发明名称 |
Phosphor and light emitting device |
摘要 |
A phosphor and a light emitting device including the phosphor may be provided that emits light having a peak wavelength between a green wavelength band and a yellow wavelength band, has a crystal structure of which the chemical formula is MSi2N2O2, M=CaxSryEuz (x+y+z=1), and has a triclinic system crystal structure in which, when molar ratios of Ca, Sr and Eu are x, y and z respectively, x+y+z=1 and when the x, y and z are represented by a triangular projection, the x, y and z are distributed on the lines and at the inside of an area formed by connecting five points of (0.45, 0.55, 0), (0.75, 0.25, 0), (0.75, 0, 0.25), (0.5, 0, 0.5) and (0.45, 0.05, 0.5) by a solid line on a triangular diagram. |
申请公布号 |
US9365769(B2) |
申请公布日期 |
2016.06.14 |
申请号 |
US201313921689 |
申请日期 |
2013.06.19 |
申请人 |
LG INNOTEK CO., LTD. |
发明人 |
Kubota Shunichi;Tanaka Satoshi |
分类号 |
C09K11/77;H01L33/50;C09K11/59;C09K11/08 |
主分类号 |
C09K11/77 |
代理机构 |
KED & Associates, LLP |
代理人 |
KED & Associates, LLP |
主权项 |
1. A phosphor which emits light having a peak wavelength between a green wavelength band and a yellow wavelength band, has a crystal structure of which the chemical formula is MSi2N2O2, M=CaxSryEuz (x+y+z=1), and has a triclinic system crystal structure in which, when molar ratios of Ca, Sr and Eu are x, y and z respectively, x+y+z=1 and when the x, y and z are represented by a triangular projection, the x, y and z are distributed on the lines and at the inside of an area formed by connecting five points of (0.45, 0.55, 0), (0.75, 0.25, 0), (0.75, 0, 0.25), (0.5, 0, 0.5) and (0.45, 0.05, 0.5) by a solid line on a triangular diagram. |
地址 |
Seoul KR |