METHOD FOR PRODUCING OPTICAL ELEMENT, AND OPTICAL ELEMENT

WIPO Patent Application WO/2020/022500

A1

The present invention provides: a method for producing an optical element, which is capable of forming an optically anisotropic layer that is suppressed in in-plane unevenness; and an optical element. A method for producing an optical element that comprises an optically anisotropic layer which is formed with use of a liquid crystal composition containing a liquid crystal compound, an alignment film which aligns the liquid crystal compound, and a supporting body. This method for producing an optical element comprises: an alignment film formation step wherein an alignment film is formed on one surface of a supporting body; and an optically anisotropic layer formation step wherein an optically anisotropic layer is formed on the alignment film. The alignment film contains a photo-alignment material; and the alignment film formation step comprises a light exposure step wherein different positions in the alignment film surface are exposed to light having different polarization directions. The supporting body has a reflection suppressing part which suppresses reflection of light in at least a part of the wavelength range of the light absorption band, where a photochemical reaction of the alignment film occurs, by having a surface of the supporting body, said surface being on the reverse side of the surface on which the alignment film is formed, irradiated with light that is polarized during the light exposure step.

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SATO HIROSHI (JP)
SAITOH YUKITO (JP)

PCT/JP2019/029503

January 30, 2020

July 26, 2019

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FUJIFILM CORP (JP)

G02B5/30; G02B1/11; G02B5/18

JP2008532085A	2008-08-14
JP2011039510A	2011-02-24
JP2013142727A	2013-07-22
JP2015025969A	2015-02-05
JP2010525395A	2010-07-22
JP2015532468A	2015-11-09

ITOH Hideaki et al. (JP)

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