Invention Grant
- Patent Title: Laminate and image display device
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Application No.: US17177547Application Date: 2021-02-17
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Publication No.: US11656393B2Publication Date: 2023-05-23
- Inventor: Naoya Shibata , Jun Takeda , Yuta Fukushima , Ayako Muramatsu
- Applicant: FUJIFILM Corporation
- Applicant Address: JP Tokyo
- Assignee: FUJIFILM Corporation
- Current Assignee: FUJIFILM Corporation
- Current Assignee Address: JP Tokyo
- Agency: Edwards Neils LLC
- Agent Jean C. Edwards, Esq.
- Priority: JP 2018159775 2018.08.28 JP 2019138194 2019.07.26
- Main IPC: G02B5/30
- IPC: G02B5/30 ; C08F116/06 ; C09D183/04

Abstract:
The present invention provides a laminate used in an image display device the laminate including an optically anisotropic layer, a light-absorbing anisotropic layer, a refractive index-adjusting layer, and an oxygen shielding layer in this order, where the light-absorbing anisotropic layer is formed of a composition containing dichroic azo coloring agent and liquid crystalline compounds, where the dichroic azo coloring agent compound is 10% to 30% by mass with respect to a mass of a total solid content of the light-absorbing anisotropic layer, a degree of alignment of the light-absorbing anisotropic layer is 0.92 or higher, the refractive index-adjusting layer is formed of a composition containing a crosslinkable group compound, and has an in-plane average refractive index of 1.55 to 1.70 (550 nm λ), and an angle formed by an in-plane slow axis of the optically anisotropic layer and an absorption axis of the light-absorbing anisotropic layer is 45°±10°.
Public/Granted literature
- US20210173135A1 LAMINATE AND IMAGE DISPLAY DEVICE Public/Granted day:2021-06-10
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