JPS6074457U

JPS6074457U - cathode ray tube

Info

Publication number: JPS6074457U
Application number: JP16777883U
Authority: JP
Inventors: 竹延　眞哉
Original assignee: 三菱電機株式会社
Priority date: 1983-10-27
Filing date: 1983-10-27
Publication date: 1985-05-25

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 the drawing]

第１図はカラー陰極線管の構成を示す一部断面図、第２
図は従来のカラー陰極線管のネック部の構成を示す断面
図、第３図はこの考案の一実施例を示すネック部の断面
図、第４図はシールドカップおよびコンタクタの構成例
を示す斜視図である。１・・・パネル部、２・・・ファンネル部、３・・・ネ
ック部、４・・・蛍光面、６・・・電子銃、１３・・・
シールドカップ、１４・・・コンタクタ、１５・・・内
塗ダック、１６・・・接触部。なお、図中同一符号は同
一または相当部分を示す。第１図第２図Figure 1 is a partial cross-sectional view showing the configuration of a color cathode ray tube;
The figure is a sectional view showing the structure of the neck of a conventional color cathode ray tube, FIG. 3 is a sectional view of the neck showing an embodiment of this invention, and FIG. 4 is a perspective view showing an example of the structure of the shield cup and contactor. It is. DESCRIPTION OF SYMBOLS 1... Panel part, 2... Funnel part, 3... Neck part, 4... Fluorescent screen, 6... Electron gun, 13...
Shield cup, 14... Contactor, 15... Inner coating duck, 16... Contact portion. Note that the same reference numerals in the figures indicate the same or corresponding parts. Figure 1 Figure 2

Claims

[Scope of utility model registration request]

(1) A panel portion with a fluorescent screen formed on its inner surface, a neck portion containing an electron gun that emits an electron beam, and a funnel portion that connects the panel portion and the neck portion to form an envelope. A cylindrical shield comprising: a cylindrical shield having an inner coating dac applied from the funnel part to the neck part, and a contactor making electrical contact with the inner coating tack attached to the top of an electron gun built in the neck part; A cathode ray tube having a cup, characterized in that the contact portion of the contactor is located between the inner coating tack and the outer peripheral surface of the shield cup.

(2) The shield cup has a slit section that is cut from the phosphor screen side toward the electron gun side and has a width larger than the width of the contactor, and the contactor is led out from this slit section toward the electron gun side. A cathode ray tube according to claim 1 of the utility model registration claim.

(3) The cathode ray tube according to claim 1, wherein the length of the shield cup is at least twice the gap between the outer peripheral surface of the shield cup and the inner wall of the neck portion.

(4) The cathode ray tube according to claim 1, wherein the contact portion of the contactor is provided at the end of the straight portion of the inner surface of the neck portion and near a point where the portion changes to a curved portion.

(5) The cathode ray tube according to claim 1, wherein the focus electrode constituting a part of the main lens of the electron gun is formed of a magnetic material.