Patent ID: 7473939

Claim:
A light-emitting diode structure with transparent window covering layer of multiple films, comprising: (a) a light-emitting diode chip, including: a substrate; a first semiconductor layer positioned on the substrate; a plurality of active layers disposed on the first semiconductor layer; a second semiconductor layer disposed on the plurality of the active layers; a transparent electric conduction layer formed on a portion of the second semiconductor layer; a first electrode formed in electrical contact with said first semiconductor layer; and a second electrode formed in electrical contact with a portion of the second semiconductor layer and a portion of the transparent electric conduction layer; (b) a seal and package body covering the light-emitting diode chip; and (c) at least a first and second transparent covering layers positioned on the upper surface of said seal and package body within said transparent window, at least one of said first and second transparent covering layers containing a fluorescent powder; said at least first transparent covering layer having a low refractive index and being positioned in contact with said upper surface of said seal and package body; and said at least second transparent covering layer having a high refractive index and being positioned atop said at least first transparent covering layer.