Plasma display device with reduced display defects

A plasma display device comprising:

• first and second substrates sandwiching a discharge gas therebetween;
• a plurality of first and second electrodes arranged alternately on the first substrate to extend in a first direction;
• a plurality of third electrodes arranged on the second substrate to extend in a second direction perpendicular to the first direction;
• display cells formed between the first and second electrodes along the third electrodes;
• first and second discharge electrode parts extending from the first and second electrodes toward the second and first electrodes in the display cells, respectively;
• first and second auxiliary electrodes connecting the first and second electrodes with tip parts of the first and second discharge electrode parts, respectively;
• and
• partition walls formed on the second substrate and separating arrays of the display cells in the second direction from one another, the partition walls having their thicknesses increased in specified ones of the display cells,
• wherein:
• the display cells include first and second display cells, the first display cells including the first and second auxiliary electrodes, the second display cells each lacking at least one of the first and second auxiliary electrodes;
• and
• the third electrodes are formed in spaces partitioned by the partition walls.