| 摘要 |
A crystalline MgO layer (5) is provided in a position facing a discharge cell formed in a discharge space between the front and back substrates (1,6). The crystalline MgO layer includes magnesium oxide crystals caused to emit ultraviolet light with a peak wavelength of between 230nm and 250nm by the action of ultraviolet light emitted from xenon in a discharge gas. A phosphor layer (9) emits visible light by being excited by the ultraviolet light emitted from the magnesium oxide layer and the ultraviolet light emitted from the discharge gas. |
