Panel for color cathode ray tube

Details Panel for color cathode ray tube Panel for color cathode ray tube

1998-02-03

2000-10-31

Patel, Vip

Electric lamp and discharge devices

Cathode ray tube

Screen

313477R, H01J 2910

Patent

active

061407569

ABSTRACT:
A color cathode ray tube has a vacuum enclosure including a panel unit having a fluorescent film formed on its inner face, consisting of densely arrayed three color dot trios of a fluorescent material, a shadow mask being suspended in the vicinity of the fluorescent film; a neck unit housing an electron gun for emitting three electron beams; and a funnel unit for joining the panel unit and the neck unit. The panel unit has a diagonal diameter not more than 52 cm, wherein the effective display area on the outer face of the panel unit has a diagonal radius of curvature not less than 1,000 mm, and the dot trios of the fluorescent material are horizontally arrayed in a number not less than 1,450. As a result, it is possible to provide a color cathode ray tube which has a resolution corresponding to 2M pixels, but which has no display luminance irregularity and which can be adopted for use in a desktop terminal.

REFERENCES:
patent: 5107999 (1992-04-01), Canevazzi

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