JP3334861B2 - Deflection yoke - Google Patents
Deflection yokeInfo
- Publication number
- JP3334861B2 JP3334861B2 JP06933498A JP6933498A JP3334861B2 JP 3334861 B2 JP3334861 B2 JP 3334861B2 JP 06933498 A JP06933498 A JP 06933498A JP 6933498 A JP6933498 A JP 6933498A JP 3334861 B2 JP3334861 B2 JP 3334861B2
- Authority
- JP
- Japan
- Prior art keywords
- deflection yoke
- magnets
- pincushion distortion
- coil
- pair
- 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 - Fee Related
Links
Description
【0001】[0001]
【発明の属する技術分野】本発明は、インライン型カラ
ー受像管用偏向ヨークに関するものであり、特には簡便
な手段で画面ラスター歪の補正ができ、良好なコンバー
ゼンス特性が得られるインライン型カラー受像管用偏向
ヨークに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a deflection yoke for an in-line color picture tube, and more particularly to a deflection yoke for an in-line color picture tube capable of correcting screen raster distortion by a simple means and obtaining good convergence characteristics. It is about the yoke.
【0002】[0002]
【従来の技術】一般に、インライン配列の電子銃を有す
るカラー受像管に用いられている偏向ヨークでは、偏向
ヨークの磁界分布を非斉一にすることで、外部回路等の
補正手段を用いることなく、カラー受像管と偏向ヨーク
の組合せのみにより画面全体で3電子ビームを実質的に
一致させるようにしたセルフコンバージェンス機能を有
している。2. Description of the Related Art Generally, in a deflection yoke used in a color picture tube having an in-line array of electron guns, the magnetic field distribution of the deflection yoke is made non-uniform, so that correction means such as an external circuit is not used. It has a self-convergence function for making the three electron beams substantially coincide with each other over the entire screen only by the combination of the color picture tube and the deflection yoke.
【0003】即ち、水平偏向磁界をピンクッション磁界
に、垂直偏向磁界をバレル磁界にすることにより、両サ
イドビーム間のコンバージェンスを偏向ヨーク側のみで
補正することができる。実用に際しては、図4(a)に
図示する如く、開口部上下に一対の上下糸巻歪補正磁石
(4a),(4b)を配設して上下糸巻歪が小さくなる
よう補正していた。That is, by using a horizontal deflection magnetic field as a pincushion magnetic field and a vertical deflection magnetic field as a barrel magnetic field, convergence between both side beams can be corrected only on the deflection yoke side. In practical use, as shown in FIG. 4A, a pair of upper and lower pincushion distortion correcting magnets are provided above and below the opening.
( 4a ) and ( 4b ) were arranged to correct the upper and lower pincushion distortions.
【0004】ところで、近時、カラー受像管の高解像度
化、大画面化、表示画面のワイド化(16:9), フラット化
等がすすみ、コンバーゼンス特性およびラスター歪み特
性の向上が一段と要望されている。In recent years, there has been a growing demand for higher resolution, larger screens, wider (16: 9) and flattened display screens of color picture tubes, and further improvements in convergence characteristics and raster distortion characteristics. I have.
【0005】[0005]
【発明が解決しようとする課題】また、表示画面のワイ
ド化(16:9), フラット化に伴い、画面ラスターは上下糸
巻歪がより大きくなる傾向にある。そして、偏向ヨーク
開口部上下のマグネットにより画面ラスターを補正する
場合は、従来より用いられているマグネットに比べてよ
り大きな着磁量のマグネットを装着する必要が生じてい
た。As the display screen becomes wider (16: 9) and flattened, the screen raster tends to have larger pincushion distortion. When the screen raster is corrected by the magnets above and below the deflection yoke opening, it is necessary to mount a magnet having a larger magnetization amount than a conventionally used magnet.
【0006】そして、偏向ヨーク開口部の上下に大きな
着磁量のマグネットを装着した場合には、画面周辺部と
中間部でコンバーゼンスの反転が生じるため、偏向ヨー
クのコイル分布を調整してコンバーゼンスを補正した
り、コイル分布調整による補正が困難な場合には、偏向
ヨークにモジュレータコイルやマグネット等の補正用部
品をさらに付加してコンバーゼンスを補正する対策が取
られていた。When a magnet having a large amount of magnetization is mounted above and below the deflection yoke opening, convergence is inverted between the peripheral portion and the intermediate portion of the screen. Therefore, the convergence is adjusted by adjusting the coil distribution of the deflection yoke. If it is difficult to make corrections or to make corrections by adjusting the coil distribution, measures have been taken to correct the convergence by further adding correction components such as modulator coils and magnets to the deflection yoke.
【0007】しかしながら、偏向ヨークのコイル分布調
整によるコンバーゼンスの補正が困難であり、モジュレ
ータコイル等の補正用部品を用いた場合には、偏向ヨー
クを構成する部品点数が増加するほか、加工工程数が増
加して偏向ヨークが極めて高価になる難点があった。However, it is difficult to correct the convergence by adjusting the coil distribution of the deflection yoke. When a correction component such as a modulator coil is used, the number of components constituting the deflection yoke increases and the number of processing steps increases. There has been a problem in that the deflection yoke is extremely expensive.
【0008】また、偏向ヨークのコイル分布を調整した
り、偏向ヨーク開口部周辺にマグネットを取付けてコン
バーゼンスを調整する手段では、図4(b)に図示する如き
コンバーゼンスが残ってしまう難点があった。Further, in the means for adjusting the coil distribution of the deflection yoke or adjusting the convergence by attaching a magnet around the opening of the deflection yoke, there is a problem that the convergence as shown in FIG. 4B remains. .
【0009】本発明の目的は、簡便な手段により画面ラ
スタ歪を補正でき、コンバーゼンス特性に優れた安価な
偏向ヨークを提供することにある。It is an object of the present invention to provide an inexpensive deflection yoke which can correct screen raster distortion by simple means and has excellent convergence characteristics.
【0010】[0010]
【課題を解決するための手段】少なくとも一対の水平偏
向コイルと一対の垂直偏向コイルおよびコアが装着され
たコイルセパレータを具備し、インライン配列の電子銃
を有するカラー受像管に装着される偏向ヨークであっ
て、コイルセパレータ(2a),(2b)の開口部上下
には画面ラスターの上下糸巻歪を補正する一対又はそれ
に相当する上下糸巻歪補正磁石(4a),(4b)を配
設するとともに、上下糸巻歪補正磁石(4a),(4
b)の各磁極N,S,N,Sに対応し、かつ、各上下糸
巻歪補正磁石(4a),(4b)の磁極N,S,N,S
とは逆向きの磁界を発生するように、コイルセパレータ
(2a),(2b)の配設面に対して垂直方向に磁極を
有する板状マグネット(1a),(1b),(1c),
(1d)をコイルセパレータ(2a),(2b)のテー
パー形状部の内周面または外周面上に配設して構成す
る。A deflection yoke mounted on a color picture tube having at least a pair of horizontal deflection coils, a pair of vertical deflection coils, and a coil separator mounted with a core and having an in-line array of electron guns. A pair of upper and lower pincushion distortion correcting magnets ( 4a ) and ( 4b ) corresponding to the upper and lower pincushion distortions of the screen raster are disposed above and below the openings of the coil separators ( 2a ) and ( 2b ) . Upper and lower pincushion distortion correction magnets ( 4a ) , ( 4
Each pole N of b), S, N, corresponding to S, and the magnetic pole N of each upper and lower pincushion distortion correction magnet (4a), (4b), S, N, S
So as to generate a magnetic field opposite to that, the coil separator
(2a), a plate-shaped magnet having a magnetic pole in a direction perpendicular to the laying plane of (2b) (1a), ( 1b), (1c),
( 1d ) is arranged on the inner or outer peripheral surface of the tapered portion of the coil separators ( 2a ) and ( 2b ) .
【0011】本発明による偏向ヨークは、コイルセパレ
ータ(2a),(2b)の開口部上下に一対又はそれに
相当する上下糸巻歪補正磁石(4a),(4b)を配設
するとともに、上下糸巻歪補正磁石(4a),(4b)
の各磁極N,S,N,Sに対応し、かつ、各上下糸巻歪
補正磁石(4a),(4b)の磁極N,S,N,Sとは
逆向きの磁界を発生するように、コイルセパレータ(2
a),(2b)の配設面に対して垂直方向に磁極を有す
る板状マグネット(1a),(1b),(1c),(1
d)をコイルセパレータ(2a),(2b)のテーパー
形状部の内周面または外周面上に配設したので、板状マ
グネット(1a),(1b),(1c),(1d)の位
置は上下糸巻歪補正磁石(4a),(4b)より電子銃
側になり、上下一対の上下糸巻歪補正磁石(4a),
(4b)だけの場合に比べて、ラスター歪への影響を少
なく、コンバーゼンスを補正することができる。In the deflection yoke according to the present invention, a pair or upper and lower pincushion distortion correcting magnets ( 4a ) and ( 4b ) are disposed above and below the openings of the coil separators ( 2a ) and ( 2b ). Correction magnets ( 4a ) , ( 4b )
Corresponding to the magnetic poles N, S, N, S, and generate a magnetic field in the opposite direction to the magnetic poles N, S, N, S of the upper and lower pincushion distortion correcting magnets ( 4a ) , ( 4b ) . Coil separator ( 2
a), (plate-shaped magnet having a magnetic pole in a direction perpendicular to the laying surface of the 2b) (1a), (1b ), (1c), (1
Since d ) is disposed on the inner or outer peripheral surface of the tapered portion of the coil separators ( 2a ) and ( 2b ) , the positions of the plate magnets ( 1a ) , ( 1b ) , ( 1c ) and ( 1d ) are set. Is closer to the electron gun than the upper and lower pincushion distortion correcting magnets ( 4a ) and ( 4b ) , and a pair of upper and lower upper and lower pincushion distortion correcting magnets ( 4a ) and
Compared with the case of only ( 4b ) , the convergence can be corrected with less influence on the raster distortion.
【0012】[0012]
【発明の実施の形態】以下、本発明を図1,図2,図3
により具体的に説明する。図1は本発明の偏向ヨークを
示す簡単な説明図であり、同図(a) はその正面図、同図
(b) はその平面図である。図2は上下糸巻歪補正磁石と
板状マグネットの関係を示す説明図であり、図3は板状
マグネットの取付け状態を示す説明図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described with reference to FIGS.
This will be described more specifically. FIG. 1 is a simple explanatory view showing a deflection yoke according to the present invention. FIG.
(b) is a plan view thereof. FIG. 2 is an explanatory diagram showing the relationship between the upper and lower pincushion distortion correcting magnets and the plate magnet, and FIG. 3 is an explanatory diagram showing the state of attachment of the plate magnet.
【0013】図において、(2a),(2b)は難燃性
樹脂等により成型されたコイルセパレータであり、その
内周面には一対の水平偏向コイル(3a),(3b)が
収納されており、外周面には図示していないが一対の垂
直偏向コイルや磁性コアが装着される。In the drawing, ( 2a ) and ( 2b ) are coil separators formed of a flame-retardant resin or the like, and a pair of horizontal deflection coils ( 3a ) and ( 3b ) are housed on the inner peripheral surface thereof. Although not shown, a pair of vertical deflection coils and a magnetic core are mounted on the outer peripheral surface.
【0014】また、コイルセパレータ(2a),(2
b)の開口部の上下には、画面ラスターの上下糸巻歪を
補正するため、長さ80mmほどの一対の上下糸巻歪補
正磁石(4a),(4b)が配設されている。なお、こ
の上下糸巻歪補正磁石(4a),(4b)は画面側から
見て、上部側の補正磁石(4a)は左側がS極で右側が
N極となり、下部側の補正磁石(4b)は左側がN極で
右側がS極になるよう接着剤や粘着テープ等により固定
されている。Further, the coil separators ( 2a ) , ( 2a )
Above and below the opening in b ) , a pair of upper and lower pincushion distortion correction magnets ( 4a ) and ( 4b ) each having a length of about 80 mm are arranged to correct the upper and lower pincushion distortion of the screen raster. The upper and lower pincushion distortion correction magnets ( 4a ) and ( 4b ) are viewed from the screen side, and the upper correction magnet ( 4a ) has an S pole on the left and an N pole on the right, and a lower correction magnet ( 4b ). Is fixed with an adhesive or an adhesive tape so that the left side is the N pole and the right side is the S pole.
【0015】(1a),(1b),(1c),(1d)
はそれぞれ厚さ1mmほどの板状マグネットであり、上
下一対の上下糸巻歪補正磁石(4a),(4b)の各磁
極N,S,N,Sに対応して各象限につき1ヶ配設され
ている。なお、板状マグネット(1a),(1b),
(1c),(1d)はコイルセパレータ(2a),(2
b)のテーパー形状部の内周面(外周面)上で水平偏向
コイル(3a),(3b)の窓部(5a),(5b)に
対応する部分に接着剤や粘着テープ等により固定され
る。従って、板状マグネット(1a),(1b),(1
c),(1d)は、上下一対の上下糸巻歪補正磁石(4
a),(4b)より電子銃側に配設される。 ( 1a ) , ( 1b ) , ( 1c ) , ( 1d )
Are plate-shaped magnets each having a thickness of about 1 mm, and one magnet is provided for each quadrant corresponding to each magnetic pole N, S, N, S of a pair of upper and lower pincushion distortion correcting magnets ( 4a ) and ( 4b ). ing. The plate magnets ( 1a ) , ( 1b ) ,
( 1c ) , ( 1d ) are coil separators ( 2a ) , ( 2d )
b ) On the inner peripheral surface (outer peripheral surface ) of the tapered portion, the horizontal deflection coils ( 3a ) and ( 3b ) are fixed to portions corresponding to the windows ( 5a ) and ( 5b ) by an adhesive or an adhesive tape. You. Accordingly, the plate magnets ( 1a ) , ( 1b ) , ( 1 )
c ) and ( 1d ) are a pair of upper and lower pincushion distortion correcting magnets ( 4)
a ) and ( 4b ) are disposed closer to the electron gun.
【0016】また、図1(a)に図示する如く、板状マ
グネット(1a),(1b),(1c),(1d)は補
正磁石(4a),(4b)の磁極N,S,N,Sとはそ
れぞれ逆向きの磁界を発生するよう、コイルセパレータ
(2a),(2b)の配設面に対して垂直方向に磁極を
有しており、各板状マグネット(1a),(1b),
(1c),(1d)のコイルセパレータ内周面側の磁極
は(1a)がS極、(1b)がN極、(1c)がS極、
(1d)がN極である。As shown in FIG. 1A, the plate magnets ( 1a ) , ( 1b ) , ( 1c ) and ( 1d ) are the magnetic poles N, S and N of the correction magnets ( 4a ) and ( 4b ). , S, a coil separator to generate a magnetic field in the opposite direction.
(2a), to the laying plane of (2b) has a pole in the vertical direction, each plate-shaped magnet (1a), (1b),
The magnetic poles on the inner peripheral surface side of the coil separator of ( 1c ) and ( 1d ) are ( 1a ) an S pole, ( 1b ) an N pole, ( 1c ) an S pole,
( 1d ) is the N pole.
【0017】このように、本発明による偏向ヨークは、
一対の糸巻歪補正磁石(4a),(4b)とコイルセパ
レータ(2a),(2b)の配設面に対して垂直方向に
磁極を有する板状マグネット(1a),(1b),(1
c),(1d)を糸巻歪補正磁石(4a),(4b)に
比べて電子銃側に配設するとともに、糸巻歪補正磁石
(4a),(4b)の磁極N,S,N,Sとは逆向きの
磁界を発生せしめることにより、一対の糸巻歪補正磁石
(4a),(4b)のみの場合に比べてラスター歪への
影響を少なくコンバーゼンス特性の最適化を図れるよう
になる。As described above, the deflection yoke according to the present invention comprises:
A pair of pincushion distortion correction magnet (4a), (4b) and the coil separator (2a), a plate-shaped magnet having a magnetic pole in a direction perpendicular to the laying plane of (2b) (1a), ( 1b), (1
c ) and ( 1d ) are disposed closer to the electron gun than the pincushion distortion correcting magnets ( 4a ) and ( 4b ) , and the pincushion distortion correcting magnet is provided.
A pair of pincushion distortion correcting magnets is generated by generating a magnetic field in the opposite direction to the magnetic poles N, S, N, S of ( 4a ) and ( 4b ).
Compared to the case of only ( 4a ) and ( 4b ) , the influence on the raster distortion is reduced and the convergence characteristic can be optimized.
【0018】[0018]
【発明の効果】本発明によれば、コイルセパレータ開口
部の上下に一対の上下糸巻歪補正磁石を配設し、糸巻歪
補正磁石の各磁極とは逆向きの磁界を発生する板状マグ
ネットを上下糸巻歪補正磁石に比べてより電子銃側とな
るようコイルセパレータに取付ける簡便な手段により、
ラスター歪みへの影響を少なく、コンバーゼンスを補正
することができる。また、表示画面のワイド化, フラッ
ト化に対しても簡便な手段でラスター歪み、コンバーゼ
ンスを補正できる安価な偏向ヨークが得られる。等その
実用上の効果は大きい。According to the present invention, a pair of upper and lower pincushion distortion correcting magnets are disposed above and below the coil separator opening, and a plate-like magnet that generates a magnetic field in a direction opposite to each magnetic pole of the pincushion distortion correcting magnet is provided. By simple means attached to the coil separator so that it is closer to the electron gun than the upper and lower pincushion distortion correction magnets,
Convergence can be corrected with little effect on raster distortion. In addition, an inexpensive deflection yoke capable of correcting raster distortion and convergence can be obtained by simple means for widening and flattening the display screen. The practical effect is great.
【図1】本発明の偏向ヨークの構成を示す簡単な説明図
であり、同図(a) はその正面図、同図(b) はその平面図
である。FIGS. 1A and 1B are simple explanatory views showing the configuration of a deflection yoke according to the present invention, wherein FIG. 1A is a front view thereof, and FIG. 1B is a plan view thereof.
【図2】本発明に用いる上下糸巻歪補正磁石と板状マグ
ネットの関係を示す説明図である。FIG. 2 is an explanatory diagram showing a relationship between an upper and lower pincushion distortion correcting magnet and a plate-like magnet used in the present invention.
【図3】本発明に用いる板状マグネットの取付け状態を
示す説明図である。FIG. 3 is an explanatory view showing an attached state of a plate-shaped magnet used in the present invention.
【図4】画面歪を示す説明図であり、同図(a) は上下糸
巻歪補正磁石を示す説明図、同図(b) はコンバーゼンス
残りの説明図である。FIGS. 4A and 4B are explanatory diagrams showing screen distortion, wherein FIG. 4A is an explanatory diagram showing an upper and lower pincushion distortion correcting magnet, and FIG. 4B is an explanatory diagram showing convergence remaining.
1a,1b,1c,1d 板状マグネット 2a,2b コイルセパレータ 3a,3b 水平コイル 4a,4b 補正磁石 5a,5b 水平コイル窓部 1a, 1b, 1c, 1d Plate magnet 2a, 2b Coil separator 3a, 3b Horizontal coil 4a, 4b Correction magnet 5a, 5b Horizontal coil window
フロントページの続き (58)調査した分野(Int.Cl.7,DB名) H01J 29/76 Continuation of front page (58) Field surveyed (Int.Cl. 7 , DB name) H01J 29/76
Claims (1)
a),(3b)と一対の垂直偏向コイルおよび磁性コア
を装着したコイルセパレータ(2a),(2b)を具備
し、インライン配列の電子銃を有するカラー受像管に装
着される偏向ヨークであって、 前記コイルセパレータ(2a),(2b)の開口部上下
には画面ラスターの上下糸巻歪を補正する一対又はこれ
に相当する上下糸巻歪補正磁石(4a),(4b)を配
設するとともに、前記上下糸巻歪補正磁石(4a),
(4b)の各磁極N,S,N,Sに対応し、かつ、前記
各上下糸巻歪補正磁石(4a),(4b)の磁極N,
S,N,Sとは逆向きの磁界を発生するように、コイル
セパレータ(2a),(2b)の配設面に対して垂直方
向に磁極を有する板状マグネット(1a),(1b),
(1c),(1d)をコイルセパレータ(2a),(2
b)のテーパー形状部の内周面または外周面上に配設し
たことを特徴とする偏向ヨーク。At least one pair of horizontal deflection coils ( 3)
a ) and ( 3b ) , a pair of vertical deflection coils and coil separators ( 2a ) and ( 2b ) each having a magnetic core mounted thereon, and a deflection yoke mounted on a color picture tube having an in-line array of electron guns. A pair of upper and lower pincushion distortion correcting magnets ( 4a ) and ( 4b ) corresponding to the upper and lower pincushion distortions of the screen raster are disposed above and below the openings of the coil separators ( 2a ) and ( 2b ) . The upper and lower pincushion distortion correcting magnets ( 4a ) ,
The magnetic poles N, S corresponding to the magnetic poles N, S, N, S of ( 4b ), and the magnetic poles N, S of the upper and lower pincushion distortion correcting magnets ( 4a ) , ( 4b ) .
S, N, to generate a magnetic field opposite to that S, the coil separator (2a), a plate-shaped magnet having a magnetic pole in a vertical way <br/> direction to the laying plane of (2b) (1a) , ( 1b ) ,
( 1c ) and ( 1d ) are replaced by coil separators ( 2a ) and ( 2a ) .
b ) A deflection yoke arranged on the inner peripheral surface or the outer peripheral surface of the tapered portion.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP06933498A JP3334861B2 (en) | 1998-03-03 | 1998-03-03 | Deflection yoke |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP06933498A JP3334861B2 (en) | 1998-03-03 | 1998-03-03 | Deflection yoke |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH11250831A JPH11250831A (en) | 1999-09-17 |
JP3334861B2 true JP3334861B2 (en) | 2002-10-15 |
Family
ID=13399561
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP06933498A Expired - Fee Related JP3334861B2 (en) | 1998-03-03 | 1998-03-03 | Deflection yoke |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3334861B2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TW480525B (en) * | 1999-12-22 | 2002-03-21 | Matsushita Electronics Corp | Color display tube device |
-
1998
- 1998-03-03 JP JP06933498A patent/JP3334861B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
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JPH11250831A (en) | 1999-09-17 |
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