| 摘要 |
PROBLEM TO BE SOLVED: To provide a manufacturing method of a color cathode-ray tube using a fluor having a large average particle size and enabling the display of high- luminance and high-quality images. SOLUTION: The average particle size of a fluor for the first and third colors are to be about 4.0 to 5.5μm and about 8.0μm or less, respectively. Also, the average particle size of the first color is to be smaller by 1.0μm or more than that for the second color and the same for the second color is to be smaller by 1.0μm or more than that of the third color.
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