Phosphor composition and display device including the same

A display device, comprising:

• a display unit including a first phosphor represented by Formula 1:
• Y3−x−kCekM′xAla−yM″yO(1.5a+4.5) (1);
• and
• a second phosphor including at least one phosphor represented by Formulae 2 to 9:
• Zn2−pMnpSiO4 (2)
• YBO3:Tb (3)
• (Y,Gd)1−qTbqAl3(BO3)4 (4)
• BaMgAl12O17:Mn (5)
• BaMgAl12O19:Mn (6)
• Zn(Ga1−rAlr)2O4:Mn (7)
• Li2Zn(Ge,θ)vO8:Mn (8)
• (Y3−wCew)Al5O12 (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, k, and a 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,
• w satisfies the relation:
• 0≦w≦3.

A display device, comprising:

• a display unit including a first phosphor represented by Formula 1:
• Y3−x−kCekM′xAla−yM″yO(1.5a+4.5) (1),
• wherein, M′ includes at least one of Sc, In, and La, M″ includes at least one of Ga, Sc, and In, and x, y, k, and a 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 and
• the display device includes a device for realizing a three-dimensional stereoscopic image.