| 摘要 |
An electro-optic device includes a liquid crystal cell ( 10, 10 ') and at least one electrode ( 40, 42, 40', 42 ') arranged to selectively electrically bias the liquid crystal cell ( 10, 10 '). A chiral or cholesteric liquid crystal ( 30, 30 ') is disposed in the liquid crystal cell ( 10, 10 '). The liquid crystal ( 10, 10 ') has an optic axis substantially along a selected optic axis direction in the absence of an electrical bias. A polymeric network ( 32, 32', 72 ) is disposed at an inside surface of the liquid crystal cell ( 10, 10 '). The polymeric network ( 32, 32', 72 ) extends partway into the liquid crystal cell ( 10, 10 ') leaving at least a portion of the liquid crystal cell ( 10, 10 ') substantially free of the polymeric network ( 32, 32', 72 ).
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