| 摘要 |
Each of a plurality of arrays of apertures 15 of a shadow mask 5 has a vertically long aperture 16, a vertically short aperture 17 and a bridge 14 between these apertures. In each of the arrays of apertures 15, one long aperture 16 and one or more short apertures 17 are arranged alternately, and a horizontal maximum width H Smax of the short aperture 17 is larger than a horizontal basic width H L of the long aperture 16. This makes it possible to provide a color cathode ray tube having an improved brightness without causing moiré fringes, color displacement, breaking of the shadow mask or variation in color purity. |
