Patent ID: 7298086

Claim:
A plasma tube array comprising: a plurality of light-emitting tubes arranged parallel to one another, each containing a fluorescent substance layer; a front supporting member and a back supporting member which spread over the front and back of the plurality of light-emitting tubes; a plurality of display electrode pairs provided on the surface of the front supporting member facing the light-emitting tubes, each made up of two display electrodes extending parallel to each other in a direction extending across the plurality of light-emitting tubes between which a predetermined discharge slit is interposed, with one display electrode pair neighboring the other with a non-discharge slit interposed in between; and a plurality of signal electrodes provided on the surface of the back supporting member facing the light-emitting tubes, formed associated with the plurality of light-emitting tubes, which extend along the light-emitting tubes, wherein at least one of the display electrodes constituting the display electrode pair has a plurality of openings and metal wires forming the openings have different widths depending on area.