Patent ID: 8137585

Claim:
A phosphor composition, comprising: a first phosphor represented by Formula 1: Y 3−x−k Ce k M′ x Al a−y M″ y O (1.5a+4.5) (1); and a second phosphor including at least one phosphor represented by Formulae 2 to 9: Zn 2−p Mn p SiO 4 (2) YBO 3 :Tb (3) (Y,Gd) 1−q Tb q Al 3 (BO 3 ) 4 (4) BaMgAl 10 O 17 :Mn (5) BaMgAl 12 O 19 :Mn (6) Zn(Ga 1−r Al r ) 2 O 4 :Mn (7) Li 2 Zn(Ge,θ) y O 8 :Mn (8) (Y 3−w Ce w )Al 5 O 12 (9) wherein, M′ includes at least one of Sc, In, and La, M″ includes at least one of Ga, Sc, and In, and x, y, a, and k satisfy the relations: 0.0≦x<3.0, 0.0<y≦7.0, 0.0<k<0.1, 4.0≦a≦7.0, a−y≧0.0, and x+k≦3.0, p satisfies the relation: 0.01≦p≦0.60, q satisfies the relation: 0.01≦q≦0.50, r satisfies the relations: 0≦r≦1, θ includes Al or Ga, and v satisfies the relation: 3≦v≦4, and w satisfies the relation: 0≦w≦3.