JPH02288052A - Image display device - Google Patents
Image display deviceInfo
- Publication number
- JPH02288052A JPH02288052A JP10866789A JP10866789A JPH02288052A JP H02288052 A JPH02288052 A JP H02288052A JP 10866789 A JP10866789 A JP 10866789A JP 10866789 A JP10866789 A JP 10866789A JP H02288052 A JPH02288052 A JP H02288052A
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- container
- back electrode
- image display
- fixed
- 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
- 229910052751 metal Inorganic materials 0.000 claims description 42
- 239000002184 metal Substances 0.000 claims description 42
- 229910000986 non-evaporable getter Inorganic materials 0.000 claims description 10
- 238000000605 extraction Methods 0.000 claims description 8
- 239000011810 insulating material Substances 0.000 claims description 6
- 238000005219 brazing Methods 0.000 claims description 5
- 239000011521 glass Substances 0.000 claims description 5
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 3
- 238000010894 electron beam technology Methods 0.000 description 17
- 239000000919 ceramic Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- 239000002245 particle Substances 0.000 description 7
- 239000004020 conductor Substances 0.000 description 3
- 230000004913 activation Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000010406 cathode material Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- -1 for example Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (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、映像機器における画像表示装置に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an image display device for video equipment.
従来の技術
従来、カラーテレビジョン画像表示素子とじてはブラウ
ン管が主として用いられているが、ブラウン管では画面
に比して、奥行きが非常に長く、であった、そこで、平
板上の表示素子としてＥＬ表示素子、プラズマ表示素子
、液晶表示素子、等が開発されているが、何れも耀度、
コントラスト、色再現性等性能面で不十分である。そこ
で、ブラウン間並みの高品質の画像を電子ビームを用い
た平板上の装置で表示することを目的として、スクリー
ン上の画面をマトリックス状の区分に隙間なく分割し、
各々の区分毎に電子ビームを偏向走査して蛍光体を発光
させ、全体としてカラーテレビジョン画像を構成する画
像表示装置がある。以下図面を参照しながら、上述した
従来の画像表示装置の一例について説明する。Conventional technology Conventionally, cathode ray tubes have been mainly used as color television image display elements, but the depth of cathode ray tubes is much longer than the screen.Therefore, EL has been used as a display element on a flat panel. Display elements, plasma display elements, liquid crystal display elements, etc. have been developed, but all of them are
Insufficient performance such as contrast and color reproducibility. Therefore, with the aim of displaying a high-quality image comparable to that of Brown on a flat panel device using an electron beam, the screen was divided into matrix-like sections without gaps.
There is an image display device that deflects and scans an electron beam in each section to cause a phosphor to emit light, thereby forming a color television image as a whole. An example of the conventional image display device mentioned above will be described below with reference to the drawings.
第２図は従来の画像表示の構成を示すものである。第２
図に於いて、１は背面電極、２は電子ビーム源としての
ＩＡＰＩ！！極、３は電子ビーム引出し電極、４は信号
電極、５及び６は集束電極、７は水平偏向電極、８は垂
直偏向電極であり、これらの構成部品をガラス容器９と
背面容器１０の中に収納し、容器内を真空としたもので
ある。線陰極２は水平方向に一様に分布する電子流を発
生するように水平方向に架張されており、かかる線陰極
２は適宜間隔を介して垂直方向に複数本（ここでは４本
のみ示している）設けられている。これらの線陰極２は
、例えばタングステン線の表面に酸化物陰極材料が塗着
されて構成される。背面電極ｌは平板状の導電材からな
り、線陰極２に対し平行に設けられている。引出し電極
３は線陰極２を介して背面電極Ｉと対向し、水平方向に
適宜間隔で設けられた貫通孔１１の列を、各線陰極に対
向する水平線上に有する導電板からなる。貫通孔１１は
実施例では円形であるが、楕円または長方形でもよく、
またスリット状のものでもよい、信号電極４は、引出し
電極３の貫通孔１１の各々に相対向する位置に所定間隔
を介して複数個配置された垂直方向に細長い導電板１２
の列からなり、各導電板においては、引出し電極３の貫
通孔１１に相対向する位置に、同様の貫通孔１３を有し
ている。貫通孔１３の形状は楕円または長方形でもよく
、また垂直方向の細長いスリット状のものでもよい、集
束電極５は、信号電極４の貫通孔１３と各々に対向する
位置に貫通孔１４を有する導電板からなる０貫通孔１４
の形状は、円、楕円、スリット状のものでもよい、集束
電極６は、集束電極５の貫通孔１４に相対向する位置に
縦につながったスリット孔１５を有している。スリット
孔１５の形状は、丸穴、楕円、長方形のものでもよい、
水平偏向電極７は、同一平面に適宜間隔を介して互いに
噛み合った２枚の櫛歯状の端部でつながった導電板１６
の及び１７から構成されており、導電板１６．１７の間
につくられた空間１８は、集束電極６の貫通スリット孔
１５と相対向している。垂直偏向電極８は、第２図に示
すごと（端部で連結された導電板１９．２０、すなわち
２枚の櫛歯状の導電板１９．２０を同一平面状で適宜間
隔を介して互いに噛み合わせた構成からなる。スクリー
ン２１は、電子ビームの照射によって発光する蛍光体２
２をガラス容器９の内面に塗布し、その上にメタルバッ
ク層（図示せず）が付加されて構成される。また、前述
した引出し電極３、信号電極４、集束電極５及び６、水
平偏向電極７、垂直偏向電極８は、各々絶縁性の接着材
（図示せず）で接合されており、一体の電極ブロックを
形成している。また前記陰極線２を取り付は部材（図示
せず）を用いて適宜間隔を設けて前記背面電極１に取り
付けたものと前記電極ブロックとを絶縁固定し、一体の
電極ユえばネジ３０などを用いて適宜間隔を設は平行に
固定されている。また、容器９、ｌＯの内部の高真空を
保つために蒸発型ゲッター２８をゲッター取り付は台２
９を介して、前記背面容器１０に取り付けていけられて
いる。FIG. 2 shows the configuration of a conventional image display. Second
In the figure, 1 is the back electrode, and 2 is the IAPI as the electron beam source! ! 3 is an electron beam extraction electrode, 4 is a signal electrode, 5 and 6 are focusing electrodes, 7 is a horizontal deflection electrode, and 8 is a vertical deflection electrode, and these components are placed in a glass container 9 and a rear container 10. It is stored and the inside of the container is evacuated. The line cathodes 2 are stretched in the horizontal direction so as to generate an electron flow that is uniformly distributed in the horizontal direction. ) provided. These wire cathodes 2 are constructed by, for example, coating the surface of a tungsten wire with an oxide cathode material. The back electrode l is made of a flat conductive material and is provided parallel to the line cathode 2. The extraction electrode 3 is made of a conductive plate that faces the back electrode I via the line cathode 2 and has a row of through holes 11 provided at appropriate intervals in the horizontal direction on a horizontal line facing each line cathode. Although the through hole 11 is circular in the embodiment, it may be oval or rectangular.
Further, the signal electrode 4 may be in the form of a slit, and the signal electrode 4 is formed by a plurality of vertically elongated conductive plates 12 disposed at predetermined intervals at positions facing each of the through holes 11 of the extraction electrode 3.
Each conductive plate has a similar through hole 13 at a position opposite to the through hole 11 of the extraction electrode 3. The shape of the through hole 13 may be an ellipse or a rectangle, or it may be in the shape of a vertically elongated slit. 0 through hole 14 consisting of
The shape of the focusing electrode 6 may be a circle, an ellipse, or a slit. The focusing electrode 6 has a vertically connected slit hole 15 at a position opposite to the through hole 14 of the focusing electrode 5. The shape of the slit hole 15 may be round, oval, or rectangular.
The horizontal deflection electrode 7 is made up of two conductive plates 16 that are connected by comb-shaped ends that are interlocked with each other at an appropriate interval on the same plane.
The space 18 created between the conductive plates 16 and 17 faces the through slit hole 15 of the focusing electrode 6. The vertical deflection electrode 8 is constructed by interlocking conductive plates 19 and 20 connected at their ends, that is, two comb-shaped conductive plates 19 and 20 with appropriate spacing in the same plane, as shown in FIG. The screen 21 includes a phosphor 2 that emits light when irradiated with an electron beam.
2 is applied to the inner surface of the glass container 9, and a metal back layer (not shown) is added thereon. Furthermore, the aforementioned extraction electrodes 3, signal electrodes 4, focusing electrodes 5 and 6, horizontal deflection electrodes 7, and vertical deflection electrodes 8 are each bonded with an insulating adhesive (not shown), and are integrated into an integrated electrode block. is formed. The cathode wires 2 are attached to the back electrode 1 at appropriate intervals using a member (not shown), and the electrode block is insulated and fixed to the electrode block. They are fixed parallel to each other at appropriate intervals. In addition, in order to maintain a high vacuum inside the container 9 and lO, an evaporative getter 28 is installed on the stand 2.
It is attached to the rear container 10 via 9.
以上のように構成された画像表示装置について、その動
作を簡単に説明する。The operation of the image display device configured as described above will be briefly described.
ます線陰極２を、電子放出を容易にするためにヒータ電
流を流し加熱する。加熱状態で背面電極ｌ、線陰極２、
引出し電極３に適当な電圧を印加し、線陰極２表面から
シート状電子ビームを放出させる。シート状電子ビーム
は引出し電極３の貫通孔１１によって複数個に分割され
多数の電子ビーム流２３となる。この電子ビーム流２３
は、信号電極４に印加される映像信号に応じて、信号電
極４によりその通過量を各電子ビーム流ごとに調節され
る。次に信号電極４を通過した電子ビームは、集束電極
５．６の貫通孔１４．１５の静電レンズ効果によって集
束、成形された後、水平偏向電橋７の相隣る導電板１６
．１７および垂直偏向電極８の相隣る導電板１９．２０
に与えられる電位差によって水平及び垂直に偏向される
。更にスクリーン２１のメタルバック層には高電圧（例
えばｌ０ＫＶ）が印加されており、電子ビームは高エネ
ルギーに加速されてメタルバックに衝突し、蛍光体２２
を発光させる。The square wire cathode 2 is heated by passing a heater current in order to facilitate electron emission. In the heated state, the back electrode l, the wire cathode 2,
A suitable voltage is applied to the extraction electrode 3 to emit a sheet-like electron beam from the surface of the line cathode 2. The sheet-like electron beam is divided into a plurality of parts by the through hole 11 of the extraction electrode 3, and becomes a large number of electron beam streams 23. This electron beam flow 23
The signal electrode 4 adjusts its passing amount for each electron beam stream in accordance with the video signal applied to the signal electrode 4. Next, the electron beam that has passed through the signal electrode 4 is focused and shaped by the electrostatic lens effect of the through hole 14.15 of the focusing electrode 5.6, and is then focused and shaped by the adjacent conductive plate 1 of the horizontal deflection bridge 7.
．． 17 and adjacent conductive plates 19 and 20 of the vertical deflection electrode 8
is deflected horizontally and vertically by the potential difference applied to the Further, a high voltage (for example, 10 KV) is applied to the metal back layer of the screen 21, and the electron beam is accelerated to high energy and collides with the metal back layer, causing the phosphor 22 to collide with the metal back layer.
to emit light.
テレビジジン画面を縦横にマトリックス状に分割し、小
区分２５の集合体とした時、各小区分２５に対し上述の
ようにして分離された電子ビームを各−本ずつ対応させ
、電子ビームを各小区分２５内のみ偏向、走査すること
によって、全画面をスクリーン２１上に映し出すことが
できる。また各画素に対応したＲＣ，Ｂ映像信号を、信
号１ｉｉｉ４で接合することにより、テレビジョン動画
を再現することができる。When the television digital screen is divided vertically and horizontally into a matrix to form a collection of subsections 25, the electron beams separated as described above are made to correspond to each subsection 25, and the electron beams are divided into each subsection. By deflecting and scanning only within minutes 25, the entire screen can be displayed on the screen 21. Further, by joining the RC and B video signals corresponding to each pixel with the signal 1iii4, a television moving image can be reproduced.
発明が解決しようとする課題
上記のような構成に於いて、常時高品質の画像を得るた
めには、以下のような課題があった。Problems to be Solved by the Invention In the configuration described above, the following problems have been encountered in order to constantly obtain high-quality images.
第１の課題は、本画像表示装置は容器内部を高真空に保
って使用するため、第３図（ａ）に示すように大気圧が
背面容器ｌＯにＣ方向に加わり、背面容器１０は変形す
る。この時固定台２６に背面電極ｌが平面接触して固定
されていると固定台２６が傾くことにより背面電極ｌが
第３図（ａ）のように変形する。The first problem is that since this image display device is used while maintaining the inside of the container at a high vacuum, atmospheric pressure is applied to the rear container 10 in the direction C, as shown in FIG. 3(a), and the rear container 10 is deformed. do. At this time, if the back electrode l is fixed in planar contact with the fixing base 26, the fixing base 26 is tilted and the back electrode l is deformed as shown in FIG. 3(a).
このため各電極（第２図の３．４，５，６，７゜８）を
通過する電子ビーム流（第２図の２３）の軌道が乱され
、高品質の画像が得られない。For this reason, the trajectory of the electron beam flow (23 in FIG. 2) passing through each electrode (3.4, 5, 6, 7° 8 in FIG. 2) is disturbed, making it impossible to obtain a high quality image.
第２の課題は、本画像表示装置はその製作工程中に熱処
理を必要とする。この際、第２図の背面容器ｌＯと背面
電極１には材質の違いから熱膨張に差が生じ、第２図の
ように背面電極ｌを固定台２６に固定すると、背面電極
ｌと背面容器１０は熱応力によって変形する。背面電極
ｌが変形すると前記の理由で高品質の画像が得られない
。The second problem is that the image display device requires heat treatment during its manufacturing process. At this time, there is a difference in thermal expansion between the back container lO and the back electrode 1 shown in FIG. 2 due to the difference in materials. 10 is deformed by thermal stress. If the back electrode l is deformed, a high quality image cannot be obtained for the reasons mentioned above.
第３の課題は、従来の画像表示装置は第２図において容
器内部の電極ユニット２４と画像表示装置外界をｖＡ録
するため、背面電極１の導電性背面容器１０への固定は
例えば固定台２６に絶縁ブツシュ（図示せず）などを取
り付け、背面電極ｌと導電性容器２６が短絡しないよう
、複雑な構造にしなければならなかった。また、容器内
部を高真空に保つため、ガス分子を吸着するゲッター２
８に従来は蒸発型ゲッターが用いられていた。この蒸発
型ゲッターは活性化時に多量のゲッター粒子が周囲に飛
散する。このゲッター粒子が電極ユニット２４やそれに
付随する端子（図示せず）に多量に不着すると絶縁不良
などの不都合が生じる。これを防止するためにゲッター
粒子の飛散を制限する遮蔽壁２７を取り付けなければな
らず、より複雑な構造となって組立工数増加となってい
た。The third problem is that the conventional image display device records the voltage of the electrode unit 24 inside the container and the outside world of the image display device in FIG. An insulating bushing (not shown) or the like had to be attached to the back electrode 1 to prevent a short circuit between the back electrode 1 and the conductive container 26, thereby creating a complicated structure. In addition, in order to maintain a high vacuum inside the container, a getter 2 that adsorbs gas molecules is added.
8, an evaporative getter has conventionally been used. When this evaporative getter is activated, a large amount of getter particles are scattered around. If a large amount of these getter particles adhere to the electrode unit 24 or its accompanying terminal (not shown), problems such as poor insulation will occur. In order to prevent this, it is necessary to install a shielding wall 27 to restrict the scattering of getter particles, resulting in a more complicated structure and an increase in the number of assembly steps.
本発明は上記課題を解決し、高品質の画像を常時安定し
て得ることのできる画像表示装置を提供するものである
。The present invention solves the above problems and provides an image display device that can always stably obtain high-quality images.
課題を解決するための手段
第１の課題を解決するため、本発明は背面電極を固定す
るための固定台に球面部を設け、その球面部で背面電極
を支持することにより、背面容器の変形による背面電極
の変形を防止できるようにした。Means for Solving the Problems In order to solve the first problem, the present invention provides a spherical part on the fixing base for fixing the back electrode, and supports the back electrode with the spherical part, thereby reducing the deformation of the back container. This prevents deformation of the back electrode due to
第２の課題を解決するため、本発明は背面電極を固定す
るために複数個ある固定台中の１個に対してのみ背面電
極を固定し、他の固定台に対しては押え部材で背面電極
を固定台に押え付けて取り付けることにより、背面容器
と背面電極の熱膨張の差による背面電極め変形を防止で
きるようにした。In order to solve the second problem, the present invention fixes the back electrode to only one of a plurality of fixing stands, and uses a presser member to hold the back electrode against the other fixing stands. By pressing and attaching it to a fixed base, it is possible to prevent deformation of the back electrode due to the difference in thermal expansion between the back container and the back electrode.
第３の課題を解決するため、固定台を絶縁性材料で作製
し端面に金属層生成処理を施す、得られた金属層に金属
片をろう付けし、この金属片を背面容器に溶接またはろ
う付けで固定するか、または前記金属層を直接背面容器
にろう付けで固定するか、または前記絶縁性固定台に引
っかかり部を設け、これに金具を引っかけ、この金具を
溶接かろう付けを用いて背面容器に固定することにより
、背面容器に背面電極を絶縁固定できるようにした。In order to solve the third problem, the fixing base is made of an insulating material, the end face is treated with a metal layer, a metal piece is brazed to the obtained metal layer, and this metal piece is welded or brazed to the rear container. Alternatively, the metal layer may be directly fixed to the rear container by brazing, or a hook portion may be provided on the insulating fixing base, a metal fitting may be hooked onto this, and this metal layer may be welded or brazed. By fixing it to the back container, the back electrode can be insulated and fixed to the back container.
また非蒸発型ゲッターを用い、その両端をゲッター取り
付は部材を介して背面容器に取り付けることにより、ゲ
ッタ一部の構造を筒略化した。In addition, by using a non-evaporable getter and attaching both ends of the getter to the rear container via a member, the structure of a part of the getter was simplified.
作用
第１の発明による作用は、上記のように固定台に設けた
球面部で背面電極を１点支持することにより固定台の傾
きによる背面電極の変形が防止でき安定して高品質の画
像を提供できる。Effects The effect of the first invention is that by supporting the back electrode at one point with the spherical part provided on the fixing base as described above, deformation of the back electrode due to the tilting of the fixing base can be prevented and a stable high-quality image can be obtained. Can be provided.
第２の発明の作用は、上記のように背面電極は複数個の
固定台中の一個にのみ固定され、他の固定台には押え部
材で固定台に押し付けられているだけなので、加熱され
ると固定されている一箇所は動かないが、他の箇所では
背面電極と固定台の間に滑りが生じ、熱膨張差が吸収さ
れる。従って背面電極の変形は防止でき安定して高品質
の画像を提供できる。The effect of the second invention is that, as described above, the back electrode is fixed to only one of the plurality of fixing bases, and the other fixing bases are only pressed against the fixing base by pressing members, so that when heated, One fixed location does not move, but at other locations, slippage occurs between the back electrode and the fixed base, absorbing the difference in thermal expansion. Therefore, deformation of the back electrode can be prevented and a high quality image can be stably provided.
第３の発明の作用は、上記のような固定台に背面電極を
固定することにより固定台自身に絶縁部材としての機能
と機構部品の機能の両方を持たせることができ、部品点
数の削減とこれに伴う組立工数の削減ができ、組立の自
動化が容易になった。The effect of the third invention is that by fixing the back electrode to the fixing base as described above, the fixing base itself can have both the function of an insulating member and the function of a mechanical component, and the number of parts can be reduced. This has resulted in a reduction in assembly man-hours and has made it easier to automate assembly.
また非蒸発ゲッターを上記のように取り付けに用いるこ
とにより、従来のようなゲッターの活性化時にゲッター
粒子の飛散制限のための遮蔽壁が不必要で、このことで
も部品点数の削減とこれに伴う組立工数の削減ができ組
立の自動化が容易になった。In addition, by using a non-evaporable getter for installation as described above, there is no need for a conventional shielding wall to limit the scattering of getter particles when the getter is activated, which also reduces the number of parts and Assembly man-hours can be reduced and assembly automation has become easier.
実施例
以下に本発明の第一の目的である背面容器の真空変形に
伴う背面電極の変形の防止と、第二の目的である背面容
器と背面電極との熱膨張の差による背面電極の変形の防
止と、第三の目的である背面電極の背面容器への絶縁固
定機構の簡素化及びゲッター取り付は機構の簡素化を実
現する一実施例の構成を第１図に示す。３９は背面電極
、４０は背面容器、３１．４１は背面電極固定台、３４
は背面電極３９を固定台４１に押し付ける押えバネ、３
５は背面電極３９を固定台３１に固定するリベット、３
２．３３はそれぞれ固定台４１．３１に生成された金属
層にろう付けされた金属片、３６イは固定台４１に設け
られた球面部、３６０は固定台３１に設けられた曲面部
、３８は非蒸発型ゲッター、３７はゲッター取り付は部
材である。Examples Below, the first purpose of the present invention is to prevent deformation of the back electrode due to vacuum deformation of the back container, and the second purpose is to prevent deformation of the back electrode due to the difference in thermal expansion between the back container and the back electrode. FIG. 1 shows the structure of an embodiment that achieves the prevention of the above problems and the third objective of simplifying the insulating fixing mechanism of the back electrode to the back container and the simplification of the getter attachment mechanism. 39 is the back electrode, 40 is the back container, 31.41 is the back electrode fixing stand, 34
3 is a presser spring that presses the back electrode 39 against the fixing base 41;
5 is a rivet for fixing the back electrode 39 to the fixing base 31;
2.33 is a metal piece brazed to the metal layer generated on the fixing base 41 and 31, respectively, 36a is a spherical part provided on the fixing base 41, 360 is a curved part provided on the fixing base 31, 38 Reference numeral 37 indicates a non-evaporable getter, and 37 indicates a member for attaching the getter.
以下に本実施例の第１の目的達成のための働きについて
説明する。背面電極３９は３つの固定台４１に設けられ
た球面３６イにより点接触で支持され、固定第３１に対
しても曲面３６０により点接触に近い状態で支持され取
り付けられている。第３図（ａ）。The operation of this embodiment to achieve the first objective will be described below. The back electrode 39 is supported in point contact by the spherical surfaces 36a provided on the three fixed bases 41, and is also supported and attached to the fixed base 31 in a state close to point contact by the curved surface 360. Figure 3(a).
Φ）はそれぞれ背面電極１１３９が取り付けられた背面
容器ｌ０１４０に大気圧がＣ，Ｄ方向に加わったときの
背面容器１Ｏ１４０の変形による背面電極１１３９への
影響を模式的に示している。第３図（ａ）は従来の取り
付は方で背面型ｉｔを背面容器ｌＯに取り付けたものに
Ｃ方向に大気圧が加わった状態を示し、第３図（ｂ）は
本発明による上記の取り付は方で背面電極３９を背面容
器４０に取り付けられたものにＤ方向に大気圧が加わっ
た状態を示している。第３図（ａ）、（６）に示すよう
に、大気圧がＣ，Ｄ方向に加わって背面容器１０．４０
が変形すると固定台２６．４１が傾く。しかし第３図伽
）の場合、背面電極３９は固定台４１に設けられた球面
（第１図の３６イ）上の一点で支持されているため、固
定台４１が傾くと背面電極３９との接触点が球面（第１
図の３６イ）上を移動するだけで背面電極３９に対して
変形力が加わらず背面電極３９は変形しない。Φ) schematically shows the influence on the back electrode 1139 due to the deformation of the back container 10140 when atmospheric pressure is applied in directions C and D to the back container 10140 to which the back electrode 1139 is attached. FIG. 3(a) shows a state in which atmospheric pressure is applied in the C direction to a back type IT installed in the back container lO using the conventional installation method, and FIG. 3(b) shows a state in which atmospheric pressure is applied in the direction C. The attached figure shows a state in which the back electrode 39 is attached to the back container 40 and atmospheric pressure is applied in the D direction. As shown in Figures 3(a) and (6), atmospheric pressure is applied in the C and D directions and the rear container 10.40
When the fixed base 26.41 is deformed, the fixed base 26.41 tilts. However, in the case of Fig. 3 (a), the back electrode 39 is supported at one point on the spherical surface (36a in Fig. 1) provided on the fixed base 41, so when the fixed base 41 is tilted, the back electrode 39 The contact point is a spherical surface (first
36a) in the figure, no deforming force is applied to the back electrode 39, and the back electrode 39 is not deformed.
次に、本実施例の第２の目的達成のための働きについて
説明する。第１図に於いて、背面電極３９は背面容器４
０に３つの固定第４１と１つの固定台３１を介して取り
付けられている。背面電極３９は固定台３１には例えば
リッペト３５を用いて固定され、固定台４１には例えば
押さえバネ３４で固定台４１に押し付けられて取り付け
られている。このように組み立てられた背面電極３９と
背面容器４０を加熱した場合、両者は材質が異なるため
熱膨張係数の違いにより延び代に差が生じる。しかし背
面電極３９は固足代３１の点では固定されているのでこ
の点は背面容器４０に対して相対位置は変化しないが、
他の３つの固定化４１では背面電極３９の面方向の自由
度は保たれているので、この３点で背面電極３９と固定
台４１との間でＡ方向やＢ方向などに滑りが生じて熱膨
張による延び代の差を吸収し背面電極３９に対して変形
力は加わらないので、背面電極３９は変形しない。Next, the operation for achieving the second objective of this embodiment will be explained. In FIG. 1, the back electrode 39 is connected to the back container 4.
0 via three fixed bases 41 and one fixed base 31. The back electrode 39 is fixed to the fixed base 31 using, for example, a lippet 35, and is attached to the fixed base 41 by being pressed against the fixed base 41 using, for example, a presser spring 34. When the back electrode 39 and the back container 40 assembled in this way are heated, since they are made of different materials, there will be a difference in elongation due to the difference in coefficient of thermal expansion. However, since the back electrode 39 is fixed at the fixed foot length 31, the relative position of this point with respect to the back container 40 does not change;
Since the degree of freedom of the back electrode 39 in the plane direction is maintained at the other three fixing points 41, slipping in the A direction, the B direction, etc. occurs between the back electrode 39 and the fixing base 41 at these three points. Since the difference in elongation due to thermal expansion is absorbed and no deforming force is applied to the back electrode 39, the back electrode 39 does not deform.
本実施例の第３図の目的達成のための働きについて説明
する。第１図において背面容器４０に導電性の材質を用
いていた場合、背面電極３９と背面容器４０は電気的に
絶縁された方が望ましい。このため、固定台４１．３１
を例えばセラミックで作製し、その端面に金属層生成処
理をする。ここで得られた金属層（図示せず）に金属片
３２．３３をろう付けし、この金属片３２．３３を背面
容器４０に溶接し固定する。このような固定台３１．４
１に背面電極３９を取り付ければ、固定台にセラミック
などで作られた絶縁ブツシュ等をつけて絶縁する必要が
なく、部品点数の削減による組立工数の削減ができる。The operation of this embodiment to achieve the purpose shown in FIG. 3 will be explained. In FIG. 1, when the back container 40 is made of a conductive material, it is desirable that the back electrode 39 and the back container 40 be electrically insulated. For this reason, the fixed base 41.31
is made of ceramic, for example, and a metal layer is formed on its end face. A metal piece 32.33 is brazed to the metal layer (not shown) obtained here, and this metal piece 32.33 is welded and fixed to the rear container 40. Such a fixed base 31.4
If the back electrode 39 is attached to 1, there is no need to attach an insulating bushing made of ceramic or the like to the fixing base for insulation, and the number of assembly steps can be reduced by reducing the number of parts.
次に第４図（ａ）、 （ｂ）、 （Ｃ）に固定台４１の
背面容器４０への固定方法の例を示す。第４図（ａ）に
おいて、４４は固定台のセラミック部、４２は金属層、
４３は金属片、４０は背面容器である。第４図（ｂ）に
於いて、４６は固定台のセラミック部、４５は金属層、
４０は背面容器である。また、第４図（Ｃ）において、
４９は固定台のセラミック部、４８は固定台秤え金具、
４７は引っかかり部、４０は背面容器である。Next, an example of a method for fixing the fixing base 41 to the rear container 40 is shown in FIGS. 4(a), 4(b), and 4(c). In FIG. 4(a), 44 is the ceramic part of the fixing base, 42 is the metal layer,
43 is a metal piece, and 40 is a rear container. In FIG. 4(b), 46 is the ceramic part of the fixing base, 45 is the metal layer,
40 is a rear container. Also, in FIG. 4(C),
49 is the ceramic part of the fixed base, 48 is the fixed base scale fitting,
47 is a hook portion, and 40 is a rear container.
第４図（ａ）の方法は、セラミック部４４の端面には金
属層生成処理によって金属層４２が設けてあり、この金
属層４２にろう付けされた金属片４３を背面容器４０に
溶接またはろう付けにより固定するものである。第４図
ら）の方法は、（ａ）と同様にセラミック部４５の端面
に金属層生成処理を行って得られた金属層４５と背面容
器４０を直接ろう付けすることによって固定するもので
ある。第４図（Ｃ）の方法は、セラミック部４９に引っ
かかり部４７を設け、これに固定台秤え金具４８を引っ
かけ、この固定台秤え金具４８をろう付けまたは溶接で
背面容器４０に固定するものである０例えばこのような
方法を用いることによりセラミック部品を導電性材料の
背面容器に固定することができる。ここで第４図（ａ）
、 （ｂ）、 （Ｃ）では第１図の固定第０を想定して
説明をしたが、ここに示した固定方法は他の形のセラミ
ック部材にも適用でき、固定台３１に対しても全く同じ
考え方で背面容器４０に固定できる。In the method shown in FIG. 4(a), a metal layer 42 is provided on the end face of the ceramic part 44 by a metal layer generation process, and a metal piece 43 brazed to the metal layer 42 is welded or brazed to the rear container 40. It is fixed by attaching it. In the method shown in FIGS. 4A and 4B, the metal layer 45 obtained by subjecting the end face of the ceramic portion 45 to the metal layer forming treatment is directly brazed to the rear container 40 to fix it. The method shown in FIG. 4(C) is to provide a hook 47 on the ceramic part 49, hook the fixed base scale fitting 48 onto this, and fix the fixed base scale bracket 48 to the rear container 40 by brazing or welding. For example, by using such a method a ceramic component can be secured to a backside container of electrically conductive material. Here, Fig. 4(a)
, (b), and (C), the explanation was given assuming the fixation number 0 in FIG. It can be fixed to the rear container 40 using exactly the same idea.
次に、非蒸発型ゲッター３８の取り付けに関して説明す
る。第１図に示したように、非蒸発型ゲッター３８は従
来用いられていた蒸発型ゲッターのように活性化の際に
ゲッター粒子が周囲に飛散するというようなことがない
、従ってゲッター粒子の付着による各電極（第２図の３
．４，５，６．７８）間の絶縁不良が生じず、ゲッター
粒子飛散制限のための遮蔽壁（第２図２７）は不必要で
、非蒸発型ゲッター（第１図３８）は両端を取り付は部
材（第１図３７）に取り付け、活性化時に周囲と接触し
ないように保持してやるだけでよい。ゲッター（第１図
３８）及びゲッター取り付は金具（第１図３７）をこの
様な構造にすることで部品点数の削減による組立工数削
減ができる。Next, attachment of the non-evaporable getter 38 will be explained. As shown in FIG. 1, the non-evaporable getter 38 does not cause getter particles to scatter to the surroundings during activation unlike conventionally used evaporative getters. Each electrode (3 in Figure 2)
．． 4, 5, 6.78), there is no need for a shielding wall (Fig. 2, 27) to limit scattering of getter particles, and the non-evaporable getter (Fig. 1, 38) has both ends removed. It is only necessary to attach it to a member (Fig. 1, 37) and hold it so as not to come into contact with the surroundings during activation. By using the structure of the getter (FIG. 1, 38) and the metal fittings (FIG. 1, 37) for attaching the getter, the number of parts and the number of assembly steps can be reduced.
発明の効果
第１の発明の効果は、固定台に球面部を設け、この球面
で背面電極を点接触により支持することで、背面容器が
変形し固定台が傾いた場合でも背面電極には変形力が加
わらず、背面電極は変形しないので、電子ビーム流の軌
道は一定に保たれ安定して高画質が得られる。Effects of the Invention The first effect of the invention is that by providing a spherical part on the fixing base and supporting the back electrode by point contact with this spherical surface, even if the back container is deformed and the fixing base is tilted, the back electrode will not be deformed. Since no force is applied and the back electrode is not deformed, the trajectory of the electron beam flow remains constant, resulting in stable high image quality.
第２の発明の効果は、複数個ある中の１つの固定台にの
み背面電極を固定し、他の固定台には押え部材で背面電
極を押え付けるのみにすることで、背面電極と背面容器
の熱膨張の差はこの押し付けられている点での滑りによ
って吸収され、背面電極へ変形力が加わらない、従って
、加熱しても背面電極の変形が生じないので電子ビーム
流の軌道は一定に保たれ、安定して高画質が得られる。The effect of the second invention is that the back electrode is fixed only to one of the plurality of fixing bases, and the back electrode is only pressed down by a presser member to the other fixing bases. The difference in thermal expansion of is absorbed by the slippage at this pressed point, and no deformation force is applied to the back electrode.Therefore, even if heated, the back electrode does not deform, so the trajectory of the electron beam flow remains constant. is maintained, and stable high image quality can be obtained.
第３の発明の効果は、絶縁性材料で作られた固定台の端
部に金属層生成処理をし、得られた金属層に金属片をろ
う付けし、前記金属片と背面容器を溶接によって固定す
るか、または前記金属層と背面容器をろう付けにより固
定するか、または絶縁材材製の固定台に引っかかり部を
設け、前記引っかかり部に金具を引っかけ、前記金具を
背面容器に溶接またはろう付けで固定することにより、
背面電極と背面容器の絶縁のために別の絶縁部品を取り
付ける必要がなく、部品点数削減による工数削減ができ
る。また、非蒸発型ゲッターの両端をゲンター取り付は
部材で保持し背面容器に取り付けて用いることで、ゲッ
ター粒子飛散制限のための遮蔽壁を取り付ける必要がな
く、このことからも部品点数削減による工数削減ができ
る。The effect of the third invention is that a metal layer is formed on the end of the fixed base made of an insulating material, a metal piece is brazed to the obtained metal layer, and the metal piece and the rear container are welded together. Alternatively, the metal layer and the back container may be fixed by brazing, or a hook portion may be provided on a fixing base made of an insulating material, a metal fitting may be hooked to the hook portion, and the metal layer may be welded or brazed to the back container. By fixing the
There is no need to attach a separate insulating part to insulate the back electrode and the back container, and the number of parts can be reduced, thereby reducing man-hours. In addition, by holding both ends of the non-evaporable getter with a member and attaching it to the rear container, there is no need to install a shielding wall to limit the scattering of getter particles, which also reduces the number of parts and reduces the number of man-hours. It can be reduced.
第１図は本発明の一実施例における画像表示装置の分解
斜視図、第２図は従来の画像表示装置の構成を示す部分
分解斜視図、第３図（ａ）は従来方法により背面電極を
取り付けた背面容器が大気圧で変形した場合の模式図、
第３図［有］）は本発明による方法によって背面電極を
取り付けた背面容器が大気圧で変形した場合の模式図、
第４図（ａ）、Φ）、（Ｃ）は絶縁性材料製の固定台の
背面容器に対する固定方法を示す正面断面図である。
３１、４１・・・・・・固定台、３２．３３・・・・・
・金属層、３４・・・・・・押えバネ、３５・・・・・
・リソヘト、３６イ・・・・・・球面部、３６０・・・
・・・曲面部、３７・・・・・・ゲ）ター取り付は部材
、３８・・・・・・非蒸発型ゲッター、３９・・・・・
・背面電極、４０・・・・・・背面容器。
代理人の氏名 弁理士 粟野重孝 はか１名３１、４１
−−− ｖｓ友臼
３２．３３−−一血Ｊ乃
３ｔロ一−−凹面１Ｔ
３８−７１−泗１ト型ゲ、Ｖダー
必−一一賃ｆ７ｇ鳳FIG. 1 is an exploded perspective view of an image display device according to an embodiment of the present invention, FIG. 2 is a partially exploded perspective view showing the configuration of a conventional image display device, and FIG. 3(a) is a back electrode formed by a conventional method. Schematic diagram of the attached rear container deformed by atmospheric pressure,
FIG. 3 [present] is a schematic diagram of the case where the back container to which the back electrode is attached is deformed under atmospheric pressure by the method according to the present invention;
FIGS. 4(a), Φ), and (C) are front sectional views showing a method of fixing a fixing base made of an insulating material to a rear container. 31, 41...Fixed stand, 32.33...
・Metal layer, 34... Presser spring, 35...
・Risoheto, 36i... Spherical part, 360...
...Curved surface part, 37...Geter mounting member, 38...Non-evaporable getter, 39...
- Back electrode, 40... Back container. Name of agent: Patent attorney Shigetaka Awano Haka 1 person 31, 41
--- vs Yuusu 32.33--Ichiketsu Jno 3t Roichi--Concave 1T 38-71-Shi 1 To type ge, V Da Netsu-11 Ren f7g Otori
Claims (3)
前面ガラス容器と対向する背面容器と、前記背面容器と
前面ガラス容器によって挟まれた空間に於いて、１枚の
導電板からなる背面電極、複数本の線陰極、一枚もしく
は複数の導電板からなる引き出し電極および信号電極お
よび集束電極および水平偏向電極および垂直偏向電極を
備えた画像表示装置に於いて、背面容器に背面電極を取
り付けるための固定台に球面部を設け、この球面部で背
面電極を支持し取り付けることを特徴とする画像表示装
置。(1) A front glass container whose inner surface is coated with phosphor, a back container facing the front glass container, and a back surface made of a single conductive plate in the space sandwiched between the back container and the front glass container. In an image display device equipped with an electrode, a plurality of wire cathodes, an extraction electrode consisting of one or more conductive plates, a signal electrode, a focusing electrode, a horizontal deflection electrode, and a vertical deflection electrode, the back electrode is attached to the back container. An image display device characterized in that a fixing base for the display is provided with a spherical part, and a back electrode is supported and attached to the spherical part.
面電極を固定台に取り付ける際、複数個の前記固定台中
の１個に対してのみ背面電極を固定し、他の固定台に対
しては、押さえ部材で背面電極を前記固定台に押しつけ
て取り付けることを特徴とする画像表示装置。(2) In the image display device according to claim (1), when attaching the back electrode to the fixing base, the back electrode is fixed only to one of the plurality of fixing bases, and the other fixing base An image display device characterized in that the back electrode is attached by pressing it against the fixing base using a pressing member.
電性の背面容器に背面電極を取り付けるための絶縁性材
料で作られた固定台の端部に金属層生成処理をし、得ら
れた金属層に金属片をろう付けし、前記金属片と背面容
器を溶接によって固定するか、または前記金属層と背面
容器をろう付けにより固定するか、または絶縁材料製の
固定台に引っかかり部を設け、前記ひっかかり部に金具
をひっかけ、前記金具を背面容器に溶接またはろう付け
で固定することを特徴とし、また非蒸発型ゲッターを用
い、前記非蒸発型ゲッターの両端を取り付け部材に架張
して取り付けることを特徴とする画像表示装置。(3) In the image display device according to claim (1), a metal layer is formed on the end of the fixing base made of an insulating material for attaching the back electrode to the conductive back container, A metal piece is brazed to the obtained metal layer, and the metal piece and the back container are fixed by welding, or the metal layer and the back container are fixed by brazing, or hooked on a fixing base made of an insulating material. The feature is that a metal fitting is hooked on the hook portion, and the metal fitting is fixed to the rear container by welding or brazing, and a non-evaporable getter is used, and both ends of the non-evaporable getter are hung on the mounting member. An image display device characterized in that it can be mounted by stretching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10866789A JPH02288052A (en) | 1989-04-26 | 1989-04-26 | Image display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10866789A JPH02288052A (en) | 1989-04-26 | 1989-04-26 | Image display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02288052A true JPH02288052A (en) | 1990-11-28 |
Family
ID=14490628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10866789A Pending JPH02288052A (en) | 1989-04-26 | 1989-04-26 | Image display device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02288052A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999033083A1 (en) * | 1997-12-22 | 1999-07-01 | Matsushita Electronics Corporation | Flat display |
| WO1999034393A1 (en) * | 1997-12-26 | 1999-07-08 | Matsushita Electronics Corporation | Flat image display |
| US6239544B1 (en) | 1998-04-28 | 2001-05-29 | Matsushita Electronics Corporation | Flat-type image display apparatus with insulating positioning members |
| US6320310B1 (en) | 1997-09-19 | 2001-11-20 | Matsushita Electronics Corporation | Image display apparatus |
| US6630782B1 (en) | 1997-12-01 | 2003-10-07 | Matsushita Electric Industrial Co., Ltd. | Image display apparatus having electrodes comprised of a frame and wires |
| JP2004060707A (en) * | 2002-07-25 | 2004-02-26 | Aichi Mach Ind Co Ltd | Manufacturing method for transmission gear |
-
1989
- 1989-04-26 JP JP10866789A patent/JPH02288052A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6320310B1 (en) | 1997-09-19 | 2001-11-20 | Matsushita Electronics Corporation | Image display apparatus |
| US6630782B1 (en) | 1997-12-01 | 2003-10-07 | Matsushita Electric Industrial Co., Ltd. | Image display apparatus having electrodes comprised of a frame and wires |
| WO1999033083A1 (en) * | 1997-12-22 | 1999-07-01 | Matsushita Electronics Corporation | Flat display |
| US6278235B1 (en) | 1997-12-22 | 2001-08-21 | Matsushita Electronics Corporation | Flat-type display apparatus with front case to which grid frame with extended electrodes fixed thereto is attached |
| WO1999034393A1 (en) * | 1997-12-26 | 1999-07-08 | Matsushita Electronics Corporation | Flat image display |
| US6285121B1 (en) | 1997-12-26 | 2001-09-04 | Matsushita Electric Industrial Co., Ltd. | Flat image display |
| US6239544B1 (en) | 1998-04-28 | 2001-05-29 | Matsushita Electronics Corporation | Flat-type image display apparatus with insulating positioning members |
| JP2004060707A (en) * | 2002-07-25 | 2004-02-26 | Aichi Mach Ind Co Ltd | Manufacturing method for transmission gear |
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