Light-emitting diode package

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.