Photosensitive composition, optical element using the same, and method for manufacturing the same
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United States of America Patent
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Jul 20, 2010
Grant Date -
Apr 19, 2007
app pub date -
Mar 29, 2006
filing date -
Mar 30, 2005
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An optical element includes a supporting material, and a phase difference controlling functional layer provided on the supporting material and including a polymerized liquid crystal material cured to have a predetermined liquid crystal regularity. The phase difference controlling functional layer is formed by curing a photosensitive composition. The photosensitive composition includes at least a polymerizable liquid crystal material, a photopolymerization initiator, a crosslinking agent, an acid generator, and a solvent. The crosslinking agent is an alcohol having at least two alkylol groups thereon and undergoing electrophilic substitution onto an aromatic ring, or an alkoxy compound having at least two alkoxy groups thereon and undergoing electrophilic substitution onto an aromatic ring.
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