JPH0673283B2 - Deflection yoke and display device using the same - Google Patents
Deflection yoke and display device using the sameInfo
- Publication number
- JPH0673283B2 JPH0673283B2 JP12816487A JP12816487A JPH0673283B2 JP H0673283 B2 JPH0673283 B2 JP H0673283B2 JP 12816487 A JP12816487 A JP 12816487A JP 12816487 A JP12816487 A JP 12816487A JP H0673283 B2 JPH0673283 B2 JP H0673283B2
- Authority
- JP
- Japan
- Prior art keywords
- cathode ray
- ray tube
- deflection yoke
- deflection
- horizontal 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.)
- Expired - Lifetime
Links
Landscapes
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
Description
【発明の詳細な説明】 〔発明の利用分野〕 本発明は、偏平管と呼ばれるブラウン管に使用する偏向
ヨークに関する。Description: FIELD OF THE INVENTION The present invention relates to a deflection yoke used for a Braun tube called a flat tube.
従来の偏向ヨークは上下の各水平コイルが同一長であ
り、また同一の巻数で同等のインダクタンスを有してい
たので、当然同一の偏向力を有していた。このため偏平
管の様な上下非対称のブラウン管においては、上下非対
称な画面歪を発生してしまい、これを回路で補正するた
め非常に高価なものであった。なお、この種の装置とし
て関連するものには例えば特開昭60−81743号公報が挙
げられるが、本公知例はランディング補正に関するもの
である。In the conventional deflection yoke, since the upper and lower horizontal coils have the same length and the same number of turns and the same inductance, the deflection yoke naturally has the same deflection force. Therefore, in a vertically asymmetric Braun tube such as a flat tube, vertically asymmetrical screen distortion occurs, which is very expensive because it is corrected by a circuit. A device related to this type is disclosed in, for example, Japanese Patent Application Laid-Open No. 60-81743, and this known example relates to landing correction.
以下、従来技術を具体的に説明する。Hereinafter, the related art will be specifically described.
第３図は前述の偏平管の斜視図である。同図において、
１は偏平管の画面を示す。FIG. 3 is a perspective view of the flat tube described above. In the figure,
Reference numeral 1 shows a screen of the flat tube.
第４図（イ）は従来の偏向ヨークの正面図、第４図
（ロ）は同側面図、である。これらの図で、２は上側水
平コイル、３は下側水平コイル、４は磁性片、である。FIG. 4 (a) is a front view of a conventional deflection yoke, and FIG. 4 (b) is a side view of the same. In these figures, 2 is an upper horizontal coil, 3 is a lower horizontal coil, and 4 is a magnetic piece.
第５図（イ）は歪の無い良好な画面を示し、第５図
（ロ）は偏平な歪のある画面を示している。FIG. 5 (a) shows a good screen without distortion, and FIG. 5 (b) shows a screen with flat distortion.
さて、第３図に示す様な偏平質の場合、第４図特に第４
図（ロ）に示す様な上下バランスのとれた水平コイルを
有する偏向ヨークでは、電子ビームの走行距離の差等に
より、第５図（ロ）に示す様な画面歪を発生してしまう
わけである。Now, in the case of flatness as shown in Fig. 3, Fig. 4 especially
In a deflection yoke having a horizontal coil with a well-balanced vertical shape as shown in Fig. (B), the screen distortion as shown in Fig. 5 (B) may occur due to differences in the travel distance of the electron beam. is there.
これを補正するため、従来は回路によったり、或いは第
４図（イ）に見られるように、磁性片４を取り付けるな
どしていたため高価になるという欠点があった訳であ
る。In order to correct this, conventionally, there is a drawback that the cost is high because a magnetic piece 4 is attached by a circuit or as shown in FIG. 4 (a).
本発明の目的は、偏平管において回路での補正や磁性片
による補正を必要とすることなしに、歪のない良好な画
面を発生することのできる偏向ヨークを提供することに
ある。An object of the present invention is to provide a deflection yoke capable of generating a good screen without distortion without requiring correction in a circuit or correction by a magnetic piece in a flat tube.
上記目的を達成するために、本発明では、ブラウン管に
対し上下両側に対称的に分割配置されかつ略等しいコイ
ル開角の２つの水平コイルを、互いにコイル周長を異な
らせ、かつ、ブラウン管表示部の特性に対応し上記ブラ
ウン管の上下両側で互いに異なる偏向力を電子ビームに
与えるよう電子ビーム方向に互いに先端部位置をずらせ
て配する。In order to achieve the above-mentioned object, according to the present invention, two horizontal coils, which are symmetrically divided on the upper and lower sides of the CRT and have substantially the same coil opening angle, have different coil circumferences, and a CRT display unit. In order to apply different deflection forces to the electron beam on the upper and lower sides of the cathode ray tube corresponding to the characteristics of the above, the positions of the tip portions are shifted in the electron beam direction.
次に図を参照して本発明の実施例を説明する。第１図は
本発明の一実施例を示す側面図である。同図において、
２は上側水平コイル、３は下側水平コイルである。Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a side view showing an embodiment of the present invention. In the figure,
2 is an upper horizontal coil and 3 is a lower horizontal coil.
第１図では、下側水平コイル３の長さを上側水平コイル
２よりも長くしかつ下側水平コイル３の先端部の位置を
上側水平コイル２の先端部位置よりも電子ビームの走行
方向に突出させることにより、下側水平コイル３の偏向
感度を増大し、第５図（ロ）に示した画面歪を改善して
いる。In FIG. 1, the length of the lower horizontal coil 3 is made longer than that of the upper horizontal coil 2, and the position of the tip of the lower horizontal coil 3 is set in the traveling direction of the electron beam rather than the position of the tip of the upper horizontal coil 2. By making it protrude, the deflection sensitivity of the lower horizontal coil 3 is increased, and the screen distortion shown in FIG. 5B is improved.
第２図は本発明の別の実施例を示すための上下各水平コ
イルの結線図である。FIG. 2 is a connection diagram of upper and lower horizontal coils for showing another embodiment of the present invention.
第２図は、並列結線した水平コイルを示す。本実施例に
おいても、下側水平コイル３と上側水平コイル２のコイ
ル先端部の位置関係は、上記第１図の構成の場合と同様
である。FIG. 2 shows horizontal coils connected in parallel. Also in this embodiment, the positional relationship between the lower horizontal coil 3 and the upper horizontal coil 2 is the same as that in the case of the configuration shown in FIG.
本発明によれば、偏平管において従来、回路及び磁性片
により補正していた画面歪を、偏向ヨークのみで補正で
き、非常に安価なシステムとすることができる。According to the present invention, the screen distortion, which has been conventionally corrected by the circuit and the magnetic piece in the flat tube, can be corrected only by the deflection yoke, and a very inexpensive system can be obtained.
第１図は本発明の一実施例を示す側面図、第２図は本発
明の他の実施例を示すための上下各水平コイルの結線
図、第３図は偏平管の斜視図、第４図（イ）は従来の偏
向ヨークの正面図、同図（ロ）は側面図、第５図（イ）
は良好な画面歪を示す説明図、同図（ロ）は従来の偏向
ヨークにおける補正回路及び磁性片を使用しない時の画
面歪を示す説明図、である。 １……偏平管の画面、２……上側水平コイル ３……下側水平コイル、４……磁性片FIG. 1 is a side view showing an embodiment of the present invention, FIG. 2 is a connection diagram of upper and lower horizontal coils for showing another embodiment of the present invention, FIG. 3 is a perspective view of a flat tube, and FIG. Figure (a) is a front view of a conventional deflection yoke, (b) is a side view, and (b) in FIG.
Is an explanatory view showing a good screen distortion, and FIG. 6B is an explanatory view showing a screen distortion when the correction circuit and the magnetic piece in the conventional deflection yoke are not used. 1 ... Flat tube screen, 2 ... Upper horizontal coil 3 ... Lower horizontal coil, 4 ... Magnetic piece
Claims (3)
配置され互いに略等しいコイル開角の２つの水平コイル
を備えた偏向ヨークにおいて、 上記２つの水平コイルは、互いにコイル周長が異なり、
かつ、上記ブラウン管の表示部の特性に対応し上記ブラ
ウン管の上下両側で互いに異なる偏向力を電子ビームに
与えるよう電子ビーム方向に互いに先端部位置をずらせ
て配された構成であることを特徴とする偏向ヨーク。1. A deflection yoke comprising two horizontal coils symmetrically divided on the upper and lower sides with respect to a cathode ray tube and having substantially the same coil opening angles, wherein the two horizontal coils have different coil circumferences.
In addition, it is characterized in that the tip positions of the cathode ray tubes are displaced from each other in the electron beam direction so that different deflection forces are applied to the electron beams on the upper and lower sides of the cathode ray tube in accordance with the characteristics of the display portion of the cathode ray tube. Deflection yoke.
の表示部側のものの方が上記偏向力を強くされた構成で
ある特許請求の範囲第１項に記載の偏向ヨーク。2. The deflection yoke according to claim 1, wherein the two horizontal coils are configured such that the one on the display portion side of the cathode ray tube has the stronger deflection force.
配置され互いに略等しいコイル開角の２つの水平コイル
を備えた偏向ヨークを有して成る表示装置において、 上記２つの水平コイルは、互いにコイル周長が異なり、
かつ、上記ブラウン管の表示部の特性に対応しブラウン
管の上下両側で互いに異なる偏向力を電子ビームに与え
るよう電子ビーム方向に互いに先端部位置をずらせて配
された構成であることを特徴とする表示装置。3. A display device comprising a deflection yoke having two horizontal coils symmetrically divided on the upper and lower sides with respect to a cathode ray tube and having substantially the same coil opening angles, wherein the two horizontal coils are mutually separated. The coil circumference is different,
A display characterized in that the tip positions of the cathode ray tubes are displaced from each other in the electron beam direction so as to give different deflection forces to the electron beams on the upper and lower sides of the cathode ray tube in correspondence with the characteristics of the display portion of the cathode ray tube. apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12816487A JPH0673283B2 (en) | 1987-05-27 | 1987-05-27 | Deflection yoke and display device using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12816487A JPH0673283B2 (en) | 1987-05-27 | 1987-05-27 | Deflection yoke and display device using the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63294655A JPS63294655A (en) | 1988-12-01 |
| JPH0673283B2 true JPH0673283B2 (en) | 1994-09-14 |
Family
ID=14977974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12816487A Expired - Lifetime JPH0673283B2 (en) | 1987-05-27 | 1987-05-27 | Deflection yoke and display device using the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0673283B2 (en) |
-
1987
- 1987-05-27 JP JP12816487A patent/JPH0673283B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63294655A (en) | 1988-12-01 |
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