| abstract |
A light emitting device having a wide color gamut capable of expanding a color reproduction range is provided. A red light emitting phosphor having one or more nitride phosphors selected from (I) and (II), and two or more green light emitting phosphors represented by (III) and (IV) Including. M w Al x Si y B z N ((2/3) w + x + (4/3) y + z): Eu 2+ (I) (M is selected from Mg, Ca, Sr, and Ba, 0.5 ≦ w ≦ 3, x = 1, 0.5 ≦ y ≦ 3, 0 ≦ z ≦ 0.5) M p Si q N ((2/3) p + (4/3) q) : Eu 2+ (II) (M is selected from Mg, Ca, Sr, and Ba, 1.5 ≦ p ≦ 2.5, 4.5 ≦ q ≦ 5.5) M x MgSi z O a X b : Eu 2+ (III) (M is selected from Ca, Sr, Ba, Zn and Mn, X is selected from F, Cl, Br and I, 6.5 ≦ x <8.0, 3.7 ≦ z ≦ 4.3, a = X + 1 + 2z−b / 2, 1.0 ≦ b ≦ 1.9) Si c Al d O f N g : Eu 2+ (IV) (C + d = 6, 5.0 ≦ c <6, 0 <d ≦ 1.0, 0.001 <f ≦ 1, 7 ≦ g <8) [Selection] Figure 13 |