| 摘要 |
<P>PROBLEM TO BE SOLVED: To obtain a phosphor that has a broad peak of light emitting spectrum in a range of green to red, excellent luminous efficiency and luminance. <P>SOLUTION: The phosphor is represented by general formula MmAaBbOoNn:Z (element M is one or more kinds of elements having a valence of bivalence; element A is one or more kinds of elements having a valence of trivalence; element B is one or more kinds of elements having a valence of tetravalence; O is oxygen; N is nitrogen; element Z is one or more kinds of activators; 2.5<(a+b)/m<4.5, 0<a/m<2.0, 2.0<b/m<4.0, 0<o/m<1.0, o<n, n=2/3m+a+4/3b-2/3o). <P>COPYRIGHT: (C)2007,JPO&INPIT |
