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Process for producing optical element, optical element, optical films using optical element, and illuminator and liquid crystal display each using optical element or optical films
Process for producing optical element, optical element, optical films using optical element, and illuminator and liquid crystal display each using optical element or optical films
A process for producing an optical element which comprises a polymeric liquid crystal layer having a helically twisted molecular structure and has satisfactory thickness precision and satisfactory optical properties. The process comprises applying a mixed solution containing a polymerizable nematic liquid crystal compound and a polymerizable chiral reagent to an oriented substrate, followed by drying, to orient the liquid crystal compound; and irradiating the mixed solution applied with radiation from the oriented substrate side while maintaining the mixed solution in contact with a gas comprising oxygen to thereby polymerize and cure the mixed solution.
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