A display device ( 12 ) has a display screen, the display screen comprising a plurality of gas discharge tubes ( 20 R, 20 G, 20 B, . . . 28 R, 28 G, 28 B) disposed side by side. Each of the gas discharge tubes includes a phosphor layer ( 4 ) formed therein and also includes a discharge gas contained therein. Each gas discharge tube has a plurality of light-emitting points. Each of the plurality of gas discharge tubes ( 20 R, 20 G, 20 B, . . . 28 R, 28 G, 28 B) is curved along the longitudinal direction thereof. The display screen is formed by combining the plurality of gas discharge tubes having different magnitudes of curvature.