JPS62295337A - Deflection yoke - Google Patents
Deflection yokeInfo
- Publication number
- JPS62295337A JPS62295337A JP13861586A JP13861586A JPS62295337A JP S62295337 A JPS62295337 A JP S62295337A JP 13861586 A JP13861586 A JP 13861586A JP 13861586 A JP13861586 A JP 13861586A JP S62295337 A JPS62295337 A JP S62295337A
- Authority
- JP
- Japan
- Prior art keywords
- coil
- ringing
- resistance
- parallel
- capacitor
- 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.)
- Granted
Links
- 230000004075 alteration Effects 0.000 claims abstract description 16
- 239000003990 capacitor Substances 0.000 claims abstract description 14
- 206010073261 Ovarian theca cell tumour Diseases 0.000 claims abstract description 9
- 208000001644 thecoma Diseases 0.000 claims abstract description 9
- 206010010071 Coma Diseases 0.000 claims description 6
- 238000010894 electron beam technology Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 230000035699 permeability Effects 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 244000241872 Lycium chinense Species 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Abstract
Description
【発明の詳細な説明】
３、発明の詳細な説明
産業上の利用分野
本発明は、インライン型カラー受像管、とくに高精細度
カラー受像管に装着されるセルフコンバージェンス用偏
向ヨークに関するものである。3. Detailed Description of the Invention Field of Industrial Application The present invention relates to a self-convergence deflection yoke mounted on an in-line color picture tube, particularly a high-definition color picture tube.
従来の技１ｊｉ
一般に、インライン型カラー受像管に装着される偏向ヨ
ークは、ビンクッション状に歪んだ水平偏向磁界および
バレル状に歪んだ垂直偏向磁界を発生する。このため、
ダイナミックコンバージェンス回路不要のセルフコンバ
ージェンス構成となし得るのであるが、前述のように歪
んだ水平・垂直偏向磁界を３電子ビームに与えるとコマ
収差を生じ、第３図に示すようにセンターの電子ビーム
Ｇによるラスクーｇが、両サイドの電子ビームＢ、Ｈに
よるラスターｂ、ｒに比して小さくなる。Conventional Techniques 1ji Generally, a deflection yoke attached to an in-line color picture tube generates a horizontal deflection magnetic field distorted in the shape of a bottle cushion and a vertical deflection magnetic field distorted in the shape of a barrel. For this reason,
It is possible to achieve a self-convergence configuration that does not require a dynamic convergence circuit, but if the distorted horizontal and vertical deflection magnetic fields are applied to the three electron beams as described above, coma aberration occurs, and as shown in Figure 3, the central electron beam G The raster g caused by the electron beams B and H on both sides becomes smaller than the rasters b and r caused by the electron beams B and H on both sides.
そこで、第４図に示すように水平偏向コイル１の電子銃
側に１対の高透磁墨汁２を設け、これに水平偏向の漏れ
磁界を作用させることが行なわれている。このようにし
て水平偏向磁界の電子銃側を局部的にバレル状３に歪ま
せろさ、第５図に示すように水平偏向磁界の電子銃側に
おいてセンターの電子ビームＧに作用する水平方向力Ｆ
Ｇが、両サイドの電子ビームＢ、Ｈに作用する水平方向
力ＦＢ 、ＦＲに比して大となり、ラスターｇの水平方
向サイズを残余のラスタｂ、ｒの水平方向サイズに近づ
けることができる。Therefore, as shown in FIG. 4, a pair of highly permeable black ink 2 is provided on the electron gun side of the horizontal deflection coil 1, and a leakage magnetic field of horizontal deflection is applied to this. In this way, the electron gun side of the horizontal deflection magnetic field is locally distorted into a barrel shape 3. As shown in Figure 5, the horizontal force F acting on the central electron beam G on the electron gun side of the horizontal deflection magnetic field.
G is larger than the horizontal forces FB and FR acting on the electron beams B and H on both sides, and the horizontal size of the raster g can be brought close to the horizontal size of the remaining rasters b and r.
また、垂直偏向に関しては、垂直偏向コイルの電子銃Ｑ
りに第６図図示のような１対のコマ収差補正月コイル構
体４を設け、垂直偏向磁界の電子銃側を局部的にビンク
ッション状５に歪ませることが行なわれている。この場
合は第７図に示すように、垂直偏向磁界の電子銃側にお
いてセンターの電子ビームＧに作用する垂直方向力Ｆａ
’が、両サイドの電子ビームＢ、Ｒに作用する垂直方向
力ＦＢ′、ＦＲ′に比して大となり、ラスターｇの垂直
方向サイズを残余のラスクーｂ、ｒの垂直方向サイズに
近づけることができる。Regarding vertical deflection, the vertical deflection coil electron gun Q
In addition, a pair of coma aberration correction moon coil structures 4 as shown in FIG. 6 are provided to locally distort the vertical deflection magnetic field on the electron gun side into a bottle cushion shape 5. In this case, as shown in FIG. 7, a vertical force Fa acting on the center electron beam G on the electron gun side of the vertical deflection magnetic field
' becomes larger than the vertical forces FB' and FR' acting on the electron beams B and R on both sides, making it possible to bring the vertical size of the raster g closer to the vertical size of the remaining rasques b and r. can.
発明が解決しようとする問題点
ところで、かかる偏向ヨークにおいては、リンギング対
策としてのダンピング回路を垂直偏向コイルに付加して
いるので、第８図の（ｂ）に示すようなリンギングの発
生を防止することができる。Problems to be Solved by the Invention Incidentally, in such a deflection yoke, a damping circuit is added to the vertical deflection coil as a countermeasure against ringing, so that the occurrence of ringing as shown in FIG. 8(b) can be prevented. be able to.
しかし、前述のようなコマ収差補正用コイルを備えた偏
向ヨークにおいては、とくに水平走査周波数が高い場合
や、水平・垂直インダクタンス比（ＬＶ／Ｌ）ｌ）値が
大きい場合または水平振幅が大きい場合に、第８図の（
Ｃ）に示すような波長の比較的大きいすだれ状のリンギ
ングが発生しやずいという問題点があった。なお、第８
図の（ａ）はサドル形偏向コイルによるリンギングを示
す。However, in a deflection yoke equipped with a coil for coma aberration correction as described above, it is particularly difficult to use when the horizontal scanning frequency is high, the horizontal to vertical inductance ratio (LV/L) value is large, or the horizontal amplitude is large. In Figure 8, (
There is a problem in that interdigital ringing with a relatively large wavelength as shown in C) tends to occur. In addition, the 8th
Part (a) of the figure shows ringing due to the saddle-shaped deflection coil.
問題点を解決するための手段
本発明は、前述のような問題点を解決するためになされ
たもので、本発明によると、コンデンサおよび抵抗のい
ずれか一方または双方からなる直列接続体をコマ収差補
正用コイルに並列に接続する。Means for Solving the Problems The present invention has been made to solve the above-mentioned problems.According to the present invention, a series-connected body consisting of one or both of a capacitor and a resistor can be used to eliminate coma aberration. Connect in parallel to the correction coil.
作用
このように構成すると、コマ収差補正用コイルのインダ
クタンスと浮遊容量とによる共振回路で生じる前述のよ
うなリンギングを抑制することができる。With this configuration, it is possible to suppress the ringing described above that occurs in the resonant circuit caused by the inductance and stray capacitance of the coma aberration correction coil.
実施例
本発明の実施例を示す第１図において、６：よりドル形
の垂直偏向コイル、７はトロイダル形の垂直偏向コイル
、８は垂直偏向コイル６の電子銃（υりに設けられたコ
マ収差補正用コイル構体のコイルを示す。これらのコイ
ルは第２図に示すようにサドル形の水平偏向コイル９、
フェライトコアー１０、硬質合成樹脂からなる漏斗状の
絶縁枠体１１および水平偏向コイル９の電子銃側に設け
られた高透磁率片１２とともに組み合わされて偏向ヨー
クを構成している。Embodiment In FIG. 1 showing an embodiment of the present invention, 6 is a dollar-shaped vertical deflection coil, 7 is a toroidal vertical deflection coil, and 8 is an electron gun of the vertical deflection coil 6 (columns provided in the υ direction). The coils of the aberration correction coil structure are shown.These coils include a saddle-shaped horizontal deflection coil 9, as shown in FIG.
A ferrite core 10, a funnel-shaped insulating frame 11 made of hard synthetic resin, and a high magnetic permeability piece 12 provided on the electron gun side of the horizontal deflection coil 9 are combined to form a deflection yoke.
サドル形の垂直偏向コイル６には抵抗１３および可変抵
抗１４が並列に接続されており、トロイダル形の垂直偏
向コイル７には、コンデンサ１５と抵抗１６との直列接
続体が並列に接続されており、コマ収差補正用コイル構
体のコイル８にも、コンデンサ１７と抵抗１８とめ直列
接続体が並列に接続されている。A resistor 13 and a variable resistor 14 are connected in parallel to the saddle-shaped vertical deflection coil 6, and a series connection of a capacitor 15 and a resistor 16 is connected in parallel to the toroidal-shaped vertical deflection coil 7. A series connection body including a capacitor 17 and a resistor 18 is also connected in parallel to the coil 8 of the coma aberration correction coil structure.
垂直偏向系のコイル６．７．８には、元来、垂直偏向電
流成分のみが流れるべきであるが、これらのコイルが水
平偏向磁界のフィールド内に位置することから、クロス
トークによる起電力を誘起し、共振現東を生じてリンギ
ング電流がコイルを流れろ。本発明者らの、Ｑ’ｔ！折
によると、垂直偏向系コイルを前述のように３種の、ま
たはｎ種のもので構成した場合、基本的には第８図の（
ａ）〜（Ｃ）に示すような３種の、またはｎ種のリンギ
ングが発生する。そして、コマ収差補正用コイル８によ
る第８図（Ｃ）のリンギングは数百Ｋ Ｈｚの比較的低
い周波数となり、従来、その対策は講じられていなかっ
た。Originally, only the vertical deflection current component should flow through the coils 6.7.8 of the vertical deflection system, but since these coils are located within the field of the horizontal deflection magnetic field, the electromotive force due to crosstalk can be reduced. A ringing current flows through the coil, causing a resonant current. The inventors'Q't! According to the case, when the vertical deflection system coil is composed of three types or n types of coils as described above, basically the (
Three or n types of ringing as shown in a) to (C) occur. The ringing shown in FIG. 8(C) caused by the coma aberration correction coil 8 has a relatively low frequency of several hundred KHz, and no countermeasures have been taken heretofore.
そこで、本発明実施の装置においては前述のように、コ
イル８に対してもコンデンサ１７と抵抗１８との直列接
続体からなるリンギング防止回路を並列に接続している
のであり、これによって、第８図の（Ｃ）に示したよう
なリンギング現象の発生を防止することができる。Therefore, in the device according to the present invention, as described above, a ringing prevention circuit consisting of a series connection of a capacitor 17 and a resistor 18 is connected in parallel to the coil 8. It is possible to prevent the occurrence of a ringing phenomenon as shown in (C) of the figure.
なお、第１図に示した実施例ではリンギング防止回路を
４つのコイル８のそれぞれに付加したが、４つのコイル
のうちの１つないし３つに付加してもよい。また、コン
デンサと抵抗との直列接続体に代えて、コンデンサおよ
び抵抗のいずれか一方を用いることもできる。すなわち
、使用する水平偏向周波数が１種類の場合は、コンデン
サのみを付加して共振周波数を下げることができ、使用
する水平周波数が広帯域の場合は、抵抗のみで足りるこ
とがある。さらにコイル８のそれぞれに中間タップを設
け、この中間タップに前述のようなリンギング防止回路
を付加することもできる。In the embodiment shown in FIG. 1, the ringing prevention circuit is added to each of the four coils 8, but it may be added to one to three of the four coils. Furthermore, instead of the series connection of a capacitor and a resistor, either one of the capacitor and the resistor can be used. That is, if only one type of horizontal deflection frequency is used, the resonant frequency can be lowered by adding only a capacitor, and if the horizontal frequency used is a wide band, only a resistor may be sufficient. Furthermore, each of the coils 8 may be provided with an intermediate tap, and a ringing prevention circuit as described above may be added to this intermediate tap.
使用するコンデンサや抵抗の値は、使用する水平偏向周
波数およびコマ収差補正用コイルのインダクタンスある
いは発生するリンギングの周波数によって決定すればよ
い。The values of the capacitors and resistors used may be determined depending on the horizontal deflection frequency used, the inductance of the coma aberration correction coil, or the frequency of ringing that occurs.
発明の効果
本発明は前述のように構成されるので、コマ収差補正用
コイルのインダクタンスと浮遊容量とによる共振回路で
生じるリンギングを抑制することができ、とくに高精細
度カラー受像管の電子ビーム偏向手段に適用してすぐれ
た効果を発揮する。Effects of the Invention Since the present invention is configured as described above, it is possible to suppress the ringing that occurs in the resonant circuit caused by the inductance and stray capacitance of the coma aberration correction coil, and is particularly useful for electron beam deflection of high-definition color picture tubes. It has excellent effects when applied to means.
第１図は本発明を実施した偏向ヨークの垂直偏向系コイ
ルの結線図、第２図は同偏向ヨークの一部破断側面図、
第３図は３電子ビームによるラスタのずれを説明するた
めの図、第４図および第５図は窩透磁率片を付加したこ
とによる磁界分布および電子ビームに作用する力を説明
するための図、第６図および第７図はコマ収差補正用コ
イルを付加したことによる磁界分布および電子ビームに
作用する力を説明するための図、第８図はリンギング現
主を説明するための図である。
６・・・・・・サドル形垂直偏向コイル、７・・・・・
・トロイダル形垂直偏向コイル、８・・・・・・コマ収
差補正用コイル、１７・・・・・・コンデンサ、１８・
・・・・・抵抗。
代理人の氏名 弁理士 中尾敏男 ほか１名Ｇ−’す”
ｒル贋！Ｉ９−向コイル
ｆクー・・コ４ル
ｆ８−玖花
第３図
第 ４ 図
第６図Fig. 1 is a wiring diagram of a vertical deflection system coil of a deflection yoke embodying the present invention, Fig. 2 is a partially cutaway side view of the same deflection yoke,
Figure 3 is a diagram for explaining the raster deviation caused by the three electron beams, and Figures 4 and 5 are diagrams for explaining the magnetic field distribution and the force acting on the electron beam due to the addition of the hole magnetic permeability piece. , Figures 6 and 7 are diagrams for explaining the magnetic field distribution and the force acting on the electron beam due to the addition of a coma aberration correction coil, and Figure 8 is a diagram for explaining the ringing effect. . 6...Saddle type vertical deflection coil, 7...
・Toroidal vertical deflection coil, 8... Comatic aberration correction coil, 17... Capacitor, 18...
·····resistance. Name of agent: Patent attorney Toshio Nakao and one other person
r fake! I9-direction coil f Kuko 4 coil f8-Kuka Fig. 3 Fig. 4 Fig. 6
Claims (1)
コイルを備えてなる偏向ヨークにおいて、コンデンサお
よび抵抗のいずれか一方または双方からなる直列接続体
を前記コマ収差補正用コイルに並列に接続してなること
を特徴とする偏向ヨーク。In a deflection yoke comprising a horizontal deflection coil, a vertical deflection coil, and a coma aberration correction coil, a series connection body consisting of one or both of a capacitor and a resistor is connected in parallel to the coma aberration correction coil. A deflection yoke featuring
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61138615A JPH083979B2 (en) | 1986-06-13 | 1986-06-13 | Deflection yoke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61138615A JPH083979B2 (en) | 1986-06-13 | 1986-06-13 | Deflection yoke |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62295337A true JPS62295337A (en) | 1987-12-22 |
| JPH083979B2 JPH083979B2 (en) | 1996-01-17 |
Family
ID=15226223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61138615A Expired - Lifetime JPH083979B2 (en) | 1986-06-13 | 1986-06-13 | Deflection yoke |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH083979B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07122204A (en) * | 1993-10-20 | 1995-05-12 | Victor Co Of Japan Ltd | Deflection yoke |
| KR20020000429A (en) * | 2000-06-26 | 2002-01-05 | 이형도 | Improvement method for unbalance of green beam |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS546028U (en) * | 1977-06-14 | 1979-01-16 | ||
| JPS5464419U (en) * | 1977-10-14 | 1979-05-08 | ||
| JPS61230245A (en) * | 1985-04-04 | 1986-10-14 | Denki Onkyo Co Ltd | Deflection york device |
-
1986
- 1986-06-13 JP JP61138615A patent/JPH083979B2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS546028U (en) * | 1977-06-14 | 1979-01-16 | ||
| JPS5464419U (en) * | 1977-10-14 | 1979-05-08 | ||
| JPS61230245A (en) * | 1985-04-04 | 1986-10-14 | Denki Onkyo Co Ltd | Deflection york device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07122204A (en) * | 1993-10-20 | 1995-05-12 | Victor Co Of Japan Ltd | Deflection yoke |
| KR20020000429A (en) * | 2000-06-26 | 2002-01-05 | 이형도 | Improvement method for unbalance of green beam |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH083979B2 (en) | 1996-01-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |