A barrier rib structure for a plasma display panel is described. The barrier rib structure formed on a back substrate has a plurality of parallel barrier ribs. Each barrier rib has a plurality of nodes composed of two side-expanded trapezoid bulges. The barrier ribs are arranged according to the nodes...http://www.google.com/patents/US6720732?utm_source=gb-gplus-sharePatent US6720732 - Barrier rib structure for plasma display panel
