Narrow neck CRT with slot type shadow mask

Details Narrow neck CRT with slot type shadow mask Narrow neck CRT with slot type shadow mask

1998-03-31

2000-08-22

Day, Michael H.

Electric lamp and discharge devices

Cathode ray tube

Shadow mask, support or shield

313477HC, H01J 2907

Patent

active

061077291

ABSTRACT:
In a color cathode ray tube, a slot type shadow mask in which the vertical pitch of slots is within 0.2 mm to 0.3 mm, the width of each bridging portion is within 0.02 mm to 0.08 mm and the width of each connecting portion of the bridging portions is within 0.005 mm to 0.03 mm is combined with a neck tube of the diameter within 20 mm to 25 mm.

REFERENCES:
patent: 4996458 (1991-02-01), Hottori et al.
patent: 5818155 (1998-10-01), Kawamura et al.
patent: 5898264 (1999-04-01), Nose et al.
N. Aibara et al., High Legible Color Display Tube, IEICE Trans. Electron, vol. E80-C, No. 8 pp. 1075-1078, Aug. 1997.
K. Hirabayashi, High-Resolution Color Display Tube, National Technical Report, vol. 2 pp. 251-263, Apr. 1979.
Translation K. Hirobayash, High-Resolution Color Display Tube National Technical Report, vol. 2 pp. 251-263, Apr. 1979.

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