Color display tube having an internal magnetic shield

Details Color display tube having an internal magnetic shield Color display tube having an internal magnetic shield

1992-04-24

1994-11-08

Yusko, Donald J.

Electric lamp and discharge devices

Cathode ray tube

Shadow mask, support or shield

313443, 313479, H01J 2906

Patent

active

053630106

ABSTRACT:
A color display tube is described of the 3-in-line type having a display screen with a stripe-shaped phosphor pattern. The display tube has an internal magnetic shield with a scanning aperture at its gun-sided end for electron beams produced by the electron gun and scanning the display screen. This scanning aperture extends into the short side walls of the shield in a pair of diametrically extreme points at each side to form an oversized scanning aperture with two, and the aperture has a ratio from 1.5 to 1.75 standardized in accordance with the aspect ratio between the long central axis and the short central axis.

REFERENCES:
patent: 4229675 (1980-10-01), Matsuki et al.
patent: 4580076 (1986-04-01), Shimoma et al.
patent: 4622490 (1986-11-01), Benway
patent: 4758193 (1988-07-01), Brown
patent: 4845402 (1989-07-01), Smith
patent: 4882516 (1989-09-01), Hirata et al.
patent: 5081392 (1992-01-01), Alig
patent: 5097174 (1992-03-01), D'Amato

Affiliated with

Also associated with

Rating

Color display tube having an internal magnetic shield does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Color display tube having an internal magnetic shield, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Color display tube having an internal magnetic shield will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1785070