COLOR PICTURE TUBE

PROBLEM TO BE SOLVED: To provide a color picture tube which is inexpensive and of high reliability by avoiding changes in interval between ribbon-shaped plates caused by the vibration, twisting, etc., of the ribbon-shaped plates, without using gallium materials. SOLUTION: A color picture tube has a face panel having phosphors of plural colors on its inner surface, a shadow mask 16 provided in a position opposite to the inner surface of the face panel and formed by arranging a plurality of ribbon-shaped plates 15 in the form of stripes, and a mask frame 17 where the plurality of ribbon-shaped plates 15 are fixed between a pair of opposite supporting parts 17a, 17b by stretching both ends of each ribbon- shaped plate 15 on the pair of supporting parts 17a, 17b. At the shadow mask 16, the plurality of ribbons-shaped plates 15 and a plurality of bridges 18 connecting the adjacent ribbon-shaped plates 15 together are integrally molded, and the shadow mask 16 is fixed between a pair of the supporting parts 17a, 17b of the mask frame 17 in such a manner that the adjacent ribbon-shaped plates 15 differ in stretching force.