Stock material or miscellaneous articles – Liquid crystal optical display having layer of specified... – With viewing layer of specified composition
Reexamination Certificate
2008-07-01
2008-07-01
Morris, Terrel (Department: 1794)
Stock material or miscellaneous articles
Liquid crystal optical display having layer of specified...
With viewing layer of specified composition
C252S585000, C252S299010, C349S115000, C349S176000
Reexamination Certificate
active
10542017
ABSTRACT:
A broad band cholesteric liquid crystal film of the present invention is a cholesteric liquid crystal film obtained by coating a liquid crystal mixture containing a polymerizable mesogen compound (a), a polymerizable chiral agent (b) and a photoisomerizable material (c) on a substrate to ultraviolet polymerize a coat of the liquid crystal mixture, and has a reflection bandwidth of 200 nm or more. A broad band cholesteric liquid crystal film of the present invention has a broad reflection band, is of a thin type and can be manufactured in less of manufacturing steps.
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Hara Kazutaka
Takahashi Naoki
Takeda Kentarou
Hon Sow-Fun
Morris Terrel
Nitto Denko Corporation
Westerman, Hattori, Daniels & Adrian , LLP.
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