A PDP is equipped with row electrode pairs deposited on the inner face of a front glass substrate and a dielectric layer covering the row electrode pairs. A discharge space defined between the front glass substrate and the back glass substrate is filled with a discharge gas. The dielectric layer has a laminated structure made up of a first dielectric layer formed of a smaller nano-particle silica film including silica particles of a particle diameter of 10 nm to 25 nm, and a second dielectric layer formed of a larger nano-particle silica film including silica particles of a particle diameter of 25 nm to 40 nm.