Laminate, optical element, and light guide element
AssigneeFUJIFILM Corporation
InventorsYuki FUKUSHIMA, Keisuke KODAMA, Shunya KATOH, Hideki KANEIWA
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AssigneeFUJIFILM Corporation
InventorsYuki FUKUSHIMA, Keisuke KODAMA, Shunya KATOH, Hideki KANEIWA
Estimating the term…
A first object of the present invention is to provide a laminate having excellent light resistance. In addition, a second object of the present invention is to provide an optical element including the laminate and a light guide element. A laminate of the present invention includes an optically anisotropic layer consisting of a cured layer of a composition containing a liquid crystal compound and a pair of oxygen barrier layers which are disposed on both sides of the optically anisotropic layer, in which the optically anisotropic layer has a liquid crystal alignment pattern in which an orientation of an optical axis derived from the liquid crystal compound is changed while continuously rotating along at least one in-plane direction, the composition contains a compound having a partial structure represented by Formula (I), the composition contains, as the liquid crystal compound, the compound having the partial structure represented by Formula (I), or the composition contains, as a compound which is not the liquid crystal compound, the compound having the partial structure represented by Formula (I), and an oxygen permeability coefficient of the oxygen barrier layer at 25° C. and 50% RH is 1.0×10−11 cm3·cm/(cm2·s·mmHg) or less. In Formula (I), A1 and A2 each independently represent an aromatic hydrocarbon ring group or an aromatic heterocyclic group, which may have a substituent. * represents a bonding position.
A laminate comprising:
Dependencies are inferred from the claim text.