Patent ID: 7154224

Claim:
A plasma display panel, comprising: a front substrate; a rear substrate disposed in opposition to the front substrate; first barrier ribs disposed between the front substrate and the rear substrate for defining discharge cells with the front substrate and the rear substrate, and formed of a dielectric material; front discharge electrodes disposed inside the first barrier ribs so as to surround the discharge cells; rear discharge electrodes spaced apart from the front discharge electrodes and disposed inside the first barrier ribs so as to surround the discharge cells; phosphor layers disposed in the discharge cells; and a discharge gas deposited in the discharge cells; wherein, from a longitudinal sectional view of the first barrier ribs, a virtual horizontal axis extending from a lowermost portion of each of the rear discharge electrodes and parallel to the front substrate intersects a lateral surface of the first barrier ribs at a certain position; and wherein an angle between a tangent line at an intersection of the horizontal axis and the lateral surfaces of the first barrier ribs, on one side, and a virtual vertical axis orthogonal to the horizontal axis, on another side, ranges from 4° to 17°.