摘要 |
The present invention provides A color cathode ray tube comprising: a panel having a flat outer surface and an inner surface that has a predetermined curvature; and a shadow mask, wherein <maths id="MATH-US-00001" num="00001"> <MATH OVERFLOW="SCROLL"> <MROW> <MFRAC> <MI>B2</MI> <MI>P2</MI> </MFRAC> <MO><=</MO> <MFRAC> <MI>B3</MI> <MI>P3</MI> </MFRAC> </MROW> </MATH> </MATHS> 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 four corner portions 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 the four corner portions 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.
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