PLASMA DISPLAY PANEL AND METHOD FOR MANUFACTURING THE SAME

摘要

This invention is directed to modification of a protective layer to solve both problems of "discharge delay" and "temperature dependency of discharge delay" while realizing good drive at low voltage. There is also provided a plasma display panel, which can realize excellent display properties, by solving the above problems and, further, suppressing "dependency of discharge delay upon space charge". An alkoxide of magnesium having a purity of not less than 99.95% (Mg(OR)<SUB>2</SUB>) or acetylacetone of magnesium having a purity of not less than 99.95% is provided. A small amount of acid is added to this aqueous solution for hydrolysis to prepare a gel of magnesium hydroxide as an MgO precursor. The gel is fired in the air at a temperature of 700°C or above to prepare a powder containing MgO fine particles (16a to 16d) having an NaCl crystal structure surrounded by (100) face, (110) face and (111) face. The powder is coated on the dielectric layer (7) or surface layer (8) to form a group of MgO fine particles (16).