JPH05258677A - Color discriminating electrode for cathode-ray tube - Google Patents
Color discriminating electrode for cathode-ray tubeInfo
- Publication number
- JPH05258677A JPH05258677A JP4053660A JP5366092A JPH05258677A JP H05258677 A JPH05258677 A JP H05258677A JP 4053660 A JP4053660 A JP 4053660A JP 5366092 A JP5366092 A JP 5366092A JP H05258677 A JPH05258677 A JP H05258677A
- Authority
- JP
- Japan
- Prior art keywords
- ray tube
- color selection
- selection electrode
- metal frame
- support members
- 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
Landscapes
- Electrodes For Cathode-Ray Tubes (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、カラー陰極線管の色選
別電極に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a color selection electrode for a color cathode ray tube.
【０００２】[0002]
【従来の技術】カラー陰極線管の色選別電極として、図
８に示すように、いわゆるアパーチャグリルと呼ばれる
色選別電極６が用いられている。このアパーチャグリル
は、一対の相対向する支持部材１及び２とその両端間を
支持するコ字状の弾性部材３及び４からなる金属フレー
ム５の該支持部材１及び２間上に、細い帯状の多数のグ
リッド素体７が多数のスリット（ビーム透過孔）８を形
成するように所定ピッチをもって配列されてなるグリッ
ド構体９を架張して構成される。2. Description of the Related Art As a color selection electrode of a color cathode ray tube, a color selection electrode 6 called a so-called aperture grill is used as shown in FIG. This aperture grill has a thin strip-like shape between a pair of supporting members 1 and 2 facing each other and a U-shaped elastic member 3 and 4 supporting between the both ends of the metal frame 5 between the supporting members 1 and 2. A large number of grid elements 7 are arranged by stretching a grid structure 9 arranged at a predetermined pitch so as to form a large number of slits (beam transmission holes) 8.
【０００３】グリッド構体９が架張される金属フレーム
５では、その一対の支持部材１及び２が図９に示すよう
に断面Ｌ字型をなしている。In the metal frame 5 on which the grid structure 9 is stretched, the pair of supporting members 1 and 2 have an L-shaped cross section as shown in FIG.
【０００４】このような色選別電極６は、図１０に示す
ように、例えば３点支持の場合にはその支持部材１及び
２と一方の弾性部材４に取付けた支持スプリング１１を
介して陰極線管１４のパネル１３内面の支持ピン１２に
係合して機械的に支持される。１５はパネル１３の内面
に形成された蛍光面である。As shown in FIG. 10, such a color selection electrode 6 is, for example, in the case of three-point support, the support members 1 and 2 and a support spring 11 attached to one elastic member 4 to interpose a cathode ray tube. 14 is engaged mechanically with the support pin 12 on the inner surface of the panel 13. Reference numeral 15 denotes a fluorescent screen formed on the inner surface of the panel 13.
【０００５】[0005]
【発明が解決しようとする課題】色選別電極６の製造工
程においては、グリッド構体９すなわち各グリッド素体
７に所定の張力を与えるために、金属フレーム５の断面
Ｌ字型をなす一対の支持部材１，２の底面部の側部を数
個所加圧した状態でグリッド構体９を支持部材１及び２
間上に溶接している。この方法を採ると、特に色選別電
極６の中央部分におけるグリッド素体７の張力が低くな
るため一定周波数の音との共振が著しく発生する恐れが
ある。完成品のカラー陰極線管では、音等の外力でグリ
ッド素体の共振が発生すると、これが原因でグリッド素
体７間のスリット８を通過する電子ビームの軌道が乱れ
るため、画面の揺れが発生する。これは避けなければな
らない。In the process of manufacturing the color selection electrode 6, a pair of supports having an L-shaped cross section of the metal frame 5 are provided in order to apply a predetermined tension to the grid structure 9 or each grid element 7. The grid structure 9 is supported by the supporting members 1 and 2 in a state where the side portions of the bottom surfaces of the members 1 and 2 are pressed at several places.
Welded on the top. If this method is adopted, the tension of the grid element body 7 particularly in the central portion of the color selection electrode 6 becomes low, so that resonance with a sound of a constant frequency may occur remarkably. In the completed color cathode ray tube, when resonance of the grid element body occurs due to external force such as sound, the trajectory of the electron beam passing through the slits 8 between the grid element bodies 7 is disturbed due to the resonance, and the screen shakes. .. This should be avoided.
【０００６】本発明は、上述の点に鑑み、金属フレーム
の剛性を改善し、グリッド構体に高い張力を与えて音、
振動による共振を低減させ、画質の向上をはかるように
した陰極線管の色選別電極を提供するものである。In view of the above points, the present invention improves the rigidity of the metal frame and imparts a high tension to the grid structure to produce a sound,
It is intended to provide a color selection electrode for a cathode ray tube in which resonance caused by vibration is reduced and image quality is improved.
【０００７】[0007]
【課題を解決するための手段】本発明は、一対の相対向
する支持部材２１，２２と両支持部材２１及び２２間に
差し渡って之を支持する弾性部材２３，２４とからなる
金属フレーム２５の該支持部材２１及び２２間に多数の
帯状のグリッド素体を架張してなる陰極線管の色選別電
極において、支持部材２１，２２の一部または全部を中
空三角形の断面形状となるように形成して構成する。According to the present invention, a metal frame 25 comprising a pair of opposing support members 21 and 22 and elastic members 23 and 24 extending between and supporting the support members 21 and 22. In a color selection electrode of a cathode ray tube in which a large number of strip-shaped grid elements are stretched between the support members 21 and 22, some or all of the support members 21 and 22 have a hollow triangular sectional shape. Form and configure.
【０００８】[0008]
【作用】本発明においては、金属フレーム２５の支持部
材２１，２２の一部または全部を中空三角形状にするこ
とによって、金属フレーム２５の剛性が向上する。これ
によって、支持部材２１，２２上に溶接するグリッド素
体７に高い張力を与えることができ、音、振動による共
振が減少し画質の向上がはかられる。In the present invention, the rigidity of the metal frame 25 is improved by forming a part or all of the supporting members 21, 22 of the metal frame 25 into a hollow triangular shape. As a result, a high tension can be applied to the grid element body 7 to be welded on the support members 21 and 22, resonance due to sound and vibration is reduced, and image quality is improved.
【０００９】[0009]
【実施例】以下、図面を参照して本発明による陰極線管
の色選別電極の実施例を説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a color selection electrode of a cathode ray tube according to the present invention will be described below with reference to the drawings.
【００１０】本例においては、図１に示すように断面形
状が中空三角形となる一対の相対向する支持部材２１及
び２２と、この部材２１，２２間に差し渡るように、本
例では両端間に差し渡って之を支持するコ字状の弾性部
材２３及び２４からなる金属フレーム２５を設け、この
支持部材２１及び２２間上に、細い帯状の多数のグリッ
ド素体７が多数のスリット（ビーム透過孔）８を形成す
るように所定ピッチをもって配列してなるグリッド構体
９を架張して色選別電極２６を構成する。In this embodiment, as shown in FIG. 1, a pair of opposing support members 21 and 22 having a hollow triangular cross section and the members 21 and 22 are arranged so as to extend between the two members. A metal frame 25 composed of U-shaped elastic members 23 and 24 for supporting the wire is provided between the support members 21 and 22. A color selection electrode 26 is formed by extending a grid structure 9 which is arranged with a predetermined pitch so as to form a transmission hole 8.
【００１１】金属フレーム２５を構成する支持部材２１
及び２２としては、例えば図２に示すように支持部材２
１及び２２の全体を中空三角形状のパイプ状体で形成す
ることができる。この場合、図４の断面で示すように、
例えば従来の断面Ｌ字型の支持部材１（又は２）に三角
形となるように金属補強板２７を溶接して中空三角形状
のパイプに形成してもよく、または始めから中空三角形
状のパイプ材を引き抜き加工により形成するようにして
もよい。または、支持部材２１及び２２として図３に示
すように中央部を除いて両端部側にのみ断面形状が中空
三角形となるように形成することができる。このように
グリッド構体９を直接溶接する支持部材２１，２２を断
面形状が中空三角形となるように形成することにより、
金属フレーム２５の剛性を向上させることができる。し
たがって、グリッド構体９に高い張力を与えて支持部材
２１，２２上に架張することができるので、グリッド構
体９即ちグリッド素体７の共振周波数を高めることがで
き、従って音等の外力との共振を低減することができ、
カラー陰極線管の画質を向上することができる。Supporting member 21 constituting the metal frame 25
2 and 22, for example, as shown in FIG.
The whole of 1 and 22 can be formed by a hollow triangular pipe-shaped body. In this case, as shown in the cross section of FIG.
For example, a metal reinforcing plate 27 may be welded to a conventional supporting member 1 (or 2) having an L-shaped cross section so as to form a triangle to form a hollow triangular pipe, or a hollow triangular pipe material may be formed from the beginning. May be formed by drawing. Alternatively, as shown in FIG. 3, the supporting members 21 and 22 can be formed so that the cross-sectional shape is a hollow triangle only on both end sides except the central portion. By thus forming the support members 21 and 22 for directly welding the grid structure 9 so that the cross-sectional shape is a hollow triangle,
The rigidity of the metal frame 25 can be improved. Therefore, since the grid structure 9 can be stretched on the support members 21 and 22 by applying a high tension, the resonance frequency of the grid structure 9, that is, the grid element body 7 can be increased, and therefore, the external force such as sound or the like can be increased. Resonance can be reduced,
The image quality of the color cathode ray tube can be improved.
【００１２】〔実施例１〕従来の断面Ｌ字型の支持部材
１，２に図４に示すように断面中空三角形となるように
補強板２７を支持部材の長手方向の全体に亘って溶接し
て図２の金属フレーム２５を形成する。補強板２７の板
厚ｄ1 は、支持部材１，２の厚さｄ2 と同一とし溶接に
よって取付ける。このような金属フレーム２５の支持部
材２１，２２上にグリッド構体９を架張して色選別電極
２６を構成する。従来の断面Ｌ字型の支持部材１，２を
有する図９に示す金属フレーム５にグリッド構体９を溶
接した色選別電極６と、実施例１の色選別電極２６とに
おけるグリッド構体９の共振周波数の比較結果を図５に
示す。曲線Ｉは従来の色選別電極、曲線IIは実施例１の
色選別電極である。Example 1 A reinforcing plate 27 was welded to conventional supporting members 1 and 2 having an L-shaped cross section so as to form a hollow triangular section as shown in FIG. 4 over the entire length of the supporting member. To form the metal frame 25 of FIG. The plate thickness d 1 of the reinforcing plate 27 is the same as the thickness d 2 of the support members 1 and 2, and is attached by welding. The grid structure 9 is stretched on the support members 21 and 22 of the metal frame 25 to form the color selection electrode 26. The resonance frequency of the grid assembly 9 in the color selection electrode 6 in which the grid assembly 9 is welded to the metal frame 5 shown in FIG. 9 having the conventional L-shaped supporting members 1 and 2 and the color selection electrode 26 of the first embodiment. The results of the comparison are shown in FIG. Curve I is the conventional color selection electrode, and curve II is the color selection electrode of Example 1.
【００１３】この特性図から実施例１の色選別電極２６
は、従来に比して共振周波数が高くなり著しい改善が認
められる。From this characteristic diagram, the color selection electrode 26 of the first embodiment is shown.
Has a higher resonance frequency than the conventional one, and a remarkable improvement is recognized.
【００１４】〔実施例２〕実施例１において、その金属
フレーム２５の支持部材２１，２２を構成する補強板２
７の板厚ｄ1 を断面Ｌ字型の支持部材１，２の厚さｄ2
の１／３とした以外は実施例１と同様にして、色選別電
極２６を構成する。従来の金属フレーム５を用いた色選
別電極６と、図２の金属フレーム２５を用いた実施例２
の色選別電極２６とにおけるグリッド構体９の共振周波
数の比較結果を図６に示す。曲線III は、実施例２の色
選別電極である。[Embodiment 2] In Embodiment 1, the reinforcing plate 2 constituting the support members 21 and 22 of the metal frame 25 thereof.
The thickness of the plate thickness d 1 of 7 L-shaped section of the support member 1, 2 d 2
The color selection electrode 26 is formed in the same manner as in Example 1 except that the color selection electrode 26 is set to 1/3. Example 2 using the conventional color selection electrode 6 using the metal frame 5 and the metal frame 25 of FIG.
FIG. 6 shows a comparison result of resonance frequencies of the grid structure 9 and the color selection electrode 26 of FIG. Curve III is the color selection electrode of Example 2.
【００１５】この特性図から従来に比して共振周波数が
高くなり、著しい改善が認められる。From this characteristic diagram, the resonance frequency becomes higher than in the conventional case, and a remarkable improvement is recognized.
【００１６】〔実施例３〕断面Ｌ字型の支持フレーム
１，２の夫々の両端部側に部分的に補強板２７を溶接し
て（図４参照）図３に示すような金属フレーム２５を形
成する。補強板２７の厚さｄ1 は支持部材１，２の厚さ
ｄ2 の１／３とする。この金属フレーム２５の支持部材
２１，２２間上にグリッド構体９を溶接して色選別電極
２６を構成する。従来の金属フレーム５を用いた色選別
電極６と、図３の金属フレーム２５を用いた実施例３の
色選別電極２６とにおけるグリッド構体９の共振周波数
の比較結果を図７に示す。曲線IVは実施例３である。[Embodiment 3] Reinforcing plates 27 are partially welded to both ends of each of the support frames 1 and 2 having an L-shaped cross section (see FIG. 4) to form a metal frame 25 as shown in FIG. Form. The thickness d 1 of the reinforcing plate 27 is 1/3 of the thickness d 2 of the support members 1 and 2 . The grid structure 9 is welded between the support members 21 and 22 of the metal frame 25 to form the color selection electrode 26. FIG. 7 shows a comparison result of resonance frequencies of the grid structure 9 between the conventional color selection electrode 6 using the metal frame 5 and the color selection electrode 26 of the third embodiment using the metal frame 25 of FIG. Curve IV is Example 3.
【００１７】この特性図から明らかなように実施例３の
色選別電極２６においては従来に比較して共振周波数が
高くなり改善が認められる。As is clear from this characteristic diagram, in the color selection electrode 26 of the third embodiment, the resonance frequency is higher than in the conventional case, and the improvement is recognized.
【００１８】[0018]
【発明の効果】本発明によれば、金属フレームの両支持
部材を断面形状が中空三角形となるように形成すること
によって、金属フレームの剛性が向上し、グリッド構体
を架張する際に金属フレームを加圧するときの支持部材
の捩れ、倒れが減少する。このため、グリッド構体の張
力が全体的に高くなり特に中央部での張力が改善され、
したがって通常の音域での音との共振を低減することが
可能になる。したがって、外部からの振動、音によって
画面が乱れることがなく画質を向上させることができ
る。According to the present invention, the rigidity of the metal frame is improved by forming both supporting members of the metal frame so that the cross-sectional shape is a hollow triangle, and the metal frame is stretched when the grid structure is stretched. Twist and fall of the support member when pressurizing is reduced. Therefore, the tension of the grid structure is generally high, and the tension especially in the central portion is improved,
Therefore, it becomes possible to reduce the resonance with the sound in the normal range. Therefore, the image quality can be improved without the screen being disturbed by external vibration or sound.
【図１】本発明による陰極線管の色選別電極の実施例を
示す斜視図である。FIG. 1 is a perspective view showing an embodiment of a color selection electrode of a cathode ray tube according to the present invention.
【図２】本発明に係る色選別電極フレームの一例を示す
斜視図である。FIG. 2 is a perspective view showing an example of a color selection electrode frame according to the present invention.
【図３】本発明に係る色選別電極のフレームの他の例を
示す斜視図である。FIG. 3 is a perspective view showing another example of the frame of the color selection electrode according to the present invention.
【図４】本発明に係るフレームの支持部材の断面図であ
る。FIG. 4 is a sectional view of a supporting member of the frame according to the present invention.
【図５】実施例１の共振周波数分布図である。FIG. 5 is a resonance frequency distribution diagram of the first embodiment.
【図６】実施例２の共振周波数分布図である。FIG. 6 is a resonance frequency distribution diagram of the second embodiment.
【図７】実施例３の共振周波数分布図である。FIG. 7 is a resonance frequency distribution diagram of the third embodiment.
【図８】従来の陰極線管の色選別電極の斜視図である。FIG. 8 is a perspective view of a color selection electrode of a conventional cathode ray tube.
【図９】従来の色選別電極のフレームの斜視図である。FIG. 9 is a perspective view of a frame of a conventional color selection electrode.
【図１０】陰極線管の要部の断面図である。FIG. 10 is a cross-sectional view of a main part of a cathode ray tube.
１，２，２１，２２ 支持部材 ３，４，２３，２４ 弾性部材 ５，２５ フレーム ６，２６ 色選別電極 ７ グリッド素体 ８ スリット 1, 2, 21, 22 Support member 3, 4, 23, 24 Elastic member 5, 25 Frame 6, 26 Color selection electrode 7 Grid element body 8 Slit
Claims (1)
間に差し渡って之を支持する弾性部材からなる金属フレ
ームの上記支持部材間に多数の帯状のグリッド素体が張
架されてなる陰極線管の色選別電極において、上記支持
部材の一部または全部が中空三角形の断面形状を有して
成る陰極線管の色選別電極。1. A large number of strip-shaped grid elements are stretched between the supporting members of a metal frame made of a pair of supporting members facing each other and an elastic member extending across and supporting the supporting members. A color selection electrode for a cathode ray tube, wherein a part or all of the supporting member has a hollow triangular cross-sectional shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05366092A JP3218667B2 (en) | 1992-03-12 | 1992-03-12 | Cathode tube and its color selection electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05366092A JP3218667B2 (en) | 1992-03-12 | 1992-03-12 | Cathode tube and its color selection electrode |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05258677A true JPH05258677A (en) | 1993-10-08 |
| JP3218667B2 JP3218667B2 (en) | 2001-10-15 |
Family
ID=12949013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP05366092A Expired - Fee Related JP3218667B2 (en) | 1992-03-12 | 1992-03-12 | Cathode tube and its color selection electrode |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3218667B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100339376B1 (en) * | 1999-08-13 | 2002-06-03 | 구자홍 | support frame for color cathode ray tube |
-
1992
- 1992-03-12 JP JP05366092A patent/JP3218667B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100339376B1 (en) * | 1999-08-13 | 2002-06-03 | 구자홍 | support frame for color cathode ray tube |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3218667B2 (en) | 2001-10-15 |
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