Patent ID: 7880395

Claim:
A plasma display panel (PDP), comprising a first substrate on which discharge electrodes and a first dielectric layer are formed, each of said discharge electrodes generating a display discharge and said first dielectric layer covering the discharge electrodes; a second substrate on which the following are formed: address electrodes that are located orthogonally to the discharge electrodes; a second dielectric layer that covers the address electrodes; barrier ribs that are formed on the second dielectric layer; phosphor layers, each being formed in a concave portion between each two neighboring barrier ribs; and heating elements that are located close to the respective phosphor layers; a timer circuit that measures a panel drive time during which the PDP has been driven; a memory that stores a total drive time that is obtained by accumulating each panel drive time measured by the timer circuit; a control unit operable to judge that the total drive time stored in the memory has reached a set time; and a heating element energization circuit that energizes the heating elements based on a result of the judgment by the control unit.