Display device comprising a display tube having an external shie

Details Display device comprising a display tube having an external shie Display device comprising a display tube having an external shie

1997-04-09

1999-06-15

Patel, Vip

Electric lamp and discharge devices

Cathode ray tube

Shadow mask, support or shield

313407, 313313, H01J 2980

Patent

active

059125292

ABSTRACT:
A display device comprising a display tube having a display screen with a pattern of phosphor elements. To reduce mislandings of electron beams, the display tube is accommodated within an external magnetic shield which is formed by one or more individual frames composed of bars of a magnetizable material and one or more excitable coils. The coils may be arranged, for example, alongside the frames.

REFERENCES:
patent: 4845402 (1989-07-01), Smith
patent: 5382868 (1995-01-01), Fukaishi

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