JP2001023539A - Convergence correction device - Google Patents

Convergence correction device

Info

Publication number
JP2001023539A
JP2001023539A JP18873299A JP18873299A JP2001023539A JP 2001023539 A JP2001023539 A JP 2001023539A JP 18873299 A JP18873299 A JP 18873299A JP 18873299 A JP18873299 A JP 18873299A JP 2001023539 A JP2001023539 A JP 2001023539A
Authority
JP
Japan
Prior art keywords
convergence correction
coil
ferrite core
convergence
coils
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
JP18873299A
Other languages
Japanese (ja)
Inventor
Akira Aoki
章 青木
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP18873299A priority Critical patent/JP2001023539A/en
Publication of JP2001023539A publication Critical patent/JP2001023539A/en
Pending legal-status Critical Current

Links

Abstract

PROBLEM TO BE SOLVED: To reduce power consumption and remove an effect causing neck shadow by attaching semicircular rings having division grooves on the large diameter and the small diameter parts of a ferrite core covering the outside of deflection coils whose horizontal and vertical convergence correction coils are formed of saddle coils and by winding the convergence correction coil around the rings. SOLUTION: A coil is constituted by toroidally (radially) winding convergence coils 3 in division grooves between projections 5 of semicircular ring mold winding frame 4 having the division grooves in the large diameter part and the small diameter part of a ferrite core which cover the outsides of deflecting horizontal coils 1 and deflecting vertical coils 2 and form a magnetic field, and the joint use of the deflecting ferrite core can provide the convergence correction coil with long magnetic field length. When using a highly accurate coil winder, the convergence coil of the same effect can be provided by directly winding to the ferrite core without using a semicircular-diameter ring mold frame.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】本発明は、陰極線管を用いた
３管式投射型テレビジョン受像機のコンバーゼンス補正
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 convergence correction device for a three-tube projection television receiver using a cathode ray tube.

【０００２】[0002]

【従来の技術】従来の３管式投射型テレビジョン受像機
のコンバーゼンス補正装置では第６図に示すようにラス
ターを形成する偏向用磁界発生コイル１１の後方に位置
する電子銃側に色ズレを合わせるコンバーゼンス補正用
磁界発生コイル１２が配置され且つ偏向用フェライトコ
アとは別の分離したフェライトコアに巻線されている。2. Description of the Related Art In a conventional convergence correction device for a three-tube projection type television receiver, as shown in FIG. 6, a color shift occurs on the electron gun side located behind a deflecting magnetic field generating coil 11 forming a raster. A convergence correction magnetic field generating coil 12 to be matched is arranged and wound around a ferrite core separate from the deflection ferrite core.

【０００３】[0003]

【発明が解決しようとする課題】陰極線管の全長は省ス
ペース化しテレビ受像機の外形をコンパクトに仕上げる
為、長さが制限されており第６図に示すように偏向用コ
イル１１に比べコンバーゼンス用コイル１２の磁場長は
あまり長くすると電子ビーム１５が図示のごとく陰極線
管１０の内側に当たりネックシャドウが生じる弊害が起
きるので伸ばせないのが現状である。The length of the cathode ray tube is limited in order to save the entire length of the cathode ray tube and to make the outer shape of the television receiver compact, and as shown in FIG. At present, if the length of the magnetic field of the coil 12 is too long, the electron beam 15 hits the inside of the cathode ray tube 10 as shown in FIG.

【０００４】この為コンバーゼンス補正用の磁気感度は
悪く、補正駆動回路１４の消費電力が多くなるが、回路
素子の発熱を抑える放熱板を大きくすることで対処して
きた。しかしながら今後、画質を更に上げる為、走査線
数が増えると補正駆動回路の発熱も上がり、テレビ受像
機のコンパクト化や省電力化を進めるための弊害にな
る。For this reason, the magnetic sensitivity for convergence correction is low, and the power consumption of the correction drive circuit 14 is increased. However, this has been dealt with by increasing the size of the heat radiating plate for suppressing heat generation of the circuit elements. However, in the future, if the number of scanning lines is increased to further improve the image quality, the heat generated by the correction driving circuit is also increased, which is an adverse effect for reducing the size and power consumption of the television receiver.

【０００５】[0005]

【課題を解決するための手段】前記課題を解決する為
に、本発明はコンバーゼンス補正用コイル１２を偏向コ
イル１１用フェライトコアの内側に巻線することで、磁
場長を長くして磁気感度を上げ、コンバーゼンス駆動回
路の消費電力をすくなくし、且つ、陰極線管のスクリー
ン側で磁場を形成させることで、ネックシャドウを生じ
る弊害も除去できるコンバーゼンス補正装置を提供する
ものである。In order to solve the above-mentioned problems, the present invention provides a convergence correction coil 12 wound around the inside of a ferrite core for a deflection coil 11 to increase the magnetic field length and increase the magnetic sensitivity. It is an object of the present invention to provide a convergence correction device capable of reducing the power consumption of a convergence driving circuit and forming a magnetic field on the screen side of a cathode ray tube, thereby eliminating a problem of causing a neck shadow.

【０００６】[0006]

【発明の実施の形態】本発明は陰極線管を用いた３管式
投射型テレビジョン受像機のコンバーゼンス補正装置に
おいて、３管の色ズレを合致させるコンバーゼンス補正
用コイルをスクリーン面全体を走査しラスターを形成す
る偏向コイル装置のフェライトコアを磁場形成する併用
のフェライトコアとしてコンバーゼンス補正用コイルを
巻線しコイルを構成したコンバーゼンス補正装置であ
る。 以下、本発明の実施の形態について、図１から図
５を用いて説明する。 （実施の形態１）本発明の実施形態１を説明すると第１
図は本装置を輪切りにした断面図で第２図は側面から見
た図を示している。電子銃１０の外側には偏向用水平コ
イル１と偏向用垂直コイル２を配置し、その巻線コイル
形状は第３図のサドル型巻線にて両コイルとも構成して
いる。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention relates to a convergence correction device for a three-tube projection television receiver using a cathode ray tube, which scans the entire screen surface with a convergence correction coil for matching the color shift of the three tubes, and performs rasterization. Is a convergence correction device in which a convergence correction coil is wound as a combined ferrite core for forming a magnetic field with a ferrite core of a deflection coil device forming a magnetic field. Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 5. (Embodiment 1) The first embodiment of the present invention will be described.
FIG. 2 is a cross-sectional view of the apparatus cut into a circle, and FIG. 2 is a side view. A deflection horizontal coil 1 and a deflection vertical coil 2 are arranged outside the electron gun 10, and the winding coil shape is a saddle type winding shown in FIG.

【０００７】本発明はこの偏向用コイル１，２の外側を
覆って磁場を形成しているフェライトコア６の大径部と
小径部に分割溝のある半円径リング状成形枠４の突起部
５間の分割溝にコンバーゼンス補正用コイル３を第４図
のようにトロイダル状（放射状）に巻線しコイルを構成
したもので、偏向用フェライトコアを併用することで磁
場長の長いコンバーゼンス補正コイルが得られる。According to the present invention, the projecting portion of the semicircular ring-shaped molding frame 4 having a divided groove in the large diameter portion and the small diameter portion of the ferrite core 6 which covers the outside of the deflection coils 1 and 2 and forms a magnetic field. The convergence correction coil 3 is formed by winding the convergence correction coil 3 in a toroidal (radial) shape as shown in FIG. Is obtained.

【０００８】尚、精度の良いコイル巻線機を使用すれば
半円径リング成形枠を使わず直接フェライトコアに巻線
しても同じ効果のコンバーゼンスコイルを得ることがで
きる。If a coil winding machine with high accuracy is used, a convergence coil having the same effect can be obtained even if the coil is wound directly on a ferrite core without using a semicircular ring forming frame.

【０００９】（実施の形態２）本発明の実施形態２につ
いて説明すると第５図は本装置を輪切りにした断面図を
示しており、電子銃管１０の外側に偏向用とコンバーゼ
ンス補正用に併用するフェライコア上に多数の分割溝を
設けた成形巻枠７を配置し、この分割溝にコンバーゼン
ス補正コイル３（○で図示）を巻線し、次に偏向用垂直
コイル８（◎で図示）を巻線し、更に偏向用水平コイル
９（●で図示）を順次積み重ねるよう巻線しコイルを構
成したもので、各コイルは突起部５にて巻き幅の位置決
めがされている。(Embodiment 2) FIG. 5 is a cross-sectional view of the apparatus of the present invention, in which the apparatus is cut into a circle. The apparatus is used outside the electron gun tube 10 for deflection and convergence correction. A molding reel 7 provided with a number of division grooves is arranged on a ferri core to be formed, and a convergence correction coil 3 (illustrated by ○) is wound in these division grooves, and then a deflection vertical coil 8 (illustrated by ◎) is provided. The coils are wound so that the horizontal coils for deflection 9 (shown by ●) are sequentially stacked, and the winding width of each coil is determined by the protrusion 5.

【００１０】この実施形態でも前記の実施形態と同じく
磁場長を長くでき磁気感度の良いコンバーゼンス補正装
置を得ることができる。Also in this embodiment, a convergence correction device having a long magnetic field length and excellent magnetic sensitivity can be obtained as in the above-described embodiment.

【００１１】[0011]

【発明の効果】以上のように本発明によれば、コンバー
ゼンスコイルの磁場長を長くして磁気感度を上げコンバ
ーゼンス駆動回路の消費電力を少なくし、ネックシャド
ウを生じる弊害も除去できるコンバーゼンス補正装置を
得ることができる。As described above, according to the present invention, there is provided a convergence correction device capable of increasing the magnetic field length of the convergence coil, increasing the magnetic sensitivity, reducing the power consumption of the convergence driving circuit, and removing the adverse effects of causing neck shadow. Obtainable.

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

【図１】本発明の実施形態１の断面図FIG. 1 is a sectional view of Embodiment 1 of the present invention.

【図２】本発明の実施形態１の側面図FIG. 2 is a side view of the first embodiment of the present invention.

【図３】サドル巻型コイルの外観図FIG. 3 is an external view of a saddle-wound coil.

【図４】トロイダル巻型コイルの外観図FIG. 4 is an external view of a toroidal wound coil.

【図５】本発明の実施形態２の断面図FIG. 5 is a sectional view of Embodiment 2 of the present invention.

【図６】従来の陰極線管に装着したコンバーゼンスコイ
ルと偏向コイルの配置図FIG. 6 is a layout diagram of a convergence coil and a deflection coil mounted on a conventional cathode ray tube.

【符号の説明】[Explanation of symbols]

１偏向用水平コイル ２偏向用垂直コイル ３コンバーゼンス用コイル ４リング状成形巻枠 ５成形巻枠の突起部 ６フェライトコア ７コアに取付けた成形巻枠 ８偏向用垂直コイル ９偏向用水平コイル １０電子銃管 １１偏向コイル １２コンバーゼンス用コイル １３偏向駆動回路 １４コンバーゼンス駆動回路 １５電子ビーム 1 Deflection horizontal coil 2 Deflection vertical coil 3 Convergence coil 4 Ring-shaped forming reel 5 Forming reel protrusion 6 Ferrite core 7 Forming reel attached to core 8 Deflection vertical coil 9 Deflection horizontal coil 10 Electronics Gun tube 11 Deflection coil 12 Convergence coil 13 Deflection drive circuit 14 Convergence drive circuit 15 Electron beam

Claims (3)

【特許請求の範囲】[Claims] 【請求項１】 陰極線管を用いた３色３管式投射型テレ
ビジョン受像機のコンバーゼンス補正装置において、３
管の色ズレを合致させるコンバーゼンス補正用コイルを
水平、垂直ともサドル巻線にて形成する偏向コイルの外
側を覆うように配置したフェライトコアを磁場を形成す
る併用のフェライトコアとし、このフェライトコアの大
径部、小径部に分割溝のある半円径リングを取付けて、
このリングにコンバーゼンス補正用コイルを巻線したコ
ンバーゼンス補正装置。1. A convergence correction device for a three-color three-tube projection television receiver using a cathode ray tube.
The convergence correction coil that matches the color misalignment of the tubes is used both horizontally and vertically to cover the outside of the deflection coil formed by saddle winding.A ferrite core is used as a combined ferrite core that forms a magnetic field. Attach a semi-circular ring with a split groove on the large diameter section and the small diameter section,
A convergence correction device in which a convergence correction coil is wound around this ring. 【請求項２】 陰極線管を用いた３色３管式投射型テレ
ビジョン受像機のコンバーゼンス補正装置において、３
管の色ズレを合致させるコンバーゼンス補正用コイルを
水平、垂直ともサドル巻線にて形成する偏向コイルの外
側を覆うように配置したフェライトコアを磁場を形成す
る併用のフェライトコアとし、このフェライトコア上に
直接トロイダル状にコンバーゼンス補正用コイルを巻線
したコンバーゼンス補正装置。2. A convergence correction device for a three-color three-tube projection television receiver using a cathode ray tube.
A convergence correction coil that matches the color misalignment of the tube is formed by saddle winding both horizontally and vertically.A ferrite core that is arranged to cover the outside of the deflection coil is used as a combined ferrite core that forms a magnetic field. A convergence correction device in which a convergence correction coil is wound directly in a toroidal shape. 【請求項３】 陰極線管を用いた３色３管式投射型テレ
ビジョン受像機のコンバーゼンス補正装置において、３
管の色ズレを合致させるコンバーゼンス補正用コイルを
偏向コイルのフェライトコアを磁場を形成する併用のフ
ェライトコアとし、このフェライトコアの内側と外側に
多数の分割溝を有する成形巻枠を配置し、この巻枠に水
平、垂直の偏向用コイルとコンバーゼンス補正用コイル
を積み重ねるようにトロイダル巻線したコンバーゼンス
補正装置。3. A convergence correction device for a three-color three-tube projection television receiver using a cathode ray tube.
The convergence correction coil that matches the color shift of the tube is a ferrite core of the deflection coil that is used in combination with a ferrite core that forms a magnetic field, and a molded reel having a number of divided grooves is arranged inside and outside the ferrite core. A convergence correction device in which a horizontal and vertical deflection coil and a convergence correction coil are stacked on a bobbin in a toroidal manner.
JP18873299A 1999-07-02 1999-07-02 Convergence correction device Pending JP2001023539A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18873299A JP2001023539A (en) 1999-07-02 1999-07-02 Convergence correction device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18873299A JP2001023539A (en) 1999-07-02 1999-07-02 Convergence correction device

Publications (1)

Publication Number Publication Date
JP2001023539A true JP2001023539A (en) 2001-01-26

Family

ID=16228815

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18873299A Pending JP2001023539A (en) 1999-07-02 1999-07-02 Convergence correction device

Country Status (1)

Country Link
JP (1) JP2001023539A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6737818B2 (en) 2001-11-22 2004-05-18 Hitachi, Ltd. Deflection yoke and cathode ray tube device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6737818B2 (en) 2001-11-22 2004-05-18 Hitachi, Ltd. Deflection yoke and cathode ray tube device
KR100481897B1 (en) * 2001-11-22 2005-04-11 가부시키가이샤 히타치세이사쿠쇼 Deflection yoke and cathode ray tube device

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