Patent ID: 7504773

Claim:
A plasma display panel (PDP) comprising: a pair of plates opposed to each other with an enclosed discharge space in between, and at least one of the plates having a communication hole communicating with inside of the PDP and with an exhaust pipe disposed outside of the PDP, the exhaust pipe including a connecting portion which connects the exhaust pipe to the at least one of the plates having the communication hole and a tubular portion, the connecting portion having a larger average inner diameter than an inner diameter of the tubular portion; and a gas adsorption member having one or more holes with cross section areas formed therein, the gas adsorption member being movable within the connecting portion of the exhaust pipe and having an outer diameter that is greater than the inner diameter of the tubular portion, wherein the one or more holes of the gas adsorption member have a combined total cross section area that is greater than a cross section area of the communication hole.