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Title:
光学積層体、導光素子およびＡＲ表示デバイス
Document Type and Number:
Japanese Patent JP7166354
Kind Code:
B2
Abstract:
Provided are an optical laminate in which a large diffraction angle can be obtained, a light guide element, and an AR display device. The optical laminate includes, in the following order: a first optically-anisotropic layer that is formed of a composition including a liquid crystal compound and has a liquid crystal alignment pattern in which a direction of an optical axis derived from the liquid crystal compound changes while continuously rotating in at least one in-plane direction; a cholesteric liquid crystal layer that is obtained by immobilizing a cholesteric liquid crystalline phase; and a second optically-anisotropic layer that is formed of a composition including a liquid crystal compound and has a liquid crystal alignment pattern in which a direction of an optical axis derived from the liquid crystal compound continuously rotates in at least one in-plane direction, in which in the first optically-anisotropic layer and the second optically-anisotropic layer, the one in-plane directions in which the direction of the optical axis derived from the liquid crystal compound continuously rotates are the same, and rotation directions of the direction of the optical axis derived from the liquid crystal compound in the one in-plane direction are the same.

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Inventors:
Yuto Saito
Hiroshi Sato
Katsumi Shinoda
Application Number:
JP2020551185A
Publication Date:
November 07, 2022
Filing Date:
October 09, 2019
Export Citation:
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Assignee:
FUJIFILM Corporation
International Classes:
G02B5/30; G09F9/00
Domestic Patent References:
JP2017522601A
JP2001091944A
JP2010525394A
JP2000056115A
JP2012203123A
JP2003521742A
Foreign References:
WO2018094096A1
WO2018084076A1
WO2016133186A1
WO1998020391A1
Attorney, Agent or Firm:
Hideaki Ito
Fumio Mihashi



 
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