Patent ID: 8334820

Claim:
A plasma display panel comprising: a front substrate; a scan electrode and a sustain electrode that are positioned parallel to each other on the front substrate; an upper dielectric layer positioned on the scan electrode and the sustain electrode; a rear substrate on which an address electrode is positioned to cross the scan electrode and the sustain electrode; a lower dielectric layer positioned on the address electrode; and a barrier rib that is positioned between the front substrate and the rear substrate and partitions a discharge cell, the barrier rib including lead (Pb) equal to or less than 1,000 ppm (parts per million), wherein: discharge gas is filled between the front substrate and the rear substrate and includes helium (He) of 9% to 42%, each of the scan electrode and the sustain electrode includes a plurality of line portions crossing the address electrode, at least one connection portion coupling at least two line portions of the plurality of line portions, and two or more projecting portions projecting from at least one of the plurality of line portions towards a center of the discharge cell from a top plan point of view of the discharge cell, the two or more projecting portions of the scan electrode are spaced from each other at a first interval, and the two or more projecting portions of the sustain electrode are spaced from each other at a second interval, at least one of the two or more projecting portions of the scan electrode and at least one of the two or more projecting portions of the sustain electrode are spaced from each other at a third interval, the first interval is substantially equal to the second interval, and the third interval is greater than the first interval or the second interval, wherein the address electrode includes a Pb content, the Pb content of the address electrode being equal to or less than 1,000 ppm, and wherein the Pb content lowers conductivity of the address electrode to achieve a corresponding reduction in capacitance.