Patent ID: 7750567

Claim:
A plasma display device comprising a discharge cell including a scan electrode and a sustain electrode formed on a front substrate, and an address electrode formed on a rear substrate, the discharge cell being separated from neighboring discharge cells by means of a first barrier rib and a second barrier rib crossing the first barrier rib formed on the rear substrate, wherein a distance between the scan electrode and the sustain electrode is set in a range of 90 to 200 μm, the first barrier rib has a bottom width wider than a top width, a difference between the bottom width and the top width of the first barrier rib is set in a range of 80 μm or less, wherein a value obtained by dividing a first length of an overlapping area of the scan electrode and an area of the rear substrate other than a region in which the barrier ribs are formed within the discharge cell by a first pitch of the discharge cell is greater than 0.63 and smaller than 1.