Patent ID: 7109656

Claim:
A plasma display panel comprising: a first substrate and a second substrate opposing each other; address electrodes formed on the second substrate and aligned in a first direction; barrier ribs arranged between the first substrate and the second substrate to define a plurality of discharge cells; a phosphor layer formed within each of the discharge cells; and discharge sustain electrodes formed on the first substrate, the discharge sustain electrodes having bus electrodes extending along a direction intersecting the first direction to form a corresponding pair within each discharge cell, and extension electrodes extending from the bus electrodes into each discharge cell to form an opposing pair, each extension electrode having an end with a further extending portion with a first width 2α, and a lesser extending portion with a second width β, wherein a distance between further extending portions in each opposing pair of extension electrodes defines a first gap, and a distance between lesser extending portions in each opposing pair of extension electrodes defines a second gap, the second gap longer than the first gap, and wherein the first width and the second width satisfy 1.5≦α/β≦4.