| 摘要 |
PROBLEM TO BE SOLVED: To provide a mercury-free electron-beam excited phosphor that shows deep ultraviolet light by irradiation with an electron beam.SOLUTION: An electron-beam excited phosphor at least comprises one or more metal element M selected from the group consisting of Y, Ca, Sr, Mg, Ba, Sc, B, and Ga, aluminum element, oxygen element, and Pr element, and shows deep ultraviolet light when excited with an electron beam.SELECTED DRAWING: Figure 1 |
