Patent ID: 9133393
Filing Date: 2015-09-15
Classification: C09K,H01L

Abstract:
1. An oxynitride-based phosphor, comprising; a host material represented by (Ca b/a ranges 0.5 to 7, c/(a+b) ranges 1.5 to 3.5, d/c ranges 1 to 1.8, e/(a+b) ranges 0.6 to 2, x ranges 0 to 0.5, and y ranges 0 to 0.5, the host material has a monoclinic crystalline structure; and at least one dissolved activator selected from the group consisting of Mn, Ce, Pr, Nd, Sm, Eu, Gd, Dy, Tb, Ho, Er, Tm and Yb, wherein, M1 being at least one element selected from Ba, Mg, Sr, Mn and Zn, and M2 being at least one element selected from Y, Lu, Sc, Gd, Tb, Ce, Nd, Sm, Dy, Ho, Er, Tm, Yb, Al, Ga, Ge, Sn and In, wherein the host material comprises a phase illustrating diffraction peaks in ranges of Bragg angles (2θ) of 10.68° to 11.41°, 18.52° to 19.46°, 31.58° to 31.21° and 36.81° to 37.49°, as a representative phase, and the diffraction peaks have relative intensity of greater than or equal to 5% when the relative intensity of the most intensive diffraction peak in a powder X-ray diffraction pattern is 100%, a crystalline structure of the representative phase being monoclinic.