Positive type photosensitive paste composition for PDP electrode, PDP electrode prepared therefrom, and PDP comprising the PDP electrode

A positive type photosensitive paste composition for a plasma display panel (PDP) electrode having a trapezoidal shape in which an area of a lower portion which is in contact with a substrate is greater than that of an upper portion which is out of contact with a substrate, comprising:

• a conductive powder, an inorganic binder and a photosensitive vehicle, wherein the photosensitive vehicle comprises an organic binder, a photoacid generator, a solvent and one or more additives, wherein the organic binder comprises a copolymer comprising recurrent units of the formula (1):
• wherein R1 is H or CH3,
• R2 is a saturated or unsaturated C1-C6 alkyl group or a C1-C6 group containing an ether group, a carbonyl group or an ester group,
• R3 is a group having a hydroxyl group,
• R4 is hydrogen or a group having a carboxylic group, preferably a C1-C6 carboxylalkyl group,
• R5 is carboxy protecting group, and
• each of a, b, c and d is a molar ratio (%) of each monomer, a is 10 to 60, b is 0 to 30, c is 0 to 10, d is 10 to 60, and a+b+c+d=100;
• wherein the photoacid generator is at least one selected from the group consisting of diphenyliodonium hexafluorophosphate, diphenyliodonium hexafluoroarsenate, diphenyliodonium hexafluoroantimonate, diphenylparamethoxyphenyl triflate, diphenylparatoluethyl triflate, diphenylparaisobutylphenyl triflate, diphenylpara-t-butylphenyl triflate, triphenylsulfonium hexafluorophosphate, triphenylsulfonium hexafluoroarsenate, triphenylsulfonium hexafluoroantimonate, triphenylsulfonium triflate and dibutylnaphthylsulfonium triflate;
• and
• wherein an amount of the photoacid generator is from about 0.1 to about 20 parts by weight based on 100 parts by weight of the organic binder.