Plasma display apparatus with black matrices

A plasma display apparatus, comprising:

• an upper substrate;
• a first electrode and a second electrode coupled to the upper substrate;
• a lower substrate disposed to face the upper substrate;
• and
• a third electrode and a barrier rib lower substrate,
• wherein fourth and fifth electrodes are coupled to the upper substrate and are separated from each other on substantially a same straight line, wherein:
• the barrier rib comprises a traverse barrier rib to cross the third electrode,
• the first electrode comprises a first electrode line and a second electrode line to cross the third electrode,
• a first protrusion electrode is to protrude from the first electrode line toward a center of a discharge cell,
• a second protrusion electrode is to protrude from the second electrode line toward the traverse barrier rib,
• first region the traverse barrier rib is interposed between the fourth and fifth electrodes, and
• virtual lute extending from second protrusion electrode overlaps at least part of the first region.

A plasma display apparatus, comprising:

• an upper substrate;
• a first electrode and a second electrode coupled to the upper substrate;
• a lower substrate disposed to face the upper substrate;
• and
• a third electrode and a barrier rib coupled to the lower substrate,
• wherein the barrier rib comprises a traverse barrier rib to cross the third electrode, and wherein:
• the first electrode comprises first and second electrode lines to cross the third electrode,
• a first protrusion electrode configured to protrude from the first electrode line toward a center of a discharge cell,
• a second protrusion electrode configured to protrude from the second electrode line toward the traverse barrier rib, and
• a width of a black matrix formed in a first region including the traverse barrier rib is narrower than a width of the black matrix formed in a region different from titan the first region, and
• wherein a virtual line extending from the second protrusion electrode overlaps with at least part of the first region.