Patent ID: 7453208

Claim:
A barrier rib structure of plasma display panel (PDP) comprising: a plurality of parallel arranged vertical barrier ribs, wherein a first distance is generated between any two vertical barrier ribs adjacent to each other; a plurality of parallel arranged first horizontal barrier ribs having a first length, wherein the first horizontal barrier ribs are connected to one side of the vertical barrier ribs; a plurality of parallel arranged second horizontal barrier ribs having a second length, wherein the second horizontal barrier ribs are connected to the other side of the vertical barrier ribs, and disposed alternately with the corresponding first horizontal barrier ribs for forming a plurality of double blockade structures, wherein the gap between each first horizontal barrier rib and each second horizontal barrier rib of the double blockade structure comprises a gas passage, and the height of each first horizontal barrier rib and each second horizontal barrier rib gradually decreases from the end connected to the vertical barrier ribs to another end for forming the gas passage; and a plurality of electrical discharge spaces formed between the double blockade structures and the vertical barrier ribs, wherein each of the electrical discharge-spaces are formed between two adjacent gas passages.