Nanostructured flat lenses for display technologies
AssigneeApplied Materials, Inc.
InventorsRobert Jan Visser, Avishek Ghosh
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Abstract
Embodiments described herein relate to display devices, e.g., virtual and augmented reality displays and applications. In one embodiment, a planar substrate has stepwise features formed thereon and emitter structures formed on each of the features. An encapsulating layer is disposed on the substrate and a plurality of uniform dielectric nanostructures are formed on the encapsulating layer. Virtual images generated by the apparatus disclosed herein provide for improved image clarity by reducing chromatic aberrations at an image plane.
Claims20
A display apparatus, comprising:
- a substrate;
- a first pixel formed on the substrate;
- a first nanolens disposed on the first pixel;
- a second pixel formed on the substrate;
- a second nanolens disposed on the second pixel;
- a third pixel formed on the substrate;
- and
- a third nanolens disposed on the third pixel, wherein each of the first pixel, the second pixel, and the third pixel has a substantially uniform size and distribution across the substrate.
A display apparatus, comprising:
- a substrate;
- a red light pixel formed on the substrate;
- a first nanolens disposed on the red light pixel;
- a blue light pixel formed on the substrate;
- a second nanolens disposed on the blue light pixel;
- a green light pixel formed on the substrate;
- and
- a third nanolens disposed on the green light pixel, wherein each of the red light pixel, the blue light pixel, and the green light pixel have a unique size and uniform distribution across the substrate.
A display apparatus, comprising:
- a substrate;
- a first pixel formed on the substrate;
- a first nanolens disposed on the first pixel, the first nanolens comprising first dielectric nanostructures adapted to compensate for an optical path length of red light at an image plane;
- a second pixel formed on the substrate;
- a second nanolens disposed on the second pixel, the second nanolens comprising second dielectric nanostructures adapted to compensate for an optical path length of blue light at the image plane;
- a third pixel formed on the substrate;
- and
- a third nanolens disposed on the third pixel, the third nanolens comprising third dielectric nanostructure adapted to compensate for an optical path length of green light at the image plane.
Dependencies are inferred from the claim text.