A PDP includes first and second substrates facing each other, a plurality of inner barrier ribs in a display region between the first and second substrates to define display discharge cells, a plurality of dummy barrier ribs in a non-display region between the first and second substrates, the non-display region being peripheral to the display region, a plurality of electrodes between the first and second substrates to generate a discharge in the display discharge cells, a first dielectric layer on the first substrate, the first dielectric layer overlapping the display region and only a portion of the non-display region, at least one phosphor layer in each of the display discharge cells, and a frit in the non-display region connecting the first and second substrates, the dummy barrier ribs being arranged between the frit and the inner barrier ribs.