JPS63307648A - Deflection yoke device - Google Patents
Deflection yoke deviceInfo
- Publication number
- JPS63307648A JPS63307648A JP14390287A JP14390287A JPS63307648A JP S63307648 A JPS63307648 A JP S63307648A JP 14390287 A JP14390287 A JP 14390287A JP 14390287 A JP14390287 A JP 14390287A JP S63307648 A JPS63307648 A JP S63307648A
- Authority
- JP
- Japan
- Prior art keywords
- pair
- distortion
- coil bobbin
- peripheral distortion
- 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.)
- Pending
Links
- 230000002093 peripheral effect Effects 0.000 claims abstract description 28
- 238000010894 electron beam technology Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 description 2
- 241000226585 Antennaria plantaginifolia Species 0.000 description 1
- 241000190020 Zelkova serrata Species 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は、テレピジミン受像機、ディスプレイ装置等に
用いられる偏向ヨーク装置に闇し、特に、後述するsp
管と呼ばれる形式の陰極線管に発生する周辺歪を′低減
させるための偏向ヨーク装置に関する。[Detailed Description of the Invention] <Industrial Field of Application> The present invention relates to deflection yoke devices used in telepicture receivers, display devices, etc.
The present invention relates to a deflection yoke device for reducing peripheral distortion occurring in a type of cathode ray tube called a tube.
〈従来の技術〉
一般に、インライン配列の3電子ビームを有するカラー
陰極線管に装着して電子ビームを偏向する偏向ヨーク装
置は、水平偏向コイルが全体としてビンクッション磁界
となり、また、垂直偏向コイルがバレル磁界となるよう
に構成することにより、理論的にはミスコンバージェン
スを零にすることができる。しかし、実際には陰極線管
の構造、偏向ヨーク装置の構造から、理論上の特性を得
ることは困難であり、現実には種々の態様のミスコンバ
ージェンスが発生する。<Prior art> In general, in a deflection yoke device that is attached to a color cathode ray tube having three electron beams arranged in-line to deflect the electron beam, the horizontal deflection coil as a whole serves as a bin cushion magnetic field, and the vertical deflection coil serves as a barrel cushion magnetic field. The misconvergence can theoretically be reduced to zero by configuring it to create a magnetic field. However, in reality, it is difficult to obtain theoretical characteristics from the structure of the cathode ray tube and the structure of the deflection yoke device, and various types of misconvergence occur in reality.
一方、陰極線管の大型化、平面化に伴って、sp管が多
用されるようになってきた。このsp管は、−例として
、半径IRの球面からなる標準管と、標準管に比べて2
倍の半径2Rの平坦状球面を有する11!4!i線管(
以下、FS管という)を組合せ、画面中央部分をFS管
の形状とし、画面周辺部分を標準管の球面形状とした陰
極線管をいうものである。On the other hand, as cathode ray tubes have become larger and flatter, SP tubes have come into widespread use. This sp tube is, for example, a standard tube consisting of a spherical surface with radius IR, and a
11!4! has a flat spherical surface with twice the radius of 2R! i-ray tube (
This is a cathode ray tube in which the central part of the screen has the shape of an FS tube, and the peripheral part of the screen has the spherical shape of a standard tube.
そして、陰極線管をsp管として構成した場合、画面の
上、下部に球面形状に伴い、第5図(イ)に示すように
、シーガル歪と呼ばれるかもめ形に屈曲した歪Sが発生
してしまうことが知られている。When a cathode ray tube is configured as an SP tube, the spherical shape at the top and bottom of the screen causes seagull-shaped distortion S called seagull distortion, as shown in Figure 5 (a). It is known.
このため、従来技術においては、このシーガル歪Sを補
正するために、偏向ヨークの前部拡大部の上、下位置に
磁性材料からなるクロスアーム、或は、補正マグネット
等からなるシーガル歪補正手段30.31を設け、画面
の上、下中央部分に発生しているピンクッション至上バ
レル形となるように図中矢示32方向に引張り、シーガ
ル歪Sを補正していた。Therefore, in the prior art, in order to correct this seagull distortion S, cross arms made of magnetic material or seagull distortion correction means made of correction magnets are installed above and below the enlarged front part of the deflection yoke. 30.31 was provided, and the Seagull distortion S was corrected by pulling it in the direction of arrow 32 in the figure so as to form a pincushion top barrel shape that occurs in the upper and lower center portions of the screen.
〈発明が解決しようとする問題点〉
しかしながら、シーガル歪Sを補正するために、シーガ
ル歪補正手段30.31を用いた場合、第5図(ロ)に
示すように、画面の上、下中央部分のビンクッション歪
は平坦に補正されるが、画面上、下位置の左、右周辺部
分、および、中間部の左、右両端に垂下りの歪が残ると
いう問題点があった。<Problems to be Solved by the Invention> However, when the Seagull distortion correction means 30.31 is used to correct the Seagull distortion S, as shown in FIG. Although the bin cushion distortion in the area is corrected to be flat, there is a problem in that drooping distortion remains at the left and right peripheral areas of the upper and lower positions of the screen, and at both left and right ends of the middle area.
本発明はこのような従来技術の問題点に鑑みなされたも
ので、SP管に特有なシーガル歪のうち画面の上、下周
辺部に垂下るように発生する周辺歪、または、クロスア
ームや補正マグネットを用いた場合に、画面の上、下周
辺部や中間部周辺に発生する周辺歪等を確実に補正でき
るようにした偏向ヨーク装置を提供することを目的とす
る。The present invention has been made in view of the problems of the prior art, and is intended to solve the problem of seagull distortion peculiar to SP tubes, which occurs in the upper and lower periphery of the screen, or by cross arm and correction. It is an object of the present invention to provide a deflection yoke device that can reliably correct peripheral distortions that occur around the upper, lower, and middle portions of a screen when magnets are used.
く問題点を解決するための手段〉
本発明の偏向ヨーク装置は上記問題点を解決するために
なされたもので、コアと、コアに沿って設けられた一対
の水平偏向コイルおよび垂直偏向コイルと、水平偏向コ
イルと重置偏向コイルとの間に設けられ、両コイルの保
持と絶縁を行なうコイルボビンとからなる偏向ヨーク装
置において、コイルボビンの前部拡大部の外面上で水平
軸上の対角位置に、少なくとも一対の周辺歪補正用の棒
状マグネットを設けてなるものである。Means for Solving the Problems> The deflection yoke device of the present invention has been made to solve the above problems, and includes a core, a pair of horizontal deflection coils and a vertical deflection coil provided along the core. , in a deflection yoke device consisting of a coil bobbin that is provided between a horizontal deflection coil and a superimposed deflection coil and that holds and insulates both coils, a diagonal position on the horizontal axis on the outer surface of the front enlarged part of the coil bobbin. and at least one pair of rod-shaped magnets for peripheral distortion correction.
く作用〉
コイルボビンの前部拡大部の外面上で水平軸上の対角位
置に、少なくとも一対の周辺歪補正用の棒状マグネット
を設けたもので、マグネットから発生する磁界により画
面の左右上、下部において電子ビームに力が加わり、垂
下りの周辺歪を平坦にしでなるものである。At least one pair of rod-shaped magnets for peripheral distortion correction is installed on the outer surface of the front enlarged part of the coil bobbin at diagonal positions on the horizontal axis. A force is applied to the electron beam at the point where the peripheral distortion of the droop is flattened.
〈実施例〉
以下、本発明偏向ヨーク装置の一実施例を図面を用いて
詳細に説明する。第1図、第2図において、1は偏向ヨ
ーク本体で、偏向ヨーク本体1は、半環状コア部材を接
合してなるコア2と、コア2の内面側に配設された一対
のくら型の水平偏向コイル3,3と、コア2にトロイダ
ル状に巻回された一対の重置偏向コイル4.4と、コア
2の内面側に配設され、水平偏向コイル3,3、垂直偏
向コイル4.4を保持するとともに、水平偏向コイル3
,3と重置偏向コイル4,4との間の絶縁を確保するた
めの一対の半割状ボビンを衝合してなるコイルボビン5
とから大略構成される。偏向ヨーク本体1を構成するコ
イルボビン5の前部拡大部5Aの上、下端外周面にはシ
ーガル歪補正手段としての補正マグネット6.6が固定
される。ここで、各補正マグネット6は、第5図(イ)
に示すシーガル歪補正手段30.31と同様の機能を有
し、シーガル歪Sの中間部分に生じるピンクッション至
上バレル形に補正するものである。シーガル歪補正手段
としての補正マグネット6.6が固着されたコイルボビ
ン5の前部拡大部5Aの水平軸上、つまり左右の外周面
上の対角位置には、一対の周辺歪補正用の棒状マグネッ
ト7.7が水平軸に対して直交上に設けられる。棒状マ
グネット7.7は第2図に示す極性に着磁した状態、つ
まり異磁極同志を対向させた状態で、コイルボビン5の
前部拡大部5Aの外周面上に接着、或は、前部拡大部5
Aに設けた収納部(図示せず)を介して取着固定がなさ
れるものである。<Embodiment> Hereinafter, one embodiment of the deflection yoke device of the present invention will be described in detail with reference to the drawings. In FIGS. 1 and 2, 1 is a deflection yoke main body, and the deflection yoke main body 1 includes a core 2 formed by joining semi-annular core members, and a pair of saddle-shaped parts arranged on the inner surface of the core 2. Horizontal deflection coils 3, 3, a pair of overlapping deflection coils 4.4 wound toroidally around the core 2, horizontal deflection coils 3, 3, and vertical deflection coils 4 arranged on the inner surface of the core 2. .4 and horizontal deflection coil 3.
, 3 and the overlapping deflection coils 4, 4, a coil bobbin 5 is formed by abutting a pair of half-split bobbins.
It is roughly composed of. A correction magnet 6.6 serving as Seagull distortion correction means is fixed to the upper and lower outer peripheral surfaces of the enlarged front portion 5A of the coil bobbin 5 constituting the deflection yoke main body 1. Here, each correction magnet 6 is
It has the same function as the Seagull distortion correction means 30 and 31 shown in FIG. On the horizontal axis of the enlarged front portion 5A of the coil bobbin 5, to which the correction magnet 6.6 as Seagull distortion correction means is fixed, a pair of rod-shaped magnets for peripheral distortion correction are located at diagonal positions on the horizontal axis, that is, on the left and right outer peripheral surfaces. 7.7 is provided perpendicular to the horizontal axis. The rod-shaped magnet 7.7 is magnetized with the polarity shown in FIG. 2, that is, with different magnetic poles facing each other, and is adhered to the outer peripheral surface of the front enlarged portion 5A of the coil bobbin 5, or is attached to the front enlarged portion 5A. Part 5
It is attached and fixed via a storage section (not shown) provided in A.
斯かる構成の偏向ヨーク装置において、第4図(イ)に
示す画面上の周辺歪10を補正する際の動作を以下に説
明する。偏向ヨーク本体1のコイルボビン5の前部拡大
部5Aの外周面上に取着固定された棒状マグネット7に
よって発生する磁力線ψは、第3図に示すように、棒状
マグネット7のN極から発生してS極に至るもので、磁
力線ψによる磁力をBとすると、電子ビームは磁力Bに
よって、画面の下部では下方向の力F1を受け、また、
画面の上部では上方向の力F2を受けることになる。従
って、電子ビームは力F1− F2によって画面の下部
では下方向に曲げられ、画面の上部では上方向に曲げら
れ、第4図(イ)に示す画面の周辺歪10は矢印方向に
補正され、第4図(ロ)に示す如く、周辺歪のない正常
な画面を得ることができるものである。ここで、第3図
中、1は電子ビー・ムによる電流の向きを示すものであ
る。In the deflection yoke device having such a configuration, the operation when correcting the peripheral distortion 10 on the screen shown in FIG. 4(A) will be described below. As shown in FIG. 3, the lines of magnetic force ψ generated by the rod-shaped magnet 7 fixed on the outer peripheral surface of the front enlarged portion 5A of the coil bobbin 5 of the deflection yoke main body 1 are generated from the N pole of the rod-shaped magnet 7. If the magnetic force due to the lines of magnetic force ψ is B, the electron beam receives a downward force F1 at the bottom of the screen due to the magnetic force B, and
At the top of the screen, an upward force F2 is applied. Therefore, the electron beam is bent downward at the bottom of the screen and upward at the top of the screen by the force F1-F2, and the peripheral distortion 10 of the screen shown in FIG. 4(a) is corrected in the direction of the arrow. As shown in FIG. 4(b), a normal screen without peripheral distortion can be obtained. Here, in FIG. 3, numeral 1 indicates the direction of the current caused by the electron beam.
尚、本発明偏向ヨーク装置の一実施例においては、周辺
歪補正用の棒状マグネットをコイルボビンの前部拡大部
の外周面上に設けるものについて述べたが、前部拡大部
の水平軸上の外面上であれば棒状マグネットの設置位置
は実施例に限定されず、例えば、コイルボビンの前部拡
大部の背面に位置して設けても良いものである。また、
棒状マグネットの設置数も一対(2個)に限定されず、
必要に応じて適宜に増加することができるものである。In one embodiment of the deflection yoke device of the present invention, a rod-shaped magnet for peripheral distortion correction is provided on the outer peripheral surface of the front enlarged part of the coil bobbin. As long as it is on the top, the installation position of the rod-shaped magnet is not limited to the example, and may be placed, for example, on the back side of the enlarged front part of the coil bobbin. Also,
The number of bar magnets installed is not limited to one pair (two),
The number can be increased as needed.
〈発明の効果〉
本発明の偏向ヨーク装置は以上詳細に述べたとおりであ
り、以下に示す効果を有するものである。<Effects of the Invention> The deflection yoke device of the present invention has been described in detail above, and has the following effects.
つまり、棒状マグネットによって発生する磁力線の作用
により、画面の上、下部の周辺部で電子ビームに対して
周辺歪を補正する方向の力を与えるもので、周辺歪の補
正を確実に行なうことができ、常に良好な画面特性を得
ることができるもので、特に、SP管に適用して有効と
なるものである。In other words, the action of the magnetic lines of force generated by the bar magnet applies a force in the direction of correcting the peripheral distortion to the electron beam at the upper and lower peripheral areas of the screen, making it possible to reliably correct the peripheral distortion. , it is possible to always obtain good screen characteristics, and it is particularly effective when applied to SP tubes.
また、一対の棒状マグネットを用いるのみの簡単な構成
で周辺歪の補正がなされ、その上、棒状マグネットの偏
向ヨーク本体に対する取付けも簡単となるもので、コス
トダウン、作業性の向上がなされるものである。In addition, peripheral distortion can be corrected with a simple configuration using only a pair of rod-shaped magnets, and in addition, the rod-shaped magnet can be easily attached to the deflection yoke body, reducing costs and improving workability. It is.
第1図は本発明偏向ヨーク装置の一実施例における側面
図、第2図は第1図の背面図、第3図は本発明偏向ヨー
ク装置の一実施例における棒状マグネットによる周辺歪
の補正原理を示す説明図、第4図(イ)は画面上、下部
の周辺歪の状態を示すシーガル歪とこれを補正する補正
手段の関係を示す説明図、第5図(ロ)は補正手段によ
る補正後の状態を示す説明図である。
1・・・偏向ヨーク本体、2・・・コア、3.3・・・
水平偏向コイル、4.4・・・垂直偏向コイル、5・・
・コイルボビン、5A・・・前部拡大部、7.7・・・
欅試マグネット、FIG. 1 is a side view of an embodiment of the deflection yoke device of the present invention, FIG. 2 is a back view of FIG. Figure 4 (a) is an explanatory diagram showing the relationship between seagull distortion that shows the condition of peripheral distortion at the top and bottom of the screen and the correction means that corrects it, and Figure 5 (b) is the correction by the correction means. It is an explanatory view showing a subsequent state. 1... Deflection yoke body, 2... Core, 3.3...
Horizontal deflection coil, 4.4 Vertical deflection coil, 5...
・Coil bobbin, 5A...Front enlarged part, 7.7...
Keyaki test magnet,
Claims (1)
ルおよび垂直偏向コイルと、該水平偏向コイルと垂直偏
向コイルとの間に設けられ、両コイルの保持と絶縁を行
なうコイルボビンとからなる偏向ヨーク装置において、
前記コイルボビンの前部拡大部の外面上で水平軸上の対
角位置に、少なくとも一対の周辺歪補正用の棒状マグネ
ットを設けたことを特徴とする偏向ヨーク装置。A deflection device consisting of a core, a pair of horizontal and vertical deflection coils provided along the core, and a coil bobbin provided between the horizontal and vertical deflection coils to hold and insulate both coils. In the yoke device,
A deflection yoke device characterized in that at least one pair of rod-shaped magnets for peripheral distortion correction is provided on the outer surface of the front enlarged portion of the coil bobbin at diagonal positions on the horizontal axis.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14390287A JPS63307648A (en) | 1987-06-09 | 1987-06-09 | Deflection yoke device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14390287A JPS63307648A (en) | 1987-06-09 | 1987-06-09 | Deflection yoke device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS63307648A true JPS63307648A (en) | 1988-12-15 |
Family
ID=15349724
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14390287A Pending JPS63307648A (en) | 1987-06-09 | 1987-06-09 | Deflection yoke device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS63307648A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5177399A (en) * | 1988-06-27 | 1993-01-05 | Kabushiki Kaisha Toshiba | Color cathode ray tube apparatus |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6241654B2 (en) * | 1980-12-29 | 1987-09-03 | Kureha Chemical Ind Co Ltd |
-
1987
- 1987-06-09 JP JP14390287A patent/JPS63307648A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6241654B2 (en) * | 1980-12-29 | 1987-09-03 | Kureha Chemical Ind Co Ltd |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5177399A (en) * | 1988-06-27 | 1993-01-05 | Kabushiki Kaisha Toshiba | Color cathode ray tube apparatus |
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