There is disclosed an article of manufacture comprising a Plasma-Disc.TM. for use in a plasma display panel (PDP) device having one or more substrates and a multiplicity of pixels or sub-pixels. Each pixel or sub-pixel is defined by a hollow Plasma-Disc.TM. filled with an ionizable gas. The Plasma-disc has at least two opposing flat sides such as a flat top and flat bottom or a flat rear and flat front. One or more other sides or edges may also be flat. Two or more electrodes are in electrical contact with each Plasma-disc. A flat base side of the Plasma-disc shell is in contact with a substrate and each electrode is in electrical contact with a flat side of the Plasma-disc. The PDP may also include inorganic and organic luminescent materials that are excited by the gas discharge within each Plasma-disc. The luminescent material may be located on an exterior and/or interior surface of the Plasma-disc or incorporated into the shell of the Plasma-disc. Up-conversion and down-conversion materials may be used. The substrate may be rigid or flexible with a flat, curved, or irregular surface.