Patent ID: 7183711

Claim:
A plasma display panel including a plurality of discharge cells and a barrier rib layer which defines said plurality of discharge cells; each of said plurality of discharge cells comprising: two opposing electrodes disposed on inner surfaces of opposing front and rear substrates, respectively, for generating discharge between said front and rear substrates for forming a display; dielectric films for covering said two opposing electrodes at least partially; discharge gas; and a phosphor film for generating visible light by being excited by ultraviolet rays produced by said discharge of said discharge gas, wherein said barrier rib layer is fabricated in a form of a sheet separate from said front and rear substrates, is provided with a plurality of openings each of which forms a discharge space in each of said plurality of discharge cells, with walls of said plurality of openings being coated with said phosphor film, and is sandwiched between said front and rear substrates, wherein a relationship of 0.1≦S 2 /S 1 ≦0.4 is satisfied, where S 1 is an area of a projection of a space occupied by one of said plurality of discharge cells onto said front substrate, S 2 is an area of a window portion of said front substrate through which the visible light is irradiated from said one of said plurality of discharge cells into an outside of said front substrate, and wherein relationships of 100 Torr×mm≦pd≦400 Torr×mm and 0.2 mm≦d are satisfied, where p is a pressure of said discharge gas, and d is a distance between said two opposing electrodes.