Optical laminate, light guide element, and AR display device

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United States of America Patent

PATENT NO 12044913
APP PUB NO 20210223581A1
SERIAL NO

17226168

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Abstract

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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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Patent Owner(s)

Patent OwnerAddress
FUJIFILM CORPORATION26-30 NISHIAZABU 2-CHOME MINATO-KU TOKYO 1068620 JAPAN

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Saitoh, Yukito Minami-ashigara, JP 202 944
Sasata, Katsumi Minami-ashigara, JP 67 133
Sato, Hiroshi Minami-ashigara, JP 974 10580

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