JPH02129828A - Manufacture of image display - Google Patents
Manufacture of image displayInfo
- Publication number
- JPH02129828A JPH02129828A JP28452688A JP28452688A JPH02129828A JP H02129828 A JPH02129828 A JP H02129828A JP 28452688 A JP28452688 A JP 28452688A JP 28452688 A JP28452688 A JP 28452688A JP H02129828 A JPH02129828 A JP H02129828A
- Authority
- JP
- Japan
- Prior art keywords
- glass
- image display
- adhesive
- container
- back plate
- 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.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 15
- 239000011521 glass Substances 0.000 claims abstract description 72
- 239000000853 adhesive Substances 0.000 claims abstract description 35
- 230000001070 adhesive effect Effects 0.000 claims abstract description 35
- 239000000463 material Substances 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims description 11
- 238000005304 joining Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 abstract description 16
- 238000007789 sealing Methods 0.000 abstract description 13
- 239000011230 binding agent Substances 0.000 abstract description 5
- 239000005341 toughened glass Substances 0.000 abstract description 3
- 229910018669 Mn—Co Inorganic materials 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 abstract description 2
- 229910052596 spinel Inorganic materials 0.000 abstract 1
- 239000011029 spinel Substances 0.000 abstract 1
- 238000010894 electron beam technology Methods 0.000 description 6
- 230000001678 irradiating effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000002178 crystalline material Substances 0.000 description 1
- 238000005137 deposition process Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
Landscapes
- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は画像表示装置、特に画像表示面を形成されたガ
ラス容器とその裏面開口を閉鎖する背面板とで密封され
た空間に表示構造体を収容した画像表示装置の製造方法
に関する。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an image display device, and particularly to an image display device in which a display structure is housed in a space sealed by a glass container formed with an image display surface and a back plate that closes the rear opening of the glass container. The present invention relates to a method of manufacturing an image display device.
従来の技術
近年、電子ビームを用いてカラー画像を表示する平面型
の画像表示装置として、画像表示面を垂直方向に複数に
分割し、それぞれの領域毎に電子ビームを垂直方向に偏
向して複数のラインを表示し、さらに水平方向に複数に
分割して各領域毎にＲ，Ｇ、Ｂ等の蛍光体を順次発光さ
せるようにし、そのＲ，Ｇ、Ｂ等の蛍光体への電子ビー
ムの照射量をカラー映像信号によって制御するようにし
た画像表示装置が提案されている。BACKGROUND OF THE INVENTION In recent years, flat image display devices that display color images using electron beams have been developed by dividing the image display surface vertically into multiple areas and deflecting the electron beam vertically for each area. The line is further divided horizontally into a plurality of areas, and the R, G, B, etc. phosphors are sequentially emitted in each area, and the electron beam is directed to the R, G, B, etc. phosphors. An image display device has been proposed in which the amount of irradiation is controlled using a color video signal.
このような画像表示装置の構成例を、第３図により説明
すると、後方から前方に向かって順に背面電極１１、電
子ビーム源としての線陰極１２、ビーム引出し電極１３
、信号電極１４、水平集束電極１５、水平偏向電極１６
及び垂直偏向電極１７から成る表示構造体２を、画像表
示面１ａを形成されたガラス容器１とその裏面開口を閉
鎖する背面板５にて囲まれた空間に収容し、内部を真空
にして構成されている。そして、電子ビーム源としての
線陰極１２から出た電子ビームを、ビーム引出し電極１
３、信号電極１４、水平集束電極１５、水平偏向電極１
６及び垂直偏向電極１７で制御し、画像表示面ｌａ上の
Ｒ，Ｇ、Ｂ等の蛍光体を照射し、画像表示を行っている
。An example of the configuration of such an image display device will be explained with reference to FIG. 3. In order from the rear to the front, there is a back electrode 11, a line cathode 12 as an electron beam source, and a beam extraction electrode 13.
, signal electrode 14, horizontal focusing electrode 15, horizontal deflection electrode 16
A display structure 2 consisting of a display structure 2 and a vertical deflection electrode 17 is housed in a space surrounded by a glass container 1 having an image display surface 1a formed thereon and a back plate 5 that closes an opening on the back side of the glass container 1, and the inside is evacuated. has been done. Then, the electron beam emitted from the line cathode 12 as an electron beam source is transferred to the beam extraction electrode 1
3. Signal electrode 14, horizontal focusing electrode 15, horizontal deflection electrode 1
6 and a vertical deflection electrode 17, phosphors such as R, G, and B on the image display surface la are irradiated to display an image.
このような画像表示装置を製造するには、背面板５上に
表示構造体２を配置し、この背面板の外周部の封着部に
ガラス系接着材を塗布し、その上にガラス容器１を位置
合わせして被せることによって画像表示装置の組立体２
０を形成し、この組立体２０を第４図に示すように加熱
炉２１に入れて加熱し、ガラス系接着材を溶融して封着
し、画像表示装置を製造している。加熱炉２１では、第
５図に示すように、徐々に温度を上げて行き、約２５０
″Ｃになるとその温度に保持して接着材中の有機バイン
ダを除去し、その後再び温度を上昇させて約４５０ ’
Ｃに保持して接着材のフリットを溶融させることによっ
て接合している。又、２５０°Ｃ以上の温度領域では、
炉内を不活性雰囲気とすることによって、表示構造体２
の熱電子発生源である線陰極１２がダメージを受けない
ようにしている。In order to manufacture such an image display device, the display structure 2 is placed on the back plate 5, a glass adhesive is applied to the sealing part on the outer periphery of the back plate, and the glass container 1 is placed on top of the adhesive. By aligning and covering the image display device assembly 2
This assembly 20 is placed in a heating furnace 21 and heated as shown in FIG. 4, and the glass adhesive is melted and sealed to manufacture an image display device. In the heating furnace 21, as shown in FIG. 5, the temperature is gradually raised to about 250
When it reaches 450'C, the organic binder in the adhesive is removed by keeping it at that temperature, and then increasing the temperature again to about 450'C.
They are joined by holding them at C and melting the adhesive frit. In addition, in the temperature range of 250°C or higher,
By creating an inert atmosphere in the furnace, the display structure 2
This prevents the line cathode 12, which is the source of thermionic electrons, from being damaged.
発明が解決しようとする課題
ところが、上記製造方法では、加熱炉内に画像表示装置
の組立体を挿入して封着を行っているので、表示構造体
２も高温になり、その熱変形を無くすのが困難であり、
また封着のために大型の加熱炉が必要となり、設備が大
型化するとともに電気代、燃料代等のランニングコスト
も高々、コスト高となり、さらに加熱炉内をある程度不
活性雰囲気にしても高温に晒されるため完全に熱電子発
生源のダメージを無くすことはできないという問題があ
った。Problem to be Solved by the Invention However, in the above manufacturing method, since the assembly of the image display device is inserted into a heating furnace and sealed, the display structure 2 also becomes high temperature, and it is necessary to eliminate its thermal deformation. It is difficult to
In addition, a large heating furnace is required for sealing, which increases the size of the equipment and the running costs such as electricity and fuel costs.Furthermore, even if the inside of the heating furnace is kept in an inert atmosphere to some extent, the temperature remains high. There is a problem in that damage to the thermionic source cannot be completely eliminated because of exposure.
本発明は上記従来の問題点に鑑み、表示構造体の熱変形
や熱電子発生源のダメージを無くすことができ、設備を
小型化でき、コスト低減を図ることができる画像表示装
置の製造方法を提供することを目的とする。In view of the above-mentioned conventional problems, the present invention provides a method for manufacturing an image display device that can eliminate thermal deformation of the display structure and damage to the thermionic source, downsize the equipment, and reduce costs. The purpose is to provide.
課題を解決するための手段
本発明は、上記目的を達成するために、画像表示面を形
成されたガラス容器とその裏面開口を閉鎖する背面板と
で密封された空間に表示構造体を収容した画像表示装置
の製造方法であって、ガラス容器と背面板で囲まれた空
間に表示構造体を配置した状態でガラス容器と背面板の
封着部をガラス系接着材を介装して合わせ、この封着部
に光を照射し、ガラス系接着材を加熱溶融させて接合す
ることを特徴とする。Means for Solving the Problems In order to achieve the above object, the present invention accommodates a display structure in a space sealed by a glass container formed with an image display surface and a back plate that closes the rear opening of the glass container. A method for manufacturing an image display device, the method comprising: placing a display structure in a space surrounded by a glass container and a back plate, and then joining the sealed portions of the glass container and the back plate with a glass-based adhesive interposed therebetween; The method is characterized in that the sealed portion is irradiated with light and the glass-based adhesive is heated and melted for bonding.
前記照射光は赤外線光又はレーザ光が好適に用いられ、
又好ましくはガラス系接着材に照射光を吸収し易い材料
を添加する。The irradiation light is preferably infrared light or laser light,
Preferably, a material that easily absorbs irradiated light is added to the glass adhesive.
作 用
本発明によると、封着部にのみ赤外線やレーザ光を照射
することによって、光が照射されない表示構造体は勿論
のこと、照射光はガラスを透過するためガラス容器の封
着部も余り高温になることなく、従ってガラス容器の局
部加熱による割れも発生することなく、ガラス系接着材
を局部的に加熱溶融させてガラス容器と背面板を封着す
ることができる。また、ガラス系接着材に照射光を吸収
し易い材料を添加すると、さらに効率的にガラス系接着
材を加熱溶融させることができる。According to the present invention, by irradiating only the sealed portion with infrared rays or laser light, not only the display structure which is not irradiated with light but also the sealed portion of the glass container because the irradiated light passes through the glass. The glass adhesive can be locally heated and melted to seal the glass container and the back plate without raising the temperature and therefore without causing cracks due to local heating of the glass container. Furthermore, if a material that easily absorbs irradiated light is added to the glass adhesive, the glass adhesive can be heated and melted more efficiently.
実施例
以下、本発明の一実施例を第１図及び第２図に基づいて
説明する。EXAMPLE Hereinafter, an example of the present invention will be described based on FIGS. 1 and 2.
第１図において、１は画像表示面１ａを形成されたガラ
ス容器で、表示構造体２の収容空間を有し、外周部に封
着部３を形成するフランジ部４が形成されている。５は
ガラス容器１の裏面開口を閉鎖する金属又はガラスから
成る背面板で、その外周部がガラス容器１のフランジ部
４と対向し、ガラス系接着材６にて互いに密封接合され
ることによって封着部３が形成されている。In FIG. 1, reference numeral 1 denotes a glass container formed with an image display surface 1a, which has a housing space for a display structure 2, and has a flange portion 4 forming a sealing portion 3 on its outer periphery. Reference numeral 5 denotes a back plate made of metal or glass that closes the opening on the back side of the glass container 1. Its outer periphery faces the flange portion 4 of the glass container 1, and is sealed by being hermetically bonded to each other with a glass adhesive 6. A fitting part 3 is formed.
この封着部３は、ガラス容器１のフランジ部４と背面板
５の外周部をガラス系接着材６を介在させて合わせ、赤
外線ランプ７から放射された赤外線を反射鏡８にてガラ
ス系接着材６に向けて照射し、ガラス系接着材６を加熱
熔融させることによって形成される。This sealing part 3 is made by joining the flange part 4 of the glass container 1 and the outer circumferential part of the back plate 5 with a glass adhesive 6 interposed therebetween, and using a reflecting mirror 8 to bond the infrared rays emitted from the infrared lamp 7 to the glass adhesive. It is formed by irradiating the glass adhesive material 6 toward the material 6 and heating and melting the glass adhesive material 6.
前記ガラス系接着材６は、フリットと有機バインダの混
合物を主体とし、これに特に赤外線領域の波長の光線を
吸収し易い材料としてＦｅ−Ｍｎ−Ｃｏ系のスピネル型
構造の結晶物を添加して構成されている。又、ガラス容
器１も強化ガラス（カリガラス）を使用して局部加熱に
よる温度差で割れが発生するのを防Ｗしている。The glass-based adhesive 6 is mainly composed of a mixture of frit and an organic binder, to which is added Fe-Mn-Co-based spinel-type crystalline material as a material that easily absorbs light rays with wavelengths in the infrared region. It is configured. Further, the glass container 1 is also made of tempered glass (pot glass) to prevent cracks from occurring due to temperature differences due to local heating.
以上のようにしてガラス容器１と背面板５の封着を行う
と、照射光はガラス容器１のフランジ部４に局部的に照
射されるので、ガラス容器１内に配置された表示構造体
２は加熱されることなくほぼ室温に保たれる。従って、
大気中でも熱電子発生源にダメージを与えることはない
。又、照射光はフランジ部４のガラスを透過して主とし
てガラス系接着材６に吸収されるので、フランジ部４は
余り加熱されることなく、ガラス系接着材６が効率的に
加熱されて熔融し、ガラス容器１と背面板４が封着され
る。その際、ガラス容器１のフランジ部４が局部的に加
熱されることはないので、ガラス容器１のフランジ部４
と他の部分との境界屈曲部に応力集中が生じて割れを発
生するというようなこともない。更に、ガラス系接着材
６の加熱によりフランジ部４の一部が局部的に加熱され
ることになるが、強化ガラスを用いていることにより、
割れが発生することはない。When the glass container 1 and the back plate 5 are sealed together as described above, the irradiation light is locally irradiated onto the flange portion 4 of the glass container 1, so that the display structure 2 disposed inside the glass container 1 is is kept at approximately room temperature without being heated. Therefore,
Even in the atmosphere, it does not damage the thermionic source. Furthermore, since the irradiated light passes through the glass of the flange portion 4 and is mainly absorbed by the glass adhesive 6, the flange portion 4 is not heated too much and the glass adhesive 6 is efficiently heated and melted. Then, the glass container 1 and the back plate 4 are sealed. At that time, since the flange portion 4 of the glass container 1 is not locally heated, the flange portion 4 of the glass container 1
There is no possibility that stress concentration will occur at the boundary bending portion between the material and other portions, resulting in cracking. Furthermore, a part of the flange portion 4 will be locally heated due to the heating of the glass adhesive 6, but since tempered glass is used,
No cracks will occur.
次に、第２図により画像表示装置の全製造工程の概略を
説明する。まず、背面板５の外周部にガラス系接着材６
を塗布しくａ）、これを約３８０°Ｃ程度の温度まで加
熱して有機バインダを予め除去することによって接合時
にガスが大量に発生しないようにしくｂ）、その後この
背面板５の上に表示構造体２を構成する（ｃ）。一方、
ガラス容器１のフランジ部４にもガラス系接着材６を塗
布しくｄ）、これを上記と同様に加熱して有機バインダ
を除去しくｅ）、その後上記背面板５上にこのガラス容
器１を位置決めして被せ、ガラス容器１のフランジ部４
の上方から赤外線ランプ７にて赤外線を照射してガラス
系接着材６を加熱溶融してガラス容器１のフランジ部４
と背面板５の外周部を密封接合し、封着する。その後、
ガラス容器１と背面板５で密封された表示構造体２の収
容空間を真空引きすることによって画像表示装置が得ら
れる。Next, the entire manufacturing process of the image display device will be outlined with reference to FIG. First, a glass adhesive 6 is attached to the outer periphery of the back plate 5.
(a), heat this to a temperature of about 380°C to remove the organic binder in advance to prevent a large amount of gas from being generated during bonding (b), and then display it on the back plate 5. Construct structure 2 (c). on the other hand,
The glass adhesive 6 is also applied to the flange portion 4 of the glass container 1 (d), and this is heated in the same manner as above to remove the organic binder e), and then the glass container 1 is positioned on the back plate 5. and cover the flange part 4 of the glass container 1.
The flange portion 4 of the glass container 1 is irradiated with infrared rays from above using an infrared lamp 7 to heat and melt the glass adhesive 6.
and the outer periphery of the back plate 5 are hermetically joined and sealed. after that,
An image display device is obtained by evacuating the housing space of the display structure 2, which is sealed with the glass container 1 and the back plate 5.
上記実施例では、赤外線ランプ７から赤外線を照射して
ガラス系接着材を加熱溶融し、封着する例を示したが、
ＹＡＧレーザ等によるレーザ光を照射するようにしても
よ（、レーザ光の方がエネルギー密度を大きくできるの
で、能率良く封着することができる。In the above embodiment, an example was shown in which the glass adhesive is heated and melted by irradiating infrared rays from the infrared lamp 7 and sealed.
It is also possible to irradiate with a laser beam such as a YAG laser (laser beam can have a higher energy density, so sealing can be performed more efficiently).
発明の効果
本発明の画像表示装置の製造方法によれば、以上の説明
から明らかなように、封着部に赤外線やレーザ光を照射
することによって、光が照射されない表示構造体は勿論
のこと、ガラス容器の封着部も余り高温になることなく
、ガラス系接着材を加熱溶融させてガラス容器と背面板
を封着することができるため、表示構造体に熱変形を生
じたり、熱電子発生源にダメージを与える恐れがなく、
しかもガラス容器の局部加熱による割れ発生の恐れもな
く、また封着部に加熱用の光を照射するだけであるので
、加熱炉のような大型の設備が不要となるとともに、局
部的に加熱するだけでエネルギー消費も少ないためラン
ニングコストも低く、低コストで製造することができる
等、大なる効果を発揮する。Effects of the Invention According to the method for manufacturing an image display device of the present invention, as is clear from the above description, by irradiating the sealed portion with infrared rays or laser light, it is possible to create a display structure that is not irradiated with light. Since the glass adhesive can be heated and melted to seal the glass container and the back plate without raising the temperature of the sealing part of the glass container too high, there will be no thermal deformation of the display structure or thermionic There is no risk of damaging the source,
Furthermore, there is no risk of cracks occurring due to local heating of the glass container, and since heating light is only irradiated to the sealed area, large equipment such as a heating furnace is not required, and heating can be done locally. It has great effects, such as low energy consumption and low running costs, and can be manufactured at low cost.
また、ガラス系接着材に照射光を吸収し易い材料を添加
すると、さらに効率的にガラス系接着材を加熱溶融させ
ることができるという効果を発揮する。Furthermore, when a material that easily absorbs irradiated light is added to the glass adhesive, the glass adhesive can be heated and melted more efficiently.
第１図は本発明の一実施例の縦断正面図、第２図は製造
工程の説明図、第３図は画像表示装置の部分構成を示す
斜視図、第４図は従来の加熱炉による封着工程の説明図
、第５図は同加熱温度特性図である。
１・・・・・・ガラス容器、１ａ・・・・・・画像表示
面、２・・・・・・表示構造体、３・・・・・・封着部
、５・・・・・・背面板、・・・・・・ガラス系接着材
、７・・・・・・赤外線ランプ、８・・・反射鏡。Fig. 1 is a longitudinal sectional front view of an embodiment of the present invention, Fig. 2 is an explanatory diagram of the manufacturing process, Fig. 3 is a perspective view showing a partial configuration of an image display device, and Fig. 4 is a conventional sealing using a heating furnace. An explanatory diagram of the deposition process, and FIG. 5 is a diagram of the heating temperature characteristics. DESCRIPTION OF SYMBOLS 1...Glass container, 1a...Image display surface, 2...Display structure, 3...Sealing part, 5... Rear plate,...Glass adhesive, 7...Infrared lamp, 8...Reflector.
Claims (4)
口を閉鎖する背面板とで密封された空間に表示構造体を
収容した画像表示装置の製造方法であって、ガラス容器
と背面板で囲まれた空間に表示構造体を配置した状態で
ガラス容器と背面板の封着部をガラス系接着材を介装し
て合わせ、この封着部に光を照射し、ガラス系接着材を
加熱溶融させて接合することを特徴とする画像表示装置
の製造方法。(1) A method for manufacturing an image display device in which a display structure is housed in a space sealed by a glass container formed with an image display surface and a back plate that closes an opening on the back side of the glass container, the method comprising: With the display structure placed in the enclosed space, the sealed part of the glass container and the back plate are put together with a glass adhesive interposed, and this sealed part is irradiated with light to heat the glass adhesive. A method for manufacturing an image display device, characterized by joining by melting.
置の製造方法。(2) The method for manufacturing an image display device according to claim 1, wherein the irradiation light is infrared rays.
装置の製造方法。(3) The method for manufacturing an image display device according to claim 1, wherein the irradiation light is a laser beam.
加されている請求項１、２又は３記載の画像表示装置の
製造方法。(4) The method for manufacturing an image display device according to claim 1, 2 or 3, wherein a material that easily absorbs irradiated light is added to the glass adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28452688A JPH02129828A (en) | 1988-11-10 | 1988-11-10 | Manufacture of image display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28452688A JPH02129828A (en) | 1988-11-10 | 1988-11-10 | Manufacture of image display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02129828A true JPH02129828A (en) | 1990-05-17 |
Family
ID=17679620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28452688A Pending JPH02129828A (en) | 1988-11-10 | 1988-11-10 | Manufacture of image display |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02129828A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5807154A (en) * | 1995-12-21 | 1998-09-15 | Micron Display Technology, Inc. | Process for aligning and sealing field emission displays |
| JP2002265237A (en) * | 2001-03-07 | 2002-09-18 | Ulvac Japan Ltd | Sealing chamber, panel holding stan and sealing method |
| US6517403B1 (en) * | 1997-10-01 | 2003-02-11 | Anthony Cooper | Visual display |
| US20120244343A1 (en) * | 2011-03-25 | 2012-09-27 | Kurt Stiehl | Bonding structural components for portable electronic devices using thermally activated adhesive |
-
1988
- 1988-11-10 JP JP28452688A patent/JPH02129828A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5807154A (en) * | 1995-12-21 | 1998-09-15 | Micron Display Technology, Inc. | Process for aligning and sealing field emission displays |
| US6036567A (en) * | 1995-12-21 | 2000-03-14 | Micron Technology, Inc. | Process for aligning and sealing components in a display device |
| US6517403B1 (en) * | 1997-10-01 | 2003-02-11 | Anthony Cooper | Visual display |
| JP2002265237A (en) * | 2001-03-07 | 2002-09-18 | Ulvac Japan Ltd | Sealing chamber, panel holding stan and sealing method |
| JP4503196B2 (en) * | 2001-03-07 | 2010-07-14 | 株式会社アルバック | Sealing chamber, panel holder and sealing method |
| US20120244343A1 (en) * | 2011-03-25 | 2012-09-27 | Kurt Stiehl | Bonding structural components for portable electronic devices using thermally activated adhesive |
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