JPH05135700A - Auxiliary adjusting device for color purity and convergence - Google Patents

Auxiliary adjusting device for color purity and convergence

Info

Publication number
JPH05135700A
JPH05135700A JP29428791A JP29428791A JPH05135700A JP H05135700 A JPH05135700 A JP H05135700A JP 29428791 A JP29428791 A JP 29428791A JP 29428791 A JP29428791 A JP 29428791A JP H05135700 A JPH05135700 A JP H05135700A
Authority
JP
Japan
Prior art keywords
magnetic field
assembly
convergence
color purity
cores
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
Application number
JP29428791A
Other languages
Japanese (ja)
Inventor
Hideo Noda
秀夫 野田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP29428791A priority Critical patent/JPH05135700A/en
Publication of JPH05135700A publication Critical patent/JPH05135700A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2229/00Details of cathode ray tubes or electron beam tubes
    • H01J2229/56Correction of beam optics
    • H01J2229/563Aberrations by type
    • H01J2229/5637Colour purity

Landscapes

  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)

Abstract

PURPOSE:To enhance the workability and accuracy of adjusting ITC by shaping an auxiliary adjusting device for color purity and convergence such that it does not obstruct the work of adjusting ITC and is not affected by the leakage magnetic field of a deflection yoke. CONSTITUTION:Signals for reproducing magnetostriction similar to that displayed in a monitor display are sent to eight bar-shaped ferrite cores and to two-, four-and six-pole magnetic field generating coils wound around the cores, the bar-shaped ferrite cores having the same radius and disposed at an interval of 45 degrees to one another in their radial direction and parallel to the direction of the center axis 10 of a color cathode-ray tube 1a, at a position at which they do not overlap a CP assembly 1c. Then color purity and convergence are adjusted.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】この発明はインライン形の電子銃
を有するシャドウマスク式カラーブラウン管を実装する
のに先立って、あらかじめ、色純度、コンバーゼンス調
整をおこなうために用いる色純度およびコンバーゼンス
副調整装置に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a color purity and convergence sub-adjustment device used for adjusting color purity and convergence in advance before mounting a shadow mask type color CRT having an in-line type electron gun. It is a thing.

【0002】[0002]

【従来の技術】偏向ヨークやCPアッセンブリなどを取
り付けて調整(以下、ITC調整作業という)されたカ
ラー陰極線管アッセンブリをモニタ表示装置に組み込ん
で使用する際に、モニタ表示装置を構成しているシール
ド用の鉄板やトランス類の電子部品が発生する漏洩磁界
によって、色純度とコンバーゼンスが悪化する。
2. Description of the Related Art A shield which constitutes a monitor display device when a color cathode ray tube assembly adjusted (hereinafter referred to as ITC adjustment work) by attaching a deflection yoke, a CP assembly and the like is incorporated into the monitor display device and used. Color purity and convergence deteriorate due to stray magnetic fields generated by electronic components such as iron plates and transformers.

【0003】このため、ITC調整作業はモニタ表示装
置に組み込まれた状態でおこなわなければならなく、作
業性や精度を著しく低下させていた。
For this reason, the ITC adjustment work must be carried out in a state where it is incorporated in the monitor display device, and the workability and accuracy are remarkably reduced.

【0004】図6は特開昭62─22351号公報に開
示された従来のコンバーゼンス副調整装置(以下、従来
例という)を示すものである。
FIG. 6 shows a conventional convergence sub-adjustment device (hereinafter referred to as a conventional example) disclosed in Japanese Patent Laid-Open No. 62-22351.

【0005】同図において、1はカラー陰極線管アッセ
ンブリであり、カラー陰極線管1aと偏向ヨーク1bと
CPアッセンブリ1cとで構成される。3,4,5はネ
ック部分に配設された2極、4極、6極磁界発生コイ
ル、31,41,51はそれぞれのコイルを駆動させる
ための電源、32,42,52はデータを記憶するため
のメモリ装置、6はコンバーゼンス信号発生器、7はビ
デオ信号増幅器、8は偏向ヨークを駆動する電源であ
る。
In the figure, reference numeral 1 denotes a color cathode ray tube assembly, which is composed of a color cathode ray tube 1a, a deflection yoke 1b, and a CP assembly 1c. 3, 4, 5 are 2-pole, 4-pole, and 6-pole magnetic field generating coils arranged in the neck portion, 31, 41, 51 are power supplies for driving the respective coils, 32, 42, 52 store data 6 is a convergence signal generator, 7 is a video signal amplifier, and 8 is a power supply for driving the deflection yoke.

【0006】ITC調整作業性の向上のために発明され
た上記装置によれば、モニタ表示装置が発生する磁気歪
によってカラー陰極線管アッセンブリ1が受けるミスラ
ンディングとミスコンバーゼンスの量をあらかじかめ、
メモリ装置32,42,52に記憶させておき、このデ
ータをコンバーゼンス信号発生器6の信号と同期させ逐
次呼び出して、駆動電源31,41,51を介して各磁
界発生コイル3,4,5へ伝えることにより、モニタ表
示装置に組み込まない状態で磁気歪を再現できる。
According to the above-mentioned device invented for improving the ITC adjustment workability, the amount of mislanding and misconvergence that the color cathode ray tube assembly 1 receives due to the magnetostriction generated by the monitor display device is determined.
The data is stored in the memory devices 32, 42 and 52, and this data is sequentially called out in synchronization with the signal of the convergence signal generator 6, and is sent to the magnetic field generating coils 3, 4 and 5 via the driving power sources 31, 41 and 51. By transmitting it, the magnetostriction can be reproduced without being incorporated in the monitor display device.

【0007】なお、磁界発生コイル3,4,5は、CP
アッセンブリ1cの最大径より大きく構成されており、
CPアッセンブリ1cを装着したまま、カラー陰極線管
アッセンブリ1への脱着が可能なように構成されている
ことが必要で、さらに、これらのコイルは、コアを使用
していないことが望ましい。
The magnetic field generating coils 3, 4, and 5 are CP
It is configured to be larger than the maximum diameter of the assembly 1c,
It is necessary that the CP assembly 1c can be attached to and detached from the color cathode ray tube assembly 1 while the CP assembly 1c is mounted, and it is desirable that these coils do not use a core.

【0008】[0008]

【発明が解決しようとする課題】従来例によるコンバー
ゼンス副調整装置は以上のように構成されているが、こ
の中では、磁界発生コイル3,4,5の具体的な構造が
明記されておらず、下記の2つの条件を満足する構造に
する必要があった。すなわち、(1)偏向ヨークの発生
する漏洩磁界を受け、カラー陰極線管に悪影響を与えて
はならない(感度向上のため、コアを使用すると、偏向
ヨークの発生する漏洩磁界を受け、カラー陰極線管に悪
影響を与える)、(2)色純度とコンバーゼンス調整作
業に支障のないこと(CPアッセンブリに重なる中心軸
の円周上に位置してはならない)。
The convergence sub-adjusting device according to the conventional example is constructed as described above, but the specific structure of the magnetic field generating coils 3, 4 and 5 is not specified therein. It was necessary to make the structure satisfying the following two conditions. That is, (1) the color cathode ray tube should not be adversely affected by the leakage magnetic field generated by the deflection yoke (if a core is used to improve sensitivity, the color cathode ray tube receives the leakage magnetic field generated by the deflection yoke). (2) Color purity and convergence adjustment work should not be hindered (it should not be located on the circumference of the central axis that overlaps the CP assembly).

【0009】この発明は上記の課題を解決するためにな
されたもので、偏向ヨークの発生する漏洩磁界に影響さ
れることなく、コアを使用することができ、かつ色純度
とコンバーゼンス調整作業に支障を与えることのない色
純度およびコンバーゼンス副調整装置を提供することを
目的とする。
The present invention has been made to solve the above-mentioned problems, and the core can be used without being affected by the leakage magnetic field generated by the deflection yoke, and the color purity and convergence adjustment work is hindered. An object of the present invention is to provide a color purity and convergence sub-adjustment device which does not give

【0010】[0010]

【課題を解決するための手段】この発明に係わる色純度
およびコンバーゼンス副調整装置は、複数個の棒状コア
とこれらを磁気的に励起する補正磁界発生コイルをCP
アッセンブリよりCRTソケット寄りのネック部寄りの
部分に、カラー陰極線管の管軸と棒状コアの軸がほぼ平
行になるように配設したものである。
A color purity and convergence sub-adjustment device according to the present invention comprises a plurality of rod-shaped cores and a correction magnetic field generating coil for magnetically exciting these cores.
The color cathode ray tube and the rod-shaped core are arranged so that the tube axis and the axis of the rod-shaped core are substantially parallel to each other in the portion closer to the neck portion closer to the CRT socket than the assembly.

【0011】[0011]

【作用】この発明における色純度およびコンバーゼンス
副調整装置によれば、複数個の棒状コアとそれらに巻か
れた補正磁界発生コイルをカラー陰極線管の管軸と平行
にすることにより、偏向ヨークからの漏洩磁界の影響を
受けることなく、補正感度を上げることができ、CPア
ッセンブリに重ならないようにすることにより、色純度
およびコンバーゼンス調整作業に支障を与えることがな
くなる。
According to the color purity and convergence sub-adjustment device of the present invention, the plurality of rod-shaped cores and the correction magnetic field generating coils wound around them are made parallel to the tube axis of the color cathode ray tube so that the deflection yoke The correction sensitivity can be increased without being affected by the leakage magnetic field, and by avoiding overlapping with the CP assembly, the color purity and convergence adjustment work is not hindered.

【0012】[0012]

【実施例】以下、この発明の一実施例を図面により説明
する。図1はこの発明の一実施例による色純度およびコ
ンバーゼンス副調整装置を示す斜視図、図2は図1で示
す色純度およびコンバーゼンス副調整装置をカラー陰極
線管アッセンブリに装着した状態の側面図、図3は 図
3はこの磁界発生装置がカラー陰極線管のネック部に与
える補正磁界の6パターンを示したもので、ネック部を
輪切状にした断面図、図4は色純度およびコンバーゼン
ス副調整装置に感度を上げるためのリング状フェライト
コアを追加した状態の斜視図、図5はこの発明のー実施
例による色純度およびコンバーゼンス副調整装置の回路
構成を示す図である。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1 is a perspective view showing a color purity / convergence sub-adjustment device according to an embodiment of the present invention, and FIG. 2 is a side view showing a state in which the color purity / convergence sub-adjustment device shown in FIG. 1 is mounted on a color cathode ray tube assembly. FIG. 3 shows 6 patterns of the correction magnetic field applied to the neck portion of the color cathode ray tube by this magnetic field generator. FIG. 4 is a cross-sectional view in which the neck portion is sliced. FIG. 4 is a color purity and convergence sub-adjustment device. FIG. 5 is a perspective view showing a state in which a ring-shaped ferrite core for increasing sensitivity is added, and FIG. 5 is a diagram showing a circuit configuration of a color purity and convergence sub-adjustment device according to an embodiment of the present invention.

【0013】図2において、1はカラー陰極線管アッセ
ンブリ、1aはカラー陰極線管、1bは偏向ヨーク、1
cは2極、4極、6極の永久磁石からなるCPアッセン
ブリ、1dはCRTソケット、2はCRTソケット1d
に固定された(他の固定方式でも差し支えない)磁界発
生装置で、ネック部の周りをカラー陰極線管1aの中心
軸10に対して垂直なその前端面12が、同じく中心軸
10に対して垂直なCPアッセンブリ1cの磁気発生部
後端面11より偏向ヨーク1b寄りに越えないように、
同ー半径でラジアル方向に45°間隔で配設された8つ
の棒状フェライトコアと補正磁界発生コイルで構成され
る。
In FIG. 2, 1 is a color cathode ray tube assembly, 1a is a color cathode ray tube, 1b is a deflection yoke, and 1b is a deflection yoke.
c is a CP assembly consisting of permanent magnets with 2 poles, 4 poles and 6 poles, 1d is a CRT socket, 2 is a CRT socket 1d
In the magnetic field generator fixed to (there may be any other fixing method), the front end face 12 perpendicular to the central axis 10 of the color cathode ray tube 1a around the neck is also perpendicular to the central axis 10. In order not to exceed the deflection yoke 1b from the rear end face 11 of the magnetic field generating portion of the CP assembly 1c,
It is composed of eight rod-shaped ferrite cores arranged at the same radius in the radial direction at intervals of 45 ° and a correction magnetic field generating coil.

【0014】なお、図4で示すように、感度を上げるた
めに、8つの棒状フェライトコアのCRTソケット側の
端部にリング状フェライトコア9を挿入してもよく、補
正磁界発生コイルはこれに巻いてもよい。
As shown in FIG. 4, in order to improve the sensitivity, a ring-shaped ferrite core 9 may be inserted at the end of the eight rod-shaped ferrite cores on the CRT socket side. It may be rolled.

【0015】図1はこの磁界発生装置2の詳細を示した
もので、棒状フェライトコア21a〜28aと巻線用ボ
ビン21b〜28bと補正磁界発生コイル21c〜28
cがカラー陰極線管のネック部を囲む形となる。補正磁
界発生コイル21c〜28cの各々は、2極磁界、4極
磁界、6極磁界発生のための独立したコイルを有してい
る。
FIG. 1 shows the details of the magnetic field generator 2, which includes rod-shaped ferrite cores 21a to 28a, winding bobbins 21b to 28b, and correction magnetic field generating coils 21c to 28.
The shape of c surrounds the neck of the color cathode ray tube. Each of the correction magnetic field generating coils 21c to 28c has an independent coil for generating a 2-pole magnetic field, a 4-pole magnetic field, and a 6-pole magnetic field.

【0016】つぎに、上記構成の動作について説明す
る。図3において、同図(a)は各電子ビームR、G、
Bを水平方向へ同量同方向シフトさせるための磁界パタ
ーンで、コア28a,21a,22aと、コア24a,
25a,26aのCPアッセンブリ側の先端部が互いに
逆極性となるようにコイルを巻き、直列接続(2Hコイ
ルという)する。
Next, the operation of the above configuration will be described. In FIG. 3, FIG. 3A shows each electron beam R, G,
A magnetic field pattern for shifting B in the same amount in the same direction in the horizontal direction, which includes cores 28a, 21a, 22a and cores 24a, 24a,
The coils are wound so that the tip ends of the 25a and 26a on the CP assembly side have opposite polarities, and are connected in series (referred to as a 2H coil).

【0017】同図(b)は各電子ビームR、G、Bを垂
直方向へ同量同方向シフトさせるための磁界パターン
で、コア26a,27a,28aと、コア22a,23
a,24aのCPアッセンブリ側の先端部が互いに逆極
性となるようにコイルを巻き、直列接続(2Vコイルと
いう)する。
FIG. 2B shows a magnetic field pattern for shifting the respective electron beams R, G, B in the same direction in the vertical direction by the same amount. The magnetic patterns are the cores 26a, 27a, 28a and the cores 22a, 23.
The coils are wound so that the tips of the a and 24a on the CP assembly side have opposite polarities, and are connected in series (referred to as a 2V coil).

【0018】同図(c)は外側電子ビームRとGを水平
方向に互いに逆方向に同量シフトさせるための磁界パタ
ーンで、コア28a,24aと、コア26a,22aの
CPアッセンブリ側の先端部が互いに逆極性となるよう
にコイルを巻き、直列接続(4Hコイルという)する。
FIG. 1C shows a magnetic field pattern for horizontally shifting the outer electron beams R and G by the same amount in opposite directions. The tip ends of the cores 28a, 24a and the cores 26a, 22a on the CP assembly side. Coils are wound so that they have mutually opposite polarities, and are connected in series (referred to as 4H coil).

【0019】同図(d)は外側電子ビームRとGを垂直
方向に互いに逆方向に同量シフトさせるための磁界パタ
ーンで、コア21a,25aと、コア23a,27aの
CPアッセンブリ側の先端部が互いに逆極性となるよう
にコイルを巻き、直列接続(4Vコイルという)する。
FIG. 3D shows a magnetic field pattern for shifting the outer electron beams R and G vertically in the opposite directions by the same amount, and the tip portions of the cores 21a and 25a and the cores 23a and 27a on the CP assembly side. The coils are wound so that they have opposite polarities, and are connected in series (referred to as 4V coil).

【0020】同図(e)は外側電子ビームRとGを水平
方向に同量同方向シフトさせるための磁界パターンで、
コア28a,22a,25aと、コア21a,24a,
26aのCPアッセンブリ側の先端が互いに逆極性とな
るようにコイルを巻き、直列接続(6Hコイルという)
する。
FIG. 6E shows a magnetic field pattern for horizontally shifting the outer electron beams R and G by the same amount in the same direction.
Cores 28a, 22a, 25a and cores 21a, 24a,
A coil is wound so that the tips of 26a of the CP assembly side have mutually opposite polarities, and they are connected in series (called a 6H coil).
To do.

【0021】さらに、同図(f)は外側電子ビームRと
Gを垂直方向に同量同方向シフトさせるための磁界パタ
ーンで、コア22a,24a,27aと、コア23a,
26a,28aのCPアッセンブリ側の先端が互いに逆
極性となるようにコイルを巻き、直列接続(6Vコイル
という)する。
Further, FIG. 6 (f) shows a magnetic field pattern for shifting the outer electron beams R and G in the same direction in the vertical direction by the same amount, and includes cores 22a, 24a, 27a and cores 23a, 23a.
The coils are wound so that the tips of the 26a and 28a on the CP assembly side have mutually opposite polarities, and connected in series (referred to as 6V coil).

【0022】図5はこれらのコイルの配線構成を示した
もので、図6に示すように、従来例で示した装置の駆動
電源部に接続することにより、モニタ表示装置における
磁気歪みを再現することができる。
FIG. 5 shows the wiring configuration of these coils. As shown in FIG. 6, by connecting to the drive power source section of the device shown in the conventional example, the magnetic distortion in the monitor display device is reproduced. be able to.

【0023】なお、図5に示すコイルは全て使用せず、
モニタ表示装置によって必要なものを組み合わせて使用
してもよく、棒状コアの数もかならずしも8本である必
要はない。
The coils shown in FIG. 5 were not used,
The monitor display devices may be used in combination as necessary, and the number of rod-shaped cores does not necessarily have to be eight.

【0024】[0024]

【発明の効果】以上のように、この発明によれば、磁気
発生装置に棒状フェライトコアを使用し、CPアッセン
ブリと重ならないように、管軸と平行になるように構成
したので、色純度とコンバーゼンス調整作業(ITC作
業)に支障を与えないうえ、偏向ヨークの漏洩磁界の影
響を受けにくくなり、作業性が向上し、精度の高いもの
が得られるという効果がある。
As described above, according to the present invention, since the rod-shaped ferrite core is used in the magnetic field generator and is configured to be parallel to the tube axis so as not to overlap with the CP assembly, the color purity can be improved. There is an effect that the convergence adjustment work (ITC work) is not hindered, the influence of the leakage magnetic field of the deflection yoke is reduced, workability is improved, and highly accurate work can be obtained.

【図面の簡単な説明】[Brief description of drawings]

【図1】この発明の一実施例による色純度およびコンバ
ーゼンス副調整装置を示す斜視図である。
FIG. 1 is a perspective view showing a color purity and convergence sub-adjustment device according to an embodiment of the present invention.

【図2】この発明の一実施例による色純度およびコンバ
ーゼンス副調整装置をカラー陰極線管アッセンブリに装
着した状態の側面図である。
FIG. 2 is a side view showing a state in which a color purity and convergence sub-adjustment device according to an embodiment of the present invention is mounted on a color cathode ray tube assembly.

【図3】この発明の一実施例による色純度およびコンバ
ーゼンス副調整装置の発する6つの磁界パターンのCP
アッセンブリ付近のネック部における断面図である。
FIG. 3 is a CP of six magnetic field patterns emitted by a color purity and convergence sub-adjustment device according to an embodiment of the present invention.
It is sectional drawing in the neck part near the assembly.

【図4】この発明の一実施例による色純度およびコンバ
ーゼンス副調整装置に感度を上げるためのリングコアを
追加した状態を示す斜視図である。
FIG. 4 is a perspective view showing a state in which a ring core for increasing sensitivity is added to the color purity and convergence sub-adjustment device according to the embodiment of the present invention.

【図5】この発明のー実施例による色純度およびコンバ
ーゼンス副調整装置の回路構成を示す図である。
FIG. 5 is a diagram showing a circuit configuration of a color purity and convergence sub-adjustment device according to an embodiment of the present invention.

【図6】従来のコンバーゼンス副調整装置を説明するた
めのブロック図である。
FIG. 6 is a block diagram for explaining a conventional convergence sub-adjustment device.

【符号の説明】[Explanation of symbols]

1 カラー陰極線管アッセンブリ 1a カラー陰極線管 1b 偏向ヨーク 1c CPアッセンブリ 1d CPTソケット 9 リング状フェライトコア 10 カラー陰極線管の中心軸 11 CPアッセンブリの磁気発生部後端面 12 磁界発生部前端面 1 Color Cathode Ray Tube Assembly 1a Color Cathode Ray Tube 1b Deflection Yoke 1c CP Assembly 1d CPT Socket 9 Ring Ferrite Core 10 Central Axis of Color Cathode Ray Tube 11 Magnetic Assembly Rear Facet of CP Assembly 12 Magnetic Field Generation Front Facet

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 カラー陰極線管アッセンブリのネック部
に偏向ヨークとCPアッセンブリを取り付けて調整する
ために、上記ネック部にほぼ平行に配置された複数個の
棒状コアと、これらのコアを磁気的に励起させるための
補正磁界発生コイルとを備え、調整作業時には上記棒状
コアと補正磁界発生コイルの前端面が上記CPアッセン
ブリのカラー陰極線管中心軸に垂直な後端面よりも偏向
ヨーク側には突出してないことを特徴とする色純度およ
びコンバーゼンス副調整装置。
1. A plurality of rod-shaped cores arranged substantially parallel to the neck portion of a color cathode ray tube assembly for attaching and adjusting a deflection yoke and a CP assembly to the neck portion and magnetically connecting these cores. A correction magnetic field generating coil for excitation is provided, and during adjustment work, the rod-shaped core and the front end surface of the correction magnetic field generating coil project toward the deflection yoke side more than the rear end surface perpendicular to the central axis of the color cathode ray tube of the CP assembly. Color purity and convergence sub-adjustment device characterized by the absence of
JP29428791A 1991-11-11 1991-11-11 Auxiliary adjusting device for color purity and convergence Pending JPH05135700A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP29428791A JPH05135700A (en) 1991-11-11 1991-11-11 Auxiliary adjusting device for color purity and convergence

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP29428791A JPH05135700A (en) 1991-11-11 1991-11-11 Auxiliary adjusting device for color purity and convergence

Publications (1)

Publication Number Publication Date
JPH05135700A true JPH05135700A (en) 1993-06-01

Family

ID=17805751

Family Applications (1)

Application Number Title Priority Date Filing Date
JP29428791A Pending JPH05135700A (en) 1991-11-11 1991-11-11 Auxiliary adjusting device for color purity and convergence

Country Status (1)

Country Link
JP (1) JPH05135700A (en)

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