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公开(公告)号：US20230305209A1
公开(公告)日：2023-09-28
申请号：US18327736
申请日：2023-06-01
Applicant: FUJIFILM Corporation
Inventor： Yuki NAKAMURA , Shuntaro IBUKI
IPC: G02B5/30 , G02F1/1337
CPC classification number: G02B5/3016 , G02F1/133719 , H10K59/8793
Abstract: An optical laminate includes two optically anisotropic layers, an A-plate and a C-plate, in which the adhesiveness between the layers, the liquid crystal alignment of the C-plate, and the adhesiveness between the A-plate and a pressure-sensitive adhesive, are excellent. The optical laminate includes first and second optically anisotropic layers which are A-plate and C-plate formed of a first and second liquid crystal compound, respectively, and a mixed layer disposed between the layers, including components derived from the first and second liquid crystal compounds, and an optical alignment compound, in which a surface energy of the first optically anisotropic layer on a side opposite to the mixed layer is 25 mN/m or more, and where a component in a depth direction is analyzed with time-of-flight type secondary ion mass spectrometry while irradiating ion beams from a surface of the optical laminate on the first, toward the second, optically anisotropic layer.
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公开(公告)号：US20220213384A1
公开(公告)日：2022-07-07
申请号：US17697526
申请日：2022-03-17
Applicant: FUJIFILM Corporation
Inventor： Shunya KATOH , Hiroshi INADA , Masaaki SUZUKI , Yuki NAKAMURA
Abstract: Provided is a polymerizable liquid crystal composition with which an image display device having an excellent contrast can be manufactured; and a cured product, an optical film, a polarizing plate, and an image display device. The polymerizable liquid crystal composition contains a compound represented by Formula (I). L1-SP1-D5-(A1)a1-D3-(G1)g1-D1-[Ar-D2]q1-(G2)g2-D4-(A2)a2-D6-SP2-L2 . . . (I), and a compound represented by Formula (II), L5-SP5-D9-(A5)a3-D10-(G3)g3-D11-M . . . (II).
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公开(公告)号：US20240361507A1
公开(公告)日：2024-10-31
申请号：US18770376
申请日：2024-07-11
Applicant: FUJIFILM Corporation
Inventor： Yuki NAKAMURA , Katsufumi OHMURO
IPC: G02B5/30 , C09J7/38 , G02F1/1335 , H10K59/80
CPC classification number: G02B5/305 , C09J7/38 , G02F1/133528 , H10K59/8791 , C09J2203/318 , C09J2203/326 , C09J2301/302
Abstract: An optical laminate having a barrier layer having excellent adhesiveness to a pressure sensitive adhesive layer, a polarizing plate, and an image display device. The optical laminate has a film substrate, a barrier layer, and a pressure sensitive adhesive layer in this order, in which the barrier layer is formed of a composition for forming a barrier layer, containing a monomer having a polymerizable group, and satisfies Condition 1: a functional group that reacts with a hydroxyl group to form a covalent bond is present on a surface of the barrier layer on a pressure sensitive adhesive layer side and Condition 2: no hydroxyl group other than the hydroxyl group included in the functional group is present in a region from the surface of the barrier layer on the pressure sensitive adhesive layer side to a half of a thickness of the barrier layer.
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公开(公告)号：US20230296820A1
公开(公告)日：2023-09-21
申请号：US18322299
申请日：2023-05-23
Applicant: FUJIFILM Corporation
Inventor： Yuki NAKAMURA , Shuntaro IBUKI
IPC: G02B5/30 , G02F1/1335 , H10K59/80 , C09K19/04
CPC classification number: G02B5/3083 , G02B5/3016 , G02B5/305 , G02F1/133528 , H10K59/8793 , C09K19/04 , C09K2019/0448
Abstract: Provided is a polarizing plate having an excellent adhesiveness between a polarizer and an optical film and having good durability; and an image display device having the same. The polarizing plate includes a polarizer, an adhesive layer, and an optical film exhibiting reverse wavelength dispersibility, adjacent to each other in this order, in which the adhesive layer is a layer formed of an adhesive composition containing a polymerizable compound and a polymerization initiator, and the polarizing plate satisfies Condition 1: a maximum absorption wavelength of the polymerization initiator is within ±70 nm of a minimum absorption wavelength of the optical film and Condition 2: a molar absorption coefficient of the polymerization initiator is 22,000 mol−1Lcm−1 or more.
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5.发明公开公开(公告)号：US20230183574A1
公开(公告)日：2023-06-15
申请号：US18166910
申请日：2023-02-09
Applicant: FUJIFILM Corporation
Inventor： Toshikazu SUMI , Tatsuya IWASAKI , Yuki NAKAMURA
CPC classification number: C09K19/3491 , C09K19/54 , C09K19/2028 , C09K19/3497 , C09K2019/2078 , C09K2019/205
Abstract: Provided is a liquid crystal composition capable of suppressing a decrease in phase transition temperature from a smectic phase to a nematic phase and suppressing alignment defects in a liquid crystal cured layer thus formed, a liquid crystal cured layer, an optical film, a polarizing plate, and an image display device. The liquid crystal composition includes a liquid crystal compound exhibiting a smectic phase and a freezing point depressant, in which the liquid crystal compound is a compound represented by Formula (I) SP1-MG-SP2, and the liquid crystal composition satisfies Expression (1) |Am−Asl≥0.2 and Expression (2-1) in a case of Am≤As, Aa≥(Am+As)/2 or Expression (2-2) in a case of Am>As, Aa≤(Am+As)/2.
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Patent Agency Ranking
公开(公告)号：US20220381953A1
公开(公告)日：2022-12-01
申请号：US17878873
申请日：2022-08-01
Applicant: FUJIFILM Corporation
Inventor： Kazushige NAKAGAWA , Hideyuki NISHIKAWA , Masato NAKAO , Shunya KATOH , Hiroyuki HAGIO , Yutaka NOZOE , Kunihiro KASEZAWA , Yuki NAKAMURA
Abstract: The present invention provides an optical film having a liquid crystal layer having excellent durability, and a liquid crystal film. The optical film of the present invention has an organic base material and a liquid crystal layer disposed on the organic base material, the liquid crystal layer contains a photo-alignment compound, and in the liquid crystal layer, the photo-alignment compound is unevenly distributed on a side of the organic base material.
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公开(公告)号：US20220228064A1
公开(公告)日：2022-07-21
申请号：US17701161
申请日：2022-03-22
Applicant: FUJIFILM Corporation
Inventor： Masaaki SUZUKI , Yuki NAKAMURA , Shunya KATOH , Hiroshi INADA , Yuki FUKUSHIMA
Abstract: Provided is an optically anisotropic layer having an excellent surface condition, with which an image display device having an excellent contrast can be manufactured; and an optical film, a polarizing plate, and an image display device, each having the optically anisotropic layer. The optically anisotropic layer is obtained by immobilizing a polymerizable liquid crystal composition including a polymerizable rod-shaped liquid crystal compound exhibiting a liquid crystal state of a smectic phase and an additive in a liquid crystal state of a smectic phase, in which a molecular length A (Å) of the polymerizable rod-shaped liquid crystal compound, a layer interval B (Å) of the smectic phase of the optically anisotropic layer, and a molecular length C (Å) of the additive satisfy a relationship of Expression (1-1), 0.5×B≤C≤0.6×A . . . (1-1).
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公开(公告)号：US20220220381A1
公开(公告)日：2022-07-14
申请号：US17701127
申请日：2022-03-22
Applicant: FUJIFILM Corporation
Inventor： Yuki NAKAMURA , Masaaki SUZUKI
IPC: C09K19/04 , G02F1/1333 , G02F1/137 , G02F1/1335 , C09K19/02
Abstract: Provided is an optically anisotropic layer in which the occurrence of a haze is suppressed and a winding aptitude is excellent; and an optical film, a polarizing plate, and an image display device, each having the optically anisotropic layer. The optically anisotropic layer is obtained by polymerizing a polymerizable liquid crystal composition containing a polymerizable liquid crystal compound, in which in a case where an amplitude value at each wavelength determined by subjecting data of a three-dimensional surface roughness to a Fourier transform is defined as L, the amplitude value L at a wavelength of 5.0 μm or more is 0.125 or more, and the amplitude value L at a wavelength of 2.0 to 2.5 μm is 0.025 or less.
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公开(公告)号：US20200292861A1
公开(公告)日：2020-09-17
申请号：US16885755
申请日：2020-05-28
Applicant: FUJIFILM Corporation
Inventor： Tatsuya IWASAKI , Yuki NAKAMURA , Katsufumi OHMURO
IPC: G02F1/13363 , G02F1/1335
Abstract: The present invention provides a liquid crystal display device which is capable of achieving both reduction in thickness of a device and improvement of display performance such as prevention of light leakage, suppression of display unevenness in a hot and humid environment, and suppression of a change in display performance. The liquid crystal display of the present invention includes at least a first polarizer, a second optically anisotropic layer, a first optically anisotropic layer, a liquid crystal cell, and a second polarizer in this order, in which the first optically anisotropic layer satisfies predetermined Re (550) and Rth (550), the second optically anisotropic layer satisfies predetermined Re (550) and Rth (550), and the film thickness of the first optically anisotropic layer and the second optically anisotropic layer in a laminated form is 8 μm or less.
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公开(公告)号：US20210382348A1
公开(公告)日：2021-12-09
申请号：US17400752
申请日：2021-08-12
Applicant: FUJIFILM Corporation
Inventor： Hideyuki NISHIKAWA , Ryoji GOTO , Yuuta FUJINO , Mirei ARAYASU , Yuki NAKAMURA
IPC: G02F1/1335 , G02F1/13363 , G02F1/1337 , C09K19/38
Abstract: 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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