Picture display device

Details Picture display device Picture display device

1985-12-27

1991-01-29

Wieder, Kenneth

Electric lamp and discharge devices

Cathode ray tube

Envelope

313450, 313440, H01J 2988

Patent

active

049889150

ABSTRACT:
A color display tube is provided with a high resistance layer having a resistance between 10.sup.6 and 10.sup.10 ohms per square on the external portion of the tube envelope underneath the deflection coil system. The high resistance layer prevents arcing between the coil system and the envelope without adversely affecting the deflection field.

REFERENCES:
patent: 2508001 (1950-05-01), Swedlund
patent: 2602902 (1952-07-01), Haugen
patent: 3355617 (1967-11-01), Schwartz et al.
patent: 3746904 (1973-07-01), Torre
patent: 3979633 (1976-09-01), Davis et al.
patent: 3996491 (1976-12-01), Larson et al.
patent: 4018717 (1977-04-01), Francel et al.
patent: 4217521 (1980-08-01), Dietch et al.
Standard Handbook for Electrical Engineers, edited by Knowlton, p. 341 (1957).

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