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US 12,516,243 B2Granted
Liquid crystal formulation for pixelated local dimming
AssigneeMeta Platforms Technologies, LLC
InventorsGareth John Valentine, Wetthasinhage Sameera Kelum Perera, Md Mostafa, Xi Wu, Paige Gottschalk, Rahul Agarwal, Kai-Han Chang, Jr., Nicholas John Diorio, Jr.
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Abstract
A polymer-stabilized liquid crystal (PSLC) composition includes a liquid crystal component having high dielectric constant, a chiral dopant, a stabilizing polymer, and a photo-initiator. Through the application of an applied voltage, the polymer-stabilized liquid crystal composition may be implemented to induce pixelated dimming in an AR display.
Claims20
A liquid crystal formulation comprising:
- a liquid crystal component;
- wherein the liquid crystal component comprises a ferroelectric material in an amount ranging from greater than 0 wt. % up to 10 wt. %;
- a chiral dopant;
- a stabilizing polymer;
- and
- a photo-initiator.
3 more elements
A liquid crystal formulation comprising:
- a liquid crystal component;
- wherein the liquid crystal component comprises a ferroelectric material in an amount ranging from greater than 0 wt. % up to 10 wt. %;
- a chiral dopant;
- a stabilizing polymer;
- and
- a photo-initiator, wherein the liquid crystal component has a dielectric constant of at least 30 at 1 KHz, a dielectric anisotropy (Δε) of at least 10, and a birefringence (Δn) of at least 0.2.
3 more elements
A method comprising:
- forming a primary electrode;
- forming a layer of a liquid crystal formulation over the primary electrode;
- and
- forming a secondary electrode over the layer of the liquid crystal formulation, wherein the liquid crystal formulation comprises:
- a liquid crystal component;
- wherein the liquid crystal component comprises a ferroelectric material in an amount ranging from greater than 0 wt. % up to 10 wt. %;
- a chiral dopant;
- a stabilizing polymer;
- and
- a photo-initiator.
7 more elements
Dependencies are inferred from the claim text.