Optical dimming devices with chiral ferroelectric nematic liquid crystal
AssigneeMeta Platforms Technologies, LLC
InventorsChenrun Feng, Olga Vladimirovna Barykina-Tassa, Afsoon Jamali, Jonathan William Onorato, Jasmine Soria Sears, Gareth Valentine, Xi Wu
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Abstract
An optical device includes a first electrode and a medium that includes ferroelectric liquid crystals and chiral dopants. The medium is located adjacent to the first electrode. The optical device may also include a second electrode distinct and separate from the first electrode. The optical device may be used as an optical dimming device, controlling an amount light passing through the optical device based on a voltage gradient provided to the optical device.
Claims20
An optical device, comprising:
- a first electrode;
- and
- a medium that includes ferroelectric liquid crystals and chiral dopants, wherein the medium is located adjacent to the first electrode.
A method, comprising:
- providing, at a first time, a first voltage gradient between a first electrode and a second electrode distinct and separate from the first electrode, wherein a medium that includes ferroelectric liquid crystals and chiral dopants is located adjacent at least to the first electrode;
- and
- providing, at a second time mutually exclusive to the first time, a second voltage gradient less than the first voltage gradient between the first electrode and the second electrode.
Dependencies are inferred from the claim text.