JPH10302665A - Color selecting mechanism of cathode-ray tube - Google Patents
Color selecting mechanism of cathode-ray tubeInfo
- Publication number
- JPH10302665A JPH10302665A JP11144497A JP11144497A JPH10302665A JP H10302665 A JPH10302665 A JP H10302665A JP 11144497 A JP11144497 A JP 11144497A JP 11144497 A JP11144497 A JP 11144497A JP H10302665 A JPH10302665 A JP H10302665A
- Authority
- JP
- Japan
- Prior art keywords
- color selection
- thin plate
- color selecting
- color
- electrode thin
- 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2229/00—Details of cathode ray tubes or electron beam tubes
- H01J2229/07—Shadow masks
- H01J2229/0727—Aperture plate
- H01J2229/0738—Mitigating undesirable mechanical effects
- H01J2229/0744—Vibrations
Landscapes
- Electrodes For Cathode-Ray Tubes (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、陰極線管に使用さ
れる色選別機構に関する。The present invention relates to a color selection mechanism used for a cathode ray tube.
【0002】[0002]
【従来の技術】カラー陰極線管用の色選別機構として、
例えば図10に示すようなアパーチャグリルと称される
色選別機構1が知られている。この色選別機構1は、1
対の相対向する支持部材2及び3と、この支持部材2及
び3の両端部間に差し渡された弾性賦与部材4及び5と
からなる枠状の金属フレーム6が設けられ、このフレー
ム6の相対向する支持部材2及び3上間に一方向、即ち
画面水平方向に沿って多数のスリット状の電子ビーム透
過孔9を有するマスク部材、即ち色選別用電極薄板10
が架張されて成る。2. Description of the Related Art As a color selection mechanism for a color cathode ray tube,
For example, a color selection mechanism 1 called an aperture grill as shown in FIG. 10 is known. This color selection mechanism 1
A frame-shaped metal frame 6 comprising a pair of opposing support members 2 and 3 and elastic applying members 4 and 5 extending between both ends of the support members 2 and 3 is provided. A mask member having a large number of slit-shaped electron beam transmission holes 9 in one direction between the opposing support members 2 and 3, that is, along the horizontal direction of the screen, that is, a color selection electrode thin plate 10.
Is spanned.
【0003】色選別用電極薄板10は、金属薄板からな
り、多数の細い帯状のグリッド素体8を上記一方向に所
定ピッチをもって配列し、各隣り合うグリッド素体8間
に画面垂直方向に長いスリット状の電子ビーム透過孔9
を形成して構成され、弾性賦与部材4及び5によってグ
リッド素体8が所定張力をもって支持部材2及び3間に
架張される。The color selecting electrode thin plate 10 is made of a metal thin plate, and has a large number of thin strip-shaped grid elements 8 arranged at a predetermined pitch in the above-mentioned one direction. Slit-shaped electron beam transmission hole 9
The grid element 8 is stretched between the support members 2 and 3 with a predetermined tension by the elasticity imparting members 4 and 5.
【0004】この色選別機構1においては、グリッド素
体8の振動を防止するために、色選別用電極薄板10の
面に接触するようにグリッド素体8の配列方向に沿って
ダンパーワイヤ12が架張される。[0004] In the color selection mechanism 1, in order to prevent the vibration of the grid element 8, the damper wires 12 are arranged along the arrangement direction of the grid element 8 so as to contact the surface of the color selection electrode thin plate 10. It is stretched.
【0005】上述の色選別機構1は、次のような工程で
製造される。まず、フレーム6の支持部材2,3及び弾
性賦与部材4,5の夫々の側面にスプリングホルダー1
3を溶接し、また、弾性賦与部材4,5の夫々の下面に
弾性賦与部材4,5との間でバイメタル効果をもたせる
ための金属プレート(通称STCプレートという)18
を溶接する。次に、フレーム6の相対向する支持部材2
及び3間に色選別用電極薄板10を溶接する。このと
き、色選別用電極薄板10に所要の張力をかけるため、
溶接前にフレーム6に圧力をかけて両支持部材2及び3
の向き合う方向(Y方向)寸法を縮めて置き(いわゆる
ターンバックルを掛け)、その状態で溶接する。溶接
後、ターンバックルを解放して色選別用電極薄板10に
所要の張力をかけるようにしている。色選別用電極薄板
10を貼り終わった状態で炭酸ガス雰囲気炉を通して黒
化かせる。The above-described color selection mechanism 1 is manufactured by the following steps. First, the spring holder 1 is attached to each side surface of the support members 2 and 3 and the elasticity imparting members 4 and 5 of the frame 6.
3 and a metal plate (commonly called STC plate) 18 for providing a bimetal effect between the elastic applying members 4 and 5 on the lower surfaces of the elastic applying members 4 and 5, respectively.
To weld. Next, the supporting members 2 of the frame 6 facing each other
And the electrode thin plate 10 for color selection is welded between. At this time, in order to apply a required tension to the electrode plate 10 for color selection,
Before welding, pressure is applied to the frame 6 so that both support members 2 and 3
In the direction (Y direction) facing each other (the so-called turnbuckle is applied), and welding is performed in that state. After the welding, the turnbuckle is released to apply a required tension to the color selecting electrode thin plate 10. After the color-selecting electrode thin plate 10 has been pasted, it is turned black through a carbon dioxide atmosphere furnace.
【0006】次に、フレーム6の相対向する弾性賦与部
材4及び5に夫々ダンパースプリング14を取付け、こ
の相対向するダンパースプリング14間にダンパーワイ
ヤ12を張る。ダンパーワイヤ12は色選別用電極薄板
10の面を抑えて細いグリッド素体8の振動を抑える役
割をする。そして、最後に、色選別機構1を陰極線管の
パネルに固定するためのスプリング15が各スプリング
ホルダー13に溶接される。このようにして色選別機構
1が組み立てられる。Next, damper springs 14 are attached to the opposing elastic applying members 4 and 5 of the frame 6, respectively, and a damper wire 12 is stretched between the opposing damper springs 14. The damper wire 12 has a role of suppressing the surface of the color selecting electrode thin plate 10 to suppress the vibration of the thin grid element 8. Finally, a spring 15 for fixing the color selection mechanism 1 to the panel of the cathode ray tube is welded to each spring holder 13. Thus, the color selection mechanism 1 is assembled.
【0007】[0007]
【発明が解決しようとする課題】従来の色選別機構1に
おいて、フレーム6の支持部材2及び3の面、即ち色選
別用電極薄板10が溶接される面17は、Y方向から見
て単一RZ (曲率半径)の曲面となるように形成され、
従って、この支持部材2及び3間の色選別用電極薄板1
0も、そのY方向から見て単一RZ の曲面で架張されて
いる。In the conventional color selection mechanism 1, the surfaces of the support members 2 and 3 of the frame 6, that is, the surface 17 to which the color selection electrode thin plate 10 is welded are formed in a single R Z (radius of curvature) is formed to be a curved surface,
Therefore, the electrode plate 1 for color selection between the support members 2 and 3
0 has also been stretched by a curved surface of a single R Z when viewed from the Y direction.
【0008】ところで、色選別機構1を備えたカラー陰
極線管をテレビセットに組み込んだ場合、スピーカーか
らの音声出力の振動によって色選別機構1の支持スプリ
ング15で支持されているフレーム6が振動し、その振
動が色選別用電極薄板10(従ってそのグリッド素体
8)と共振して大きな振動を引き起こし、ビームランデ
ィングを乱す、いわゆるグリッド素体揺れの問題が生ず
る。このグリッド素体揺れを軽減するために、前述した
ように、色選別機構1の色選別用電極薄板10には、ダ
ンパーワイヤ12が架張される。When a color cathode ray tube having the color selection mechanism 1 is incorporated into a television set, the frame 6 supported by the support spring 15 of the color selection mechanism 1 vibrates due to the vibration of the audio output from the speaker. The vibration resonates with the color selection electrode thin plate 10 (therefore, the grid element body 8) to cause a large vibration, which disturbs beam landing, that is, a so-called grid element shaking problem occurs. As described above, a damper wire 12 is stretched over the color selection electrode thin plate 10 of the color selection mechanism 1 in order to reduce the grid element shaking.
【0009】一方、近時、画面のフラット(平面)化に
伴い、パネル形状がほぼ平面に近い陰極線管が製作され
るようになってきた。このパネル形状のフラット化に伴
い色選別機構1のZ方向の曲率半径RZ が非常に大きく
なってきている。このため、平面に近い色選別機構1で
は、ダンパーワイヤ12と各グリッド素体8との間の摩
擦力が弱くなり、音声や衝撃によるグリッド素体8の振
動を抑止する力が弱くなるという不都合が生じていた。On the other hand, recently, as the screen becomes flat (flat), a cathode ray tube whose panel shape is almost flat has been manufactured. With the flattening of the panel shape, the radius of curvature R Z in the Z direction of the color selection mechanism 1 has become extremely large. For this reason, in the color selection mechanism 1 which is close to a plane, the frictional force between the damper wire 12 and each grid element 8 is weakened, and the force for suppressing the vibration of the grid element 8 due to sound or impact is weakened. Had occurred.
【0010】本発明は、上述の点に鑑み、陰極線管の画
面のフラット化に対応できるようにした陰極線管の色選
別機構を提供するものである。The present invention has been made in view of the above points, and provides a color selection mechanism for a cathode ray tube adapted to cope with a flat screen of the cathode ray tube.
【0011】[0011]
【課題を解決するための手段】本発明に係る色選別機構
は、色選別用電極薄板の画面水平方向に沿う曲線の2次
微分値を、フレーム振動に共振する領域で部分的に他領
域より大に設定した構成とする。A color selection mechanism according to the present invention is characterized in that a secondary differential value of a curve along a horizontal direction of a screen of a color selection electrode thin plate is partly resonated with frame vibration from other regions. The configuration is set to be large.
【0012】本発明によれば、色選別用電極薄板のフレ
ーム振動に共振する領域での曲線の2次微分値を他領域
より大きくすることにより、色選別機構の全体的な曲率
を変えることなく、上記共振する領域でのダンパーワイ
ヤの効力を大きくすることができ、信頼性の高いフラッ
ト化した色選別機構が得られる。According to the present invention, the second-order differential value of the curve in the region resonating with the frame vibration of the color-selecting electrode thin plate is made larger than that in the other region, so that the overall curvature of the color-selecting mechanism is not changed. In addition, the effectiveness of the damper wire in the above-described resonance region can be increased, and a highly reliable flat color selection mechanism can be obtained.
【0013】[0013]
【発明の実施の形態】本発明に係る陰極線管の色選別機
構は、フレーム上に色選別用電極薄板が架張され、色選
別用電極薄板の画面水平方向に沿う曲線の2次微分値が
色選別用電極薄板のフレーム振動に共振する領域で部分
的に他領域より大きく設定された構成とする。DESCRIPTION OF THE PREFERRED EMBODIMENTS A color selection mechanism for a cathode ray tube according to the present invention has a color selection electrode thin plate stretched on a frame, and a second derivative value of a curve of the color selection electrode thin plate along a screen horizontal direction is obtained. A region that resonates with the frame vibration of the color selection electrode thin plate is partially set to be larger than other regions.
【0014】本発明は、上記陰極線管の色選別機構にお
いて、色選別用電極薄板上に振動防止用のダンパーワイ
ヤが張られた構成とする。According to the present invention, in the above-mentioned color selection mechanism for a cathode ray tube, a damper wire for preventing vibration is stretched on a color selection electrode thin plate.
【0015】以下、図面を参照して説明する。A description will be given below with reference to the drawings.
【0016】先ず、本発明の理解を容易にするために、
ダンパーワイヤと色選別用電極薄板との摩擦力、フレー
ムの振動、色選別用電極薄板の固有振動数分布等につい
て考察する。First, in order to facilitate understanding of the present invention,
The frictional force between the damper wire and the electrode plate for color selection, the vibration of the frame, the natural frequency distribution of the electrode plate for color selection, and the like are considered.
【0017】図9に、多数のグリッド素体8及び電子ビ
ーム透過孔9を有してフレーム上に架張された色選別用
電極薄板10と、ダンパーワイヤ12の模式図を示す。
図9から、ダンパーワイヤ12と色選別用電極薄板10
のグリッド素体8との間に働く摩擦力Wは数1で求めら
れる。FIG. 9 is a schematic view of a color selecting electrode thin plate 10 having a large number of grid elements 8 and electron beam transmitting holes 9 and being stretched on a frame, and a damper wire 12.
FIG. 9 shows that the damper wire 12 and the color selecting electrode thin plate 10
The frictional force W acting on the grid element 8 is obtained by Equation 1.
【0018】[0018]
【数1】W=μF=μTsinθ ここで、μは摩擦係数、Tはダンパーワイヤの張力、F
はポイントP(O,Pz)においてダンパーワイヤ12
によってグリッド素体8が受けるグリッド素体面に垂直
な力を示す。W = μF = μT sin θ where μ is the friction coefficient, T is the tension of the damper wire, F
Is the damper wire 12 at the point P (O, Pz).
Indicates a force that the grid body 8 receives and is perpendicular to the grid body surface.
【0019】ポイントPでのダンパーワイヤ12と接線
とのなす角θは非常に小さいので、Since the angle θ between the damper wire 12 and the tangent at the point P is very small,
【数2】sinθ≒tanθ≒Pz となり、この数2を数1に代入することによって数3が
導かれる。## EQU2 ## Equation 3 is derived by substituting Equation 2 into Equation 1.
【数3】W=μT・Pz## EQU3 ## W = μT · Pz
【0020】Pzは、ポイントPの左側の直線の傾きと
右側の直線の傾きの差にあたり、いわゆる2次微係数、
つまり2次微分値に相当する。この数3から、ポイント
Pのグリッド素体8とダンパーワイヤ12との摩擦力W
は、ダンパーワイヤ12の張力TとそのポイントPの2
次微分値に比例すると考えてよい。Pz is the difference between the slope of the straight line on the left side of the point P and the slope of the straight line on the right side, and is a so-called second derivative,
That is, it corresponds to the second derivative. From Equation 3, the frictional force W between the grid element 8 at the point P and the damper wire 12 is obtained.
Is the difference between the tension T of the damper wire 12 and its point P.
It can be considered that it is proportional to the second derivative.
【0021】次に、図7の曲線は例えば28インチ型の
フラット型カラー陰極線管における色選別機構、即ち、
その色選別用電極薄板10の固有振動数分布を示す。縦
軸は固有振動数(Hz)、横軸は色選別用電極薄板10
の中心からX方向の距離(mm)、即ちX座標である。Next, the curve in FIG. 7 shows a color selection mechanism for a 28-inch flat color cathode ray tube, for example,
The natural frequency distribution of the color selecting electrode thin plate 10 is shown. The vertical axis is the natural frequency (Hz), and the horizontal axis is the color selecting electrode thin plate 10.
Is the distance (mm) in the X direction from the center of, that is, the X coordinate.
【0022】また、図8は、同じく28インチ型の色選
別機構における音声出力5W時のフレーム振動の例を示
す。FIG. 8 shows an example of frame vibration at a sound output of 5 W in the same 28-inch type color selection mechanism.
【0023】図8によれば、フレームは260Hz付近
で振動のピークを持つ。このため、色選別用電極薄板1
0では、図7に示すように、X座標で画面中心から12
5mm付近に固有振動数260Hzをもつことから、X
座標で125mm付近をピークに80mmから170m
m程度の範囲で、フレームの振動に共振してグリッド素
体8が大きく振動する。According to FIG. 8, the frame has a vibration peak near 260 Hz. For this reason, the electrode plate for color selection 1
In the case of 0, as shown in FIG.
Since it has a natural frequency of 260 Hz near 5 mm, X
Peak from around 125mm in coordinates to 80m to 170m
In the range of about m, the grid element 8 vibrates largely due to resonance with the vibration of the frame.
【0024】本発明は、上述の考察結果に基いて、ダン
パーワイヤと色選別用電極薄板との摩擦力を全面で最適
化しグリッド素体揺れを防ぐように色選別機構を構成す
る。According to the present invention, based on the above-mentioned considerations, the color selection mechanism is configured to optimize the frictional force between the damper wire and the color selection electrode thin plate over the entire surface and to prevent the grid element body from swaying.
【0025】図2A,B及び図3(要部の拡大図)は、
本発明に係る色選別機構のフレーム21を示す。このフ
レーム21は、前述と同様に、相対向する1対の支持部
材22及び23と、両支持部材22及び23の端部間に
差し渡された1対の弾性賦与部材24及び25とから成
る枠状の金属フレームである。FIGS. 2A and 2B and FIG. 3 (enlarged view of a main part)
2 shows a frame 21 of the color selection mechanism according to the present invention. As described above, the frame 21 includes a pair of opposing support members 22 and 23 and a pair of elasticity applying members 24 and 25 extending between the ends of the support members 22 and 23. It is a frame-shaped metal frame.
【0026】このフレーム21は、支持部材22及び2
3の面、すてわち色選別用電極薄板が溶接される面26
に所要の曲率の分布を有して成る。即ち、フレーム21
は、支持部材22,23の面26、従ってそのX−Z平
面での曲線に関して、全体的な曲率を変えずに(いわゆ
る図3における支持部材22,23の面26の中心位置
と端部位置間の高さhを変えずに)、色選別用電極薄板
10で問題となる振動が大きくなる領域に対応した領域
aのみ部分的に他領域bに比べて曲線の2次微係数、つ
まり2次微分値が大きくなるように、支持部材22,2
3の面26に曲率の分布をつけて構成する。従って、図
3に示すように支持部材22,23の面26では、その
領域aの曲率半径RZ2が他領域bの曲率半径RZ1より小
(RZ2<RZ1)に設定される。The frame 21 includes support members 22 and 2
3, the surface 26 to which the electrode sheet for color selection is to be welded
Having a required curvature distribution. That is, the frame 21
Can be obtained without changing the overall curvature with respect to the surface 26 of the support members 22, 23, and thus the curve in the XZ plane (the so-called center and end positions of the surface 26 of the support members 22, 23 in FIG. 3). (The height h between them is not changed), and only the region a corresponding to the region where the problematic vibration increases in the color selecting electrode thin plate 10 is partially compared with the other region b in the second derivative of the curve, that is, 2 The supporting members 22 and 2 are set so that the next differential value increases.
The third surface 26 has a curvature distribution. Accordingly, as shown in FIG. 3, on the surface 26 of the support members 22 and 23, the radius of curvature R Z2 of the region a is set smaller than the radius of curvature R Z1 of the other region b (R Z2 <R Z1 ).
【0027】そして、本発明では、図1A,Bに示すよ
うに、上記の支持部材22,23を有するフレーム21
に前述したと同様の色選別用電極薄板10を溶接によっ
て架張し、且つ色選別用電極薄板10上に接触してダン
パーワイヤ12を架張して色選別機構28を構成する。
なお、図1A,Bにおいて前述の図10に対応する部分
には同一符号を付して重複説明を省略する。In the present invention, as shown in FIGS. 1A and 1B, a frame 21 having the above-mentioned support members 22 and 23 is provided.
The color selection mechanism 28 is formed by welding the color selection electrode thin plate 10 similar to that described above by welding, and by contacting the color selection electrode thin plate 10 with the damper wire 12.
1A and 1B, parts corresponding to those in FIG. 10 described above are denoted by the same reference numerals, and redundant description is omitted.
【0028】色選別用電極薄板10は、支持部材22,
23の面26に沿って架張されるので、この色選別用電
極薄板10の画面水平方向の曲線、いわゆるX−Z平面
での曲線も、支持部材22,23の面26の曲線と同様
の曲率の分布をもつ。The electrode plate 10 for color selection includes a support member 22,
Since it is stretched along the surface 26 of the support member 23, the curve in the horizontal direction of the screen of the color selecting electrode thin plate 10, that is, the curve in the so-called XZ plane is the same as the curve of the surface 26 of the support members 22, 23. It has a distribution of curvature.
【0029】図4は、例えば28インチ型のフラット型
カラー陰極線管に適用される色選別機構について、従来
の単一RZ (=5600mm)における色選別用電極薄
板の面、従ってフレーム6の支持部材2,2の面17の
X−Z平面での曲線(符号II参照)と、本発明による色
選別用電極薄板の面、従ってフレーム21の支持部材2
2,23の面26のX−Z平面での曲線(符号III 参
照)と、夫々の曲線の2次微分値(符号IVは従来、符号
Vは本発明)とを示す。FIG. 4 shows a color selection mechanism applied to, for example, a 28-inch flat type color cathode ray tube, the surface of the conventional color selection electrode thin plate in a single R Z (= 5600 mm), and thus the support of the frame 6. The curve (see symbol II) of the surface 17 of the members 2 and 2 in the XZ plane and the surface of the color-selecting electrode sheet according to the invention, and thus the support member 2 of the frame 21
2 and 3 show curves (see reference numeral III) on the XZ plane of the surface 26 and second derivative values of respective curves (reference numeral IV is conventional, and reference V is the present invention).
【0030】両者ともに、曲線の全高さh(図3の高さ
h参照)は7mm程度でほぼ同じであるので、曲線の全
体的曲率は同じである。そして、本発明による曲線(符
号III)では、振動が大きいX=80mm〜170mmの
範囲で2次微分値が、他の部分に比べて大きくなってお
り(符号V参照)、従来の単一RZ の曲線(符号II)よ
りX=80mm〜170mmの範囲で2次微分値が約
1.5倍になっている(符号IV,V参照)。図5は、図
4に対応した本発明による28インチ型の色選別機構2
8の曲率の分布を示している。In both cases, the total height h of the curves (see height h in FIG. 3) is approximately the same at about 7 mm, so that the overall curvatures of the curves are the same. In the curve according to the present invention (symbol III), the second derivative is larger than other parts in the range of X = 80 mm to 170 mm where the vibration is large (see symbol V). From the curve of Z (symbol II), the secondary differential value is about 1.5 times in the range of X = 80 mm to 170 mm (see symbols IV and V). FIG. 5 shows a 28-inch color selection mechanism 2 according to the present invention corresponding to FIG.
8 shows a distribution of curvature.
【0031】上記図4、図5から、振動が大きくなる領
域aのグリッド素体8に働くダンパーワイヤとの摩擦力
も単一RZ の曲線に比べて約1.5倍になると考えら
れ、振動が大きくなる領域aでダンパーワイヤ12の効
力が大きくなり、グリッド素体揺れを小さくできる。こ
の結果を図6に示す。同図は音声出力5Wでの色選別用
電極薄板の振幅を示している。符号VIは従来のもの、符
号VII は本発明のものである。本発明の色選別機構で
は、従来の単一RZ の色選別機構に比べて振動を受けた
ときの色選別用電極薄板の振幅のピークが約30%小さ
くなっている。[0031] FIG 4, FIG. 5, the frictional force of the damper wire acting on the grid elements 8 in the region a vibration is greater thought to be about 1.5 times as compared with the curve of the single R Z, vibration The effect of the damper wire 12 is increased in the region a where is larger, and the shaking of the grid body can be reduced. The result is shown in FIG. The figure shows the amplitude of the electrode plate for color selection at an audio output of 5 W. Symbol VI is a conventional one, and symbol VII is the present invention. In the color selection mechanism of the present invention, the peak of the amplitude of the color selection electrode thin plate when subjected to vibration is reduced by about 30% as compared with the conventional single RZ color selection mechanism.
【0032】本発明によれば、陰極線管の画面のフラッ
ト化に伴って色選別機構の面をフラット化した場合に
も、振動が大きくなる領域での曲線の2次微分値を大き
くすることによって、色選別用電極薄板10とダンパー
ワイヤ12との摩擦力を全面で最適化することができ、
グリッド素体揺れを起こしにくくすることができる。従
って、信頼性の高いフラット型の色選別機構が得られ、
前面パネル形状が非常にフラット化された陰極線管を実
現することができる。According to the present invention, even when the surface of the color selection mechanism is flattened in accordance with the flattening of the screen of the cathode ray tube, the second derivative of the curve in the region where the vibration increases is increased. The frictional force between the color selecting electrode thin plate 10 and the damper wire 12 can be optimized over the entire surface,
It is possible to make it difficult for the grid element body to shake. Therefore, a highly reliable flat type color sorting mechanism can be obtained,
A cathode ray tube with a very flat front panel can be realized.
【0033】尚、本発明は、カラー陰極線管の大きさに
伴う色選別機構の大きさに応じてフレームの振動に共振
する範囲が異なるので、その共振する範囲での2次微分
値を他部より大きくするようになすものである。In the present invention, the range in which the frame resonates with the vibration of the frame differs depending on the size of the color selection mechanism associated with the size of the color cathode ray tube. It is to make it larger.
【0034】従って、信頼性の高いフラット型色選別機
構が得られ、前面パネル形状がフラット化されたカラー
陰極線管の実施を可能にする。Accordingly, a highly reliable flat type color selection mechanism can be obtained, and a color cathode ray tube having a flat front panel can be realized.
【0035】[0035]
【発明の効果】本発明に係る色選別機構によれば、フラ
ット型カラー陰極線管用の様に全体の曲率を変えること
ができない色選別機構においても、そのフレームと色選
別用電極薄板の共振点付近で部分的に曲線の2次微分値
を他部より大きくすることによって、ダンパーワイヤと
色選別用電極薄板との摩擦力を全面で最適化することが
でき、色選別用電極薄板の揺れを防ぐことができる。従
って、前面パネル形状がフラット化されたカラー陰極線
管の実施を可能にする。According to the color selection mechanism of the present invention, even in a color selection mechanism in which the entire curvature cannot be changed as in the case of a flat type color cathode ray tube, the vicinity of the resonance point between the frame and the color selection electrode thin plate. By partially increasing the second derivative of the curve from that of the other part, the frictional force between the damper wire and the color-selecting electrode sheet can be optimized over the entire surface, and the color-selecting electrode sheet can be prevented from shaking. be able to. Therefore, it is possible to implement a color cathode ray tube having a flat front panel.
【図1】A 本発明に係る色選別機構の一例を示す平面
図である。 B 本発明に係る色選別機構の一例を示す側面図であ
る。FIG. 1A is a plan view illustrating an example of a color selection mechanism according to the present invention. B is a side view showing an example of the color selection mechanism according to the present invention.
【図2】A 本発明に係る色選別機構用フレームの一例
を示す平面図である。 B 本発明に係る色選別機構用フレームの一例を示す側
面図である。FIG. 2A is a plan view showing an example of a frame for a color selection mechanism according to the present invention. B It is a side view which shows an example of the frame for color selection mechanisms which concerns on this invention.
【図3】本発明に係る色選別機構用フレームの要部の模
式図である。FIG. 3 is a schematic view of a main part of a frame for a color selection mechanism according to the present invention.
【図4】従来の単一Rの色選別機構の面の曲線と本発明
に係る色選別機構の面の曲線と夫々の曲線の2次微分値
を示すグラフである。FIG. 4 is a graph showing the surface curve of the conventional single R color selection mechanism, the surface curve of the color selection mechanism according to the present invention, and the second derivative of each curve.
【図5】図4に対応した本発明に係る色選別機構の面の
曲率分布の状態を示す要部の側面図である。5 is a side view of a main part showing a state of curvature distribution of a surface of the color selection mechanism according to the present invention corresponding to FIG. 4;
【図6】本発明に係る色選別機構と従来の色選別機構の
振動を受けたときの振幅を示すグラフである。FIG. 6 is a graph showing amplitudes of the color selection mechanism according to the present invention and a conventional color selection mechanism when subjected to vibration.
【図7】色選別機構の色選別用電極薄板の固有振動数分
布を示すグラフである。FIG. 7 is a graph showing a natural frequency distribution of a color selection electrode thin plate of the color selection mechanism.
【図8】色選別機構のフレームの振動を示すグラフであ
る。FIG. 8 is a graph showing the vibration of the frame of the color selection mechanism.
【図9】色選別用電極薄板とダンパーワイヤの模式図で
ある。FIG. 9 is a schematic diagram of a thin electrode for color selection and a damper wire.
【図10】色選別機構の斜視図である。FIG. 10 is a perspective view of a color selection mechanism.
8 グリッド素体、9 電子ビーム透過孔、10 色選
別用電極薄板、12ダンパーワイヤ、6,21 フレー
ム、2,3,22,23 支持部材、4,5,24,2
5 弾性賦与部材、26 面、1,28 色選別機構8 grid body, 9 electron beam transmission hole, 10 color selection electrode thin plate, 12 damper wire, 6,21 frame, 2,3,22,23 support member, 4,5,24,2
5 Elasticity imparting member, 26 surfaces, 1,28 color sorting mechanism
Claims (2)
れ、 前記色選別用電極薄板の画面水平方向に沿う曲線の2次
微分値が、 前記色選別用電極薄板のフレーム振動に共振する領域
で、部分的に他領域より大きく設定されて成ることを特
徴とする陰極線管の色選別機構。An electrode thin plate for color selection is stretched on a frame, and a second derivative of a curve along a horizontal direction of a screen of the thin plate for color selection resonates with frame vibration of the thin electrode for color selection. A color selection mechanism for a cathode ray tube, wherein the color selection mechanism is partially set larger than another area.
ダンパーワイヤが張られて成ることを特徴とする請求項
1に記載の陰極線管の色選別機構。2. The color selection mechanism for a cathode ray tube according to claim 1, wherein a damper wire for preventing vibration is stretched on the color selection electrode thin plate.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11144497A JP3287264B2 (en) | 1997-04-28 | 1997-04-28 | Cathode ray tube and its color selection mechanism |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11144497A JP3287264B2 (en) | 1997-04-28 | 1997-04-28 | Cathode ray tube and its color selection mechanism |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH10302665A true JPH10302665A (en) | 1998-11-13 |
JP3287264B2 JP3287264B2 (en) | 2002-06-04 |
Family
ID=14561364
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Application Number | Title | Priority Date | Filing Date |
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JP11144497A Expired - Fee Related JP3287264B2 (en) | 1997-04-28 | 1997-04-28 | Cathode ray tube and its color selection mechanism |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1107281A1 (en) * | 1999-12-08 | 2001-06-13 | Sony Electronics (Singapore) Pte. Ltd. | A frame for a colour selection mechanism for a cathode ray tube |
SG97824A1 (en) * | 1999-12-08 | 2003-08-20 | Sony Electronics Singapore Pte | A frame for a colour selection mechanism for a cathode ray tube |
-
1997
- 1997-04-28 JP JP11144497A patent/JP3287264B2/en not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1107281A1 (en) * | 1999-12-08 | 2001-06-13 | Sony Electronics (Singapore) Pte. Ltd. | A frame for a colour selection mechanism for a cathode ray tube |
US6366010B1 (en) * | 1999-12-08 | 2002-04-02 | Sony Electronics (Singapore) Pte, Ltd. | Frame for a color selection mechanism for a cathode ray tube |
SG97824A1 (en) * | 1999-12-08 | 2003-08-20 | Sony Electronics Singapore Pte | A frame for a colour selection mechanism for a cathode ray tube |
Also Published As
Publication number | Publication date |
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JP3287264B2 (en) | 2002-06-04 |
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