Stock material or miscellaneous articles – Liquid crystal optical display having layer of specified... – Alignment layer of specified composition
Reexamination Certificate
2007-11-13
2007-11-13
Wu, Shean C (Department: 1756)
Stock material or miscellaneous articles
Liquid crystal optical display having layer of specified...
Alignment layer of specified composition
C252S299100, C252S299200
Reexamination Certificate
active
10920551
ABSTRACT:
An aligned film comprises a dried mixture of a lyotropic chromonic liquid crystal material and a dopant selected from the group consisting of dyes having a molecular weight within one order of magnitude of the liquid crystal material and block co-polymers. An example of an aligned film may be transparent to visible light but not transparent to polarized light in the ultraviolet and/or infra-red portions of the electromagnetic spectrum. A method of making an aligned lyotropic chromonic liquid crystal-based film comprises providing a mixture of a lyotropic chromonic liquid crystal material and a dopant in a solvent for the liquid crystal material, applying the mixture to a substrate, and removing the solvent to produce an aligned lyotropic chromonic liquid crystal-based film.
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Golovin Andrii
Lavrentovich Oleg
Lee Jong-Chan
Schneider Tod
Cunniff John J.
Hahn Loeser & Parks LLP
Kent State University
Wu Shean C
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