Patent ID: 8552439
Filing Date: 2013-10-08
Classification: F21L,F21V,F21Y,G02B,H01L

Abstract:
1. A light-emitting diode (LED) package comprising: a substrate; an LED chip disposed on the substrate; a polarizer disposed above the LED chip, wherein the polarizer is a wire-grid polarizer, and the wire-grid polarizer comprises: a transparent substrate; and a plurality of metal wires, each of the metal wires extending along a first direction, the metal wires being arranged along a second direction, the metal wires satisfying 0.2<d/λ<0.5, wherein d is a pitch of the metal wires along the second direction, and λ is a wavelength of a first light emitted by the LED chip; a fluorescent layer wrapping the LED chip, wherein the fluorescent layer converts the first light emitted by the LED chip into a second light, a wavelength of the first light is shorter than a wavelength of the second light, the metal wires satisfies 0.2<d/λ′<0.5, and λ′ is the wavelength of the second light; and a supporter disposed on the substrate for supporting the polarizer.