Patent ID: 8044410

Claim:
A light conversion layer, used in a white light-emitting diode to convert the blue light emitted from a In—Ga—N heterojunction into white light and based on phosphor powder and inorganic silicon polymer which has a molecular weight of M=15,000˜25,000 carbon units with a mass ratio of 15˜55% to the inorganic phosphor powder polymer and is solidified in a certain period at a specific temperature; wherein the phosphor powder is inorganic phosphor powder activated by cerium and is added with fluorine ions to substitute oxygen atoms in the crystal to have a stoichiometric formula: (ΣLn) 3 Al 5 O 12-x F 2x , wherein ΣLn is selected from a group consisting of Y, Gd, Lu, Tb, Ce and Pr and any combination thereof, and 0.001≦×≦1.5.