shown in fig2 c ribs 14 are formed in a portion where the dry film is left after the formation of the ribs 14 as shown in fig2 d all entire sides of the ribs 14 are coated with a paste containing a white inorganic fine particle as the main component and are dried further a phosphor material for each color is painted sequentially on sides of each of the ribs 14 dried and then baked this causes the ribs 14 to be hardened by being baked and at the same time both the inorganic material and phosphor material to be hardened by being baked and as a result the inorganic material layer 15 and phosphor layer 16 are formed moreover the inorganic material layer 15 has an effect of increasing a reflection rate and improving luminance of the pdp however its formation may be omitted thus according to the formation method of the rear substrate of the pdp of the fifth embodiment by using the photosensitive silver paste containing the silver particle and glass frit unlike in the conventional case even if the dielectric layer is not formed on the address electrode the sandblast process for formation of the ribs 14 can be performed without causing an damage to the address electrode and therefore the number of processes of manufacturing.