公开(公告)号：US10174254B2

公开(公告)日：2019-01-08

申请号：US15105807

申请日：2014-12-19

Applicant: DIC Corporation

Inventor： Go Sudo ,  Yasuo Umezu

IPC: C09K19/54 ,  C09K19/30 ,  C09K19/32 ,  C09K19/20 ,  G02F1/1343 ,  G02F1/1368 ,  C09K19/04 ,  C09K19/12

Abstract: The present invention relates to a liquid crystal composition, which is a liquid crystal composition containing a compound represented by General Formula (II-1) as an anti-oxidizing agent for a liquid crystal composition containing the compound represented by General Formula (II-1) and also as a first component, and a compound represented by General Formula (K) as a second component. The compound represented by General Formula (II-1) enables obtainment of a working effect of the anti-oxidizing agent, and therefore it allows provision of a liquid crystal composition containing the anti-oxidizing agent which has improved reliability like low temperature stability, while the high dielectric anisotropy is maintained.

公开(公告)号：US10133109B2

公开(公告)日：2018-11-20

申请号：US15118678

申请日：2015-02-12

Applicant: DIC Corporation

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

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

Abstract: 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：US20180230383A1

公开(公告)日：2018-08-16

申请号：US15751342

申请日：2016-08-25

Applicant: DIC CORPORATION

Inventor： Junko Yamamoto ,  Tomoaki Hara ,  Go Sudo

IPC: C09K19/54 ,  C09K19/30 ,  C09K19/32 ,  C09K19/34 ,  C07D207/16 ,  C07D207/09 ,  G02F1/137

CPC classification number: C09K19/54 ,  C07D207/09 ,  C07D207/16 ,  C09K19/3003 ,  C09K19/3066 ,  C09K19/322 ,  C09K19/3402 ,  C09K2019/0466 ,  C09K2019/122 ,  C09K2019/123 ,  C09K2019/3004 ,  C09K2019/3009 ,  C09K2019/301 ,  C09K2019/3016 ,  C09K2019/3019 ,  C09K2019/3021 ,  C09K2019/3025 ,  C09K2019/3422 ,  G02F1/137 ,  G02F2001/13706 ,  G02F2001/13712

Abstract: The present application provides a liquid crystal composition with high dielectric constant anisotropy and a low viscosity, and to provide a liquid crystal display device with high contrast, high-speed responsivity, high light fastness, and high display quality without image sticking and display defects. The liquid crystal composition contains one or two or more compounds represented by the general formula (I). The liquid crystal composition is of great practical use as a liquid crystal composition for use in liquid crystal displays and is effective for high contrast, high-speed response, and high quality reliability.

公开(公告)号：US09879180B2

公开(公告)日：2018-01-30

申请号：US14347459

申请日：2012-09-21

Applicant: DIC Corporation

Inventor： Go Sudo ,  Shotaro Kawakami

IPC: G02F1/1333 ,  C09K19/20 ,  C09K19/30 ,  C09K19/44 ,  C09K19/54 ,  C09K19/04 ,  C09K19/12

CPC classification number: C09K19/20 ,  C09K19/3066 ,  C09K19/44 ,  C09K19/542 ,  C09K2019/0448 ,  C09K2019/122 ,  C09K2019/301 ,  C09K2019/3016 ,  C09K2019/548

Abstract: A liquid crystal composition of the present invention is used for a liquid crystal display device of an active matrix driving mode which is required to have fast response. The liquid crystal composition has negative dielectric anisotropy, a large absolute value thereof, and low viscosity. Also, the liquid crystal composition has excellent liquid crystallinity that does not decrease Δn and Tni, and the like, and exhibits a stable liquid crystal phase within a wide temperature range. Further, the liquid crystal composition is chemically stable to heat, light, water, and the like and is thus suitable for use in a liquid crystal display device in which display defects are suppressed in large-size application requiring high reliability. A liquid crystal display device using the liquid crystal composition can be suitably used as a liquid crystal display device of a VA mode or the like.

公开(公告)号：US09777220B2

公开(公告)日：2017-10-03

申请号：US15147095

申请日：2016-05-05

Applicant: DIC CORPORATION

Inventor： Go Sudo ,  Shotaro Kawakami

IPC: G02F1/1333 ,  C09K19/54 ,  C09K19/12 ,  C09K19/30 ,  C09K19/56 ,  G02F1/1337 ,  C09K19/02 ,  G02F1/1362 ,  C09K19/04

CPC classification number: C09K19/542 ,  C09K19/0216 ,  C09K19/12 ,  C09K19/3066 ,  C09K19/56 ,  C09K2019/0448 ,  C09K2019/122 ,  C09K2019/3016 ,  C09K2019/548 ,  G02F1/133788 ,  G02F1/1362

Abstract: A polymerizable compound-containing liquid crystal composition of the present invention relates to a liquid crystal composition containing a polymerizable compound represented by general formula (I) and a compound represented by general formula (II) and can be used for a liquid crystal display device imparted with liquid crystal aligning ability by polymerization. The polymerizable liquid crystal composition is required to cause no precipitation in a wide temperature range and have a low viscosity corresponding to fast switching, and a liquid crystal display device using the composition is required to have more stable alignment after polymerization and to cause no defect in display characteristics. In the present invention, the problems can be solved using a specified compound.

公开(公告)号：US20160319195A1

公开(公告)日：2016-11-03

申请号：US15105807

申请日：2014-12-19

Applicant: DIC CORPORATION

Inventor： Go Sudo ,  Yasuo Umezu

IPC: C09K19/54 ,  G02F1/1368 ,  G02F1/1343 ,  C09K19/30 ,  C09K19/32

CPC classification number: C09K19/54 ,  C09K19/20 ,  C09K19/3066 ,  C09K19/322 ,  C09K2019/0448 ,  C09K2019/0466 ,  C09K2019/122 ,  C09K2019/3004 ,  C09K2019/301 ,  C09K2019/3016 ,  C09K2019/3019 ,  C09K2019/3078 ,  G02F1/13439 ,  G02F1/1368 ,  G02F2201/123

Abstract: The present invention relates to a liquid crystal composition, which is a liquid crystal composition containing a compound represented by General Formula (II-1) as an anti-oxidizing agent for a liquid crystal composition containing the compound represented by General Formula (II-1) and also as a first component, and a compound represented by General Formula (K) as a second component. The compound represented by General Formula (II-1) enables obtainment of a working effect of the anti-oxidizing agent, and therefore it allows provision of a liquid crystal composition containing the anti-oxidizing agent which has improved reliability like low temperature stability, while the high dielectric anisotropy is maintained.

Abstract translation: 本发明涉及一种液晶组合物，它是含有通式（II-1）表示的化合物作为含有通式（II-1）表示的化合物的液晶组合物的抗氧化剂的液晶组合物 ）以及作为第一成分的通式（K）表示的化合物作为第二成分。 由通式（II-1）表示的化合物能够获得抗氧化剂的作用效果，因此可以提供含有抗氧化剂的液晶组合物，其具有改善的可靠性，如低温稳定性，同时 维持高的介电各向异性。

公开(公告)号：US20160319191A1

公开(公告)日：2016-11-03

申请号：US14898544

申请日：2014-03-06

Applicant: DIC Corporation

Inventor： Shinichi Hirata ,  Go Sudo ,  Shotaro Kawakami

IPC: C09K19/32 ,  C09K19/02 ,  C09K19/54 ,  C09K19/30

CPC classification number: C09K19/322 ,  C09K19/0216 ,  C09K19/3003 ,  C09K19/44 ,  C09K19/542 ,  C09K2019/0444 ,  C09K2019/0448 ,  C09K2019/122 ,  C09K2019/123 ,  C09K2019/124 ,  C09K2019/3004 ,  C09K2019/3009 ,  C09K2019/301 ,  C09K2019/3016 ,  C09K2019/3027 ,  C09K2019/548 ,  G02F1/1393

Abstract: A task to be achieved by the present invention is to provide a liquid crystal composition which has a satisfactorily low solid phase-nematic phase transition temperature (Ton), a satisfactorily small viscosity (η), a satisfactorily small rotational viscosity (γ1), a large elastic constant (K33), and a negative dielectric anisotropy (Δε), the absolute value of which is large, without having lowered the refractive index anisotropy (Δn) and nematic phase-isotropic liquid phase transition temperature (Tni), and further to provide a liquid crystal display element of a VA mode or the like using the same, which has excellent display quality such that the element is free of or has suppressed a display failure, and which has high response speed. Provided are a liquid crystal composition comprising one kind or two or more kinds of compounds having an alkenyl side chain in the liquid crystal composition, wherein the total content of the compounds having an alkenyl side chain in the liquid crystal composition is from 5 to 100% by mass, and a liquid crystal display element using the same.

Abstract translation: 本发明要实现的任务是提供一种液晶组合物，其具有令人满意的低固相 - 向列相转变温度（Ton），令人满意的小粘度（η），令人满意的小旋转粘度（γ1）， 绝对值大，不降低折射率各向异性（Δn）和向列相各向同性液相转变温度（Tni）的大的弹性常数（K33）和负的介电各向异性（Δε），进而至 提供具有优异显示质量的VA模式等的液晶显示元件，使得该元件没有显示故障或已经抑制了显示故障，并且具有高响应速度。 本发明提供液晶组合物中含有一种或两种以上具有烯基侧链的化合物的液晶组合物，其中液晶组合物中具有烯基侧链的化合物的总含量为5〜100％ 和使用该液晶显示元件的液晶显示元件。

公开(公告)号：US20160215215A1

公开(公告)日：2016-07-28

申请号：US14915309

申请日：2014-09-04

Applicant: DIC CORPORATION

Inventor： Shinichi Hirata ,  Go Sudo ,  Shotaro Kawakami

IPC: C09K19/32 ,  C09K19/54 ,  C07C69/88 ,  C07D305/06 ,  C07C69/753 ,  C07D213/79 ,  C07D303/40 ,  C09K19/30 ,  C07C69/604

CPC classification number: C09K19/322 ,  C07C69/604 ,  C07C69/753 ,  C07C69/88 ,  C07C2601/14 ,  C07D213/79 ,  C07D303/40 ,  C07D305/06 ,  C09K19/20 ,  C09K19/3066 ,  C09K19/44 ,  C09K19/542 ,  C09K2019/0407 ,  C09K2019/0448 ,  C09K2019/122 ,  C09K2019/3004 ,  C09K2019/3009 ,  C09K2019/548

Abstract: The present invention relates to a nematic liquid crystal composition useful as a liquid crystal display material, the liquid crystal composition having negative dielectric anisotropy (Δ∈), and to a liquid crystal device element including the liquid crystal composition. The liquid crystal composition of the present invention has sufficiently low viscosity (η), sufficiently low rotational viscosity (γ1), a large elastic constant (K33), and a negative dielectric anisotropy (Δ∈) whose absolute value is large, without reducing the refractive index anisotropy (Δn) or the nematic-isotropic liquid phase transition temperature (Tni). Provided is, for example, a VA-mode liquid crystal display element including the liquid crystal composition, the liquid crystal display element having no or minimal display defects and having excellent display quality and a fast response. The liquid crystal display element including the liquid crystal composition of the present invention is useful for an active matrix-addressed liquid crystal display element and used for, for example, a VA- or PSVA-mode liquid crystal display element.

Abstract translation: 本发明涉及用作液晶显示材料的液晶组合物，具有负的介电各向异性（Δε）的液晶组合物以及包括液晶组合物的液晶装置元件。 本发明的液晶组合物具有足够低的粘度（η），足够低的旋转粘度（γ1），大的弹性常数（K33）和绝对值大的负介电各向异性（Δε），而不会降低 折射率各向异性（Δn）或向列各向同性液相转变温度（Tni）。 例如，提供了包括液晶组合物的VA模式液晶显示元件，液晶显示元件没有显示缺陷或显示缺陷很小，并具有优异的显示质量和快速响应。 包含本发明的液晶组合物的液晶显示元件对于有源矩阵寻址液晶显示元件是有用的，并且用于例如VA-或PSVA型液晶显示元件。

公开(公告)号：US20150315469A1

公开(公告)日：2015-11-05

申请号：US14651001

申请日：2013-11-29

Applicant: DIC CORPORATION

Inventor： Go Sudo ,  Shotaro Kawakami

IPC: C09K19/30 ,  C09K19/02 ,  C09K19/54

CPC classification number: C09K19/3066 ,  C09K19/0216 ,  C09K19/20 ,  C09K19/2014 ,  C09K19/542 ,  C09K2019/0448 ,  C09K2019/123 ,  C09K2019/3004 ,  C09K2019/3009 ,  C09K2019/301 ,  C09K2019/3016 ,  C09K2019/548

Abstract: There is provided a liquid crystal composition having a dielectric anisotropy (Δ∈) large in absolute value, a sufficiently low viscosity (η), a sufficiently low rotational viscosity (γ1), and a high elastic constant (K33) without decreased refractive index anisotropy (Δn) or nematic phase-isotropic liquid phase transition temperature (Tni). A liquid crystal display device, such as a VA mode liquid crystal display device, including the liquid crystal composition has high response speed and good display quality with few or no display defects. The liquid crystal display device including the liquid crystal composition is useful as an active-matrix liquid crystal display device and is applicable as a liquid crystal display device such as a VA mode or PSVA mode liquid crystal display device.

Abstract translation: 提供了具有绝对值大的介电各向异性（＆Dgr;∈）的液晶组合物，具有足够低的粘度（＆eegr），足够低的旋转粘度（γ1）和高弹性常数（K33）而不降低折射率 指数各向异性（＆Dgr; n）或向列相各向同性液相转变温度（Tni）。 包括液晶组合物的VA模式液晶显示装置的液晶显示装置具有高的响应速度和良好的显示质量，几乎没有或没有显示缺陷。 包括液晶组合物的液晶显示装置可用作有源矩阵液晶显示装置，并且可用作诸如VA模式或PSVA模式液晶显示装置的液晶显示装置。

公开(公告)号：US20150315468A1

公开(公告)日：2015-11-05

申请号：US14427162

申请日：2013-09-10

Applicant: DIC Corporation

Inventor： Go Sudo ,  Shotaro Kawakami

IPC: C09K19/30 ,  C09K19/02 ,  C09K19/54

CPC classification number: C09K19/3066 ,  C09K19/0216 ,  C09K19/20 ,  C09K19/542 ,  C09K2019/0448 ,  C09K2019/122 ,  C09K2019/3004 ,  C09K2019/3009 ,  C09K2019/301 ,  C09K2019/3016 ,  C09K2019/548

Abstract: There is provided a liquid crystal composition having a sufficiently low viscosity (η), a sufficiently low rotational viscosity (γ1), a high elastic constant (K33), and negative Δε with a high absolute value without decreasing the refractive index anisotropy (Δn) and the nematic phase-isotropic liquid phase transition temperature (Tni); and a liquid crystal display device with a VA mode or the like that uses the liquid crystal composition and has high display quality and high response speed. The liquid crystal display device that uses the liquid crystal composition of the present invention has a distinguished feature of high-speed response and is particularly useful as an active matrix driving liquid crystal display device. The liquid crystal display device is applicable to a VA mode, PSVA mode, PSA mode, IPS mode, or ECB mode liquid crystal display device.

Abstract translation: 提供了一种具有足够低的粘度（η），足够低的旋转粘度（γ1），高弹性常数（K33）和负＆Dgr; 具有高绝对值而不降低折射率各向异性（＆Dgr; n）和向列相各向同性液相转变温度（Tni）; 以及使用该液晶组合物的VA模式等的液晶显示装置，具有高显示质量和高响应速度。 使用本发明的液晶组合物的液晶显示装置具有高速响应的显着特征，作为有源矩阵驱动液晶显示装置是特别有用的。 液晶显示装置适用于VA模式，PSVA模式，PSA模式，IPS模式或ECB模式液晶显示装置。