| abstract |
Provided is a phosphor sheet which, by a simple configuration, is capable of preventing the deterioration of a phosphor. The phosphor sheet comprises water vapour barrier films (12, 13), and a phosphor layer (11) which is held between the water vapour barrier films (12, 13), and contains a sulphide-based phosphor. The end sections of the water vapour barrier films (12, 13) are sealed by a cover member (14). Thus, ingress of water vapour from the end sections of the water vapour barrier films (12, 13) to the phosphor layer (11) can be prevented, and deterioration of the phosphor in the phosphor layer (11) can be prevented. |