Patent ID: 7232530

Claim:
A method of manufacturing a plasma display device, said method comprising painting at least one of a plurality of discharging cells of the plasma display device with a green phosphor ink comprising a resin component including ethyl cellulose, a solvent component including at least one of terpineol, butyl carbitol-acetate and pentanediol, and a positively or zero charged Zn 2 SiO 4 :Mn green phosphor, wherein the phosphor is produced by crushing a negatively charged Zn 2 SiO 4 :Mn green phosphor until the diameter of the crushed phosphor is 0.9 times the diameter of the phosphor before the phosphor is crushed or less, and then heat-treating the crushed phosphor at 400 to 1,000° C. in a nitrogen atmosphere or a nitrogen-oxygen atmosphere.