Patent ID: 7247341

Claim:
A method for forming electrodes for a flat panel display device comprising the step of forming electrodes for a flat panel display device using ink for ink jet printing, which consists of a dispersion containing metal ultrafine particles independently dispersed therein and a dispersant, wherein the dispersion is prepared by a method comprising the first step of evaporating a metal in a gas atmosphere in the presence of the vapor of the first solvent to thus give a dispersion of metal ultrafine particles dispersed in the first solvent; the second step of adding a low molecular weight polar solvent as the second solvent to the dispersion prepared in the first step to thus precipitate the metal ultrafine particles and removing the resulting supernatant to thus substantially remove the first solvent; and the third step of adding a third solvent to the precipitates thus prepared to give a dispersion of independently dispersed metal ultrafine particles, wherein the third solvent is not a residual solvent.