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US 10,884,309 B2Granted
Transferable thin-film optical devices
AssigneeFacebook Technologies, LLC
InventorsLu Lu, Junren Wang, Scott McEldowney
Life of this patent
Estimating the term…
Abstract
A transferrable thin-film optical device and a head-mounted display are provided. A transferrable thin-film optical device comprises a thin-film layer providing at least one predetermined optical function. The thin-film layer is configured to be removably attached to a substrate, such that a molecular pattern for the at least one predetermined optical function of the thin-film layer is preserved post removal.
Claims18
A transferrable thin-film optical device, comprising:
- a substrate;
- and
- a thin-film liquid crystal layer structurally configured to have liquid crystal molecules aligned in a predetermined alignment pattern to provide at least one predetermined optical function,
- wherein the thin-film liquid crystal layer is configured to be removably attached to the substrate, such that the predetermined alignment pattern of the liquid crystal molecules of the thin-film liquid crystal layer is preserved post removal from the substrate, and
- wherein the thin-film liquid crystal layer is removably attached to the substrate through a soluble element, which is configured to be dissolved to separate the thin-film liquid crystal layer from the substrate when the thin-film liquid crystal layer is to be transferred to another substrate.
2 more elements
An optical system, comprising:
- a first optical device;
- and
- a second optical device that is a thin-film optical device attached to a surface of the first optical device, the thin-film optical device providing at least one predetermined optical function and comprising:
- a thin-film liquid crystal layer structurally configured to have liquid crystal molecules aligned in a predetermined alignment pattern to provide the at least one predetermined optical function,
- wherein the thin-film liquid crystal layer is configured to be removably attached to a substrate prior to being detached from the substrate and attached to the first optical device, wherein the predetermined alignment pattern of the liquid crystal molecules of the thin-film liquid crystal layer is maintained before and after removal from the substrate, and
- wherein the thin-film liquid crystal layer is removably attached to the substrate through a soluble element, which is configured to be dissolved to separate the thin-film liquid crystal layer from the substrate when the thin-film liquid crystal layer is transferred to the first optical device.
3 more elements
Dependencies are inferred from the claim text.