Electrically switchable polymer-dispersed liquid crystal materials
First Claim
Patent Images
1. 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.
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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.
194 Citations
20 Claims
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1. A method for preparing electro-optical polymer-liquid crystal photonic crystals, comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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8. A method for preparing electro-optical polymer-liquid crystal photonic crystals, comprising:
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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.
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Specification