Plasma display device having a protective layer including a base protective layer and a particle layer

A plasma display device comprising:

• a plasma display panel including:
• a pair of electrodes including a first electrode and a second electrode;
• a dielectric layer formed so as to cover the first electrode and the second electrode;
• a protective layer formed so as to face a discharge section on a surface of the dielectric layer;
• a first substrate including a part facing the discharge section on the surface of the dielectric layer;
• a second substrate including a third electrode and a dielectric layer formed so as to cover the third electrode;
• and
• a driving circuit for driving the plasma display panel by a driving method,
• wherein the first substrate is positioned so as to face the second substrate,
• wherein a discharge gas is filled between the first substrate and the second substrate,
• wherein the protective layer includes:
• a base protective layer formed of a thin film containing a metal oxide;
• and
• a particle layer formed by discretely sticking, to the base protective layer, agglomerated particles in which a plurality of single-crystal particles of magnesium oxide are aggregated by static electricity between the plurality of single-crystal particles of magnesium oxide and are distributed across the entire surface of the base protective layer,
• wherein the plurality of single-crystal particles of magnesium oxide have a ratio Sa/Sb of 1 or higher, where Sa is a spectral integrated value of a wavelength region of 200 nm or higher and lower than 300 nm in cathode luminescence, and Sb is a spectral integrated value of a wavelength region of 300 nm or higher and lower than 550 nm;
• wherein, in the driving method, one field is formed of a plurality of subfields,
• wherein each of the subfields includes an initializing period and an address period, and
• wherein the initializing period includes (i) a first half of the initializing period for applying voltage, which gradually increases from a first voltage and to a second voltage, to the second electrode, and (ii) a second half of the initializing period for applying voltage, which gradually decreases from a third voltage and to a fourth voltage, to the second electrode.