A white-light emitting device comprises a substrate, a short wavelength light source, a protective layer, a first structure, and a second structure. The short wavelength light source is disposed on the substrate for generating a first light, and the protective layer covering the short wavelength light...http://www.google.fr/patents/US7965028?utm_source=gb-gplus-shareBrevet US7965028 - White light emitting device and producing method thereof
White light emitting device and producing method thereof
