Title:
OPTICAL MULTILAYER BODY, POLARIZING PLATE, AND IMAGE DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/167075
Kind Code:
A1
Abstract:
The present invention provides: an optical multilayer body which exhibits excellent adhesion between two optically anisotropic layers, while having an optically anisotropic layer serving as an A plate or a layer to which a twisted alignment liquid crystal phase is fixed, said layer having excellent liquid crystal alignment properties; a polarizing plate; and an image display device. An optical multilayer body according to the present invention comprises: a first optically anisotropic layer that is formed using a first liquid crystal compound; a second optically anisotropic layer that is formed using a second liquid crystal compound; and a mixed layer that is arranged between the first optically anisotropic layer and the second optically anisotropic layer, while containing a component derived from the first liquid crystal compound and a component derived from the second liquid crystal compound. The first optically anisotropic layer serves as a C plate; the second optically anisotropic layer serves as an A plate, or a layer to which a twisted alignment liquid crystal phase is fixed; the mixed layer additionally contains a photo-alignment compound; and a specific requirement is satisfied if the components of the optical multilayer body in the depth direction are analyzed by time-of-flight secondary ion mass spectrometry, while irradiating the optical multilayer body with an ion beam from the first optically anisotropic layer-side surface toward the second optically anisotropic layer side.
Inventors:
NOZOE YUTAKA (JP)
KASEZAWA KUNIHIRO (JP)
IIJIMA KOJI (JP)
KASEZAWA KUNIHIRO (JP)
IIJIMA KOJI (JP)
Application Number:
PCT/JP2021/006404
Publication Date:
August 26, 2021
Filing Date:
February 19, 2021
Export Citation:
Assignee:
FUJIFILM CORP (JP)
International Classes:
G02B5/30; G02F1/13363; H01L27/32; H01L51/50; H05B33/02
Domestic Patent References:
| WO2014156981A1 | 2014-10-02 |
Foreign References:
| JP2019522245A | 2019-08-08 | |||
| JP2016085424A | 2016-05-19 | |||
| JP2006215221A | 2006-08-17 | |||
| JP2019015981A | 2019-01-31 |
Attorney, Agent or Firm:
ITOH Hideaki et al. (JP)
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