US Patent 7504776 Plasma display panel

A plasma display panel includes a pair of substrates that are arranged opposite to each other, each having a display region to display an image and a non-display region not to display an image. Barrier ribs are located in a space between the substrates for forming a plurality of discharge cells. Phosphor layers are formed in the discharge cells. Address electrodes are formed on one of the substrates. First and second electrodes are formed on the other substrate so as to extend in a direction orthogonal to the address electrodes and are spaced apart from each other to form discharge gaps in the discharge cells. The first and second electrodes extend into the non-display region with different lengths from each other.