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US 11,921,393 B2Granted
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
Life of this patent
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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.
Claims19
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, wherein the surface pattern comprises regions that induce a first orientation of molecules in the monocrystalline liquid crystalline material and regions that a second orientation of molecules in the monocrystalline liquid crystalline material, wherein the first and second orientations are different.
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, wherein the surface comprises a second surface pattern that extends over a second area and a monocrystalline liquid crystalline material that extends over the second area, wherein the monocrystalline liquid crystalline material that extends over the first area has a first unit cell orientation, the monocrystalline liquid material that extends over the second area has a second unit cell orientation and is separated by the monocrystalline liquid material that extends over the first area by a single defect line.
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, wherein the monocrystalline liquid crystalline material overlies a surface that comprises patterned regions separated by an unpatterned region.
Dependencies are inferred from the claim text.