- 专利标题: OPTICALLY ANISOTROPIC FILM, LAMINATE, CIRCULARLY POLARIZING PLATE, AND DISPLAY DEVICE
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申请号: US17400752申请日: 2021-08-12
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公开(公告)号: US20210382348A1公开(公告)日: 2021-12-09
- 发明人: Hideyuki NISHIKAWA , Ryoji GOTO , Yuuta FUJINO , Mirei ARAYASU , Yuki NAKAMURA
- 申请人: FUJIFILM Corporation
- 申请人地址: JP Tokyo
- 专利权人: FUJIFILM Corporation
- 当前专利权人: FUJIFILM Corporation
- 当前专利权人地址: JP Tokyo
- 优先权: JP2019-034593 20190227
- 主分类号: G02F1/1335
- IPC分类号: G02F1/1335 ; G02F1/13363 ; G02F1/1337 ; C09K19/38
摘要:
Provided is an optically anisotropic film exhibiting reverse wavelength dispersibility with excellent thickness-direction phase differences, a laminate, a circularly polarizing plate, and a display device. The optically anisotropic film of an embodiment of the present invention satisfies the following Requirements 1 to 4. Requirement 1: In a case of irradiation with P-polarized light and S-polarized light, which are linearly polarized light perpendicular to each other, from a direction inclined by 45° from a normal direction of a film surface of the optically anisotropic film, an absorption intensity ratio in a case of irradiation with S-polarized light to an absorption intensity in a case of irradiation with P-polarized light is 1.02 or more in an absorption intensity at a wavelength having a largest absorption in a wavelength range of 700 to 900 nm. Requirement 2: Re(550)
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