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公开(公告)号：US12110439B2
公开(公告)日：2024-10-08
申请号：US17289501
申请日：2019-11-01
发明人： Tatsuaki Kasai , Nobuyuki Hatanaka
CPC分类号： C09K19/601 , C09K19/3857 , C09K19/3861 , C09K19/56 , G02B5/3016 , H10K50/865
摘要： A laminate including a vertically oriented liquid crystal cured film and a horizontally oriented phase difference film is provided. The vertically oriented liquid crystal cured film is a cured product of a polymerizable liquid crystal composition containing a polymerizable liquid crystal compound and a dichroic coloring matter. The composition includes, as the dichroic coloring matter, at least one type of dichroic coloring matter having maximum absorption between a wavelength of 400 nm and a wavelength of 750 nm. The vertically oriented liquid crystal cured film is a cured product of the polymerizable liquid crystal composition that is cured in a state in which the polymerizable liquid crystal compound is oriented in a vertical direction with respect to a flat plane of the liquid crystal cured film, and satisfies the following formula (1) and the following formula (2):
0.001≤AxC≤0.3 (1);
AxC(z=60)/AxC>2 (2).-
公开(公告)号：US11976233B2
公开(公告)日：2024-05-07
申请号：US17629086
申请日：2020-06-22
发明人： Keisuke Takahashi
CPC分类号： C09K19/601 , C09B29/0846 , C09K19/3857 , G02B5/3016
摘要： A composition contains a compound of formula (1), and a polymerizable liquid crystal compound or a liquid crystalline polymer compound. n represents 1 or 2; Ar1, Ar2, and Ar3 each represent a 1,4-phenylene group or a divalent sulfur-containing aromatic heterocyclic group; At least one of Ar1 and Ar2 has a fluorine atom; R1 represents a single bond or a group selected from —OC(═O)—, —C(═O)O—, —C≡C—, —CH═CH—, —CH═N—, —N═N—, and —N═CH—; R2 represents an alkylamino group or an alkoxy group; R3 represents a group selected from an alkanediyl group, an alkanediyloxy group, an alkanediyloxycarbonyl group, and an alkanediylcarbonyloxy group; and R4 represents a polymerizable group or a hydrogen atom.
R4—R3—Ar1—(—R1—Ar2—)n—N═N—Ar3—R2 (1)-
公开(公告)号：US20240084197A1
公开(公告)日：2024-03-14
申请号：US18318969
申请日：2023-05-17
发明人： Gi Heon KIM , Won Jae LEE
IPC分类号： C09K19/60 , C09K19/54 , G02F1/1333 , G02F1/1343 , G02F1/139
CPC分类号： C09K19/601 , C09K19/544 , G02F1/133345 , G02F1/134309 , G02F1/139 , G02F2202/04
摘要： Provided is a display device including a first display, the first display includes a first substrate, a first electrode on the first substrate, a second electrode on the first electrode, a second substrate on the second electrode, and a liquid crystal layer disposed between the first electrode and the second electrode, the liquid crystal layer includes a liquid crystal and a black dye, and the black dye includes at least one of a first black dye, a second black dye, and a third black dye. The first black dye is a compound in which three naphthalene rings are connected via two azo groups, the second black dye is a compound in which two naphthalene rings and one aromatic group are connected via two azo groups, and the third black dye is a compound in which three naphthalene rings and one aromatic group are connected via three azo groups.
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公开(公告)号：US20240052243A1
公开(公告)日：2024-02-15
申请号：US18267846
申请日：2021-12-16
发明人： Kohei Ohtani , Saori Suzuki , Kanae Ogawa , Takashi Yoshimoto , Yu Hattori
IPC分类号： C09K19/32 , C09K19/60 , G02F1/1337
CPC分类号： C09K19/322 , C09K19/60 , G02F1/133788 , C09K2019/325
摘要： The present invention pertains to: a liquid crystal composition for controlling light that contains, as a dichroic dye, an anthraquinone compound having a specific structure; and a light-controlling element that contains a cured product of said liquid crystal composition for controlling light and exhibits excellent contrast, light-blocking performance, lightfastness, and heat tolerance during current supply. More specifically, the present invention pertains to: a liquid crystal composition for controlling light that contains a compound represented by formula (A) (in the formula. R1 represents a C1-12 alkyl group or a C1-12 alkoxy group, and each R2 independently represents a C1-8 alkyl group), a liquid crystal material, a photocurable compound, and a photoinitiator; and a light-controlling element that is formed by sandwiching a photocured product of said composition between a pair of substrates.
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5.发明公开公开(公告)号：US20230340268A1
公开(公告)日：2023-10-26
申请号：US18012254
申请日：2021-06-01
发明人： Kohei Ohtani , Hitomi Muto , Saori Suzuki , Takashi Yoshimoto
CPC分类号： C09B1/585 , C09K19/603 , G02F1/13737 , G02F2202/043
摘要： The present invention relates to an anthraquinone compound represented by formula (1) (in formula (1), R1 represents a C 1-9 alkyl group and R2 represents a C 1-8 alkyl group.); a yellow dichroic pigment that includes this compound: a liquid crystal composition for light control that contains this yellow dichroic pigment and a liquid crystal material: and a light control element that uses this composition.
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公开(公告)号：US20230332048A1
公开(公告)日：2023-10-19
申请号：US18339728
申请日：2023-06-22
申请人： FUJIFILM Corporation
发明人： Wataru HOSHINO , Naoya NISHIMURA , Shinya WATANABE
CPC分类号： C09K19/601 , C09K19/3852 , G02B5/003 , G02F1/133633
摘要： A light absorption anisotropic film, an optical film, and a liquid crystal display device, with less defects and a high alignment degree even when the concentration of a dichroic substance is increased. The light absorption anisotropic film is formed of a liquid crystal composition containing a liquid crystal compound, a dichroic substance represented by Formula (C-1), a dichroic substance represented by Formula (C-2), in which a total content of the dichroic substances represented by Formula (C-1) and Formula (C-2) is 4.5% by mass or greater with respect to a total mass of a solid content of the liquid crystal composition, and the liquid crystal compound is vertically aligned. When Ra1 and Ra2 represent the same group, —N(Rb11)(Rb12) and —N(Rb21)(Rb22) are groups different from each other. When Ra1 and Ra2 represent different groups, —N(Rb11)(Rb12) and —N(Rb21)(Rb22) may be groups that are the same as or different from each other.
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7.发明授权公开(公告)号：US11789302B2
公开(公告)日：2023-10-17
申请号：US16596019
申请日：2019-10-08
申请人： FUJIFILM Corporation
发明人： Wataru Hoshino , Teruki Niori
IPC分类号： G02F1/1333 , C09K19/60 , C09K19/38 , G02F1/135
CPC分类号： G02F1/133365 , C09K19/3852 , C09K19/60 , G02F1/1351 , G02F2202/043
摘要： A liquid crystal composition with which a light absorption anisotropic film having a high alignment degree can be formed. The light absorption anisotropic film is used with the liquid crystal composition, a laminate, and an image display device. The liquid crystal composition contains a linear polymer liquid crystalline compound having a repeating unit; a low-molecular-weight liquid crystalline compound having a maximum absorption wavelength of 390 nm or less in a solution; and a dichroic substance.
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公开(公告)号：US20230303929A1
公开(公告)日：2023-09-28
申请号：US18184342
申请日：2023-03-15
申请人： FUJIFILM Corporation
发明人： Yoshinori MAEDA
CPC分类号： C09K19/56 , G02B5/3016 , C09K19/601 , C09K19/3857 , G02F1/133528
摘要： An object of the present invention is to provide an optical laminate that has excellent uniformity and is capable of suppressing a change in tint of reflected light during black display in a case where the optical laminate is used for an image display device, and an image display device formed of the optical laminate.
The optical laminate is an optical laminate including a light absorption anisotropic layer containing a dichroic substance, a photo-alignment film, and a base material in order, in which the photo-alignment film contains a specific compound having a refractive index of 1.55 to 1.70, and the base material has a glass transition temperature of 150° C. or higher.-
公开(公告)号：US20230287272A1
公开(公告)日：2023-09-14
申请号：US18177762
申请日：2023-03-03
申请人： DIC Corporation
发明人： Yuichi Inoue , Kenta Tojo , Naomi Hatano , Kento Kawakita
IPC分类号： C09K19/60 , G02F1/00 , G02F1/1343
CPC分类号： C09K19/601 , G02F1/0045 , G02F1/1343
摘要： The disclosure provides a liquid crystal device including a liquid crystal composition containing a dichroic dye (dye-containing liquid crystal composition) that is in a light transmissive state when no voltage is applied to the transparent electrode and in a light scattering state when voltage is applied. The liquid crystal composition exhibits a negative dielectric constant anisotropy. The haze value of the liquid crystal device is 10% or less when no voltage is applied at 25° C., and the haze value is 50% or more when a rectangular wave voltage (AC 50 V, 60 Hz) is applied. The voltage holding ratio of the dye-containing liquid crystal composition is 60% or less at 25° C. The liquid crystal device provided by the disclosure is used as a component to provide a liquid crystal display apparatus, a light control apparatus, or a light transmitting apparatus with a high contrast.
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10.发明公开公开(公告)号：US20230265346A1
公开(公告)日：2023-08-24
申请号：US18151893
申请日：2023-01-09
申请人： FUJIFILM Corporation
发明人： Wataru HOSHINO , Hiroshi MATSUYAMA , Keigo SHIGA
CPC分类号： C09K19/52 , C09K19/60 , C09K2019/528
摘要： An object of the present invention is to provide a liquid crystal composition capable of forming an optically anisotropic layer with suppressed alignment defects and an excellent alignment degree, an optically anisotropic layer, a laminate, and an image display device. The liquid crystal composition of the present invention includes a rod-like liquid crystal compound, and an interface improver having a repeating unit B1 represented by Formula (N-1) and a repeating unit B2 having a fluorine atom. In Formula (N-1), RB11 and RB12 each independently represent a hydrogen atom or a substituent, and RB13 represents a hydrogen atom, an alkyl group having 1 to 5 carbon atoms, a halogen atom, or a cyano group. Here, in a case where RB11 and RB12 represent a substituent, RB11 and RB12 may be linked to each other to form a ring.
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