| abstract |
The present invention provides a phosphor and a plasma display device that have improved luminance deterioration, chromaticity change, or discharge characteristics, and high initial characteristics. In the plasma display device of the present invention, a plurality of discharge cells of one color or a plurality of colors are arranged, and a phosphor layer (110B, 110R, 110G) of a color corresponding to each discharge cell is disposed, The plasma display device includes a plasma display panel (100) that emits light when excited by ultraviolet rays. The phosphor layer includes a blue phosphor (110B), and the blue phosphor is W An alkaline earth metal aluminate phosphor containing the above elements. [Selection] Figure 2 |