JPS6280947A - Deflection yoke - Google Patents
Deflection yokeInfo
- Publication number
- JPS6280947A JPS6280947A JP22002485A JP22002485A JPS6280947A JP S6280947 A JPS6280947 A JP S6280947A JP 22002485 A JP22002485 A JP 22002485A JP 22002485 A JP22002485 A JP 22002485A JP S6280947 A JPS6280947 A JP S6280947A
- Authority
- JP
- Japan
- Prior art keywords
- auxiliary coil
- coil
- deflection
- deflection yoke
- auxiliary
- 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
Abstract
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は、カラーテレビあるいはカラーディスプレイブ
ラウン管用偏向ヨークに係り、特にコマ収差（インライ
ン電子銃で中心ビームとサイドビームのラスターずれ）
というミスコンバーゼンス補正に好適な手段をもつ偏向
ヨークに関する。[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a deflection yoke for color televisions or color display cathode ray tubes, and particularly for coma aberration (raster deviation between the center beam and side beams in an in-line electron gun).
The present invention relates to a deflection yoke having means suitable for correcting misconvergence.
従来の装置は実願昭５８−１３２２０３号明細書に記載
のように電子銃側後方に水平方向に相対向する１対のＥ
字形磁性材を配電し、該Ｅ字形磁性材の中心部、及びサ
イド部に垂直偏向コイル用の補助コイルを設は該補助コ
イルに垂直偏向電流を流すととＫより、６極磁界を形成
し画面上／下部のコマ収差というミスコンバーゼンス補
正する方法であり１本方法によれば補正コイルが３組必
要であり、かつカラーディスプレイブラウン管と偏向ヨ
ークの組合せによるバラツキについては考慮されていな
かった。As described in Utility Model Application No. 58-132203, the conventional device has a pair of E which are horizontally opposed to each other at the rear of the electron gun side.
When power is distributed to the E-shaped magnetic material, and auxiliary coils for the vertical deflection coil are provided in the center and side portions of the E-shaped magnetic material, when a vertical deflection current is passed through the auxiliary coil, a six-pole magnetic field is formed. This is a method of correcting misconvergence of coma aberration at the top/bottom of the screen, and the one-piece method requires three sets of correction coils, and does not take into account variations due to the combination of the color display cathode ray tube and the deflection yoke.
以下、上記明細書に記載の従来技術について図を参照し
て説明する。Hereinafter, the conventional technology described in the above specification will be explained with reference to the drawings.
第１０図は一般的な偏向ヨークを示す斜視図である。同
図？（おいて、１は偏向ヨーク、２は水平偏向コイル、
３は垂直偏向コイル、４は主コア、５はセパレータ、６
はクリップである。FIG. 10 is a perspective view showing a general deflection yoke. Same figure? (where 1 is a deflection yoke, 2 is a horizontal deflection coil,
3 is a vertical deflection coil, 4 is a main core, 5 is a separator, 6
is a clip.
第１１図は垂直偏向コイル３の断面図である。FIG. 11 is a sectional view of the vertical deflection coil 3.
同図において、７は磁力線、 ８．８Ｒ，８Ｇ、８Ｂは
電子ビーム、９は垂直方向の中心線、１０は垂直方向の
偏向力である。In the figure, 7 is a line of magnetic force, 8.8R, 8G, and 8B are electron beams, 9 is a vertical center line, and 10 is a vertical deflection force.
上記磁界のうち、垂直偏向コイル３のバレル形磁界とい
うのは、第１１図に示すように、偏向ヨークの垂直方向
の中心線９付近の巻線が両端部に比較して疎になってい
るため、中心に位置する緑色（Ｇ用の電子ビーム８Ｇは
１両端に位置する赤色■、青色の）用の電子ビーム８Ｒ
、８Ｂに比較して実質的に偏向量ｌＯが減少することに
なり。Among the above magnetic fields, the barrel-shaped magnetic field of the vertical deflection coil 3 is such that the windings near the vertical center line 9 of the deflection yoke are sparser than those at both ends, as shown in FIG. Therefore, the green electron beam 8R located in the center (electron beam 8G for G is 1, red ■, blue located at both ends)
, 8B, the deflection amount lO is substantially reduced.
１１Ｅ１２図のラスタパターンに示すようＫＧのラスＪ
１２ＧはＲ，Ｂのラスタ１２Ｒ、１２Ｂに比較して内側
になるいわゆるコマ収差と呼ばれるミスコンバーゼンス
１７を生じる結果となる。As shown in the raster pattern in Figure 11E12, KG's lath J
12G results in a misconvergence 17 called so-called coma aberration, which is located inside compared to the R and B rasters 12R and 12B.
第１３図は、従来のコマ収差調整機能をもつ偏向ヨーク
の斜視図である。垂直偏向コイル３の電子銃側に副コア
２１を設け、そこに補助コイル１５が捲回されているこ
とが認められるであろう。FIG. 13 is a perspective view of a conventional deflection yoke having a coma aberration adjustment function. It will be appreciated that the auxiliary core 21 is provided on the electron gun side of the vertical deflection coil 3, and the auxiliary coil 15 is wound therein.
第１４図は第１３ｒｇＪにおける副コア２１とそこに捲
回された補助コイル１５を示す正面図である。FIG. 14 is a front view showing the sub-core 21 and the auxiliary coil 15 wound therein in the 13th rgJ.
これらの図から分かるように、水平方向の中心軸１６付
近と垂直方向の中心軸に対する角度αがほぼ３０°にな
る付近に突起２２を形成し、磁束を導き強めるようにし
７ている。また副コアはＥ形に形成している。As can be seen from these figures, protrusions 22 are formed in the vicinity of the horizontal central axis 16 and in the vicinity where the angle α with respect to the vertical central axis is approximately 30°, so as to guide and strengthen the magnetic flux 7. Further, the sub-core is formed in an E-shape.
ｋｌ、て補助コイル１５１７１ｍ垂直偏向′宅流を流す
ことくより６極磁界を形完し１画面上／下部のコマ収差
を補正するのであるが０本方法によれば補正コイルが３
組必要であり、かつカラーディスプレイブラウン管（Ｃ
ＰＴ）と偏向ヨーク（ＤＹ）の組合せによるバラツキに
ついては考慮されていないものであった。kl, the auxiliary coil 15171m Vertical deflection'The 6-pole magnetic field is completed by passing the current, and the coma aberration at the top/bottom of the screen is corrected, but according to the 0-wire method, the correction coil is 3
A set of color display cathode ray tubes (C
Variations due to the combination of the deflection yoke (DY) and the deflection yoke (PT) were not considered.
本発明の目的は画面上側、下側のコマ収差を簡便に補正
１−１かつ該コマ収差を可変可能とした偏向ヨークを提
供することにもろ。An object of the present invention is to provide a deflection yoke that can easily correct coma aberration on the upper and lower sides of the screen (1-1) and that can vary the coma aberration.
Ｉ−、記目的達成のため１本発明による偏向ヨークは、
インライン配列の多電子銃を有するカラーブラウン管用
の偏向ヨークであって、水平偏向コイルの電子銃側（後
方）に水平方向に対向する１対の磁性体からなるＥ字形
磁性材を配置しＪ該Ｅ字形磁性体の中心部に垂直偏向コ
イル用の・補助コイルを設け、かつ該補助コイルと並列
に可変抵抗を接続し、該補助コイルに垂直偏向電流を流
すことにより６極磁界を形成し、コマ収差を補正及び可
変できるようにしたことを特徴としている。I-.1 The deflection yoke according to the present invention has the following features:
This is a deflection yoke for color cathode ray tubes having multiple electron guns in an in-line arrangement, in which an E-shaped magnetic material consisting of a pair of horizontally opposing magnetic materials is arranged on the electron gun side (backward) of the horizontal deflection coil. An auxiliary coil for the vertical deflection coil is provided in the center of the E-shaped magnetic body, a variable resistor is connected in parallel with the auxiliary coil, and a six-pole magnetic field is formed by flowing a vertical deflection current through the auxiliary coil. It is characterized by being able to correct and vary coma aberration.
以下１本発明の実施例を図により説明する。 An embodiment of the present invention will be described below with reference to the drawings.
第１回は６本発明のコマ収差補正用補助コイル１５を設
けた偏向ヨークの側面図である。本補正用補助コイル１
５は水平偏向コイルの電子銃側後方に配置されており、
該補助コイル１５の断面図を第２図に示す。The first part is a side view of a deflection yoke provided with six coma aberration correction auxiliary coils 15 of the present invention. Auxiliary coil 1 for main correction
5 is placed behind the horizontal deflection coil on the electron gun side.
A cross-sectional view of the auxiliary coil 15 is shown in FIG.
Ｅ字形磁性材２１が水平方向１６に対向する様に配置さ
れ、該Ｅ字形磁性材２１の中心部に補助コイル１５が巻
線されたものである。該補助コイル１５は第３図に示す
様に垂直コイル３と直列に接続され、又該補助コイル１
５と並列に可変抵抗１３が接続され該補助コイル１５に
流れる電流を可変するものである。E-shaped magnetic members 21 are arranged to face each other in the horizontal direction 16, and an auxiliary coil 15 is wound around the center of the E-shaped magnetic members 21. The auxiliary coil 15 is connected in series with the vertical coil 3 as shown in FIG.
A variable resistor 13 is connected in parallel with the auxiliary coil 15 to vary the current flowing through the auxiliary coil 15.
第４図〜第６図に該コイルによる磁界分布を示しである
。第５図はサイド電子ビーム８Ｂ 、 ８Ｒが垂直偏向
の初期においては、偏向方向と逆方向の偏向力ｌＯを受
は例えば上側に偏向する場合サイドビーム８Ｂ 、 ８
Ｒは中心ビーム８Ｇに比べて見掛は上、下側に位置した
配置となる。そして徐々に偏向され第６図の様な位置に
電子ビーム８Ｂ、。FIGS. 4 to 6 show the magnetic field distribution due to the coil. FIG. 5 shows that in the initial stage of vertical deflection, the side electron beams 8B, 8R receive a deflection force lO in the opposite direction to the deflection direction, for example, when the side electron beams 8B, 8R are deflected upward.
R is apparently positioned above and below the center beam 8G. Then, the electron beam 8B is gradually deflected to a position as shown in FIG.
８Ｇ、８Ｒがくればピンクッシ薦ン磁界の為に中心ビー
ム８Ｇはサイドビーム８Ｂ 、 ８Ｒよりも大きな偏向
力１０を受ける。その為に第１２図の様な中心ビームラ
スター１２Ｇとサイドビームラスター１２Ｂ。When 8G and 8R arrive, the center beam 8G receives a larger deflection force 10 than the side beams 8B and 8R due to the pincushion magnetic field. For that purpose, a center beam raster 12G and a side beam raster 12B as shown in Fig. 12 are used.
１２Ｒの中心とのズレ量（以下コマ収差という）は補正
され、第７図から第９図のようなミスコンバーゼンスパ
ターントナル。The amount of deviation from the center of 12R (hereinafter referred to as coma aberration) is corrected, resulting in a misconvergence pattern tonal as shown in FIGS. 7 to 9.
第７図の様な場合は補正量の不足であり、第３図の可変
抵抗１３を大きくする事により第９図のミスコンバーゼ
ンスパターンとなる。In the case shown in FIG. 7, the amount of correction is insufficient, and by increasing the variable resistor 13 shown in FIG. 3, the misconvergence pattern shown in FIG. 9 is obtained.
第８図の様な場合は補正量オーバーであり。In the case shown in Figure 8, the amount of correction is over.
同じ様に第３図の可変抵抗１３を小さくする事により第
９図のミスコンバーゼンスパターンとなる。Similarly, by reducing the variable resistor 13 shown in FIG. 3, the misconvergence pattern shown in FIG. 9 is obtained.
又、第７図、第８図の如く補正量が最適でない場合には
補助コイル１５の巻数及びＥ字形磁性材２１の形状（磁
性材の厚さ又は内径）の清適化により最良なミスコンバ
ーゼンスパターンをえる事ができる。If the amount of correction is not optimal as shown in FIGS. 7 and 8, the best misconvergence can be achieved by optimizing the number of turns of the auxiliary coil 15 and the shape of the E-shaped magnetic material 21 (thickness or inner diameter of the magnetic material). You can get patterns.
本発明によれば、ＣＰＴ内部に備えるコマ収差補正用の
磁界制御素子を不要化することができるとともに、ＣＰ
Ｔと偏向ヨークとの組合せ該差によるコマ収差を可変調
整でき、コンバーゼンス品位の良い画像を得るため実用
上有効な偏向ヨークを提供できる。According to the present invention, it is possible to eliminate the need for a magnetic field control element for coma aberration correction provided inside the CPT, and
Combination of the T and the deflection yoke makes it possible to variably adjust the coma aberration caused by the difference, and to provide a practically effective deflection yoke for obtaining an image with good convergence quality.
第１−は本発明によるコマ収差調整機能をもつ偏向ヨー
クの斜視図、第２図は第１図忙おけるＥ字形コアとそこ
に捲回される補助コイルを示す正面図、第３図は補助コ
イル、垂直偏向コイル、可変抵抗の接続図、第４図は＠
２図の磁力線分布図、第５図、第６図は本原理説明図。
第７図、第８図、第９図は本発明の方法忙よるミスコン
バーゼンス補正後のパターン図、第１０図は従来の偏向
ヨークを示す斜視図、第１１図は第１０図における垂直
偏向コイルの断面図、第１２図はコマ収差を表すラスタ
ーパターン図、第１３図は従来のコマ収差調整機能をも
つ偏向ヨークの斜視図、第１４図はＥ字形コアとそこに
捲回される補助コイルを示す正面図である。
ｌ・・・偏向ヨーク、 ２・・・水平偏向コイル。
３・・・垂直偏向コイル、 ４・・・コア。
５・・・セパレーター、 ７・・・垂直偏向磁界。
８ 、８Ｒ、８Ｇ 、 ８Ｂ・・・電子ビーム。
１３・・・可変抵抗、１５・・・補助コイル。
２１・・・Ｅ字形磁性材。
第２Ｚ 躬ｆ 口
第５山 躬６図
年月口
呆Ｉ４０
躬１２日
第１３圀Figure 1 is a perspective view of a deflection yoke with a coma aberration adjustment function according to the present invention, Figure 2 is a front view showing the E-shaped core shown in Figure 1 and the auxiliary coil wound around it, and Figure 3 is an auxiliary coil. The connection diagram of the coil, vertical deflection coil, and variable resistor, Figure 4 is @
Figure 2 is a magnetic field line distribution diagram, and Figures 5 and 6 are diagrams explaining the principle of the invention. 7, 8, and 9 are pattern diagrams after misconvergence correction according to the method of the present invention, FIG. 10 is a perspective view showing a conventional deflection yoke, and FIG. 11 is a vertical deflection coil in FIG. 10. Fig. 12 is a raster pattern diagram representing coma aberration, Fig. 13 is a perspective view of a conventional deflection yoke with a coma aberration adjustment function, and Fig. 14 shows an E-shaped core and an auxiliary coil wound around it. FIG. l...Deflection yoke, 2...Horizontal deflection coil. 3... Vertical deflection coil, 4... Core. 5...Separator, 7...Vertical deflection magnetic field. 8, 8R, 8G, 8B...electron beam. 13...Variable resistance, 15...Auxiliary coil. 21...E-shaped magnetic material. Part 2
Claims (1)
管用の偏向ヨークにおいて、水平偏向コイルの電子銃側
後方に水平方向に相対向する１対のＥ字形磁性体を配置
し、該Ｅ字形磁性体の中心部に垂直偏向コイル用の補助
コイルを設け、かつ概補助コイルと並列に可変抵抗を接
続し、該補助コイルに垂直偏向電流を流すことにより形
成される６極磁界を前記抵抗を可変調節して調整可能に
したことを特徴とする偏向ヨーク。1. In a deflection yoke for a color cathode ray tube having multiple electron guns in an in-line arrangement, a pair of E-shaped magnetic bodies facing each other in the horizontal direction is arranged behind the electron gun side of the horizontal deflection coil, and the E-shaped magnetic bodies are An auxiliary coil for the vertical deflection coil is provided in the center, a variable resistor is connected approximately in parallel with the auxiliary coil, and the six-pole magnetic field formed by flowing a vertical deflection current through the auxiliary coil is variably adjusted by the resistor. A deflection yoke characterized by being adjustable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22002485A JPS6280947A (en) | 1985-10-04 | 1985-10-04 | Deflection yoke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22002485A JPS6280947A (en) | 1985-10-04 | 1985-10-04 | Deflection yoke |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6280947A true JPS6280947A (en) | 1987-04-14 |
Family
ID=16744737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22002485A Pending JPS6280947A (en) | 1985-10-04 | 1985-10-04 | Deflection yoke |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6280947A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0330348U (en) * | 1989-08-02 | 1991-03-26 | ||
| KR20010112059A (en) * | 2000-06-13 | 2001-12-20 | 이형도 | Beam deflection system and color tube |
-
1985
- 1985-10-04 JP JP22002485A patent/JPS6280947A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0330348U (en) * | 1989-08-02 | 1991-03-26 | ||
| KR20010112059A (en) * | 2000-06-13 | 2001-12-20 | 이형도 | Beam deflection system and color tube |
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