Electrically switchable polymer-dispersed liquid crystal materials
AssigneeScience Applications International Corporation
InventorsLalgudi V. Natarajan, Richard L. Sutherland, Vince P. Tondiglia, Timothy J. Bunning
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Abstract
A method for preparing electro-optical polymer-liquid crystal photonic crystals, comprising: disposing between at least two optically transparent electrode plates, a polymer-dispersed liquid crystal material that comprises, before exposure: (a) a polymerizable monomer comprising at least one acrylate; (b) a liquid crystal; (c) a chain-extending monomer; (d) a coinitiator; (e) a photoinitiator; and (f) a long chain aliphatic acid; and exposing this polymer-dispersed liquid crystal material to light in an interference pattern.
Claims20
A method for preparing electro-optical polymer-liquid crystal photonic crystals, comprising:
- disposing between at least two optically transparent electrode plates, a polymer-dispersed liquid crystal material that comprises, before exposure:
- (a) a polymerizable monomer comprising at least one acrylate;
- (b) a liquid crystal;
- (c) a chain-extending monomer;
- (d) a coinitiator;
- (e) a photoinitiator;
- and
- (f) a long chain aliphatic acid;
- and
- exposing this polymer-dispersed liquid crystal material to light in an interference pattern.
A method for preparing electro-optical polymer-liquid crystal photonic crystals, comprising:
- disposing between at least two optically transparent electrode plates, a polymer-dispersed liquid crystal material that comprises, before exposure:
- (a) a polymerizable monomer comprising multifunctional aliphatic and aromatic thiols;
- (b) an allyl ether or multifunctional acrylate;
- (c) a liquid crystal;
- and
- (d) a photoinitiator;
- and
- exposing this mixture to light in an interference pattern.
Dependencies are inferred from the claim text.