PURPOSE: To improve quality and an application yield without changing characteristic of slurry and the conditions of a manufacturing line by mutually adjusting each interval between edge parts of stripes of fluorescent materials to be formed first and next, on each exposure condition, and last applying fluorescent material slurry.

CONSTITUTION: An exposure position of stripes of a blue fluorescent material 3 is displaced 10 by an exposure base setting gauge at 0. 15 to 0.20nm to stripes side of a red fluorescent material 9 from the center 8 of an original luminescent region and each interval 7 between stripes of the blue fluorescent material 3 and stripes of a green fluorescent material 5 of a second color is kept at 20 microns or more. That is, grooves formed with the first and second color fluorescent materials serve as a bypass for fluidity of slurry and give homogeneity to an applied film, when the last slurry is applied. In this way, both quality and yield are excellent, and there is no unfavorable effect on either the manufacturing process or the material.