Blue phases on patterned surfaces
AssigneeThe University of Chicago
InventorsJuan Jose de Pablo, Paul Franklin Nealey, Xiao Li, Jose A. Martinez-Gonzalez, Monirosadat Sadati, Rui Zhang, Ye Zhou
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Abstract
Stable, macroscopic single-crystal chiral liquid crystal compositions are described. The compositions include a single-crystal chiral liquid crystal material on a patterned surface. The patterned surface seeds a particular crystallographic orientation at the substrate-liquid crystal interface. Also described are methods of forming the single-crystal chiral liquid crystal compositions.
Claims34
An article comprising:
- a substrate having a surface, wherein the surface is patterned with a surface pattern that extends over a first area;
- a monocrystalline liquid crystalline material that extends over the first area.
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A liquid crystal cell comprising:
- a first substrate having a first substrate surface having a first surface pattern;
- a second substrate having a second substrate surface;
- and
- a liquid crystalline material disposed between the first and second substrate surfaces, characterized in the liquid crystalline material has no grain boundaries where it overlies the first surface pattern.
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A method comprising:
- providing a first substrate having a surface pattern that extends over a first area;
- providing a second substrate;
- disposing a liquid crystal mixture between the first substrate and the second substrate such that the liquid crystal mixture contacts the surface pattern;
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- allowing the surface pattern to direct the self-assembly of the liquid crystal material to form a monocrystalline liquid crystal over the surface pattern.
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Dependencies are inferred from the claim text.