Dispersant, paste composition including the dispersant, inorganic device using the paste composition, and display apparatus including the inorganic device

A paste composition comprising:

• inorganic particles, wherein the inorganic particles include at least one phosphor selected from the group consisting of YBO3:Tb, BaMg10Al17:Eu, YGdBO3:Eu, and ZnSiO4:Mn;
• 24-80 parts by weight an organic solvent, based on 100 parts by weight of the inorganic particles;
• and
• 0.5-3 parts by weight of a dispersant based on 100 parts by weight of the inorganic particles, the dispersant comprising:
• a hydrophobic moiety comprising a branched alkyl group and an arylene group:
• and
• a hydrophilic moiety comprising an alkylene oxide group and a carboxylic acid group,
• wherein the alkyl group is a substituted or unsubstituted alkyl group of 5-30 carbon atoms, the arylene group is a substituted or unsubstituted arylene group of 6-30 carbon atoms, and the alkylene oxide group is a substituted or unsubstituted alkylene oxide group of 2-10 carbon atoms,
• wherein the dispersant is represented by Formula 3 below:
• wherein p is 3 to 10.