A plasma display panel having improved bus electrode layer structure helps to prevent defective non-discharging discharge cells. From the overlapped transparent electrode layer and the bus electrode layer of the plasma display panel, protrusions extend from respective line portions towards a center of corresponding discharge cells. The protrusions of the transparent electrode layer are longer in length than the protrusions of the bus electrode layer. The width of the bus electrode layer is wider than the base of the protrusion of the transparent electrode layer and provides electrical connectivity even when the base of the protrusion of the transparent electrode layer breaks.