JPH0740473B2 - In-line type color deflection yoke device - Google Patents
In-line type color deflection yoke deviceInfo
- Publication number
- JPH0740473B2 JPH0740473B2 JP1023425A JP2342589A JPH0740473B2 JP H0740473 B2 JPH0740473 B2 JP H0740473B2 JP 1023425 A JP1023425 A JP 1023425A JP 2342589 A JP2342589 A JP 2342589A JP H0740473 B2 JPH0740473 B2 JP H0740473B2
- Authority
- JP
- Japan
- Prior art keywords
- correction
- pole
- screen
- deflection yoke
- correction magnet
- 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.)
- Expired - Lifetime
Links
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、陰極線管の画面上下に現れる糸巻歪の補正手
段を備えたインライン型カラー偏向ヨーク装置に関する
ものである。Description: TECHNICAL FIELD The present invention relates to an in-line type color deflection yoke device having means for correcting pincushion distortion appearing at the top and bottom of the screen of a cathode ray tube.
カラーテレビジョン受像機やカラーディスプレイ装置に
使用されるインライン型陰極線管にはその画面（以下テ
レビ画面という）側から見てブルーＢの電子銃GBとグリ
ーンＧの電子銃GGとレッドＲの電子銃GRが左から右側に
向かってＸ軸線上に配置されており、この陰極線管上に
はブルーＢ、グリーンＧ、レッドＲのビームをラスター
走査するインライン型カラー偏向ヨーク装置が装着され
る。An in-line type cathode ray tube used for a color television receiver or a color display device has a blue B electron gun G B and a green G electron gun G G and red R as seen from the screen side (hereinafter referred to as a television screen). An electron gun G R is arranged on the X-axis line from left to right, and an in-line type color deflection yoke device for raster-scanning blue B, green G and red R beams is mounted on the cathode ray tube. .
この種のインライン型カラー偏向ヨーク装置は、周知の
ように、ボビンに、コアと、水平偏向磁界を発生する水
平偏向コイルと、垂直偏向磁界を発生する垂直偏向コイ
ルとを備えたものであり、この偏向ヨーク装置を駆動さ
せることにより、テレビ画面上にラスターパターンが形
成されるのである。As is well known, an in-line type color deflection yoke device of this type includes, on a bobbin, a core, a horizontal deflection coil that generates a horizontal deflection magnetic field, and a vertical deflection coil that generates a vertical deflection magnetic field. By driving this deflection yoke device, a raster pattern is formed on the television screen.
一般に、テレビ画面上に得られるラスターパターンは第
６図に示すように、画面の上下側と左右側に糸巻歪を有
しており、これがテレビ画面の画像の歪みを引き起こす
ことになる。Generally, the raster pattern obtained on the television screen has pincushion distortion on the upper and lower sides and the left and right sides of the screen as shown in FIG. 6, which causes distortion of the image on the television screen.
近年においては、偏向ヨーク装置にこのような糸巻歪に
起因する画像の歪みをなくすための工夫が施されるよう
になっており、この種の糸巻歪の補正手段を備えたイン
ライン型カラー偏向ヨーク装置として、特開昭53−1482
30号公報が知られている。この公報の装置は、水平偏向
磁界をできるだけピンクッション型になるように水平偏
向コイルの捲線形態を調整してラスター走査の上下の糸
巻歪をほぼ直線状にし、残ったサイド側の糸巻歪を第７
図に示すように、偏向ヨーク１のファネル側の対角軸線
2a,2bよりもＸ軸寄りに配置した永久磁石3a,3b,3c,3dの
磁界と、Ｘ軸上に対抗配置した永久磁石5a,5bの磁界と
によって外側に向けて引き寄せ、前記サイド側の糸巻歪
を補正するものである。In recent years, the deflection yoke device has been devised to eliminate the image distortion caused by such pincushion distortion, and an in-line type color deflection yoke equipped with this kind of pincushion distortion correction means. As a device, JP-A-53-1482
No. 30 publication is known. The device of this publication adjusts the winding form of the horizontal deflection coil so that the horizontal deflection magnetic field is as pincushion-shaped as possible, thereby making the pincushion distortions on the upper and lower sides of the raster scan substantially linear, and the remaining pincushion distortions on the side side. 7
As shown in the figure, the diagonal axis of the deflection yoke 1 on the funnel side
The magnetic fields of the permanent magnets 3a, 3b, 3c, 3d arranged closer to the X-axis than 2a, 2b and the magnetic fields of the permanent magnets 5a, 5b arranged opposite to each other on the X-axis pull them toward the outside, and This is to correct pincushion distortion.
しかしながら、上記従来の装置においては、ラスターパ
ターンの上下の糸巻歪の補正を水平偏向コイルの捲線形
態を調整することにより行うものであるため、その調整
作業が困難であり、ほぼ完全な直線状の歪に補正するこ
とが難しいという問題があった。However, in the above-mentioned conventional apparatus, since the pincushion distortion above and below the raster pattern is corrected by adjusting the winding form of the horizontal deflection coil, the adjustment work is difficult and a substantially perfect linear shape is obtained. There was a problem that it was difficult to correct for distortion.
また、サイド側の糸巻歪は永久磁石により水平外側に引
き寄せて補正するものであるため、テレビ画面の上下の
中間部、特に、テレビ画面の左右端縁部における中間点
S3点（第４図）に与える影響が大きく、このS3点におけ
るミスコンバージェンスの反転（レッドＲとブルーＢの
色ずれ方向が他の箇所の色ずれ方向と異なるミスコンバ
ージェンス）量が大きくなるという不都合があった。In addition, since the side pincushion distortion is corrected by pulling it horizontally outward by a permanent magnet, the middle point at the top and bottom of the TV screen, especially the middle point at the left and right edges of the TV screen, is corrected.
The influence on S 3 point (Fig. 4) is large, and the amount of reversal of misconvergence at this S 3 point (the misconvergence in which the color misregistration direction of red R and blue B is different from the color misregistration direction of other places) becomes large. There was an inconvenience.
本発明は上記従来の課題を解決するためになされたもの
であり、その目的は、水平偏向コイルの面倒な形態調整
を必要とせずにラスターパターンの上下の糸巻歪を直線
状の歪に容易に補正することが可能であり、しかも、テ
レビ画面の中間部、特に、S3点に悪影響を及ぼすことな
く前記上下の糸巻歪を補正することができるインライン
型カラー偏向ヨーク装置を提供することにある。The present invention has been made to solve the above-described conventional problems, and an object thereof is to easily convert the pincushion distortion above and below the raster pattern into a linear distortion without requiring a troublesome form adjustment of the horizontal deflection coil. it is possible to correct, moreover, the intermediate portion of the television screen, in particular, is to provide an in-line type color deflection yoke apparatus capable of correcting the upper and lower pincushion distortion without adversely affecting the three points S .
本発明は上記目的を達成するために、次のように構成さ
れている。すなわち、本発明は、インライン型カラー偏
向ヨークのファネル側の中央上下位置には陰極線管の画
面の中央部分の上下糸巻歪を直線状に補正する一対の第
１の補正磁石が設けられ、上位置の第１の補正磁石は陰
極線管の画面側から見て左側がＳ極に、右側がＮ極に着
磁され、下位置の第１の補正磁石は陰極線管の画面側か
ら見て左側がＮ極に、右側がＳ極に着磁されており、ま
た、前記ファネル側の対角軸線よりも中心Ｙ軸寄りの対
角上下位置には陰極線管の画面の対角周辺部の上下糸巻
歪を直線状に補正する少なくとも４個の第２の補正磁石
が設けられ、陰極線管の画面側から見て上位置の第１の
補正磁石の左右に位置する第２の補正磁石は左側がＮ極
に、右側がＳ極に着磁され、陰極線管の画面側から見て
下位置の第１の補正磁石の左右に位置する第２の補正磁
石は左側がＳ極に、右側がＮ極に着磁されていることを
特徴として構成されている。The present invention is configured as follows to achieve the above object. That is, according to the present invention, a pair of first correction magnets for linearly correcting the vertical pincushion distortion in the central portion of the screen of the cathode ray tube are provided at the upper and lower central positions on the funnel side of the in-line type color deflection yoke, and the upper position is provided. The first correction magnet is magnetized to the S pole on the left side when viewed from the screen side of the cathode ray tube and to the N pole on the right side, and the first correction magnet at the lower position has the N side on the left side when viewed from the screen side of the cathode ray tube. The pole is magnetized to the S pole on the right side, and the upper and lower pincushion distortions in the diagonal peripheral portion of the screen of the cathode ray tube are located at diagonal upper and lower positions closer to the center Y axis than the diagonal axis on the funnel side. At least four second correction magnets for linear correction are provided, and the left side of the second correction magnets located on the left and right of the first correction magnet in the upper position when viewed from the screen side of the cathode ray tube has the N pole on the left side. , The right side is magnetized to the S pole, and the left side of the first correction magnet at the lower position when viewed from the screen side of the cathode ray tube The second correction magnet located on the left side is the S pole, is configured as characterized in that the right side is magnetized to the N pole.
上記のように構成されている本発明において、テレビ画
面の上端側におけるラスターはその画面の中央部分にお
いて、第１の補正磁石の磁界によって上側に引き寄せら
れ、テレビが面の上端側の周辺部分におけるラスターは
上側に配置された第２の補正磁石の磁界によって下側に
向けて引き寄せられる結果、テレビ画面の上側における
糸巻歪は直線状の歪パターンに補正される。同様に、テ
レビ画面の下端部におけるラスターは、画面の中央部分
では下側に配置された第１の補正磁石の磁界によって下
側に引き寄せられ、画面の左右周辺部分のラスターは下
側に配置された第２の補正磁石の磁界によって上側に引
き寄せられる結果、テレビ画面の下側の糸巻歪も同様に
直線状の歪パターンに補正されるのである。In the present invention configured as described above, the raster on the upper end side of the television screen is attracted upward by the magnetic field of the first correction magnet in the central portion of the screen, and the television is in the peripheral portion on the upper end side of the surface. The raster is drawn downward by the magnetic field of the second correction magnet arranged on the upper side, and as a result, the pincushion distortion on the upper side of the television screen is corrected to a linear distortion pattern. Similarly, the raster at the lower edge of the TV screen is pulled downward by the magnetic field of the first correction magnet arranged at the lower side in the central portion of the screen, and the rasters at the left and right peripheral portions of the screen are arranged at the lower side. As a result of being pulled upward by the magnetic field of the second correction magnet, the pincushion distortion on the lower side of the television screen is also corrected to a linear distortion pattern.
以下、本発明の一実施例を図面に基づいて説明する。第
１図及び第２図には本発明に係るインライン型カラー偏
向ヨーク装置の一実施例が示されている。本実施例にお
けるインライン型カラー偏向ヨーク１はボビン４の内周
面に沿ってくら型の水平偏向コイル（図示せず）が巻装
され、ボビン４の外周面にはコア（図示せず）が装着さ
れ、このコアにトロイダル状に垂直偏向コイル６が巻回
されている。An embodiment of the present invention will be described below with reference to the drawings. 1 and 2 show an embodiment of an in-line type color deflection yoke device according to the present invention. In the inline type color deflection yoke 1 in this embodiment, a paddle-shaped horizontal deflection coil (not shown) is wound along the inner peripheral surface of the bobbin 4, and a core (not shown) is provided on the outer peripheral surface of the bobbin 4. The vertical deflection coil 6 is wound around the core in a toroidal shape.
本実施例において特徴的なことは、偏向ヨーク１のファ
ネル側、つまり、偏向ヨーク１の拡大径部（頭部）の上
側と下側に永久磁石からなる一対の第１の補正磁石7a,7
bを接着その他の適宜の手段により固定配設し、また、
偏向ヨーク１の対角軸線2a,2bよりも中心Ｙ軸寄りの上
下位置に二対の、つまり４個の永久磁石からなる第２の
補正磁石8a,8b,8c,8dを同様に接着その他の適宜の手段
により固定配設したことである。前記偏向ヨーク１の上
側に配置された第１の補正磁石7aはテレビ画面側から見
て左側がＳ極に、右側がＮ極に着磁されている。また、
第１の補正磁石7aの左側に配設された第２の補正磁石8a
は左側がＮ極に、右側がＳ極に着磁されており、同様
に、第１の補正磁石7aの右側に配置された第２の補正磁
石8bは左側がＮ極に、右側がＳ極にそれぞれ着磁されて
いる。一方、偏向ヨーク１の下側に配置された第１の補
正磁石7bは上側の第１の補正磁石7aと極性が逆になって
いる。すなわち、テレビ画面側から見て左側がＮ極に、
右側がＳ極にそれぞれ着磁されている。また、この第１
の補正磁石7bの左側に配設された第２の補正磁石8cは左
側がＳ極に、右側がＮ極に着磁されており、同様に、第
１の補正磁石7bの右側に配設された第２の補正磁石8dは
左側がＳ極に、右側がＮ極にそれぞれ着磁されている。
なお、対角軸線2a,2bはテレビ画面の四隅を対角に結ぶ
対角線2a,2bに対応するものである（第４図）。This embodiment is characterized by a pair of first correction magnets 7a, 7a made of permanent magnets on the funnel side of the deflection yoke 1, that is, on the upper side and the lower side of the enlarged diameter portion (head) of the deflection yoke 1.
b is fixedly arranged by adhesion or other appropriate means, and
Similarly, two pairs of second correction magnets 8a, 8b, 8c, 8d composed of four permanent magnets are similarly bonded at the vertical positions closer to the center Y axis than the diagonal axes 2a, 2b of the deflection yoke 1. It is fixedly arranged by an appropriate means. The first correction magnet 7a arranged on the upper side of the deflection yoke 1 is magnetized to the S pole on the left side and the N pole on the right side as viewed from the television screen side. Also,
A second correction magnet 8a arranged on the left side of the first correction magnet 7a
Is magnetized to the N pole on the left side and to the S pole on the right side. Similarly, the second correction magnet 8b arranged on the right side of the first correction magnet 7a has the N pole on the left side and the S pole on the right side. Each is magnetized. On the other hand, the first correction magnet 7b arranged on the lower side of the deflection yoke 1 has a polarity opposite to that of the first correction magnet 7a on the upper side. That is, when viewed from the TV screen side, the left side is the N pole,
The right side is magnetized to the S pole. Also, this first
The second correction magnet 8c arranged on the left side of the correction magnet 7b is magnetized on the left side to the S pole and on the right side to the N pole, and similarly arranged on the right side of the first correction magnet 7b. The second correction magnet 8d is magnetized to the S pole on the left side and the N pole on the right side.
The diagonal axes 2a and 2b correspond to the diagonal lines 2a and 2b that connect the four corners of the television screen diagonally (Fig. 4).
上記のように構成されている本実施例において、第１の
補正磁石7a,7bおよび第２の補正磁石8a〜8dにはＮ極か
らＳ極に向かう磁界が発生しこの磁界の進む方向に対し
て右向きの力Ｆがラスターに作用する。したがって、第
３図に示すように、ラスターパターンの上側では、第１
の補正磁石7aの磁界によって上側の糸巻歪の中央部分
（下向の湾曲部分）が上側に向けて引き寄せられ、第２
の補正磁石8a,8bの磁界によって上側の糸巻歪の両端周
辺部（上向の突出部分）は下側に向けて引き寄せられ
る。これらの磁界の引き寄せ作用によって、上側の糸巻
歪はその力を矢印方向に移動する結果、第３図の鎖線で
示すように、上側の糸巻歪は直線状の歪に補正される。In the present embodiment configured as described above, a magnetic field from the N pole to the S pole is generated in the first correction magnets 7a and 7b and the second correction magnets 8a to 8d, and the magnetic field is directed in the direction in which the magnetic field advances. The rightward force F acts on the raster. Therefore, as shown in FIG. 3, in the upper side of the raster pattern, the first pattern
By the magnetic field of the correction magnet 7a, the central portion of the upper pincushion distortion (the downward curved portion) is pulled toward the upper side, and
By the magnetic fields of the correction magnets 8a and 8b, the peripheral portions (upward protruding portions) of both ends of the upper pincushion distortion are attracted downward. The pulling action of these magnetic fields causes the force of the upper pincushion distortion to move in the direction of the arrow, and as a result, the upper pincushion distortion is corrected to a linear strain as shown by the chain line in FIG.
同様に、ラスターパターンの下側の糸巻歪は、その中央
部分が第１の補正磁石7bの磁界によって下側に引き寄せ
られ、周辺部は第２の補正磁石8c,8dの磁界によって上
側に引き寄せられる結果、同図の鎖線で示すように、下
側の糸巻歪は直線状の歪に補正される。このように、本
実施例では、第１の補正磁石7a,7bと第２の補正磁石8a
〜8dとの補正作用によりラスターパターンの上下の糸巻
歪は完全な直線状の歪に補正され、同時にシーガル歪も
効果的に補正できるという利益が得られる。また、前記
上下の糸巻歪の補正に際しては、第２の補正磁石8a〜8d
はファネル側の対角軸線よりも中央Ｙ軸寄りに配置され
るから、それらの磁界は第４図の斜線で示すように、テ
レビ画面の両端四隅の中間部を避けた上下両端寄りの周
辺部に局部的に作用することとなって、第２の補正磁石
8a〜8dの磁界の影響がテレビ画面の中間部分、特にS3点
に影響を及ぼすことがなく、したがって、このS3点にお
けるミスコンバージェンスの反転量が大きくなって悪化
することはない。Similarly, the pincushion distortion on the lower side of the raster pattern is drawn to the lower side by the magnetic field of the first correction magnet 7b at the central portion and to the upper side by the magnetic field of the second correction magnets 8c and 8d at the peripheral portion. As a result, the lower pincushion distortion is corrected to a linear distortion as shown by the chain line in the figure. As described above, in this embodiment, the first correction magnets 7a and 7b and the second correction magnet 8a are
Due to the correction action with ~ 8d, the pincushion distortion at the top and bottom of the raster pattern is corrected to a completely linear distortion, and at the same time, it is possible to effectively correct the seagull distortion. When correcting the upper and lower pincushion distortions, the second correction magnets 8a to 8d are used.
Are located closer to the central Y-axis than the diagonal axis on the funnel side, and their magnetic fields are, as shown by the diagonal lines in Fig. 4, the peripheral parts near the upper and lower ends of the TV screen, avoiding the middle parts of the four corners. To act locally on the second correction magnet.
The influence of the magnetic fields of 8a to 8d does not affect the middle part of the television screen, particularly the S 3 point, and therefore, the reversal amount of misconvergence at the S 3 point does not become large and worse.
また、本実施例では、前記の如く、第２の補正磁石8a〜
8dの磁界によってラスターを内側（中心Ｘ軸方向）に向
けて引き寄せるが、この場合第５図において、テレビ画
面の左側では遠い方の電子銃GRから発せられるレッドＲ
のビームよりも近い側の電子銃GBから発せられるブルー
Ｂのビームの方が感度が高いのでこの感度の高いブルー
Ｂのビームの方がレッドＲのビームよりも引き寄せ量は
大きくなる。同様に、テレビ画面の右側では、ブルーＢ
のビームよりもレッドＲのビームの方が感度が高くなる
から、レッドＲのビームの方がブルーＢのビームよりも
内側に向けての引き寄せ量が大きくなる。この結果、第
５図に示すような逆クロスのミスコンバージェンス（遠
い方の電子銃のビームの方が近い方の電子銃のビームよ
りも内側にずれるクロスミスコンバージェンス）を補正
することができるという効果が得られる。In the present embodiment, as described above, the second correction magnets 8a ...
The 8d magnetic field pulls the raster toward the inside (center X-axis direction), but in this case, in FIG. 5, the red R emitted from the electron gun G R on the far left side of the TV screen is shown.
Since the blue B beam emitted from the electron gun G B on the side closer to the red beam has a higher sensitivity, the blue B beam having a higher sensitivity has a larger attracting amount than the red R beam. Similarly, on the right side of the TV screen, blue B
Since the red R beam has higher sensitivity than the red beam, the red R beam has a larger inward pulling amount than the blue B beam. As a result, it is possible to correct the reverse cross misconvergence (cross misconvergence in which the beam of the distant electron gun is displaced inward from the beam of the near electron gun) as shown in FIG. Is obtained.
上述した如く、本実地例の装置においては、テレビ画面
の上下の糸巻歪は直線状の歪に補正されるが、この補正
に際し、補正磁界がテレビ画面の上下の中央部分に影響
を及ぼすことがないから、たとえ、テレビ画面の上下の
中央部分にミスコンバージェンスが生じ、これを別途の
ミスコンバージェンス補正回路によって補正する場合に
おいても、補正磁石7a,7b,8a〜8dの磁界がミスコンバー
ジェンス補正回路の磁界と干渉することがなく、テレビ
画面上下の中央部分のミスコンバージェンスの補正を容
易に行うことができるという効果が得られる。As described above, in the device of this practical example, the pincushion distortion at the top and bottom of the television screen is corrected to a linear distortion. However, in this correction, the correction magnetic field may affect the central part at the top and bottom of the television screen. Therefore, even if misconvergence occurs in the upper and lower center parts of the TV screen and it is corrected by a separate misconvergence correction circuit, the magnetic fields of the correction magnets 7a, 7b, 8a to 8d are There is an effect that it is possible to easily correct the misconvergence in the central portion above and below the television screen without interfering with the magnetic field.
なお、本発明は上記実施例に限定されることはなく、様
々な実施の態様を採り得るものである。例えば、上記実
施例では、第１の補正磁石7a,7b及び第２の補正磁石8a
〜8dを永久磁石により構成したが、これらを電磁石によ
り構成してもよい。The present invention is not limited to the above-mentioned embodiments, and can take various modes. For example, in the above embodiment, the first correction magnets 7a and 7b and the second correction magnet 8a are
Although 8 to 8d are made of permanent magnets, they may be made of electromagnets.
また、上記実施例では、４個の永久磁石により第２の補
正磁石8a〜8dを構成しているが、６個以上の偶数の永久
磁石により第２の補正磁石を構成し、ラスターパターン
の糸巻歪をよりきめ細かく補正するようにしてもよい。Further, in the above embodiment, the second correction magnets 8a to 8d are formed by four permanent magnets, but the second correction magnets are formed by six or more even-numbered permanent magnets, and the raster pattern bobbin is wound. The distortion may be corrected more finely.
さらに、上記実施例のカラー偏向ヨーク装置では、くら
型の水平偏向コイルとトロイダル巻きの垂直偏向コイル
が使用されているが、これらカラー偏向ヨーク装置の偏
向コイルの形態は特に限定されることはなく、垂直偏向
コイルをくら型のコイルとしたものでもよい。Further, in the color deflection yoke device of the above embodiment, the paddle-shaped horizontal deflection coil and the toroidal winding vertical deflection coil are used, but the form of the deflection coil of these color deflection yoke devices is not particularly limited. The vertical deflection coil may be a saddle type coil.
本発明では偏向ヨークのファネル側の上下位置に第１の
補正磁石が設けられ、対角軸線よりも中心Ｙ軸寄りの対
角上下位置には第２の補正磁石が設けられているから、
第１の補正磁石の磁界によって上下糸巻歪の中央部分は
直線状に補正され、糸巻歪の上下の両端周辺部は第２の
補正磁石の磁界によって直線状に補正される結果、上下
糸巻歪はこれら第１の磁性磁石と第２の補正磁石の磁界
によりほぼ完璧な直線状の歪に補正することが可能とな
る。またこの上下糸巻歪の補正に際して、第２の補正磁
石は対角軸線よりも中心Ｙ軸寄りに配置されているか
ら、この第２の補正磁石の磁界がテレビ画面の上下の中
間部分、特にS3点に作用することがなく、これにより、
テレビ画面の上下の中間部分に悪影響を及ぼすことなく
前記上下糸巻歪の補正を行うことができるという優れた
効果を得ることができる。In the present invention, the first correction magnet is provided at the vertical position on the funnel side of the deflection yoke, and the second correction magnet is provided at the diagonal vertical position closer to the central Y-axis than the diagonal axis.
The central portion of the upper and lower pincushion distortions is linearly corrected by the magnetic field of the first correction magnet, and the upper and lower peripheral portions of the upper and lower pincushion distortions are linearly corrected by the magnetic field of the second correction magnet. With the magnetic fields of the first magnetic magnet and the second correction magnet, it is possible to correct the distortion to a substantially perfect linear shape. Further, in correcting the upper and lower pincushion distortion, since the second correction magnet is arranged closer to the center Y-axis than the diagonal axis, the magnetic field of the second correction magnet causes the magnetic field of the second correction magnet to be in the upper and lower intermediate portions of the TV screen, particularly S. It has no effect on 3 points,
It is possible to obtain an excellent effect that the upper and lower pincushion distortions can be corrected without adversely affecting the upper and lower intermediate portions of the television screen.
第１図は本発明に係るインライン型カラー偏向ヨーク装
置の一実施例を示す正面構成図、第２図は第１図の側面
図、第３図は本実施例における上下糸巻歪の補正作用を
示す説明図、第４図は本実施例における第２の補正磁石
の局部補正領域を示す説明図、第５図は本実施例の装置
による逆クロスミスコンバージェンスの補正作用を示す
説明図、第６図は糸巻歪のパターン図、第７図は従来の
サイド側糸巻歪の補正手段を備えた偏向ヨークの概略構
成図である。 １……偏向ヨーク、2a,2b……対角軸線、3a,3b,3c,3d…
…永久磁石、４……ボビン、5a,5b……永久磁石、６…
…垂直偏向コイル、7a,7b……第１の補正磁石、8a,8b,8
c,8d……第２の補正磁石。FIG. 1 is a front view showing an embodiment of an in-line type color deflection yoke device according to the present invention, FIG. 2 is a side view of FIG. 1, and FIG. 3 shows a correcting action of upper and lower pincushion distortion in this embodiment. FIG. 4 is an explanatory view showing a local correction area of the second correction magnet in the present embodiment, and FIG. 5 is an explanatory view showing an inverse cross-misconvergence correction action by the device of the present embodiment. FIG. 7 is a pattern diagram of the pincushion distortion, and FIG. 7 is a schematic configuration diagram of a deflection yoke having a conventional side-side pincushion distortion correcting means. 1 ... Deflection yoke, 2a, 2b ... Diagonal axis, 3a, 3b, 3c, 3d ...
… Permanent magnets, 4 ... Bobbins, 5a, 5b ... Permanent magnets, 6 ...
... Vertical deflection coil, 7a, 7b ... 1st correction magnet, 8a, 8b, 8
c, 8d …… Second correction magnet.
Claims (1)
側の中央上下位置には陰極線管の画面の中央部分の上下
糸巻歪を直線状に補正する一対の第１の補正磁石が設け
られ、上位置の第１の補正磁石は陰極線管の画面側から
見て左側がＳ極に、右側がＮ極に着磁され、下位置の第
１の補正磁石は陰極線管の両面側から見て左側がＮ極
に、右側がＳ極に着磁されており、また、前記ファネル
側の対角軸線よりも中心Ｙ軸寄りの対角上下位置には陰
極線管の画面の対角周辺部の上下糸巻歪を直線状に補正
する少なくとも４個の第２の補正磁石が設けられ、陰極
線管の画面側から見て上位置の第１の補正磁石の左右に
位置する第２の補正磁石は左側がＮ極に、右側がＳ極に
着磁され、陰極線管の画面側から見て下位置の第１の補
正磁石の左右に位置する第２の補正磁石は左側がＳ極
に、右側がＮ極に着磁されているインライン型カラー偏
向ヨーク装置。1. A pair of first correction magnets for linearly correcting the vertical pincushion distortion in the central portion of the screen of the cathode ray tube are provided at the upper and lower positions of the center of the funnel side of the in-line type color deflection yoke. The first correction magnet is magnetized to the S pole on the left side and the N pole on the right side when viewed from the screen side of the cathode ray tube, and the first correction magnet in the lower position is the N pole on the left side when viewed from both sides of the cathode ray tube. The right side is magnetized to the S pole, and the vertical pincushion distortion in the diagonal peripheral portion of the screen of the cathode ray tube is linear at the diagonal upper and lower positions closer to the center Y axis than the diagonal axis on the funnel side. At least four second correction magnets for correcting the shape are provided, and the left side of the second correction magnets located on the left and right of the first correction magnet in the upper position when viewed from the screen side of the cathode ray tube is the N pole on the left side, The right side is magnetized to the S pole and is positioned to the left and right of the first correction magnet at the lower position when viewed from the screen side of the cathode ray tube. That the second correction magnet on the left side S-pole, line type color deflection yoke apparatus right side is magnetized to the N pole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1023425A JPH0740473B2 (en) | 1989-02-01 | 1989-02-01 | In-line type color deflection yoke device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1023425A JPH0740473B2 (en) | 1989-02-01 | 1989-02-01 | In-line type color deflection yoke device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02204947A JPH02204947A (en) | 1990-08-14 |
| JPH0740473B2 true JPH0740473B2 (en) | 1995-05-01 |
Family
ID=12110151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1023425A Expired - Lifetime JPH0740473B2 (en) | 1989-02-01 | 1989-02-01 | In-line type color deflection yoke device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0740473B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5783901A (en) * | 1994-09-05 | 1998-07-21 | Matsushita Electronics Corporation | Deflection yoke with a core having a higher magnetic reluctance at the top and bottom portions than the sides |
| TW378336B (en) * | 1996-03-21 | 2000-01-01 | Matsushita Electron Co Ltd | A compensating device for raster distortion of CRT |
| JP2003068229A (en) * | 2001-08-24 | 2003-03-07 | Toshiba Corp | Deflection yoke device |
| KR20060091895A (en) | 2005-02-16 | 2006-08-22 | 삼성에스디아이 주식회사 | Deflection yoke for cathode ray tube |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58135855U (en) * | 1982-03-10 | 1983-09-12 | 三洋電機株式会社 | deflection yoke |
| JPH0620280Y2 (en) * | 1987-02-03 | 1994-05-25 | 株式会社村田製作所 | Deflection-yoke device |
-
1989
- 1989-02-01 JP JP1023425A patent/JPH0740473B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02204947A (en) | 1990-08-14 |
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