Patent ID: 7605537

Claim:
A plasma display panel comprising: a first substrate and a second substrate opposing one another with a gap therebetween; address electrodes on the second substrate; barrier ribs between the first substrate and the second substrate, the barrier ribs comprising walls for a plurality of discharge cells and for a plurality of non-discharge regions; a phosphor layer within each of the discharge cells; and discharge sustain electrodes on the first substrate and extending in a direction crossing the address electrodes, wherein the non-discharge regions are in areas encompassed by discharge cell abscissas through centers of adjacent said discharge cells and discharge cell ordinates through centers of adjacent said discharge cells, the discharge cell ordinates being parallel with the address electrodes, wherein ends of the discharge cells gradually decrease in width along the extending direction of the discharge sustain electrodes as a distance from a center of a corresponding one of the discharge cells is increased along an extending direction of the address electrodes, and wherein the discharge sustain electrodes include bus electrodes extending in a direction substantially perpendicular to the extending direction of the address electrodes and outside areas of the discharge cells but across areas of the non-discharge regions, and protrusion electrodes extending from each of the bus electrodes such that a pair of opposing said protrusion electrodes is in an area corresponding to one of the discharge cells.