JPS63105432A - Manufacture of color cathode-ray tube with deflecting yoke - Google Patents
Manufacture of color cathode-ray tube with deflecting yokeInfo
- Publication number
- JPS63105432A JPS63105432A JP24960486A JP24960486A JPS63105432A JP S63105432 A JPS63105432 A JP S63105432A JP 24960486 A JP24960486 A JP 24960486A JP 24960486 A JP24960486 A JP 24960486A JP S63105432 A JPS63105432 A JP S63105432A
- Authority
- JP
- Japan
- Prior art keywords
- ray tube
- color cathode
- deflecting yoke
- adjustment
- deflection yoke
- 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 abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 13
- 238000010894 electron beam technology Methods 0.000 claims abstract description 7
- 239000012141 concentrate Substances 0.000 abstract 1
- 238000009434 installation Methods 0.000 abstract 1
- 229910000859 α-Fe Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 239000007799 cork Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Landscapes
- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、総合的に工数を低減させ品質を向上させた偏
向ヨーク付カラー陰極線管の製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for manufacturing a color cathode ray tube with a deflection yoke, which reduces the number of man-hours and improves quality.
従来は、偏向ヨークを組上げてから、偏向ヨーク単体に
対し、標準球(又は基準球)として選定した特定のカラ
ー陰極線管に取付は組合せた状態で、標準球の3本の電
子ビームの偏向時の動的集中状態(ダイナミックコンバ
ーゼンス)が最良となるように偏向ヨークに調整作業を
施し、これを偏向ヨーク完成品としていた。Conventionally, after assembling the deflection yoke, the deflection yoke alone was attached to a specific color cathode ray tube selected as a standard bulb (or reference bulb), and when the three electron beams of the standard bulb were being deflected. Adjustments were made to the deflection yoke to achieve the best dynamic convergence, and this was made into a completed deflection yoke.
従って、従来、偏向コイル付カラー陰極線管を製造する
際には、偏向コイル単体で一旦上記のようなダイナミッ
クコンバーゼンス調整を行った偏向コイルをカラー陰極
線管本体に取付は組合せて動的集中状態を調べ、必要な
らば再度ダイナミックコンバーゼンスの調整を行ってい
た。Therefore, conventionally, when manufacturing a color cathode ray tube with a deflection coil, the dynamic convergence state was checked by attaching the deflection coil to the color cathode ray tube body and then combining the deflection coil after performing the dynamic convergence adjustment as described above. , if necessary, the dynamic convergence was adjusted again.
偏向ヨークのダイナミックコンバーゼンスの調整作業は
、偏向コークの内、外面にフェライト入りゴムシートを
貼ったり、フェライト捧、フェライト板、或いは小型永
久磁石を取付けたりするほか、偏向ヨークと陰極線管(
のネック管)との間に残存する僅かな隙間を利用して取
付は角度を変えたり、偏向ヨークの陰極線管に対する取
付は位置を管軸方向にずらして見るなど、偏向コイルに
偏向電流を流したときに3本の電子ビーム夫々に作用す
る偏向磁界を調整する作業であって、熟練した技術を必
要とし、かつ工数を要する作業である。Adjustment of the dynamic convergence of the deflection yoke involves pasting ferrite-containing rubber sheets on the inner and outer surfaces of the deflection cork, attaching ferrite plates, ferrite plates, or small permanent magnets, as well as adjusting the deflection yoke and cathode ray tube (
When installing the deflection yoke to the cathode ray tube, you can change the mounting angle by using the small gap remaining between the neck tube (of the neck tube), or shift the position of the deflection yoke to the tube axis in order to pass the deflection current through the deflection coil. The work is to adjust the deflection magnetic fields that act on each of the three electron beams when the electron beams are bent, and this work requires a skilled technique and a lot of man-hours.
単体で上記のような複雑なダイナミックコンバーゼンス
調整を済ませた偏向ヨークでも、標準球とは異なるカラ
ニ陰極線管に組合わせると、カラー陰極線管同士の間の
避は難いばらつきのために、偏向ヨーク単体で行ったダ
イナミックコンバーゼンスの調整が殆ど役に立たない場
合も生じ、更に、単体での調整に際し上記のような種々
の調整部品を取付けてしまったため、再開整時には却っ
て十分なダイナミックコンバーゼンス補正をすることが
出来ず、微補正の補正限界、例えば最大で11fi程度
があり、完成後の品質確保が困難で、そのため品質変動
が大きくなるなどの問題が生じていた。なお上記再開整
時には、調整部品は偏向ヨークの外部から取付ける。偏
向ヨーク付カラー陰極線管製作の際に、偏向ヨークのダ
イナミックコンバーゼンスの再調整に要する工数は、こ
の陰極線管を製作する全工数の80〜90%を占めるほ
ど大きい。なお、偏向ヨークの取付構造としては例えば
実開昭48−86716号公報に開示されている。Even if the deflection yoke alone has undergone the complex dynamic convergence adjustment described above, when combined with a Kalani cathode ray tube that is different from the standard bulb, the deflection yoke alone will not be able to handle it due to the unavoidable variations between color cathode ray tubes. There are cases where the dynamic convergence adjustment that you have made is almost useless, and furthermore, because various adjustment parts such as those mentioned above were installed when adjusting the unit alone, it may be impossible to make a sufficient dynamic convergence correction when restarting the adjustment. , there is a correction limit for fine correction, for example, a maximum of about 11 fi, making it difficult to ensure quality after completion, resulting in problems such as large quality fluctuations. Note that during the above-mentioned re-adjustment, the adjustment parts are attached from the outside of the deflection yoke. When manufacturing a color cathode ray tube with a deflection yoke, the number of man-hours required to readjust the dynamic convergence of the deflection yoke is so large that it accounts for 80 to 90% of the total number of man-hours required to manufacture the cathode ray tube. A mounting structure for the deflection yoke is disclosed in, for example, Japanese Utility Model Application No. 48-86716.
本発明は上記従来の偏向コーク付カラー陰極線管の製造
方法によって生じていた問題点を解決し、所要工数が少
なく、完成後の品質も良好な、量産性の高い偏向ヨーク
付カラー陰極線管の製造方法を提供することを目的とす
る。The present invention solves the problems caused by the above-mentioned conventional method for manufacturing color cathode ray tubes with deflection yokes, and manufactures color cathode ray tubes with deflection yokes that require less man-hours, have good quality after completion, and are highly mass-producible. The purpose is to provide a method.
上記問題点を解決するために本発明においては、組上げ
作業後に単体としての調整作業を経ていない偏向ヨーク
をカラー陰極線管本体に取付は組合せてから、この組合
せた状態で偏向時に3本の電子ビームが集中するように
偏向ヨークの調整作業を行い、偏向ヨーク単体に対する
集中状態調整工程を省略することにした。In order to solve the above problems, in the present invention, the deflection yoke, which has not undergone adjustment work as a single unit after assembly work, is attached to the color cathode ray tube main body and then assembled, and in this combined state, three electron beams are emitted during deflection. We decided to adjust the deflection yoke so that it was concentrated, and omit the concentration adjustment process for the deflection yoke alone.
従来、実際には余り役に立たない場合も見られた偏向ヨ
ーク単体でのダイナミックコンバーゼンス調整工程を省
略してしまったから、そのために費やしていた工数や部
材が全く不要となることは勿論、完成品相互間で避は難
いかなりのばらつきを有するカラー陰極線管本体それぞ
れに対し、各管独自の性質に合わせて其の管と組合せる
偏向ヨークに対して最適の調整を行うことが出来る(表
示画面上で従来の約2倍程度の寸法まで補正できる)よ
うになり、完成球の品質も向上する。各カラー陰極線管
本体と単体未調整偏向ヨークとの組合せ調整に要する工
数が、従来の単体で調整済みの偏向ヨークをカラー陰極
線管本体に組合せ調整する場合の工数より大きくなるこ
ともあるが、全工程を通じて見れば調整工数が少なくな
り、しかも品質良好な偏向ヨーク付カラー陰極線管の完
成球が、従来よりも安い原価で製造できることになる。Since we have omitted the dynamic convergence adjustment process for the deflection yoke alone, which was previously found to be of little use in practice, the man-hours and materials that were previously spent on it are no longer necessary, and the difference between the finished products can be improved. It is possible to make optimal adjustments to the deflection yoke that is combined with each color cathode ray tube body in accordance with the unique characteristics of each color cathode ray tube, which has considerable variations that are difficult to avoid. The dimensions of the ball can be corrected to approximately twice that of the original ball), and the quality of the finished ball also improves. The man-hours required to adjust the combination of each color cathode-ray tube body and a single, unadjusted deflection yoke may be greater than the man-hours required to adjust the combination of a conventional single-adjusted deflection yoke to the color cathode-ray tube body. Viewed throughout the process, the number of adjustment steps will be reduced, and a completed color cathode ray tube with a deflection yoke of good quality can be manufactured at a lower cost than in the past.
本発明の実施例を次頁の第1表に示す偏向ヨーク調整作
業概要により説明する。表中の1’!ag、はマグネッ
ト組立を示し、公知の如く、2極、4極、第1表 偏向
ヨーク詭浩Wロ耐翳戻
6極に着磁した円環状永久磁石板を夫々2枚ずつ組合せ
、偏向ヨークのステムに近い端部に取付けて、無偏向状
態の画面中心部で3本の電子ビームのスタティックコン
バーゼンス(STC)のtjl整に用いる。An embodiment of the present invention will be explained with reference to an outline of the deflection yoke adjustment work shown in Table 1 on the next page. 1' in the table! ag indicates a magnet assembly, and as is well known, two annular permanent magnet plates magnetized into two poles, four poles, and six poles are assembled to form a deflection yoke. It is attached to the end near the stem and used to adjust the static convergence (STC) of three electron beams at the center of the screen in an undeflected state.
偏向ヨークの製作工程には、コイル組上げ以降に、基本
調整として4工程、次にダイナミックコンバーゼンス補
正作業として4工程あり、更に仕上げ工程もある。これ
らの工程中、・印の工程は、偏向ヨーク付カラー陰極線
管の調整作業でも必ず実施しなければならない作業であ
り、これらが重複作業となっている。本発明を実施すれ
ば、これらの重複作業を省略できることになり、品質が
良い偏向ヨーク付きカラー陰極線管を、低原価で生産で
きることになる。The manufacturing process for the deflection yoke includes four steps for basic adjustment after coil assembly, then four steps for dynamic convergence correction work, and a finishing step. Among these steps, the steps marked with * must be performed even when adjusting a color cathode ray tube with a deflection yoke, and these steps are redundant. By implementing the present invention, these redundant operations can be omitted, and a high-quality color cathode ray tube with a deflection yoke can be produced at a low cost.
第1図は本発明の方法により製造された偏向ヨーク付カ
ラー陰極線管の一例を示す平面図で、図中、1は偏向ヨ
ーク、2はカラー陰極線管、3はマグネット組立、4は
偏向ヨーク付カラー陰極線管である。FIG. 1 is a plan view showing an example of a color cathode ray tube with a deflection yoke manufactured by the method of the present invention, in which 1 is a deflection yoke, 2 is a color cathode ray tube, 3 is a magnet assembly, and 4 is a color cathode ray tube with a deflection yoke. It is a color cathode ray tube.
以上説明したように本発明によれば、偏向コイル付きカ
ラー陰極線管の製造工程数が大幅に減少されて原価が低
減され、しかも画面上での補正量の最大値が、従来の2
倍以上まで補正できるようになり、色純度特性を向上さ
せることが出来る。As explained above, according to the present invention, the number of manufacturing steps for a color cathode ray tube with a deflection coil is significantly reduced, and the cost is reduced.
It is now possible to correct up to twice as much or more, and it is possible to improve color purity characteristics.
第1図は本発明に係る方法により製造された偏向ヨーク
付カラー陰極線管の一例を示す平面図である。FIG. 1 is a plan view showing an example of a color cathode ray tube with a deflection yoke manufactured by the method according to the present invention.
Claims (1)
を装着した偏向ヨーク付カラー陰極線管の製造方法にお
いて、組上げ作業後に単体としての調整作業を行ってい
ない偏向ヨークをカラー陰極線管本体に取付け組合せて
から、この組合せた状態で偏向時に3本の電子ビームが
集中するように偏向ヨークの調整作業を行うことを特徴
とする偏向ヨーク付カラー陰極線管の製造方法。1. In the manufacturing method of a color cathode ray tube with a deflection yoke, in which a deflection yoke and a magnet assembly are attached to the color cathode ray tube body, the deflection yoke, which has not been adjusted as a single unit after assembly, is attached and assembled to the color cathode ray tube body. A method for manufacturing a color cathode ray tube with a deflection yoke, comprising adjusting the deflection yoke so that three electron beams are concentrated during deflection in this combined state.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24960486A JPS63105432A (en) | 1986-10-22 | 1986-10-22 | Manufacture of color cathode-ray tube with deflecting yoke |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24960486A JPS63105432A (en) | 1986-10-22 | 1986-10-22 | Manufacture of color cathode-ray tube with deflecting yoke |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS63105432A true JPS63105432A (en) | 1988-05-10 |
Family
ID=17195491
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP24960486A Pending JPS63105432A (en) | 1986-10-22 | 1986-10-22 | Manufacture of color cathode-ray tube with deflecting yoke |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS63105432A (en) |
-
1986
- 1986-10-22 JP JP24960486A patent/JPS63105432A/en active Pending
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