公开(公告)号：US10423033B2

公开(公告)日：2019-09-24

申请号：US15027141

申请日：2014-09-30

申请人： DIC CORPORATION

发明人： Fumiaki Kodera ,  Kunihiko Kotani ,  Kazunori Maruyama ,  Yutaka Kadomoto ,  Masanao Takashima ,  Hiroshi Hasebe ,  Yoshitaka Saito

IPC分类号： G02F1/1337 ,  G02F1/1341

摘要： [Problem] The purpose of the present invention is to provide a method for developing a large anchoring energy by simple processes. [Solution] There is provided a method for manufacturing a liquid crystal alignment film, comprising: a process (I) of mixing a solvent with a photoresponsive polymer to prepare a photoresponsive polymer solution; a process (II) of coating the photoresponsive polymer solution on a substrate, followed by drying at 50 to 100° C. for 1 to 3 minutes and then drying at 120° C. to 180° C. for 5 to 75 minutes to form a coating film; and a process (III) of adjusting a temperature of the coating film while the coating film is irradiated with a light of 200 to 350 nm to 40° C. to 100° C.

公开(公告)号：US11326103B2

公开(公告)日：2022-05-10

申请号：US16468388

申请日：2017-12-12

申请人： DIC Corporation

发明人： Hiroshi Hasebe ,  Toru Fujisawa ,  Yoshinori Iwashita ,  Fumiaki Kodera ,  Keisuke Fujisawa ,  Kenji Nakamura ,  Yuichi Satokawa

IPC分类号： G02F1/1334 ,  C09K19/54 ,  C09K19/30 ,  C09K19/34 ,  C09K19/04

摘要： To provide a liquid crystal display device that has a high off-response speed and a good balance between drive voltage and transmittance, is stable over time, and also has a high voltage holding ratio. A liquid crystal display device in which a liquid crystal layer containing a polymer network (A) and a liquid crystal composition (B) is disposed between two substrates having an electrode on at least one side thereof and having transparent properties on at least one side thereof, and the loss factor (tan δ) (loss modulus/storage modulus) of the liquid crystal layer calculated from the storage modulus (Pa) and the loss modulus (Pa) in a sinusoidal vibration measured with a rheometer at 25° C. and at a measurement frequency of 1 Hz ranges from 0.1 to 1.

公开(公告)号：US10133109B2

公开(公告)日：2018-11-20

申请号：US15118678

申请日：2015-02-12

申请人： DIC Corporation

发明人： Toru Fujisawa ,  Go Sudo ,  Shuuhei Yamamoto ,  Kazunori Maruyama ,  Haruyoshi Takatsu ,  Marina Goto ,  Fumiaki Kodera ,  Keumhee Jang

IPC分类号： G02F1/1333 ,  G02F1/1334 ,  C09K19/54 ,  G02F1/1337 ,  C09K19/02 ,  C09K19/30 ,  C09K19/56

摘要： Provided is an LCD device having excellent high speed responsiveness. This LCD device contains a polymer or a copolymer in a liquid crystal composition sandwiched between two transparent substrates, at least one of which has an electrode, and the content of the polymer or the copolymer is 1% by mass or greater and less than 40% by mass of the total mass of the liquid crystal composition and the polymer or the copolymer. This LCD device can be applied to various operation modes such as TN, STN, ECB, VA, VA-TN, IPS, FFS, a π cell, OCB, and cholesteric liquid crystals.

公开(公告)号：US20180230385A1

公开(公告)日：2018-08-16

申请号：US15954045

申请日：2018-04-16

申请人： DIC Corporation

发明人： Fumiaki Kodera ,  Yoshitaka Saito ,  Hiroshi Hasebe ,  Masanao Takashima ,  Shuuhei Yamamoto ,  Kouzi Satou ,  Sayaka Nose ,  Kazuki Obi ,  Hiroyuki Itou

IPC分类号： C09K19/56 ,  C07C245/08 ,  C08F220/30 ,  C08F222/20 ,  G02F1/1337

摘要： A compound and a polymer which can each form a photo-alignment film having excellent ability of controlling alignment, a photo-alignment film obtained using the polymer and an optically anisotropic body and a liquid crystal display element each having the photo-alignment film are provided. A compound represented by the general formula (1). In the formula, P represents a polymerizable group, Z and Z1 represent divalent linking groups, A and A1 represent divalent cyclic groups, and X1 to X5 each independently represent a hydrogen atom, a fluorine atom, a chlorine atom, a hydroxy group, a nitro group, a cyano group or an alkyl group having 1 to 40 carbon atoms which may have a substituent, provided that X1, X2, X4 and X5 are not simultaneously hydrogen atoms.

公开(公告)号：US20170088777A1

公开(公告)日：2017-03-30

申请号：US15316022

申请日：2015-05-26

申请人： DIC CORPORATION

发明人： Hiroshi Hasebe ,  Fumiaki Kodera ,  Masanao Takashima ,  Isa Nishiyama ,  Hiroyuki Itou ,  Yutaka Kadomoto ,  Kazuki Obi ,  Yoshitaka Saitou ,  Yuuichirou Tani ,  Keisuke Fujisawa

IPC分类号： C09K19/56 ,  G02F1/1337 ,  C08F20/36

CPC分类号： C09K19/56 ,  C08F20/30 ,  C08F20/36 ,  C08F20/58 ,  C08F20/60 ,  C08F22/40 ,  C09K19/601 ,  C09K2019/0448 ,  G02F1/1337 ,  G02F1/133711 ,  G02F1/133788

摘要： An object of the present invention is to provide a photoalignment layer with a more reliable absorption anisotropy parameter as a photoalignment layer that allows for reduced AC image-sticking. Specifically, provided is a photoalignment layer, obtained by exposure to polarized UV radiation, that has a maximum ΔA (=A1−A2, where A1 is the absorbance in a direction parallel to a vibration direction of the polarized UV radiation, and A2 is the absorbance in a direction parallel to the vibration direction of the polarized UV radiation) of 0.35 or more per micrometer of layer thickness in a range of 230 to 380 nm.

公开(公告)号：US20160231626A1

公开(公告)日：2016-08-11

申请号：US15027141

申请日：2014-09-30

申请人： DIC CORPORATION

发明人： Fumiaki Kodera ,  Kunihiko Kotani ,  Kazunori Maruyama ,  Yutaka Kadomoto ,  Masanao Takashima ,  Hiroshi Hasebe ,  Yoshitaka Saito

IPC分类号： G02F1/1337 ,  G02F1/1341

摘要： [Problem] The purpose of the present invention is to provide a method for developing a large anchoring energy by simple processes. [Solution] There is provided a method for manufacturing a liquid crystal alignment film, comprising: a process (I) of mixing a solvent with a photoresponsive polymer to prepare a photoresponsive polymer solution; a process (II) of coating the photoresponsive polymer solution on a substrate, followed by drying at 50 to 100° C. for 1 to 3 minutes and then drying at 120° C. to 180° C. for 5 to 75 minutes to form a coating film; and a process (III) of adjusting a temperature of the coating film while the coating film is irradiated with a light of 200 to 350 nm to 40° C. to 100° C.

摘要翻译： 发明内容本发明的目的是提供一种通过简单的工艺开发大的锚定能量的方法。 [解决方案]提供了一种制造液晶取向膜的方法，包括：将溶剂与光响应性聚合物混合以制备光响应聚合物溶液的方法（I）; 将光响应性聚合物溶液涂布在基材上的方法（II），然后在50〜100℃下干燥1〜3分钟，然后在120℃下干燥至180℃5〜75分钟，形成 涂膜; 以及在用200〜350nm〜40℃〜100℃的光照射涂膜的同时调整涂膜的温度的工序（III）

公开(公告)号：US10738242B2

公开(公告)日：2020-08-11

申请号：US15954045

申请日：2018-04-16

申请人： DIC Corporation

发明人： Fumiaki Kodera ,  Yoshitaka Saito ,  Hiroshi Hasebe ,  Masanao Takashima ,  Shuuhei Yamamoto ,  Kouzi Satou ,  Sayaka Nose ,  Kazuki Obi ,  Hiroyuki Itou

IPC分类号： G02F1/1333 ,  C09K19/56 ,  C09K19/24 ,  C07C245/08 ,  C08F220/30 ,  C08F222/20 ,  C08F220/34 ,  C09K19/04 ,  G02F1/1337

摘要： A compound and a polymer which can each form a photo-alignment film having excellent ability of controlling alignment, a photo-alignment film obtained using the polymer and an optically anisotropic body and a liquid crystal display element each having the photo-alignment film are provided. A compound represented by the general formula (1). In the formula, P represents a polymerizable group, Z and Z1 represent divalent linking groups, A and A1 represent divalent cyclic groups, and X1 to X5 each independently represent a hydrogen atom, a fluorine atom, a chlorine atom, a hydroxy group, a nitro group, a cyano group or an alkyl group having 1 to 40 carbon atoms which may have a substituent, provided that X1, X2, X4 and X5 are not simultaneously hydrogen atoms.

公开(公告)号：US09708535B2

公开(公告)日：2017-07-18

申请号：US15316022

申请日：2015-05-26

申请人： DIC CORPORATION

发明人： Hiroshi Hasebe ,  Fumiaki Kodera ,  Masanao Takashima ,  Isa Nishiyama ,  Hiroyuki Itou ,  Yutaka Kadomoto ,  Kazuki Obi ,  Yoshitaka Saitou ,  Yuuichirou Tani ,  Keisuke Fujisawa

IPC分类号： C08F12/20 ,  C08F20/00 ,  C08F12/24 ,  C08F12/26 ,  C09K19/56 ,  C08F20/36 ,  G02F1/1337

CPC分类号： C09K19/56 ,  C08F20/30 ,  C08F20/36 ,  C08F20/58 ,  C08F20/60 ,  C08F22/40 ,  C09K19/601 ,  C09K2019/0448 ,  G02F1/1337 ,  G02F1/133711 ,  G02F1/133788

摘要： An object of the present invention is to provide a photoalignment layer with a more reliable absorption anisotropy parameter as a photoalignment layer that allows for reduced AC image-sticking. Specifically, provided is a photoalignment layer, obtained by exposure to polarized UV radiation, that has a maximum ΔA (=A1−A2, where A1 is the absorbance in a direction parallel to a vibration direction of the polarized UV radiation, and A2 is the absorbance in a direction parallel to the vibration direction of the polarized UV radiation) of 0.35 or more per micrometer of layer thickness in a range of 230 to 380 nm.

公开(公告)号：US09683174B2

公开(公告)日：2017-06-20

申请号：US15039727

申请日：2014-11-27

申请人： DIC CORPORATION

发明人： Hiroshi Hasebe ,  Kazunori Maruyama ,  Fumiaki Kodera ,  Kunihiko Kotani ,  Sayaka Nose ,  Yoshio Aoki ,  Tetsuo Kusumoto

IPC分类号： C08F12/26 ,  C08F12/28 ,  C08F12/24 ,  C09K19/56 ,  G02F1/1337 ,  C08F22/10 ,  C08F222/10 ,  C07C255/16 ,  C08F122/30 ,  C09K19/32 ,  C09K19/06 ,  C09K19/04 ,  C09K19/20

CPC分类号： C09K19/56 ,  C07C255/16 ,  C08F22/10 ,  C08F122/30 ,  C08F222/1006 ,  C08F2222/102 ,  C09K19/062 ,  C09K19/322 ,  C09K2019/0448 ,  C09K2019/2035 ,  G02F1/133711 ,  G02F1/133788 ,  G02F2001/133738 ,  G02F2001/133742

摘要： [Object]To provide a liquid crystal alignment layer that can easily be formed, to which an anchoring force can be efficiently induced with less polarized light for exposure, and that is effective in controlling the orientation and pretilt angle of liquid crystal molecules, and a compound and polymer that can be used for such a liquid crystal alignment layer.[Solution]A compound is represented by general formula (I): where L is a polymerizable group; Sp is a spacer unit containing methylene; Q is a direct bond, —O—, or other group; A contains a group selected from the group consisting of trans-1,4-cyclohexylene and other groups; s is an integer of 1 to 4, where if s is 2 to 4, each A may be the same or different; X and Y are each independently hydrogen or other group; and M is any of general formulas (IIa), (IIb), and (IIc):

公开(公告)号：US20160376507A1

公开(公告)日：2016-12-29

申请号：US15039727

申请日：2014-11-27

申请人： DIC CORPORATION

发明人： Hiroshi Hasebe ,  Kazunori Maruyama ,  Fumiaki Kodera ,  Kunihiko Kotani ,  Sayaka Nose ,  Yoshio Aoki ,  Tetsuo Kusumoto

IPC分类号： C09K19/56 ,  G02F1/1337 ,  C09K19/32 ,  C07C255/16 ,  C08F122/30

CPC分类号： C09K19/56 ,  C07C255/16 ,  C08F22/10 ,  C08F122/30 ,  C08F222/1006 ,  C08F2222/102 ,  C09K19/062 ,  C09K19/322 ,  C09K2019/0448 ,  C09K2019/2035 ,  G02F1/133711 ,  G02F1/133788 ,  G02F2001/133738 ,  G02F2001/133742

摘要： [Object]To provide a liquid crystal alignment layer that can easily be formed, to which an anchoring force can be efficiently induced with less polarized light for exposure, and that is effective in controlling the orientation and pretilt angle of liquid crystal molecules, and a compound and polymer that can be used for such a liquid crystal alignment layer.[Solution]A compound is represented by general formula (I): where L is a polymerizable group; Sp is a spacer unit containing methylene; Q is a direct bond, —O—, or other group; A contains a group selected from the group consisting of trans-1,4-cyclohexylene and other groups; s is an integer of 1 to 4, where if s is 2 to 4, each A may be the same or different; X and Y are each independently hydrogen or other group; and M is any of general formulas (IIa), (IIb), and (IIc):

摘要翻译： 提供：能够容易地形成的液晶取向膜能够在少量的偏振照射下有效地赋予取向调节力，并且表现出优异的液晶分子取向和预倾角控制; 可以使用的化合物; 和该化合物的聚合物。 [溶液]式（1）表示的化合物（式中，L表示聚合性基团，Sp表示含有亚甲基的间隔单元，Q表示直接键或-O-键等），A表示选自 来自由反式-1,4-亚环己基等基团组成的组，s表示1-4的整数，当s表示2-4时，多个A可以相同也可以不同，X和Y分别 独立地表示氢原子等基团，M表示式（IIa），（IIb）或（IIc））。