ものである。As described above, the method of manufacturing a plasma display according to the present invention uses an ink jet to form the phosphor surface, thereby simply forming a pattern.
【００３７】これにより、高精細なプラズマディスプレ
イの製造が可能になる。This makes it possible to manufacture a high-definition plasma display.
【００３８】また、インクの表面張力により放電空間の
側面（隔壁の側面等）にも蛍光体面を形成できるので、
スクリーン印刷法を用いた場合のようなサンドブラスト
等の作業は不要となり、簡便にプラズマディスプレイを
製造できる。Further, since the surface tension of the ink can form a phosphor surface on the side surface of the discharge space (side surface of the partition wall, etc.),
Work such as sand blasting unlike the case of using the screen printing method is unnecessary, and the plasma display can be easily manufactured.
【図１】本発明にかかるプラズマディスプレイの蛍光体
面形成方法の一例を表す工程図である。FIG. 1 is a process chart showing an example of a method for forming a phosphor surface of a plasma display according to the present invention.
１ ガラス板 ２ 電極 ３ 隔壁 1 glass plate 2 electrode 3 partition wall
Claims (7)
によるパターンを描画することを特徴とするプラズマデ
ィスプレイの製造方法。1. A method of manufacturing a plasma display, which comprises drawing a pattern of a phosphor on a substrate by an inkjet method.
℃以上８００℃以下の温度で加熱することを特徴とする
請求項１記載のプラズマディスプレイの製造方法。2. After the pattern is drawn, 300
The method for manufacturing a plasma display according to claim 1, wherein the heating is performed at a temperature of not less than 80 ° C and not more than 800 ° C.
類を変更して複数回繰り返すことを特徴とする請求項１
記載のプラズマディスプレイの製造方法。3. The drawing of the pattern is repeated a plurality of times by changing the type of phosphor.
A method for manufacturing the plasma display described.
口を複数個備えたインクジェットヘッドから、異なる種
類の蛍光体インクを噴出することによって、複数色の蛍
光体をパターン描画することを特徴とする請求項１記載
のプラズマディスプレイの製造方法。4. Regarding the drawing of the pattern, a plurality of colors of phosphors are drawn by ejecting different kinds of phosphor ink from an inkjet head having a plurality of ink ejection ports. Item 2. A method for manufacturing a plasma display according to item 1.
蛍光体およびガラスフリットを含有するインクを用いる
ことを特徴とする請求項１記載のプラズマディスプレイ
の製造方法。5. An ink used in an inkjet method,
The method of manufacturing a plasma display according to claim 1, wherein an ink containing a phosphor and a glass frit is used.
いることを特徴とする請求項１記載のプラズマディスプ
レイの製造方法。6. The method of manufacturing a plasma display according to claim 1, wherein a substrate having a partition wall is used as the substrate.
接触角が７０°以下のものを用いることを特徴する請求
項１記載のプラズマディスプレイの製造方法。7. The method of manufacturing a plasma display according to claim 1, wherein the ink having a receding contact angle with the substrate to be used is 70 ° or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6306125A JPH08162019A (en) | 1994-12-09 | 1994-12-09 | Plasma display manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6306125A JPH08162019A (en) | 1994-12-09 | 1994-12-09 | Plasma display manufacturing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08162019A true JPH08162019A (en) | 1996-06-21 |
Family
ID=17953358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6306125A Pending JPH08162019A (en) | 1994-12-09 | 1994-12-09 | Plasma display manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08162019A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998027570A1 (en) * | 1996-12-17 | 1998-06-25 | Toray Industries, Inc. | Method and device for manufacturing plasma display |
| WO1999024999A1 (en) * | 1997-11-06 | 1999-05-20 | Matsushita Electric Industrial Co., Ltd. | Phosphor material, phosphor material powder, plasma display panel, and processes for producing these |
| US5951350A (en) * | 1996-09-18 | 1999-09-14 | Matsushita Electric Industrial Co., Ltd. | Production method of plasma display panel suitable for minute cell structure, the plasma panel, and apparatus for displaying the plasma display panel |
| JP2000268716A (en) * | 1999-03-18 | 2000-09-29 | Nec Corp | Manufacturing device and method for plasma display pannel |
| JP2001043800A (en) * | 1999-08-02 | 2001-02-16 | Dainippon Printing Co Ltd | Discharge means |
| WO2001079361A1 (en) * | 2000-04-17 | 2001-10-25 | Matsushita Electric Industrial Co., Ltd. | Ink for display panel and method for producing plasma display panel using the same |
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