Patent ID: 7391155

Claim:
A plasma display panel, comprising: a first substrate and a second substrate provided opposing one another with a predetermined gap therebetween; a plurality of display electrodes arranged on the first substrate; a plurality of address electrodes arranged on the second substrate substantially perpendicular to and intersecting the display electrodes; barrier ribs arranged in the gap between the first substrate and the second substrate, the barrier ribs dividing the gap between the first and the second substrates into a plurality of discharge cells; and phosphor layers comprising a phosphor layer material arranged within each of the discharge cells, wherein the barrier ribs comprise a plurality of parallel first barrier rib members arranged in a direction crossing a longitudinal direction of the address electrodes and a plurality of parallel second barrier rib members arranged substantially perpendicular to and intersecting the first barrier rib members, wherein a first portion of a sidewall of the first barrier rib members being concave and a second portion of a sidewall of the first barrier rib members having a constant slope (s) satisfying the inequality 1.88≦s≦1.93, wherein an apex width (a) of a top portion of the first barrier rib members being less than a base width (c) of the first barrier rib members.