JPH07109755B2 - Color-selective electrodes for color cathode ray tubes - Google Patents
Color-selective electrodes for color cathode ray tubesInfo
- Publication number
- JPH07109755B2 JPH07109755B2 JP61030235A JP3023586A JPH07109755B2 JP H07109755 B2 JPH07109755 B2 JP H07109755B2 JP 61030235 A JP61030235 A JP 61030235A JP 3023586 A JP3023586 A JP 3023586A JP H07109755 B2 JPH07109755 B2 JP H07109755B2
- Authority
- JP
- Japan
- Prior art keywords
- grid structure
- color
- cathode ray
- grid
- metal strips
- 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
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- Electrodes For Cathode-Ray Tubes (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、カラー陰極線管の色選択電極に関する。The present invention relates to a color selection electrode of a color cathode ray tube.
本発明は、多数の金属細条を配列し各金属細条間にスリ
ットを形成して成るグリッド構体をフレーム上に架張し
て成るカラー陰極線管の色選択電極において、互いに共
振周波数を異にし、スリットピッチの等しい複数種のグ
リッド構体を重ねて架張することによって、高精細度化
に伴う金属細条の振動を抑制するようにしたものであ
る。The present invention relates to a color selection electrode of a color cathode ray tube in which a grid structure formed by arranging a large number of metal strips and forming slits between the metal strips is laid on a frame, and having different resonance frequencies. In this structure, a plurality of types of grid structures having the same slit pitch are overlapped and stretched to suppress the vibration of the metal strip due to the high definition.
トリニトロン（登録商標）方式のカラー陰極線管に使用
される色選択電極は、例えば第３図及び第４図に示すよ
うに多数の金属細条（１）が一方向に所定ピッチをもっ
て配列され、各金属細条（１）間に電子ビームが透過す
るスリット（２）が形成されたグリッド構体（いわゆる
アパーチグリル）（３）を、枠状のフレーム（４）の相
対向する１対の支持部材（５）及び（６）間に架張して
構成される。A color selection electrode used in a Trinitron (registered trademark) type color cathode ray tube has a large number of metal strips (1) arranged in one direction at a predetermined pitch as shown in FIGS. 3 and 4, for example. A grid structure (so-called aperture grill) (3) having slits (2) for transmitting electron beams formed between metal strips (1) is provided with a pair of supporting members (5) facing each other of a frame (4). ) And (6).
フレーム（４）は相対向する１対の支持部材（５）及び
（６）と両支持部材（５）及び（６）に差し渡った１対
の弾性部材（７）及び（８）とによって枠状に構成され
る。このように構成された色選択電極（９）では金属細
条（１）の振動を防ぐためにグリッド構体（３）の螢光
面側の面上に接してダンパー線（10）が架張される。The frame (4) is composed of a pair of supporting members (5) and (6) facing each other and a pair of elastic members (7) and (8) extending over the supporting members (5) and (6). Configured into a shape. In the color selection electrode (9) configured as described above, the damper wire (10) is stretched in contact with the surface of the grid structure (3) on the fluorescent surface side to prevent the vibration of the metal strip (1). .
近時、上述のカラー陰極線管においても、ターミナル用
ディスプレイ或は高精細度管等に対応するために、高精
細度化が進められている。このために、色選択電極
（９）のグリッド構体（３）のピッチも細かくなり、こ
れに伴って金属細条（１）の幅も狭くなるために、必然
的に金属細条（１）の強度が低下するものであった。グ
リッド構体（３）の振動を抑えるためには金属細条
（１）の張力を上げることが行われているが、高精細度
化に対応したグリッド構体では金属細条（１）の幅が狭
くなり強度が低下するために、従来のように金属細条の
張力を上げることが出来ない。又、ノーインタレスにな
りダンパー線（10）も目立ち易くなるためダンパー線
（10）も細くする必要がある。この様な情況に加えてエ
ッチング技術の限界からグリッド構体の板厚も薄くする
必要があり、益々金属細条の強度は低下し、この結果、
グリッド構体の振動を抑制することが困難であった。In recent years, in the above-mentioned color cathode ray tube, high definition has been advanced in order to deal with a terminal display, a high definition tube or the like. For this reason, the pitch of the grid structure (3) of the color selection electrode (9) also becomes finer, and the width of the metal strip (1) becomes narrower accordingly, so that the metal strip (1) is inevitably formed. The strength was reduced. In order to suppress the vibration of the grid structure (3), the tension of the metal strip (1) is increased, but the width of the metal strip (1) is narrow in the grid structure corresponding to high definition. Since the strength of the metal strip decreases, the tension of the metal strip cannot be increased as in the conventional case. Further, the damper wire (10) needs to be thin because it is not interlaced and the damper wire (10) is easily noticeable. In addition to such circumstances, it is necessary to reduce the plate thickness of the grid structure due to the limit of etching technology, and the strength of the metal strips will decrease more and more.
It was difficult to suppress the vibration of the grid structure.
本発明は、上述の点に鑑み、特に高精細度化に対応した
グリッド構体の振動を抑制することができるカラー陰極
線管の色選択電極を提供するものである。In view of the above points, the present invention provides a color selection electrode of a color cathode ray tube capable of suppressing the vibration of the grid structure, which corresponds to high definition.
本発明は、多数の金属細条が配列され、各金属細条間に
スリットが形成されてなるグリッド構体をフレーム上に
架張して成るカラー陰極線管の色選択電極において、互
いに共振周波数が異なり、スリットピッチの等しい複数
種のグリッド構体（13）及び（14）を重ねてフレーム
（４）上に架張するようになす。The present invention relates to a color selection electrode of a color cathode ray tube in which a large number of metal strips are arranged and a grid structure in which slits are formed between the metal strips is stretched on a frame, and resonance frequencies are different from each other. , A plurality of types of grid structures (13) and (14) having the same slit pitch are overlapped and stretched on the frame (4).
グリッド構体（13）及び（14）は互いに共振周波数が異
なるように例えば材料又は金属細条（11a）及び（11b）
の断面積を異ならして形成する。グリッド構体（13）及
び（14）のうち螢光面側のグリッド構体（13）が色選択
機能をもつ主グリッド構体となし、裏面のグリッド構体
（14）が振動抑制用の補助グリッド構体となすを可とす
る。このため、裏面のグリッド構体（14）のスリット幅
W2は電子ビームの走行を妨げないように螢光面側のグリ
ッド構体（13）のスリット幅W1より大に形成し得る。The grid structures (13) and (14) are made of, for example, material or metal strips (11a) and (11b) so that their resonance frequencies are different from each other.
Are formed with different cross-sectional areas. Of the grid structures (13) and (14), the grid structure (13) on the fluorescent surface side is not the main grid structure having a color selection function, and the back grid structure (14) is the auxiliary grid structure for vibration suppression. Is acceptable. Therefore, the slit width of the back grid structure (14)
W 2 can be formed larger than the slit width W 1 of the grid structure (13) on the side of the fluorescent surface so as not to hinder the traveling of the electron beam.
共振周波数の異なるグリッド構体（13）及び（14）が重
ねられた状態で架張されるため、グリッド構体（13）及
び（14）のいずれが共振しても、他方のグリッド構体と
の接触摩擦で、その振動が抑制される。Since the grid structures (13) and (14) having different resonance frequencies are stretched in a stacked state, even if either of the grid structures (13) and (14) resonates, contact friction with the other grid structure. Thus, the vibration is suppressed.
以下、第１図及び第２図を参照して本発明によるカラー
陰極線管の色選択電極の実施例を説明する。An embodiment of a color selection electrode of a color cathode ray tube according to the present invention will be described below with reference to FIGS. 1 and 2.
本例においては、多数の金属細条（11a）を所定ピッチ
で配列し、金属細条（11a）間に電子ビームが透過する
スリット（12a）を形成した第１のグリッド構体（13）
と、同様に多数の金属細条（11b）を所定ピッチで配列
し、各金属細条（11b）間に電子ビームが透過するスリ
ット（12b）を形成した第２のグリッド構体（14）を設
ける。第１及び第２のグリッド構体（13）及び（14）
は、共振周波数が互いに異なるように金属細条（11a）
及び（11b）の断面積を異ならすか、又はグリッド構体
の金属材料を異ならして形成する。第１及び第２のグリ
ッド構体（13）及び（14）は夫々スリットピッチを等し
くし、且つ第２とグリッド構体（14）のスリット幅W2が
第１のグリッド構体（13）のスリット幅W1より大となる
ように形成する。これら第１及び第２のグリッド構体
（13）及び（14）は金属薄板を選択エッチングして形成
される。In this example, a first grid structure (13) in which a large number of metal strips (11a) are arranged at a predetermined pitch and slits (12a) through which an electron beam is transmitted are formed between the metal strips (11a).
Similarly, a large number of metal strips (11b) are arranged at a predetermined pitch, and a second grid structure (14) having slits (12b) through which electron beams pass is provided between the metal strips (11b). . First and second grid structures (13) and (14)
Metal strips (11a) so that the resonance frequencies are different from each other
And (11b) are made to have different cross-sectional areas, or the metal materials of the grid structure are made to be different. The first and second grid structures (13) and (14) have the same slit pitch, and the slit width W 2 of the second and grid structures (14) is the slit width W of the first grid structure (13). Formed to be greater than 1 . The first and second grid structures (13) and (14) are formed by selectively etching a thin metal plate.
そして、第１とグリッド構体（13）が螢光面側となるよ
うに、第１及び第２のグリッド構体（13）及び（14）を
互いに接触するように重ね合せて、枠状のフレーム
（４）の相対向する支持部材（５）及び（６）間に架張
し、両グリッド構体（13）及び（14）と支持部材（５）
及び（６）を溶接する。フレーム（４）は相対向する１
対の支持部材（５）及び（６）と、両支持部材（５）及
び（６）間に差し渡った１対の弾性部材（７）及び
（８）とによって枠状に形成されている。Then, the first and second grid structures (13) and (14) are superposed so as to be in contact with each other so that the first and grid structures (13) are on the fluorescent surface side, and a frame-shaped frame ( The support members (5) and (6) facing each other in (4) are stretched to both grid structures (13) and (14) and the support member (5).
And (6) are welded. Frame (4) is opposite 1
It is formed in a frame shape by a pair of supporting members (5) and (6) and a pair of elastic members (7) and (8) which are provided between the supporting members (5) and (6).
第１及び第２のグリッド構体（13）及び（14）において
は、第１のグリッド構体（13）が色選択機能をもつ主グ
リッド構体となり、第１のグリッド構体（13）のスリッ
ト（12a）で電子ビームの螢光面上における到達位置が
決定され、また、第２のグリッド構体（14）が後述する
ように振動抑制のための補助グリッド構体となる。した
がって、第２のグリッド構体（14）のスリット幅W2は電
子ビームの走行を妨げないように大きく形成される。そ
して、第１のグリッド構体（13）の螢光面側の面に金属
細条（11a）に直交して適当な本数のダンパー線（10）
を架張して目的の色選択電極（15）を構成する。In the first and second grid structures (13) and (14), the first grid structure (13) becomes the main grid structure having a color selection function, and the slits (12a) of the first grid structure (13) Determines the arrival position of the electron beam on the fluorescent surface, and the second grid structure (14) serves as an auxiliary grid structure for vibration suppression as described later. Therefore, the slit width W 2 of the second grid structure (14) is formed large so as not to hinder the traveling of the electron beam. An appropriate number of damper wires (10) are provided on the surface of the first grid structure (13) on the fluorescent surface side, orthogonal to the metal strips (11a).
The target color selection electrode (15) is constructed by extending the.
斯る構成によれば、共振周波数の異なる第１及び第２の
グリッド構体（13）及び（14）が重ねられた状態で架張
されているので、グリッド構体（13）及び（14）のいず
れが共振しても、他方のグリッド構体との接触摩擦でそ
の振動が抑制される。即ち、特に色選択機能をもつ第１
のグリッド構体（13）の金属細条（11a）の上下の揺れ
に対しては、ダンパー線（10）によって上方向の揺れが
抑制され、第２のグリッド構体（14）によって下方向の
揺れが抑制される。According to such a configuration, since the first and second grid structures (13) and (14) having different resonance frequencies are stretched in a stacked state, any of the grid structures (13) and (14) Even if the resonance occurs, the vibration is suppressed by the contact friction with the other grid structure. That is, especially the first with a color selection function
The vertical movement of the metal strip (11a) of the grid structure (13) is suppressed by the damper wire (10), and the downward vibration is suppressed by the second grid structure (14). Suppressed.
従って、高精細度化に伴って極小ピッチで且つ薄く細い
金属細条からなるグリッド構体を構成した場合に、その
グリッド構体を架張する際の張力は従来と同程でも十分
に振動を抑制することができる。又、これによってダン
パー線（10）も細くでき、さらにダンパー線を省略、若
しくは本数を減らすことができ、ダンパー線の目立ちを
回避することができる。Therefore, when a grid structure made up of thin and thin metal strips with an extremely small pitch is constructed as the definition increases, the tension when the grid structure is stretched is sufficient to suppress vibration even if it is the same as the conventional one. be able to. Further, by this, the damper wire (10) can be made thin, and further, the damper wire can be omitted or the number thereof can be reduced, and the conspicuousness of the damper wire can be avoided.
尚、従来技術の色選択電極ではグリッド構体に直接電子
ビームが当たることにより熱膨張してミスランディング
が生じ易いが、本発明の色選択電極では第２のグリッド
構体（14）に電子ビームが当り、この第２のグリッド構
体（14）で熱を吸収し、第１のグリッド構体（13）に熱
的影響を与えることがないので、ミスランディングが生
じにくい。In the color selection electrode of the prior art, when the electron beam directly hits the grid structure, thermal expansion easily occurs and mislanding easily occurs. However, in the color selection electrode of the present invention, the electron beam hits the second grid structure (14). Since the second grid structure (14) absorbs heat and does not affect the first grid structure (13) thermally, mislanding is unlikely to occur.
本発明によれば、共振周波数の異なる複数種のグリッド
構体を重ねてフレーム上に架張して色選択電極を構成し
たことにより、いずれかのグリッド構体が共振しても、
他方のグリッド構体で振動が抑制されることになり、全
体としてグリッド構体の振動が抑制される。このため、
グリッド構体のピッチをより細かに且つ金属細条をより
薄く細くした場合にも、グリッド構体にかける張力は従
来と同程度とすることが可能である。またダンパー線も
細くすることができ、且つダンパー線の省略、若しくは
本数を減らすことができ、ダンパー線の目立ちを回避す
ることが可能となる。According to the present invention, since a plurality of types of grid structures having different resonance frequencies are overlapped and stretched on the frame to form the color selection electrode, even if any grid structure resonates,
Vibration is suppressed in the other grid structure, and vibration of the grid structure is suppressed as a whole. For this reason,
Even when the pitch of the grid structure is made finer and the metal strips are made thinner, the tension applied to the grid structure can be made approximately the same as the conventional one. Further, the damper wire can be made thin, and the damper wire can be omitted or the number of the damper wires can be reduced, so that the damper wire can be prevented from being conspicuous.
従って、本発明の色選択電極は高精細度管用に適用して
好適ならしめるものである。Therefore, the color selection electrode of the present invention is suitable for use in high definition tubes.
第１図は本発明によるカラー陰極線管の色選択電極の実
施例を示す斜視図、第２図は第１図のＢ−Ｂ線上の拡大
断面図、第３図は従来のカラー陰極線管の色選択電極の
例を示す斜視図、第４図は第３図のＡ−Ａ線上の拡大断
面図である。 （１），（11a），（11b）は金属細条、（２），（12
a），（12b）はスリット、（３），（13），（14）はグ
リッド構体、（４）はフレームである。1 is a perspective view showing an embodiment of a color selection electrode of a color cathode ray tube according to the present invention, FIG. 2 is an enlarged sectional view taken along the line BB of FIG. 1, and FIG. 3 is a color of a conventional color cathode ray tube. FIG. 4 is a perspective view showing an example of a selection electrode, and FIG. 4 is an enlarged sectional view taken along the line AA in FIG. (1), (11a), (11b) are metal strips, (2), (12
a) and (12b) are slits, (3), (13) and (14) are grid structures, and (4) is a frame.
Claims (1)
スリットが形成されてなるグリッド構体を架張して成る
カラー陰極線管の色選択電極において、 互いに共振周波数が異なり、スリットピッチの等しい複
数種の上記グリッド構体を重ねて架張して成るカラー陰
極線管の色選択電極。1. A color selection electrode of a color cathode ray tube comprising a grid structure in which a large number of metal strips are arranged and slits are formed between the metal strips. A color selection electrode of a color cathode ray tube, which is formed by stacking a plurality of the above-mentioned grid structures of the same type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61030235A JPH07109755B2 (en) | 1986-02-14 | 1986-02-14 | Color-selective electrodes for color cathode ray tubes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61030235A JPH07109755B2 (en) | 1986-02-14 | 1986-02-14 | Color-selective electrodes for color cathode ray tubes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62188132A JPS62188132A (en) | 1987-08-17 |
| JPH07109755B2 true JPH07109755B2 (en) | 1995-11-22 |
Family
ID=12298053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61030235A Expired - Lifetime JPH07109755B2 (en) | 1986-02-14 | 1986-02-14 | Color-selective electrodes for color cathode ray tubes |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07109755B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1989007329A1 (en) * | 1988-02-02 | 1989-08-10 | Dainippon Screen Mfg. Co., Ltd. | Slot-type shadow mask |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58201232A (en) * | 1982-05-20 | 1983-11-24 | Toshiba Corp | Color cathode-ray tube |
-
1986
- 1986-02-14 JP JP61030235A patent/JPH07109755B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62188132A (en) | 1987-08-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |