Blue phase liquid crystal polarization hologram comprising liquid crystal molecules having a spatially varying in-plane orientation pattern and device including the same
AssigneeMeta Platforms Technologies, LLC
InventorsYuge Huang, Nicholas John Diorio, Jr., Lu Lu
Life of this patent
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Abstract
A device includes a polymer stabilized blue phase liquid crystal (“PS-BPLC”) layer. The device also includes an alignment structure coupled with the PS-BPLC layer. LC molecules disposed in contact with the alignment structure are configured to have a spatially varying in-plane orientation pattern that is at least partially defined by the alignment structure. The PS-BPLC layer is configured to forwardly deflect a polarized light having a predetermined handedness, and transmit a polarized light having a handedness that is orthogonal to the predetermined handedness.
Claims20
A device, comprising:
- a polymer stabilized blue phase liquid crystal (“PS-BPLC”) layer;
- and
- an alignment structure coupled with the PS-BPLC layer,
- wherein LC molecules disposed in contact with the alignment structure are configured to have a spatially varying in-plane orientation pattern that is at least partially defined by the alignment structure, and
- wherein the PS-BPLC layer is configured to forwardly deflect a polarized light having a predetermined handedness, and transmit a polarized light having a handedness that is orthogonal to the predetermined handedness.
A system, comprising:
- a light source assembly configured to generate an image light representing a virtual image;
- and
- an optical combiner configured to receive the image light that is off-axis incident onto the image combiner, the optical combiner being configured to focus the image light to propagate through a plurality of sub-eyeboxes forming an uncompressed eyebox,
- wherein the optical combiner includes a polymer stabilized blue phase liquid crystal (“PS-BPLC”) layer and an alignment structure, and LC molecules disposed at a surface of the PS-BPLC layer are configured with a predetermined in-plane orientation pattern that is at least partially defined by the alignment structure.
A system, comprising:
- a light source assembly configured to output a light;
- and
- a light guide coupled with an in-coupling element and an out-coupling element, the in-coupling element being configured to couple the light received from the light source into the light guide as an in-coupled light, and the out-coupling element being configured to couple the in-coupled light out of the light guide as a plurality of output lights,
- wherein at least one of the in-coupling element or the out-coupling element includes a polymer stabilized blue phase liquid crystal (“PS-BPLC”) layer and an alignment structure, and
- wherein the PS-BPLC layer is configured to forwardly deflect a polarized light having a predetermined handedness, and transmit a polarized light having a handedness that is orthogonal to the predetermined handedness.
Dependencies are inferred from the claim text.