JPS6094760U

JPS6094760U - color picture tube

Info

Publication number: JPS6094760U
Application number: JP18687983U
Authority: JP
Inventors: 木場　弘幸; 治男加藤
Original assignee: 株式会社東芝
Priority date: 1983-12-05
Filing date: 1983-12-05
Publication date: 1985-06-28

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は従来のカラー受像管を垂直軸に沿って切断して
見た断面図、第２図は第１図の内部磁気遮蔽体の斜視図
、第３図乃至第７図は第２図の内部磁気遮蔽体によるラ
ンディングの異方性の説明図であり、第３図１ま偏向角
の小さいカラー受像管′における電子ビームの左ずれ現
象を示す説明図、第４図は偏向角の夫きいカラー受像管
稈おける電子ビームの左右ずれ現象を示す説明図、第５
図は螢光体スクリーンの各部における磁束密度分力と電
流密度分力を示す説明図、第６図ぽ開口部付近の磁界成
分を委す説明図、第７図はセンタ一部を　゛雰補正した
時の電子ビームの左右ずれ現象を示す説明図、第８図乃
至第１１図は本考案のカラー受像管の一実施例を示す図
であり、第８図は垂直軸に沿って切断して見た断面図、
第９図は内部磁気遮蔽体の斜視図、第１０図は内部磁気
遮蔽体の電子銃側から見た断面図、第１１図は内部磁気
遮蔽体を垂直軸に沿って切断して見た断面図、第１２図
は本考案のカラー受像管の他の実施例に使用する内部磁
気遮蔽体を電子銃側から見た平面図である。１・・・・・・パネル、２・・・・・・螢光体スクリー
ン、４・・・・・・シャドウマスク、６，１６，２６・
・・・・・内部磁気遮蔽体、？、１７，２７・・・↑・
・開口部、１８．２８・・・・・・コーナ一部、１９．
．１９□、２９．．２９２・・・・・・垂直軸上の端部
。第９図１６　　　↓ 　　− ｔ８′ｚｏｌ　’７−じｔ’ｌｔ、ｔＧ　　、ｔ！３＼Ｉ　　　　Ｉ＼ −７み　　　　　ｌ’ｈ　−−′Fig. 1 is a cross-sectional view of a conventional color picture tube taken along the vertical axis, Fig. 2 is a perspective view of the internal magnetic shield of Fig. 1, and Figs. 3 to 7 are Fig. 2. 3 is an explanatory diagram of the anisotropy of landing due to the internal magnetic shield of Explanatory diagram showing the left-right deviation phenomenon of the electron beam in the culm of a high-color picture tube, No. 5
The figure is an explanatory diagram showing the magnetic flux density component force and current density component force in each part of the phosphor screen, Figure 6 is an explanatory diagram showing the magnetic field component near the opening, and Figure 7 is an explanatory diagram showing the magnetic field component near the opening. FIGS. 8 to 11 are diagrams showing an embodiment of the color picture tube of the present invention, and FIG. Cross-sectional view,
Figure 9 is a perspective view of the internal magnetic shield, Figure 10 is a sectional view of the internal magnetic shield seen from the electron gun side, and Figure 11 is a cross-sectional view of the internal magnetic shield taken along the vertical axis. 12 are plan views of an internal magnetic shield used in another embodiment of the color picture tube of the present invention, viewed from the electron gun side. 1... Panel, 2... Fluorescent screen, 4... Shadow mask, 6, 16, 26.
...Internal magnetic shield? , 17, 27...↑・
・Opening, 18.28... Corner part, 19.
．． 19□, 29. ．． 292... End on the vertical axis. Figure 9 16 ↓ - t8'zol '7-jit'lt, tG, t! 3\I I\ -7mi l'h --'

Claims

[Scope of utility model registration request]

A panel having a phosphor screen adhered to its inner surface, in which striped phosphor layers along the vertical axis are regularly arranged in parallel in the horizontal axis direction, and a shadow provided opposite to the phosphor screen. a mask; an electron gun attached to the neck of a funnel sealed to the panel; and a truncated square pyramid extending from the periphery of the shadow mask substantially along the inner wall of the funnel in the direction of the electron gun. In a color picture tube comprising at least an internal magnetic shield integrally formed with a shape, the width along the vertical axis of the electron gun side opening of the internal magnetic shield may be part of a corner or the vertical axis. A color picture tube characterized in that the color picture tube gradually increases as the color increases toward .