Plasma display panel (PDP) having upper and lower barrier ribs whose widths have a predetermined relationship

A Plasma Display Panel (PDP) comprising:

• a upper substrate;
• a lower substrate arranged in parallel with the upper substrate;
• upper barrier ribs arranged between the upper substrate and the lower substrate, the upper barrier ribs including a dielectric and defining discharge cells with the upper and lower substrates;
• a plurality of upper discharge electrodes arranged within the upper barrier ribs to surround the discharge cells;
• a plurality of lower discharge electrodes arranged within the upper barrier ribs to surround the discharge cells, the lower discharge electrodes being separated from the upper discharge electrodes, at least one of the plurality of upper discharge electrodes and the plurality of lower discharge electrodes includes a plurality of separate electrodes;
• lower barrier ribs of closed type arranged under the upper barrier ribs, the lower barrier ribs having the same shape as the upper barrier ribs;
• a phosphor layer arranged in each of the discharge cells;
• and
• a discharge gas contained within each discharge cell.