Color cathode ray tube having shadow mask with silicon

Details Color cathode ray tube having shadow mask with silicon Color cathode ray tube having shadow mask with silicon

1986-03-24

1987-09-08

DeMeo, Palmer C.

Electric lamp and discharge devices

Cathode ray tube

Shadow mask, support or shield

313407, H01J 2907

Patent

active

046926593

ABSTRACT:
In a color cathode ray tube provided with in-tube metallic members of which the main constituent is iron, such as the shadow mask assembly or inner shield, at least part of the surface of these metallic members is formed with a blackened region. The vicinity of the surface of this blackened region contains Al, Fe and Si, the Si content being selected in the range 1.5 wt % to 30 wt %, preferably 4 wt % to 15 wt %.

REFERENCES:
patent: 3760214 (1973-09-01), Yamazaki et al.
patent: 4306172 (1981-12-01), Matsukura et al.
patent: 4558252 (1985-12-01), Kanto et al.

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