Patent ID: 7329980

Claim:
A shadow mask for cathode ray tubes, the shadow mask having a plurality of slots through which an electron beam passes for sorting colors of the electron beam, wherein when the width of a smaller hole part of each of the slots through which the electron beam passes is defined as Sw, the horizontal distance between the end of a taper-shaped larger hole part facing the panel side of each of the slots, which is adjacent to the edge part of the shadow mask, and the end of the smaller hole part, which is adjacent to the edge part of the shadow mask, is defined as Ta, and the incident angle at which the electron beam passes through each of the slots is defined as θ, the shadow mask has at least one slot through which the electron beam passes at an incident angle θ of above 47 degrees, and the at least one slot through which the electron beam passes at an incident angle θ of above 47 degrees is configured such that the following inequality is satisfied: 1< Ta/Sw< 2.