| abstract |
The present invention provides a phosphor sheet capable of preventing deterioration of a phosphor with an easy structure. The phosphor sheet of the present invention includes a water vapor barrier film (12, 13) and a phosphor layer (11) sandwiched between the water vapor barrier film (12, 13) and containing a sulfide-based phosphor. The ends of the water vapor barrier film (12, 13) are sealed with a cover member (14). This prevents water vapor from entering the phosphor layer (11) from the ends of the water vapor barrier films (12, 13), and prevents deterioration of the phosphor in the phosphor layer (11). |