Patent ID: 7012356

Claim:
A color cathode ray tube comprising: a panel having a fluorescent surface therein; a funnel coupled sealingly with the panel; electron guns installed in the funnel, for projecting electron beams; a deflection yoke for deflecting the electron beams; and a shadow mask for selecting colors, wherein the shadow mask satisfies the following condition: B1 P1 ≤ B2 P2 < B3 P3 ; where B1 is a length of a bridge as a distance between holes in a vertical direction at a center portion of the shadow mask; B2 is a length of a bridge as a distance between holes in a vertical direction at a corner portion of the shadow mask; B3 is a length of a bridge as a distance between holes at edge portions of the shadow mask in a direction of a long axis thereof; P1 is a vertical pitch of the holes at the center portion of the shadow mask; P2 is a vertical pitch of the holes at a corner portion of the shadow mask; and P3 is a vertical pitch of the holes at the edge portions of the shadow mask in a direction of a long axis thereof.