JPH0371544U - - Google Patents
Info
- Publication number
- JPH0371544U JPH0371544U JP13265789U JP13265789U JPH0371544U JP H0371544 U JPH0371544 U JP H0371544U JP 13265789 U JP13265789 U JP 13265789U JP 13265789 U JP13265789 U JP 13265789U JP H0371544 U JPH0371544 U JP H0371544U
- Authority
- JP
- Japan
- Prior art keywords
- mask
- picture tube
- mask frame
- tube axis
- phosphor screen
- 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.)
- Pending
Links
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 5
- 238000010894 electron beam technology Methods 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 4
Landscapes
- Electrodes For Cathode-Ray Tubes (AREA)
Description
第１図乃至第５図はこの考案の実施例の説明図
で、第１図はその一実施例であるカラー受像管の
構成を示す図、第２図はそのマスクフレームおよ
び磁気シールド体の構造を示す図、第３図はオー
バースキヤンされる電子ビームに対するマスクフ
レームの作用を説明するための図、第４図は蛍光
体スクリーン周辺部に向かう電子ビームに対する
磁気シールド体による垂直方向の外部磁界の漏れ
磁界の作用を説明するための図、第５図は他の実
施例の要部構成を示す図、第６図は従来のカラー
受像管の構成を示す図、第７図はその要部構成を
示す図、第８図ａおよびｂはそれぞれ水平方向磁
界および垂直方向磁界に対する磁気シールド体の
作用を説明するための図、第９図は蛍光体スクリ
ーン周辺部に向かう電子ビームに対する従来のマ
スクフレームおよび磁気シールド体による垂直方
向の外部磁界の漏れ磁界の作用を説明するための
図である。
１……パネル、２……フアンネル、３……蛍光
体スクリーン、３０……シヤドウマスク、３１…
…マスク本体、３２……マスクフレーム、３３…
…磁気シールド体、３５……張出し部。
Figures 1 to 5 are explanatory diagrams of an embodiment of this invention. Figure 1 is a diagram showing the configuration of a color picture tube that is an embodiment of the invention, and Figure 2 is a diagram showing the structure of its mask frame and magnetic shielding body. 3 is a diagram for explaining the effect of the mask frame on the overscanned electron beam, and FIG. 4 is a diagram for explaining the effect of the vertical external magnetic field by the magnetic shield on the electron beam directed toward the periphery of the phosphor screen. A diagram for explaining the action of a leakage magnetic field, FIG. 5 is a diagram showing the main part structure of another embodiment, FIG. 6 is a diagram showing the structure of a conventional color picture tube, and FIG. 7 is the main part structure. Figures 8a and 8b are diagrams for explaining the effects of the magnetic shield on horizontal and vertical magnetic fields, respectively. Figure 9 is a conventional mask frame for electron beams directed toward the periphery of a phosphor screen. FIG. 3 is a diagram for explaining the effect of a leakage magnetic field of an external magnetic field in a vertical direction caused by a magnetic shield. 1... Panel, 2... Funnel, 3... Phosphor screen, 30... Shadow mask, 31...
...Mask body, 32...Mask frame, 33...
...Magnetic shield body, 35...Protrusion part.
Claims (1)
、上記パネル内面に形成された蛍光体スクリーン
に対向して多数の電子ビーム通過孔の形成された
マスク本体とこのマスク本体の周辺部を支持する
マスクフレームからなるシヤドウマスクが配置さ
れ、上記マスクフレームに電子銃から放出される
電子ビームに対する外部磁界の影響を防止する磁
気シールド体の一端部が取付けられてなるカラー
受像管において、 上記マスクフレームは蛍光体スクリーン側端部
に管軸に向かう張出し部をもち反対側端部に管軸
に向かう張出し部をもたない断面ほぼＬ字形に形
成され、上記磁気シールド体は上記マスクフレー
ムに取付けられる一端部に管軸に向かう張出し部
をもたない形状に形成されていることを特徴とす
るカラー受像管。[Claims for Utility Model Registration] A mask body that has an envelope consisting of a panel and a funnel, and in which a large number of electron beam passage holes are formed facing a phosphor screen formed on the inner surface of the panel, and this mask body. A color picture tube in which a shadow mask consisting of a mask frame supporting the peripheral portion of the picture tube is disposed, and one end of a magnetic shielding member is attached to the mask frame to prevent the influence of an external magnetic field on the electron beam emitted from the electron gun. , the mask frame has an approximately L-shaped cross section with an overhang toward the tube axis at the end on the phosphor screen side and no overhang toward the tube axis at the opposite end; A color picture tube characterized by being formed in a shape that does not have an overhanging portion toward the tube axis at one end that is attached to a frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13265789U JPH0371544U (en) | 1989-11-15 | 1989-11-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13265789U JPH0371544U (en) | 1989-11-15 | 1989-11-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0371544U true JPH0371544U (en) | 1991-07-19 |
Family
ID=31680105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13265789U Pending JPH0371544U (en) | 1989-11-15 | 1989-11-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0371544U (en) |
-
1989
- 1989-11-15 JP JP13265789U patent/JPH0371544U/ja active Pending
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