Materials for promoting alignment of liquid crystals on SiOx and other substrates
AssigneeKent State University
InventorsCheng Chen, Philip J. Bos, James E. Anderson
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Abstract
The present invention relates to a liquid crystal alignment agent, a liquid crystal device produced by using the liquid crystal alignment agent thereof, and a method for alignment of liquid crystal molecules by using the liquid crystal alignment agent. In more detail, the present embodiments relates to a novel liquid crystal alignment agent used in a method of aligning liquid crystal molecules, wherein the agent includes a molecule having a highly polar functional group grafted onto an end of the molecule.
Claims14
A liquid crystal device comprising:
- a first substrate and a second substrate;
- a layer of liquid crystal material positioned between said substrates;
- and
- electrodes for applying an electric field across at least a portion of said liquid crystal material;
- wherein said liquid crystal material comprises a liquid crystal having negative dielectric anisotropy and a liquid crystal alignment agent comprising at least one of:
A method for preparing a vertically aligned liquid crystal display wherein a liquid crystal is homeotropically aligned at zero applied voltage, the method including the steps of:
- providing first and second substrates, providing first and second electrodes for inducing a voltage across said substrates, and providing a liquid crystal material between said substrates, wherein the liquid crystal material includes a liquid crystal having negative dielectric anisotropy and a liquid crystal alignment agent comprising at least one of:
A liquid crystal device comprising:
- a first substrate and a second substrate;
- a layer of liquid crystal material positioned between said substrates;
- and
- electrodes for applying an electric field across at least a portion of said liquid crystal material;
- wherein said liquid crystal material comprises a liquid crystal having negative dielectric anisotropy and an alignment agent comprising at least one compound selected from the group consisting of:
Dependencies are inferred from the claim text.