Row electrode pairs and column electrodes are placed between a front glass substrate and a back glass substrate facing each other on either side of a discharge space of a PDP. The row electrode pairs and the column electrodes extend in directions at right angles to each other to form unit light-emitting areas at intersections with each other in the discharge space. A low-dielectric layer is formed on the back glass substrate, and formed of a low-dielectric material having a dielectric constant smaller than that of the back glass substrate. The column electrodes are formed on the low-dielectric layer.