Display device and cathode ray tube

Details Display device and cathode ray tube Display device and cathode ray tube

1995-05-03

1997-05-27

Blum, Theodore M.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

313414, 313449, H01J 2958

Patent

active

056335679

ABSTRACT:
A cathode ray tube in which the pre-focusing field, the main lens field, a quadripolar field in the pre-focusing portion of the electron gun and a quadripolar field in the main lens are dynamically varied by means of only one dynamic voltage.

REFERENCES:
patent: 5055749 (1991-10-01), Chen et al.
patent: 5061881 (1991-10-01), Suzuki et al.
patent: 5241237 (1993-08-01), Misono et al.
patent: 5404071 (1995-04-01), Son

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