JPH0349136A - Image display device - Google Patents
Image display deviceInfo
- Publication number
- JPH0349136A JPH0349136A JP18550889A JP18550889A JPH0349136A JP H0349136 A JPH0349136 A JP H0349136A JP 18550889 A JP18550889 A JP 18550889A JP 18550889 A JP18550889 A JP 18550889A JP H0349136 A JPH0349136 A JP H0349136A
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- metal plate
- bar
- image display
- display device
- 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
- 230000001105 regulatory effect Effects 0.000 claims abstract description 32
- 229910052751 metal Inorganic materials 0.000 claims abstract description 25
- 239000002184 metal Substances 0.000 claims abstract description 25
- 238000000605 extraction Methods 0.000 claims description 7
- 239000011521 glass Substances 0.000 claims description 5
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 4
- 230000002265 prevention Effects 0.000 claims 1
- 238000010894 electron beam technology Methods 0.000 description 13
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000010406 cathode material Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Electrodes 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しては、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、薄型テレビジョン受像
機を製作することは不可能であった。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、何れも輝度、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
ン菅笠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を
我々は提案した。Conventional technology Conventionally, cathode ray tubes have been mainly used as color television image display elements, but cathode ray tubes have a much longer depth than the screen, making it impossible to manufacture flat-screen television receivers. Ta. Therefore, EL display elements, plasma display elements, liquid crystal display elements, and the like have been developed as display elements on a flat panel, but all of them are insufficient in terms of performance such as brightness, contrast, and color reproducibility. Therefore, with the aim of displaying high-quality images of Brown Sugagasa on a flat panel device using electron beams, the screen was divided into matrix-like sections without gaps, and the electron beam was applied to each section. We have proposed an image display device that makes a phosphor emit light through deflection scanning, and forms a color television image as a whole.
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。An example of the conventional image display device mentioned above will be described below with reference to the drawings.
第2図は、従来の画像表示装置の構成を示すものである
。第2図において1は背面電極、2は電子ビーム源とし
ての線陰極、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9,10
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2イ〜2二の4木の
みに示している)設けられている。これらの線陰極は、
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1は平板状の導電材からなり
、線陰極2イ〜2二に対し平行に設けられている。引出
し電極3は線陰極2イ〜2二を介して背面電極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。FIG. 2 shows the configuration of a conventional image display device. In Figure 2, 1 is a back electrode, 2 is a line cathode as an 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. Yes, these components are placed in glass containers 9, 10.
It is stored in a container and the inside of the container is evacuated. line cathode 2
is stretched in the horizontal direction so as to generate an electron flow uniformly distributed in the horizontal direction, and a plurality of wire cathodes 2 (herein, 2-2 to 2-4) are arranged vertically at appropriate intervals. (shown only on trees). These line cathodes are
For example, it is constructed by coating the surface of a tungsten wire with an oxide cathode material. The back electrode 1 is made of a flat conductive material and is provided in parallel to the line cathodes 2a-22. The extraction electrode 3 is made of a conductive plate that faces the back electrode I via the line cathodes 2a-22, and has a row of through holes 11 provided at appropriate intervals in the horizontal direction on a horizontal line facing each line cathode.
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における貫通孔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vi、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I3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jf
fi孔13と各々に対向する位置に貫通孔I4を有する
導電板からなる。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
I5を有している。スリット孔15の形状は、丸穴、楕
円、長方形状のものでもよい。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m歯状
の端部でつながった導電板16及び17から構成されて
おり導電板16. +7の間に作られた空間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図に示すごとく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19.2
0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2】は、電子ビームの照射に
よって発光する蛍光体22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@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、各々絶縁性の接着剤(ここでは図示せず)で接合さ
れており、一体の電極ブロック24を形成している。Although the through hole 11 is circular in the embodiment, it may be oval or rectangular, or may be slit-shaped. The signal electrode 4 consists of a row of vertically elongated conductive electrodes vi, 12 arranged at predetermined intervals in positions facing each of the through holes 11 in the extraction electrode 3, and in each conductive plate, an extraction electrode A similar through hole I3 is provided at a position opposite to the through hole 11 of No. 3. The shape of the through hole 13 may be an ellipse or a rectangle, or may be a vertically elongated slit. The focusing electrode 5 extends through the signal electrode 4
It is made of a conductive plate having through holes I4 at positions facing each of the fi holes 13. The shape of the through hole 14 may be a circle, an ellipse, or a slit. The focusing electrode 6 has a vertically connected slit hole I5 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 composed of two conductive plates 16 and 17 connected by m-toothed ends that are interlocked with each other on the same plane with an appropriate interval between the conductive plates 16. The space 18 created between +7 faces the through slit hole 15 of the focusing electrode 6. The vertical deflection electrode 8 includes two conductive plates 19.20 connected at their ends, ie, two comb-shaped conductive plates 19.2, as shown in FIG.
0 are arranged on the same plane and are interlocked with each other at appropriate intervals. The screen 2 is constructed by coating the inner surface of a glass container 9 with a phosphor 22 that emits light when irradiated with an electron beam, and adding a metal back layer (not shown) thereon. In addition, the aforementioned drawer@pole 3, signal electrode 4
, focusing electrodes 5 and 6, horizontal deflection electrode 7, vertical deflection electrode 8
are each bonded with an insulating adhesive (not shown here) to form an integrated electrode block 24.
以上のように構成された画像表示装置について、その動
作を藺草に説明する。The operation of the image display device configured as described above will be explained in detail.
先ず、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11.線陰極2
、引出し電極3に適当な電圧を印加し、線陰極2の表面
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1■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により通過量を各電子ビーム流個別に調節され
る。First, a heater current is applied to the wire cathode 2 to heat it to facilitate electron emission. Back electrode 11. in heated state. line cathode 2
, an appropriate voltage is applied to the extraction electrode 3, and a sheet-like electron beam is emitted from the surface of the line cathode 2. The sheet-like electron beam is divided into a plurality of parts by the through hole 1 of the extraction electrode 3, and becomes a large number of electron beam streams 23. The amount of passage of each electron beam stream 23 is individually adjusted by the signal electrode 4 in accordance with the video signal applied to the signal electrode 4.
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、
形成された後、水平偏向電極7の相隣る導電板16.1
7及び垂直偏向電極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I
CIKV)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。Next, the electron beam that has passed through the signal electrode 4 is directed to the focusing electrode 5.
Focusing by the electrostatic lens effect of the through holes 14 and 15 of 6,
After being formed, the adjacent conductive plates 16.1 of the horizontal deflection electrode 7
It is deflected horizontally and vertically by the potential difference applied to adjacent conductive plates 19 and 20 of vertical deflection electrode 7 and vertical deflection electrode 8 . Furthermore, the metal back layer of the screen 21 is applied with a high voltage (for example, I
CIKV) is applied, and the electron beam is accelerated to high energy and collides with the metal back, causing the phosphor 22 to emit light.
上述のようにして分離された電子ビームを各1本ずつ対
応させ、電子ビームを各小区分内のみ偏向、走査するこ
とによって、全画面をスクリーン上に映し出すことがで
きる。また各画素に対応したRGB映像信号を信号電極
4で制御することにより、テレビジョン動画を再現する
ことができる。By associating the electron beams separated as described above one by one and deflecting and scanning the electron beams only within each subdivision, the entire image can be displayed on the screen. Furthermore, by controlling RGB video signals corresponding to each pixel using the signal electrodes 4, television moving images 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おいて、常時高品質の画像を得るた
めには、次のような課題があった。Problems to be Solved by the Invention In the configuration as described above, the following problems have been encountered in order to constantly obtain high-quality images.
第3図に示す様に、線陰極2は直径数十μmの細い線材
で、両端とも(片側した図示せず)高さ規制バー33で
高さを規制し、Y方向位置決め枠体34でY方向の位置
決めを行っている。更に絶縁ワイヤー31で外部からの
振動により線陰極2が振動する事を防止している。As shown in FIG. 3, the wire cathode 2 is a thin wire with a diameter of several tens of μm, and its height is regulated by height regulating bars 33 at both ends (one side is not shown), and the Y direction positioning frame 34 is used to control the height of the wire cathode 2. The direction is being determined. Furthermore, the insulated wire 31 prevents the wire cathode 2 from vibrating due to external vibrations.
ここで高さ規制バー33と絶縁ワイヤー規制金属板32
はそれぞれに背面電極lに対して数十μmの単位交差で
取付固定されており、且つ高さ規制バー33と絶縁ワイ
ヤー規制金属板32の相互位置関係も数十μmの単位交
差が要求される。ここで、高さ規制バー33と絶縁ワイ
ヤー規制金属板32の取付固定には、それぞれに取付治
具が用いて行なわれており、そのため取付値1精度の確
保が困難で且つ、組立工数も大巾にかかり安定した高品
質で安価な画像表示装置を得ることが出来ないものであ
った。Here, the height regulation bar 33 and the insulated wire regulation metal plate 32
are respectively attached and fixed to the back electrode l with a unit intersection of several tens of μm, and the mutual positional relationship between the height regulating bar 33 and the insulated wire regulating metal plate 32 is also required to have a unit intersection of several tens of μm. . Here, the height regulating bar 33 and the insulated wire regulating metal plate 32 are mounted and fixed using respective mounting jigs, which makes it difficult to ensure a mounting value of 1 accuracy and requires a large amount of assembly man-hours. However, it has been impossible to obtain a stable, high-quality, and inexpensive image display device.
本発明は上記課題に鑑み、安定した高品質で安価な画像
表示装置を得ることのできる手段を提供するものである
。In view of the above problems, the present invention provides means for obtaining a stable, high-quality, and inexpensive image display device.
課題を解決するための手段
上記課題を解決するために本発明は、高さ規制バーと絶
縁ワイヤー規制金属板とを一体化し、高さ規制バーと絶
縁ワイヤー規制金属板との相互位置関係を確保するとと
もに、組立工数を削減出来るようにしたものである。Means for Solving the Problems In order to solve the above problems, the present invention integrates a height regulating bar and an insulated wire regulating metal plate to ensure a mutual positional relationship between the height regulating bar and the insulated wire regulating metal plate. At the same time, the number of assembly steps can be reduced.
作用
本発明の作用は、上記したように高さ規制バーと絶縁ワ
イヤー規制金属板とを一体化する事により、高さ規制バ
ーと絶縁ワイヤー規制金属板との相互位置関係は、部品
寸法精度で決まり、組立寸法精度には左右されなくなり
容易に組立精度を確保出来るようになり、また背面電極
への取付固定は一度の治具合せにて完了出来る為、組立
工数も削減出来るようになり、安定した高品質で安価な
画像表示装置を提供するものである。Function The function of the present invention is that, as described above, by integrating the height regulating bar and the insulated wire regulating metal plate, the mutual positional relationship between the height regulating bar and the insulated wire regulating metal plate can be maintained with component dimensional accuracy. It is now possible to easily ensure assembly accuracy, as it is no longer affected by assembly dimensional accuracy, and mounting and fixing to the back electrode can be completed with one jig adjustment, reducing assembly man-hours and making it more stable. The present invention provides a high quality and inexpensive image display device.
実施例
以下本発明の一実施例の画像表示装置について図面を参
照しながら説明する。Embodiment Hereinafter, an image display device according to an embodiment of the present invention will be described with reference to the drawings.
第1図は、本発明の一実施例における画像表示装置の線
陰極架張部の構造を示すものである。1は背面電極、2
イ、20.2ハ、2二は線陰極、31は絶縁ワイヤー、
33は高さ規制バー、34はY方向位置決め枠体、35
は線陰極バネ、37は高さ規制バー取付金具を一体化し
た絶縁ワイヤー規制金属板である。なお第1図では線陰
極2の片端部の構造しか図示していないが、もう一方の
端部も同一形状である。高さ規制バー33は、高さ規制
バー取付金具一体化絶縁ワイヤー規制金属板37で取付
固定されている。FIG. 1 shows the structure of a line cathode extending portion of an image display device in an embodiment of the present invention. 1 is the back electrode, 2
A, 20.2 C, 22 is a wire cathode, 31 is an insulated wire,
33 is a height regulating bar, 34 is a Y direction positioning frame body, 35
37 is a wire cathode spring, and 37 is an insulated wire regulating metal plate integrated with a height regulating bar mounting bracket. Although FIG. 1 only shows the structure of one end of the wire cathode 2, the other end also has the same shape. The height regulation bar 33 is mounted and fixed by an insulated wire regulation metal plate 37 integrated with a height regulation bar mounting bracket.
以上のように構成された線陰極架張部を持った画像表示
装置においては、絶縁ワイヤー31と線陰極2との交点
と、高さ規制バー33との相互位置関係は、高さ規制バ
ー取付金具一体化絶縁ワイヤー規制金属板37の部品寸
法精度で決まり、組立寸法精度には左右されない、よっ
てトータルとしての組立精度を上げることができる。ま
た高さ規制バー取付金具一体化絶縁ワイヤー規制金属板
37を背面[ilに取付けると同時に、高さ規制バー3
3も背面電極1に取付固定されるため、組立工数も削減
されるものである。In the image display device having the line cathode stretching section configured as described above, the mutual positional relationship between the intersection of the insulated wire 31 and the line cathode 2 and the height regulation bar 33 is determined by the height regulation bar attachment point. It is determined by the component dimensional accuracy of the metal fitting-integrated insulated wire regulating metal plate 37 and is not affected by the assembly dimensional accuracy, so the overall assembly accuracy can be improved. At the same time, the height regulating bar mounting bracket integrated insulated wire regulating metal plate 37 is attached to the rear [il]
3 is also attached and fixed to the back electrode 1, so the number of assembly steps is also reduced.
発明の効果
以上のように本発明によれば、高さ規制バーと、絶縁ワ
イヤーと線陰極との交点との相互位置関係は、高さ規制
バー取付金具一体化絶縁ワイヤー規制金属板の部品精度
だけで容易に確保出来、また高さ規制バー取付金具一体
化絶縁ワイヤー規制金属板を背面電極に取付固定するの
と同時に、高さ規制バーも背面電極に取付固定が完了し
てしまうので、組立工数を削減出来るようになり、安定
した高品質で安価な画像表示装置を得ることができるも
のである。Effects of the Invention As described above, according to the present invention, the mutual positional relationship between the height regulation bar and the intersection of the insulated wire and the wire cathode is determined by the component accuracy of the insulated wire regulation metal plate integrated with the height regulation bar mounting bracket. In addition, the height regulation bar can be easily secured by simply attaching and fixing the height regulation bar to the back electrode at the same time as installing and fixing the insulated wire regulation metal plate with integrated height regulation bar mounting bracket to the back electrode. The number of man-hours can be reduced, and a stable, high-quality, inexpensive image display device can be obtained.
第1図は本発明の一実施例における画像表示装置の線陰
極架張部の部分分解斜視図、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図は従来の画像表
示装置の線陰極架張部の部分分解斜視図である。
1・・・・・・背面電極、31・・・・・・絶縁ワイヤ
ー、33・・・・・・高さ規制バー、34・・・・・・
Y方向位置決め枠体、35・・・・・・線陰極架張バネ
、37・・・・・・高さ規制バー取付金具一体化絶縁ワ
イヤー規制金属板。FIG. 1 is a partially exploded perspective view of a line cathode strut part 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. FIG. 3 is a partially exploded perspective view of a line cathode extending portion of the image display device. 1...Back electrode, 31...Insulated wire, 33...Height regulation bar, 34...
Y-direction positioning frame body, 35... wire cathode suspension spring, 37... height regulating bar mounting bracket integrated insulated wire regulating metal plate.
Claims (1)
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、1枚の導電板からな
る背面電極、複数本の線陰極、1枚もしくは複数の導電
板からなる引出し電極、信号電極、集束電極、水平偏向
電極、垂直偏向電極を備えた画像表示装置において、前
記複数本の線陰極の高さ規制バーと振動防止用絶縁ワイ
ヤー規制金属板とを一体化させたことを特徴とする画像
表示装置。A front glass container whose inner surface is coated with phosphor, a back container facing the front glass container, and a back electrode made of one conductive plate and a plurality of back electrodes in the space sandwiched between the back container and the front glass container. In an image display device equipped with a line cathode, an extraction electrode made of one or more conductive plates, a signal electrode, a focusing electrode, a horizontal deflection electrode, and a vertical deflection electrode, the height regulating bar of the plurality of line cathodes and vibration prevention are provided. An image display device characterized by being integrated with an insulated wire regulating metal plate.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18550889A JPH0349136A (en) | 1989-07-18 | 1989-07-18 | Image display device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18550889A JPH0349136A (en) | 1989-07-18 | 1989-07-18 | Image display device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0349136A true JPH0349136A (en) | 1991-03-01 |
Family
ID=16172012
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18550889A Pending JPH0349136A (en) | 1989-07-18 | 1989-07-18 | Image display device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0349136A (en) |
-
1989
- 1989-07-18 JP JP18550889A patent/JPH0349136A/en active Pending
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