A plasma display apparatus comprising a panel displaying images, a circuit board that drives the panel, and a chassis base that supports the panel and the circuit board. A signal transfer member couples the panel and the circuit board, and a protection plate protects the signal transfer member and a device mounted on the signal transfer member by covering the signal transfer member and the device. The protection plate is coupled with the chassis base by a coupling means, and a damage protection means, which is disposed on a side of a coupling part of the protection plate and the chassis base, prevents damage of the device by distributing a coupling force.