Color picture tube with shadow mask having alternately displaced

Details Color picture tube with shadow mask having alternately displaced Color picture tube with shadow mask having alternately displaced

1986-09-18

1988-08-23

Moore, David K.

Electric lamp and discharge devices

Cathode ray tube

Shadow mask, support or shield

H01J 2907

Patent

active

047663413

ABSTRACT:
A color picture tube of a shadow mask system comprises a shadow mask formed with apertures arrayed in such a pattern that lines connecting adjacent ones of the apertures arrayed at least in one of a major axis direction and a minor axis direction on a display surface are obtained in the form of polygonal lines.

REFERENCES:
patent: 3872345 (1975-03-01), Yamazaki et al.
patent: 3900757 (1975-08-01), Kaplan

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