Plasma display panel

A plasma display panel, comprising:

• a first substrate and a second substrate provided opposing one another with a predetermined gap therebetween;
• address electrodes formed on the second substrate;
• barrier ribs mounted between the first substrate and the second substrate, the barrier ribs defining a plurality of discharge cells and a plurality of non-discharge regions;
• phosphor layers formed within each of the discharge cells;
• and
• discharge sustain electrodes formed on the first substrate in a direction intersecting the address electrodes,
• wherein the non-discharge regions are formed in areas encompassed by discharge cell abscissas that pass through centers of adjacent discharge cells and discharge cell ordinates that pass through centers of adjacent discharge cells,
• wherein each of the discharge cells is formed such that ends of the discharge cells gradually decrease in width along a direction the discharge sustain electrodes are formed as a distance from a center of the discharge cells is increased along a direction the address electrodes are formed, and
• wherein the discharge sustain electrodes include bus electrodes that extend in a direction substantially perpendicular to a direction the address electrodes are formed and outside areas of the discharge cells but across areas of the non-discharge regions, and protrusion electrodes formed extending from each of the bus electrodes such that a pair of opposing protrusion electrodes is formed within areas corresponding to each discharge cell.