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US 12,736,716 B2Granted
Metalens array and display device having same
AssigneeChiun Mai Communication Systems, Inc.
InventorsAmir Hassan Firoozi, Chen-Sheng Hsu
Life of this patent
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Abstract
A metalens array and a display device are provided, the metalens array includes at least one optical transparent substrate; and a plurality of nanostructures arranged over the at least one optical transparent substrate, the plurality of nanostructures defining one or more metalenses, the one or more metalenses arranged in a predetermined arrangement, the at least one optical transparent substrate and the plurality of nanostructures configured to transmit lights.
Claims16
A metalens array comprising:
- at least one optical transparent substrate;
- a plurality of nanostructures arranged over the at least one optical transparent substrate, the plurality of nanostructures defining one or more metalenses, the one or more metalenses arranged in a predetermined arrangement, the at least one optical transparent substrate and the plurality of nanostructures configured to transmit lights, the plurality of nanostructures is a double-layer metallic nanostructure comprising a photoresist layer on the at least one optical transparent substrate and a metal layer on the photoresist layer;
- a reflective layer arranged on the at least one optical transparent substrate, wherein the reflective layer is plain and made of reflective metals;
- and
- a spacer layer arranged between the plurality of nanostructures and the reflective layer, wherein the spacer layer is plain and non-patterned and made of non-conductive materials.
2 more elements
A display device comprising:
- a micro display configured to display real images and illuminate lights;
- at least one metalens array embedded in a frame of the display device, the at least one metalens array spaced apart from the micro display, the at least one metalens array configured to transmit the lights illuminated by the micro display, the at least one metalens array comprising:
- at least one optical transparent substrate;
- a plurality of nanostructures arranged over the at least one optical transparent substrate, the plurality of nanostructures defining one or more metalenses, the one or more metalenses arranged in a predetermined arrangement, the at least one optical transparent substrate and the plurality of nanostructures configured to transmit lights, the plurality of nanostructures is a double-layer metallic nanostructure comprising a photoresist layer on the at least one optical transparent substrate and a metal layer on the photoresist layer;
- a reflective layer arranged on the at least one optical transparent substrate, wherein the reflective layer is plain and made of reflective metals;
- and
- a spacer layer arranged between the plurality of nanostructures and the reflective layer, wherein the spacer layer is plain and non-patterned and made of non-conductive materials.
4 more elements
Dependencies are inferred from the claim text.