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Title:
OPTICAL LAMINATE, LIGHT GUIDE ELEMENT, AND IMAGE DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/060528
Kind Code:
A1
Abstract:
Provided are an optical laminate, a light guide element, and an image display device that can suppress the occurrence of crosstalk and can suppress the occurrence of multiple images. A cholesteric liquid crystal layer formed by fixing cholesteric liquid crystal phases has first and second cholesteric liquid crystal layers having liquid crystal orientation patterns in which the orientation of an optical axis derived from a liquid crystal compound changes while continuously rotating along at least one direction in the plane. In the first and second cholesteric liquid crystal layers, the turning direction of reflected circularly polarized light is a reverse direction. The helical pitches P1 and P2 of the first and second cholesteric liquid crystal layers are P1

Inventors:
SASATA KATSUMI (JP)
SATO HIROSHI (JP)
SAITOH YUKITO (JP)
Application Number:
PCT/JP2020/036425
Publication Date:
April 01, 2021
Filing Date:
September 25, 2020
Export Citation:
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Assignee:
FUJIFILM CORP (JP)
International Classes:
G02B5/30; G02B27/02; G02F1/1335; H01L51/50; H05B33/02
Domestic Patent References:
WO2019131966A12019-07-04
WO1998020391A11998-05-14
Foreign References:
JP2010525394A2010-07-22
JP2000056115A2000-02-25
Attorney, Agent or Firm:
ITOH Hideaki et al. (JP)
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