Patent ID: 7336027

Claim:
A plasma tube array, comprising: plural light emitting tubes that each have a fluorescent layer inside thereof and are mutually lined up in parallel; a front surface support substrate and a rear surface support substrate that holds the plural light emitting tubes between themselves; plural display electrodes that are formed on a surface, which faces the light emitting tubes, of the front surface support substrate in the direction to cross the light emitting tubes; and plural signal electrodes that are associated with the respective light emitting tubes and formed on a surface, which faces the light emitting tubes, of the rear surface support substrate in the direction along the light emitting tubes, wherein the fluorescent layer of each of the light emitting tubes includes plural types of fluorescent materials emitting fluorescent lights of different colors, the fluorescent materials being disposed in sequence in the longitudinal direction of the light emitting tubes, and wherein the display electrodes are associated with the respective fluorescent materials that are disposed in sequence in the longitudinal direction of the light emitting tubes.