Light emitting diode array containing metamaterial light collimating features and methods for forming the same
AssigneeSamsung Electronics Co., Ltd.
InventorHomer Antoniadis
Life of this patent
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Abstract
A light emitting device includes a backplane, first, second and third light emitting diodes located on the backplane, a first patterned metamaterial lens containing first nanostructures located over the first light emitting diode, a second patterned metamaterial lens containing second nanostructures located over the second light emitting diode, and a third patterned metamaterial lens containing third nanostructures located over the light emitting diode. A configuration of the first nanostructures differs from a configuration of the second nanostructures, and a configuration of the third nanostructures differs from the configurations of the first and the second nanostructures.
Claims20
A light emitting device, comprising:
- a backplane;
- a first light emitting diode, a second light emitting diode, and a third light emitting diode located on the backplane;
- a first patterned metamaterial lens comprising first nanostructures located over the first light emitting diode;
- a second patterned metamaterial lens comprising second nanostructures located over the second light emitting diode;
- a third patterned metamaterial lens comprising third nanostructures located over the third light emitting diode,
- wherein a configuration of the first nanostructures is different from a configuration of the second nanostructures, and a configuration of the third nanostructures is different from the configuration of the first nanostructures and the configuration of the second nanostructures, and
- wherein the first patterned metamaterial lens, the second patterned metamaterial lens, and the third patterned metamaterial lens comprise a same metamaterial;
- a transparent conductive material layer between the first patterned metamaterial lens, the second patterned metamaterial lens, and the third patterned metamaterial lens and the first light emitting diode, the second light emitting diode, and the third light emitting diode respectively;
- and
- each of the first light emitting diode, the second light emitting diode, and the third light emitting diode comprising a reflector, the reflector being electrically connected to a doped compound semiconductor portion through an opening in an insulating spacer, the insulating spacer providing electrical isolation between the doped compound semiconductor portion and an active layer of a respective light emitting diode.
Dependencies are inferred from the claim text.