Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
July 12, 2011
Patent Application Number
12508941
Date Filed
July 24, 2009
Patent Primary Examiner
Patent abstract
The invention provides a liquid crystal layer in which an additive containing an aliphatic organic compound including at least one carbon-carbon double bond is added to a cholesteric liquid crystal in an amount of approximately 3 wt % or more and approximately 10 wt % or less.
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