Patent ID: 7964885

Claim:
A white light emitting device comprising: a blue light emitting diode chip having a dominant wavelength of 443 to 455 nm; a red phosphor disposed around the blue light emitting diode chip, the red phosphor excited by the blue light emitting diode chip to emit red light; and a green phosphor disposed around the blue light emitting diode chip, the green phosphor excited by the blue light emitting diode chip to emit green light, wherein the red light emitted from the red phosphor has a color coordinate falling within a space defined by four coordinate points (0.5448, 0.4544), (0.7079, 0.2920), (0.6427, 0.2905) and (0.4794, 0.4633) based on the CIE 1931 chromaticity diagram, wherein the green light emitted from the green phosphor has a color coordinate falling within a space defined by four coordinate points (0.1270, 0.8037), (0.4117, 0.5861), (0.4197, 0.5316) and (0.2555, 0.5030) based on the CIE 1931 color chromaticity diagram, further comprising a resin encapsulant encapsulating the blue light emitting diode chip, wherein the green phosphor and the red phosphor are dispersed in the resin encapsulant, wherein the green phosphor comprises at least one of silicate phosphor, SrGa 2 S 4 :Eu and β-SiAlON, and the red phosphor comprises at least one of nitride and sulfide phosphors.