Patent ID: 8128840

Claim:
A phosphor composition for a display device, comprising: a first phosphor represented by Formula 1: Y 3-x-k-z Ce k M z M′ x Al a-y M″ y O (1.5a+4.5) (1) wherein, M includes at least one of Th, Dy, and Eu, M′ includes at least one of Sc, Gd, In, and La, M″ includes at least one of Ga, Sc, and In, and x, y, z, k, and a represent molar ratios and satisfy the relations: 0.0≦x≦3.0, 0.0≦y≦7.0, 0.0<k<0.1, 0.0<z<0.5, 4.0≦a≦7.0, a-y≧0.0, x+k+z≦3.0, and 0.01≦z/k≦20; and a second phosphor including at least one phosphor represented by the following Formulae 2 to 9: Zn 2-p Mn p SiO 4 (2) wherein p satisfies the relation: 0.01≦p≦0.60, YBO 3 :Tb (3) (Y,Gd) 1-q Tb q Al 3 (BO 3 ) 4 (4) wherein q satisfies the relation: 0.01≦q<0.50, BaMgAl 10 O 17 :Mn (5) BaMgAl 12 O 19 :Mn (6) Zn(Ga 1-r Al r ) 2 O4:Mn (7) wherein r satisfies the relation: 0≦r≦1, Li 2 Zn(Ge, θ) v O 8 :Mn (8) wherein θ includes Al or Ga, and v satisfies the relation: 3≦v≦4, (Y 3-w Ce w )Al 5 O 12 (9) wherein w satisfies the relation: 0≦w≦3.