| 摘要 |
A crystalline magnesium oxide layer, including magnesium oxide crystals causing a cathode-luminescence emission having a peak within a wavelength range of 200 nm to 300 nm upon excitation by an electron beam, is provided between the front glass substrate and the back glass substrate, facing the discharge cells. The phosphor layer of any one of red, green and blue colors has a discharge timing adjusting function for giving rise to an approximate match between a timing of a discharge initiated in the green discharge cell and a timing of a discharge initiated in the red or blue discharge cell.
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