Patent ID: 8193696

Claim:
An oxynitride phosphor comprising: a compound represented by Formula 1: M 1 a-x M 2 x-y Ce y Si b-z Al z O c-x N x , Formula 1 wherein M 1 is at least one element selected from the group consisting of calcium, strontium, barium, magnesium, zinc, and europium, M 2 is at least one element selected from the group consisting of scandium, yttrium, lutetium, lanthanum, praseodymium, samarium, gadolinium, terbium, ytterbium, and dysprosium, a is about 1.7 to about 2.3, b is about 0.7 to about 1.3, c is about 3.5 to about 4.5, x is greater than 0 and less than about 2, y is greater than 0 and less than about 0.5, and z is equal to or greater than 0 and less than about 0.5.