JPH07118283B2 - Color picture tube device - Google Patents
Color picture tube deviceInfo
- Publication number
- JPH07118283B2 JPH07118283B2 JP5891387A JP5891387A JPH07118283B2 JP H07118283 B2 JPH07118283 B2 JP H07118283B2 JP 5891387 A JP5891387 A JP 5891387A JP 5891387 A JP5891387 A JP 5891387A JP H07118283 B2 JPH07118283 B2 JP H07118283B2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic field
- deflection magnetic
- axis
- horizontal
- electron beam
- 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
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Description
【発明の詳細な説明】 ［発明の目的］ （産業上の利用分野） 本発明はインライン型電子銃を備えたカラー受像管装置
に関し、特に偏向装置を備えたインライン型カラー受像
管装置に関する。The present invention relates to a color picture tube device having an in-line type electron gun, and more particularly to an in-line color picture tube device having a deflecting device.
（従来の技術） インライン型カラー受像管装置は赤、緑、青３色発光の
蛍光体を被着した蛍光面を備えたパネル、この蛍光面に
向って電子ビームを照射する電子銃を備えたネック、こ
のネックとパネルとの間を接続するファンネルを外囲器
としている。ネック内部には中央および両側から、つま
り３本の電子ビームを照射するインライン型電子銃が内
蔵され、ファンネル外部には電子銃から照射された電子
ビームが蛍光面の表示領域に射突するように電子ビーム
を水平方向および垂直方向に偏向する偏向磁界発生装置
が装着される。またパネル内面には蛍光面に近接してシ
ャドウマスクが対向配置され、このシャドウマスクに開
けられた多数の小開口を通過した電子ビームが３色蛍光
体の所定位置に射突するようにされている。(Prior Art) An in-line type color picture tube device is provided with a panel having a phosphor screen coated with phosphors for emitting three colors of red, green and blue, and an electron gun for irradiating an electron beam toward the phosphor screen. The neck and the funnel that connects the neck and the panel are used as the envelope. Inside the neck, there is a built-in in-line type electron gun that irradiates three electron beams from the center and both sides. Outside the funnel, the electron beam emitted from the electron gun strikes the display area of the fluorescent screen. A deflection magnetic field generator for deflecting the electron beam in the horizontal and vertical directions is mounted. In addition, a shadow mask is arranged on the inner surface of the panel so as to be close to the phosphor screen, and the electron beam passing through a large number of small openings formed in the shadow mask is projected onto a predetermined position of the three-color phosphor. There is.
さて電子銃から照射された３本の電子ビームは蛍光面上
で集中（コンバージェンス）するように、水平偏向磁界
がピンクッション形に、垂直偏向磁界がバレル形になる
ように偏向磁界発生装置に工夫がなされている。これを
自己集中（セルフコンバージェンス）型磁界と称する。Now, in order to concentrate (converge) the three electron beams emitted from the electron gun on the phosphor screen, the deflection magnetic field generator is devised so that the horizontal deflection magnetic field becomes a pincushion type and the vertical deflection magnetic field becomes a barrel type. Has been done. This is called a self-convergence type magnetic field.
このような自己集中型磁界にするとビーム集中の調整に
必要な各種端子やコンバージェンスヨークやコンバージ
ェンス回路が不要になる等、多くの利点を有する。しか
しビームの自己集中のために磁界の歪を利用しているの
で蛍光面上の電子ビーム形状が歪むという欠点がある。
第11図（ａ）は蛍光面水平端部に偏向された電子ビーム
形状を示し、横長の明るいコア部（22）と、縦長の暗い
ハロー部（23）とに別れた歪んだ形になる。また第11図
（ｂ）は蛍光面垂直端部に偏向された電子ビーム形状を
示し、小さく明るい縦長のコア部（24）と、大きくて暗
い縦長のハロー部（25）とに別れた歪んだ形になる。Such a self-concentrating magnetic field has many advantages such as eliminating the need for various terminals, convergence yokes, and convergence circuits necessary for adjusting the beam concentration. However, since the distortion of the magnetic field is used for the self-focusing of the beam, the electron beam shape on the fluorescent screen is distorted.
FIG. 11 (a) shows the electron beam shape deflected to the horizontal edge of the phosphor screen, which has a distorted shape divided into a horizontally long bright core portion (22) and a vertically long dark halo portion (23). Further, FIG. 11 (b) shows the electron beam shape deflected to the vertical end portion of the phosphor screen, which is distorted into a small and bright vertically elongated core portion (24) and a large and dark vertically elongated halo portion (25). Take shape.
（発明が解決しようとする問題点） 以上のようにインライン型陰極線管装置においては水平
方向や垂直方向にに偏向された電子ビーム形状は歪むと
いう問題があり、カラー受像管の解像度劣化の一因にな
っている。(Problems to be Solved by the Invention) As described above, in the in-line type cathode ray tube device, there is a problem that the shape of the electron beam deflected in the horizontal direction or the vertical direction is distorted, which is a cause of deterioration in resolution of the color picture tube. It has become.
そこで本発明は、偏向された電子ビームの歪が少なく、
解像度をより向上したインライン型陰極線管装置を提供
することを目的とする。Therefore, according to the present invention, the distortion of the deflected electron beam is small,
An object is to provide an in-line type cathode ray tube device with further improved resolution.
［発明の構成］ （問題点を解決するための手段） 本発明は真空外囲器と、この外囲器内に配置される蛍光
面と、この蛍光面に向って中央および両サイド３本の電
子ビームを照射するインライン型電子銃と、 前記電子ビームが前記蛍光面の所定表示領域に射突する
よう電子ビームを水平方向および垂直方向に偏向する偏
向磁界発生装置とを備えたカラー受像管装置を対象とす
るものである。[Structure of the Invention] (Means for Solving the Problems) The present invention includes a vacuum envelope, a fluorescent screen disposed in the envelope, and a central and three side walls facing the fluorescent screen. Color picture tube device including an in-line type electron gun for irradiating an electron beam, and a deflection magnetic field generator for deflecting the electron beam in horizontal and vertical directions so that the electron beam impinges on a predetermined display area of the phosphor screen. It is intended for.
本発明は蛍光面の中心を基点として、水平方向に延びる
軸をＸ軸、垂直方向に延びる軸をＹ軸、蛍光面に垂直な
軸をＺ軸とするとき、 前記偏向磁界発生装置による水平偏向磁界はＹ軸とＺ軸
を含む平面（Ｙ−Ｚ平面）に対しほぼ対称であり電子ビ
ーム通過領域において主に垂直方向成分を持つバレル形
状の主偏向磁界と、 Ｙ軸とＺ軸を含む平面（Ｙ−Ｚ平面）に対しほぼ反対称
であり電子ビーム通過領域において主に垂直方向成分を
持つ補助偏向磁界とを有することを特徴とする。In the present invention, when the axis extending in the horizontal direction is the X axis, the axis extending in the vertical direction is the Y axis, and the axis perpendicular to the phosphor screen is the Z axis with the center of the phosphor screen as the base point, horizontal deflection by the deflection magnetic field generation device is performed. The magnetic field is substantially symmetric with respect to the plane including the Y axis and the Z axis (YZ plane), and the barrel-shaped main deflection magnetic field having a vertical component mainly in the electron beam passage region, and the plane including the Y axis and the Z axis It is characterized in that it has an anti-deflection magnetic field which is substantially anti-symmetric with respect to the (YZ plane) and has a vertical component mainly in the electron beam passage region.
（作用） まず本発明における水平偏向磁界について詳述する。(Operation) First, the horizontal deflection magnetic field in the present invention will be described in detail.
本発明において水平偏向磁界は、第１図（ａ）のような
バレル形である水平主偏向磁界（１）と、第１図（ｂ）
のような反対称形な補助偏向磁界（２）（３）からな
る。In the present invention, the horizontal deflection magnetic field is a barrel-shaped horizontal main deflection magnetic field (1) as shown in FIG. 1 (a) and FIG. 1 (b).
And an anti-symmetric auxiliary deflection magnetic field (2) (3).
水平主偏向磁界強度と補助偏向磁界強度との位置関係は
第２図（ａ）に示すように分布しており、水平主偏向磁
界強度のピーク位置はより蛍光面に近く、補助偏向磁界
強度のピーク位置はより電子銃に近い。The positional relationship between the horizontal main deflection magnetic field strength and the auxiliary deflection magnetic field strength is distributed as shown in FIG. 2 (a), the peak position of the horizontal main deflection magnetic field strength is closer to the fluorescent screen, and the auxiliary deflection magnetic field strength The peak position is closer to the electron gun.
なお、第２図（ａ）における横軸の０の位置は例えば電
子銃の頂部であり、Ｚ軸は電子銃の頂部から蛍光面へ向
う相対距離を表わす。The position of 0 on the horizontal axis in FIG. 2A is, for example, the top of the electron gun, and the Z axis represents the relative distance from the top of the electron gun to the fluorescent screen.
一般にＹ−Ｚ平面に関し対称な磁界強度は Ｂ＝B0＋B2X2＋B4X4＋ …（１） で表され、この（１）式において、水平偏向磁界に影響
するのは二次成分であるB2である。In general, the symmetric magnetic field strength with respect to the YZ plane is expressed by B = B 0 + B 2 X 2 + B 4 X 4 + (1), and in this equation (1), the secondary component affects the horizontal deflection magnetic field. Is B 2 .
一方、Ｙ−Ｚ平面に関して反対称な磁界の強さは Ｂ＝B1X＋B3X3＋B5X5＋ …（２） で表され、この（２）式において水平補助偏向磁界に影
響するのは一次成分であるB1である。これらを背景に、
第２図（ａ）における水平主偏向磁界強度の分布は二次
成分のB2を示し、補助偏向磁界強度の分布は一次成分の
B1を示す。On the other hand, anti-symmetric magnetic field strength with respect to Y-Z plane is expressed by B = B 1 X + B 3 X 3 + B 5 X 5 + ... (2), to influence the horizontal auxiliary deflection magnetic field in the (2) Is the first order component B 1 . Against these backgrounds,
The horizontal main deflection magnetic field strength distribution in FIG. 2 (a) shows B 2 of the secondary component, and the auxiliary deflection magnetic field strength distribution of the primary component.
Indicates B 1 .
第２図（ｂ）は第２図（ａ）における水平主偏向磁界お
よび補助偏向磁界が電子ビーム集中（コンバージェン
ス）およびビームスポット形状に与える影響に関する重
み関数を示す図である。図に示す通り、水平主偏向磁界
の重み関数（破線）は蛍光面側で大であり、補助偏向磁
界の重み関数（実線）は電子銃側で大である。FIG. 2B is a diagram showing a weighting function relating to the influence of the horizontal main deflection magnetic field and the auxiliary deflection magnetic field in FIG. 2A on the electron beam concentration (convergence) and the beam spot shape. As shown in the figure, the weighting function of the horizontal main deflection magnetic field (broken line) is large on the phosphor screen side, and the weighting function of the auxiliary deflection magnetic field (solid line) is large on the electron gun side.
偏向磁界が電子ビームに与える影響は第２図（ａ）の磁
界強度と第２図（ｂ）の重み関数との積に比例するが、
この様子を第２図（ｃ）に示す。The influence of the deflection magnetic field on the electron beam is proportional to the product of the magnetic field strength in FIG. 2 (a) and the weighting function in FIG. 2 (b),
This state is shown in FIG. 2 (c).
以上のことから、電子銃から蛍光面に向って進行してく
る電子ビームは、まず補助偏向磁界の影響を受け、次に
水平主偏向磁界の影響を受けることが理解される。From the above, it is understood that the electron beam traveling from the electron gun toward the fluorescent screen is first affected by the auxiliary deflection magnetic field and then by the horizontal main deflection magnetic field.
次に、本発明における電子ビームの様子を順を追って説
明する。Next, the state of the electron beam in the present invention will be described step by step.
電子銃から放射された電子ビームに、仮に主偏向磁界の
みを作用させた場合には蛍光面水平端部に偏向された電
子ビーム形状は第３図（ａ）のようにハロー部が消えた
縦長のコア部（５）のみが表われるようになる。しかし
ながら３電子ビームの集中はわずかに過集中状態にな
る。第３図（ｂ）はこの様子を示すもので、太線の枠は
蛍光面（画面）を表わし、細い縦線は３電子ビームのう
ちの一側ビーム（例えば赤色発光用ビーム）のランディ
ング位置を、細い破線は３電子ビームのうちの他側ビー
ム（例えば青色発光用ビーム）のランディング位置をそ
れぞれ表わす。If only the main deflection magnetic field is applied to the electron beam emitted from the electron gun, the shape of the electron beam deflected to the horizontal end of the fluorescent screen is vertically long with the halo portion disappearing as shown in FIG. 3 (a). Only the core part (5) of FIG. However, the concentration of the three electron beams is slightly over-concentrated. FIG. 3B shows this state, in which the bold frame represents the fluorescent screen (screen), and the thin vertical line represents the landing position of one side beam (for example, the red light emitting beam) of the three electron beams. , The thin broken lines represent the landing positions of the other side beam (for example, the blue emission beam) of the three electron beams.
次にこの状態で本発明で特定するような補助偏向磁界を
作用させると、水平偏向電子ビーム形状は第４図（ａ）
のようにハロー部が少ない横長のコア部（６）が表わ
れ、３電子ビームの集中も第４図（ｂ）に示すように両
側電子ビームがほぼ一致した良好な集中特性が得られ
る。Next, when an auxiliary deflection magnetic field as specified in the present invention is applied in this state, the horizontal deflection electron beam shape is shown in FIG. 4 (a).
As shown in FIG. 4 (b), the laterally elongated core portion (6) having few halo portions appears, and good concentration characteristics in which electron beams on both sides are substantially coincident are obtained as shown in FIG. 4 (b).
以上のように、補助偏向磁界の影響を受け、さらに電子
ビームが進行して水平主偏向磁界支配領域に入ると、バ
レル磁界の影響を受けて電子ビーム形状はより円形に近
づく。As described above, when the electron beam further advances under the influence of the auxiliary deflection magnetic field and enters the horizontal main deflection magnetic field governing region, the shape of the electron beam becomes closer to a circle due to the influence of the barrel magnetic field.
以上の通り、本発明によれば蛍光面上での電子ビーム形
状が良好で、３電子ビーム集中特性のよいインライン型
カラー受像管を実現することができる。As described above, according to the present invention, it is possible to realize an in-line type color picture tube having a good electron beam shape on the phosphor screen and a good three electron beam concentration characteristic.
（実施例） 図面により本発明を詳細に説明する。(Example) The present invention will be described in detail with reference to the drawings.
第５図は本発明のカラー受像管装置の概略断面図であ
る。パネル（８）、ファンネル（９）、およびネック
（10）とで外囲器を構成し、パネル（８）内面には赤色
発光蛍光体ドット、緑色発光蛍光体ドットおよび青色発
光蛍光体ドットが規則的に被着された蛍光面（11）が形
成されている。ネック（10）内部には蛍光面（11）に向
って中央および両側の３本の電子ビーム（Ｂ）（Ｇ）
（Ｒ）を照射するインライン型電子銃（13）が内蔵され
ており、電子ビーム（Ｂ）（Ｇ）（Ｒ）はファンネル
（９）外部に配置された水平偏向磁界発生装置および垂
直偏向磁界発生装置により偏向されて蛍光面（11）の表
示領域に射突する。FIG. 5 is a schematic sectional view of the color picture tube device of the present invention. The panel (8), the funnel (9), and the neck (10) constitute an envelope, and red light emitting phosphor dots, green light emitting phosphor dots, and blue light emitting phosphor dots are regularly formed on the inner surface of the panel (8). A fluorescent surface (11) that has been deposited on the surface. Inside the neck (10), there are three electron beams (B) (G) at the center and both sides facing the fluorescent screen (11).
An in-line type electron gun (13) for irradiating (R) is built in, and the electron beams (B) (G) (R) are arranged outside the funnel (9) to generate a horizontal deflection magnetic field generator and a vertical deflection magnetic field generator. It is deflected by the device and strikes the display area of the phosphor screen (11).
パネル（８）内面には蛍光面（11）に近接してシャドウ
マスク（12）が対向配置され、このシャドウマスク（1
2）に開けられた多数の小開口を通過した３本の電子ビ
ーム（Ｂ）（Ｂ）（Ｒ）が３色蛍光体の所定位置に射突
するようになされている。On the inner surface of the panel (8), a shadow mask (12) is arranged so as to face the fluorescent screen (11) so as to face the shadow screen (1).
The three electron beams (B), (B), and (R) that have passed through the large number of small openings formed in 2) are made to strike the predetermined positions of the three-color phosphor.
次に偏向磁界について詳述する。Next, the deflection magnetic field will be described in detail.
本発明における垂直偏向磁界は公知のものでよく、例え
ばフェライトコア（14）に巻かれたバレル磁界を発生す
るトロイダルコイル（15）により形成される。The vertical deflection magnetic field in the present invention may be a known one, and is formed by, for example, a toroidal coil (15) wound around a ferrite core (14) to generate a barrel magnetic field.
本発明における水平偏向磁界は水平主偏向磁界と補助偏
向磁界との組合せであり、その組合せは新規なものであ
る。The horizontal deflection magnetic field in the present invention is a combination of the horizontal main deflection magnetic field and the auxiliary deflection magnetic field, and the combination is novel.
水平主偏向磁界は第５図に示すようにセパレータ（16）
の内面にサドル形に巻かれたコイル（17）により形成さ
れ、水平補助偏向磁界はフェライトコア（14）に巻かれ
たトロイダルコイル（18）により形成される。従って、
フェライトコア（14）には垂直偏向コイル（15）および
補助偏向コイル（18）が巻かれる。As shown in Fig. 5, the horizontal main deflection magnetic field has a separator (16).
The horizontal auxiliary deflection magnetic field is formed by a toroidal coil (18) wound on a ferrite core (14), and the horizontal auxiliary deflection magnetic field is formed by a coil (17) wound in a saddle shape on the inner surface of the. Therefore,
A vertical deflection coil (15) and an auxiliary deflection coil (18) are wound around the ferrite core (14).
第６図（ａ）は補助偏向磁界のフェライトコア（14）お
よびトロイダルコイル（18）の拡大図であり、第６図
（ｂ）は第６図（ａ）に示すトロイダルコイルに流す電
流と時間との関係を示す図である。なお、第６図（ａ）
は垂直偏向コイル（15）図示は省略してある。FIG. 6 (a) is an enlarged view of the ferrite core (14) and the toroidal coil (18) of the auxiliary deflection magnetic field, and FIG. 6 (b) is the current and time passed through the toroidal coil shown in FIG. 6 (a). It is a figure which shows the relationship with. Incidentally, FIG. 6 (a)
The vertical deflection coil (15) is not shown.
垂直偏向磁界発生用コイル、水平主偏向磁界発生用コイ
ルおよび水平補助偏向磁界発生用コイルは互いに組合さ
れ、調整した後、くさび（19）を用いてカラー受像管の
外部に装着される。The vertical deflection magnetic field generating coil, the horizontal main deflection magnetic field generating coil, and the horizontal auxiliary deflection magnetic field generating coil are combined with each other, adjusted, and then mounted on the outside of the color picture tube using a wedge (19).
以上の様な構造により、電子銃から発射した電子ビーム
は垂直偏向磁界および水平偏向磁界により所定の偏向を
受けても、上述した種々の作用により、電子ビームの歪
は少なく、解像度の良好なカラー受像管装置を実現する
ことができる。With the structure as described above, even if the electron beam emitted from the electron gun is subjected to a predetermined deflection by the vertical deflection magnetic field and the horizontal deflection magnetic field, the distortion of the electron beam is small and the color with good resolution is obtained by the various actions described above. A picture tube device can be realized.
本発明における補助偏向磁界を形成するトロイダルコイ
ルは、第７図や第８図に示されるものでよく、第８図の
コイルには第10図のような電流を流せばよい。The toroidal coil forming the auxiliary deflection magnetic field in the present invention may be that shown in FIGS. 7 and 8, and the coil shown in FIG. 8 may be supplied with a current as shown in FIG.
また、９図に示すサドルコイルに第10図のような電流を
流して補助偏向磁界を形成することもできる。Further, an auxiliary deflection magnetic field can be formed by passing a current as shown in FIG. 10 through the saddle coil shown in FIG.
第８図や第９図のコイルに第10図の電流を流す場合は水
平主偏向磁界と補助偏向磁界は一組のコイルで形成する
ことが可能であるが、形成される磁界は第１図の（ａ）
水平主偏向磁界と（ｂ）補助偏向磁界を重畳した磁界と
なる。このような場合にもコイルの形状またはコイルに
流す電流を選択することによって水平主偏向磁界と補助
偏向磁界の磁界形状や磁界強度を独立に変えることがで
きる。When the current shown in FIG. 10 is passed through the coils shown in FIGS. 8 and 9, the horizontal main deflection magnetic field and the auxiliary deflection magnetic field can be formed by one set of coils, but the magnetic field formed is shown in FIG. (A)
The horizontal main deflection magnetic field and the auxiliary deflection magnetic field (b) are superposed. Even in such a case, the magnetic field shapes and the magnetic field strengths of the horizontal main deflection magnetic field and the auxiliary deflection magnetic field can be changed independently by selecting the shape of the coil or the current flowing through the coil.
［発明の効果］ 以上の通り、本発明によれば、偏向された電子ビームの
歪が少なくなり、解像度の良好なカラー受像管装置を実
現することができる。[Advantages of the Invention] As described above, according to the present invention, the distortion of the deflected electron beam is reduced, and a color picture tube device having a good resolution can be realized.
第１図は本発明に係る水平偏向磁界の概略形状を示す
図、第２図は本発明に係る水平主偏向磁界と補助偏向磁
界との関係を示す図、第３図および第４図は本発明にお
ける水平偏向磁界と磁界補正体とにより電子ビーム形状
および集中が変化する様子を説明する図、第５図は本発
明のカラー受像管装置の概略断面図、第６図乃至第９図
は本発明に係る補助偏向形成用コアやコイルの概略形状
を示す図、第10図は第８図や第９図のコイルに流す電流
を示す図、第11図は従来のカラー受像管装置において偏
向された電子ビームの形状を示す図である。 （１）……水平主偏向磁界形状、（２）（３）……補助
偏向磁界形状、（８）……パネル、（９）……ファンネ
ル、（10）……ネック、（11）……蛍光面、（13）……
電子銃、（14）……フェライトコア、（15）（18）……
トロイダルコイル、（17）……サドル形コイル、（20）
……最終電極、（21）……シールド部材。FIG. 1 is a diagram showing a schematic shape of a horizontal deflection magnetic field according to the present invention, FIG. 2 is a diagram showing a relationship between a horizontal main deflection magnetic field and an auxiliary deflection magnetic field according to the present invention, and FIGS. FIG. 5 is a diagram for explaining how the shape and concentration of the electron beam are changed by the horizontal deflection magnetic field and the magnetic field corrector in the invention, FIG. 5 is a schematic sectional view of a color picture tube device of the invention, and FIGS. FIG. 10 is a diagram showing a schematic shape of an auxiliary deflection forming core and a coil according to the present invention, FIG. 10 is a diagram showing a current flowing through the coil in FIGS. 8 and 9, and FIG. 11 is a deflection in a conventional color picture tube device. It is a figure which shows the shape of the emitted electron beam. (1) ... horizontal main deflection magnetic field shape, (2) (3) ... auxiliary deflection magnetic field shape, (8) ... panel, (9) ... funnel, (10) ... neck, (11) ... Fluorescent screen, (13) ……
Electron gun, (14) …… Ferrite core, (15) (18) ……
Toroidal coil, (17) …… Saddle coil, (20)
...... Final electrode, (21) …… Shield member.
Claims (2)
蛍光面と、この蛍光面に向って中央および両サイド３本
の電子ビームを照射するインライン型電子銃と、 前記電子ビームが前記蛍光面の所定表示領域に射突する
よう電子ビームを水平方向および垂直方向に偏向する偏
向磁界発生装置とを備えたカラー受像管装置において、 蛍光面の中心を基点として、水平方向に延びる軸をＸ
軸、垂直方向に延びる軸をＹ軸、蛍光面に垂直な軸をＺ
軸とするとき、 前記偏向磁界発生装置による水平偏向磁界はＹ軸とＺ軸
を含む平面（Ｙ−Ｚ平面）に対しほぼ対称であり電子ビ
ーム通過領域において主に垂直方向成分を持つバレル形
状の主偏向磁界と、 Ｙ軸とＺ軸を含む平面（Ｙ−Ｚ平面）に対しほぼ反対称
であり電子ビーム通過領域において主に垂直方向成分を
持つ補助偏向磁界とを有することを特徴とするカラー受
像管装置。1. A vacuum envelope, a phosphor screen disposed in the envelope, an in-line electron gun for irradiating an electron beam from the center and three electron beams on both sides toward the phosphor screen, and the electron. In a color picture tube device provided with a deflection magnetic field generator for deflecting an electron beam in horizontal and vertical directions so that the beam impinges on a predetermined display area of the phosphor screen, in the horizontal direction with the center of the phosphor screen as a base point. X axis
Axis, the axis extending in the vertical direction is the Y axis, and the axis perpendicular to the phosphor screen is Z
When used as an axis, the horizontal deflection magnetic field generated by the deflection magnetic field generator is substantially symmetric with respect to a plane including the Y axis and the Z axis (YZ plane), and has a barrel shape having a vertical component mainly in the electron beam passage region. A color having a main deflection magnetic field and an auxiliary deflection magnetic field which is substantially antisymmetric with respect to a plane including the Y axis and the Z axis (YZ plane) and has a vertical component mainly in an electron beam passage region. Picture tube device.
子銃に近い側にあり、水平主偏向磁界の強度のピーク位
置は蛍光面に近い側にあることを特徴とする特許請求の
範囲第１項記載のカラー受像管装置。2. The peak position of the intensity of the auxiliary deflection magnetic field is closer to the electron gun, and the peak position of the intensity of the horizontal main deflection magnetic field is closer to the fluorescent screen. The color picture tube device according to item 1.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5891387A JPH07118283B2 (en) | 1987-03-16 | 1987-03-16 | Color picture tube device |
| EP88104103A EP0283904B1 (en) | 1987-03-16 | 1988-03-15 | Color cathode ray tube apparatus |
| DE8888104103T DE3862879D1 (en) | 1987-03-16 | 1988-03-15 | COLOR CATHODE JET PIPE DEVICE. |
| US07/168,201 US4876478A (en) | 1987-03-16 | 1988-03-15 | Cathode ray tube apparatus with improved deflection unit |
| KR1019880002778A KR900005541B1 (en) | 1987-03-16 | 1988-03-16 | Color cathode-ray tube |
| CN88101395A CN1017105B (en) | 1987-03-16 | 1988-03-16 | Colour cathode-ray tube arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5891387A JPH07118283B2 (en) | 1987-03-16 | 1987-03-16 | Color picture tube device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63226860A JPS63226860A (en) | 1988-09-21 |
| JPH07118283B2 true JPH07118283B2 (en) | 1995-12-18 |
Family
ID=13098055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5891387A Expired - Lifetime JPH07118283B2 (en) | 1987-03-16 | 1987-03-16 | Color picture tube device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07118283B2 (en) |
-
1987
- 1987-03-16 JP JP5891387A patent/JPH07118283B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63226860A (en) | 1988-09-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |