Appeal No. 2001-0821
Application 08/962,567
1. A shadow-mask type color cathode-ray tube comprising:
a face panel on which an image is displayed;
a funnel connected to said face panel, said funnel and said
face panel forming a vacuum container;
electron guns for producing electron beams for red, green
and blue colors, said guns being horizontally arranged in line;
a deflection yoke provided around said funnel, said yoke
deflecting said electron beams;
a phosphor screen formed on an inner surface of said face
panel in said container;
said screen having stripes of phosphor materials for red,
green and blue colors, said stripes being horizontally arranged
in said screen;
a shadow mask fixed apart from said face panel and opposed
to said phosphor screen in said container;
said shadow mask having slots which selectively allow said
electron beams to arrive at said phosphor screen through said
mask, each of said slots having a vetically elongated shape; said
electron beams being scanned perpendicular to said slots;
said slots being arranged horizontally at a fixed horizontal
pitch with respect to each other;
said slots being arranged vertically at a fixed vertical
pitch with respect to each other;
wherein at least two vertically adjacent ones of said slots
each have a bridge area therebetween, said bridge area serving as
an electron-beam stopping area;
wherein at least two horizontally adjacent ones of said
slots are vertically shifted a fixed distance relative to each
other, said fixed distance being equal to approximately a half of
said vertical pitch; and
2
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