A plasma display panel (PDP) has an exhaust pipe protruding from a panel assembly, a chassis base mounted on one side of the panel assembly to support the panel assembly such that the exhaust pipe protrudes through a hole formed in the chassis base. A reinforcement structure is mounted on the chassis base to fortify the chassis base and to prevent torque and bending of the panel assembly. A protection structure is designed to form a space to enclose the exhaust pipe to prevent damage to the exhaust pipe. The protection structure is formed to be integral with the reinforcement structure.