公开(公告)号：US20200172811A1

公开(公告)日：2020-06-04

申请号：US16625977

申请日：2018-07-12

Applicant: DIC Corporation

Inventor： Go Sudo ,  Haruki Ohishi ,  Shirou Taniguchi ,  Kazuki Kurisawa

IPC: C09K19/30

Abstract: A problem to be solved by the present invention is to provide a liquid crystal composition having negative dielectric anisotropy (Δε), large refractive index anisotropy (Δn), a high nematic phase-isotopic liquid phase transition temperature (TNI), a low solid phase-nematic phase transition temperature (TCN), sufficiently low rotational viscosity (γ1), and large elastic constant (K33), and also to provide a VA-mode, FFS-mode, or IPS-mode liquid crystal display device using the liquid crystal composition, satisfying a high response speed, high VHR, and excellent low-temperature storage stability, and having no or very few display defects. According to the liquid crystal composition of the present invention, the problem is solved by a liquid crystal composition containing compounds represented by general formula (S1), general formula (S2), and general formula (S3).

公开(公告)号：US10351772B2

公开(公告)日：2019-07-16

申请号：US15308215

申请日：2015-04-09

Applicant: DIC CORPORATION (TOKYO)

Inventor： Go Sudo ,  Marina Goto

IPC: G02F1/1333 ,  C09K19/12 ,  C08F20/26 ,  C09K19/14 ,  C09K19/16 ,  C09K19/20 ,  C09K19/30 ,  C09K19/38 ,  C09K19/42 ,  C09K19/54 ,  G02F1/13 ,  C09K19/04

Abstract: The present invention relates to a nematic liquid crystal composition containing a polymerizable compound and having a negative dielectric anisotropy (Δε) and PSA or PSVA liquid crystal display element produced by using the same. The liquid crystal composition according to the present invention can provide PSA or PSVA liquid crystal display element, in which a sufficient pretilt angle is included, the amount of remaining monomer is small, there are no or almost no problems, e.g., alignment defects and display defects, arisen from a low voltage holding rate (VHR) and the like, and excellent response performance is exhibited. A liquid crystal display element using the liquid crystal composition according to the present invention is useful for an active-matrix-drive liquid crystal display element and can be applied to PSA, PSVA, and other liquid crystal display elements.

公开(公告)号：US20190203120A1

公开(公告)日：2019-07-04

申请号：US16304948

申请日：2017-11-09

Applicant: DIC Corporation

Inventor： Go Sudo ,  Shinichi Hirata ,  Marina Goto

IPC: C09K19/44 ,  C09K19/12 ,  C09K19/30

CPC classification number: C09K19/44 ,  C09K19/12 ,  C09K19/14 ,  C09K19/30 ,  C09K19/3003 ,  C09K19/3066 ,  C09K19/3098 ,  C09K19/42 ,  C09K2019/122 ,  C09K2019/123 ,  C09K2019/3004 ,  C09K2019/3009 ,  C09K2019/301 ,  C09K2019/3016 ,  G02F1/13 ,  G02F1/1337

Abstract: A problem to be solved by the present invention is to provide a liquid crystal composition containing a polymerizable compound for producing a VA-mode, PSA-mode, or PSVA-mode liquid crystal display device which has large K33, small γ1/K33, high VHR after ultraviolet irradiation, a high polymerization rate of the polymerizable compound, no or very few display defects due to a change in pretilt angle, a satisfactory pretilt angle, and excellent response performance, and also to provide a liquid crystal display device using the liquid crystal composition. The problem is solved by a liquid crystal composition of the present invention containing a compound of formula (B31) and a compound of formula (CB31).

公开(公告)号：US10323186B2

公开(公告)日：2019-06-18

申请号：US15525723

申请日：2015-12-10

Applicant: DIC Corporation

Inventor： Go Sudo ,  Marina Goto

IPC: C09K19/12 ,  C08F120/10 ,  C08K5/00 ,  C09K19/30 ,  C09K19/38 ,  C09K19/54 ,  C08L33/04 ,  C08L63/00 ,  C08L101/02 ,  G02F1/13 ,  G02F1/1337 ,  G02F1/00 ,  C09K19/20 ,  C09K19/32 ,  C09K19/04 ,  C09K19/34

Abstract: There is provided a liquid crystal composition that exhibits a sufficiently low viscosity (η), a sufficiently low rotational viscosity (γ1), and a large elastic modulus (K33) without decreasing the refractive index anisotropy (Δn) and the nematic phase-isotropic liquid phase transition temperature (Tni) and without increasing the solid phase-nematic phase transition temperature (Tcn). The liquid crystal display element that uses this liquid crystal composition satisfactorily obtains a pretilt angle and has a high voltage holding ratio (VHR) and high-speed response. Thus, a liquid crystal display element that has no or less alignment defects and display defects such as image sticking, and has high display quality and high response speed is obtained.

公开(公告)号：US10308873B2

公开(公告)日：2019-06-04

申请号：US15693947

申请日：2017-09-01

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

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：US20180208846A1

公开(公告)日：2018-07-26

申请号：US15745804

申请日：2016-07-26

Applicant: DIC Corporation

Inventor： Megumi Uzawa ,  Junko Yamamoto ,  Shirou Taniguchi ,  Tomoaki Hara ,  Go Sudo

IPC: C09K19/34 ,  C09K19/54 ,  C09K19/42

CPC classification number: C09K19/3447 ,  C09K19/42 ,  C09K19/54 ,  C09K19/542 ,  C09K19/56 ,  C09K2019/548 ,  G02F2001/13706 ,  G02F2001/13712

Abstract: There are provided a liquid crystal composition containing one or two or more compounds represented by the general formula (I) and a liquid crystal display device including the liquid crystal composition. A liquid crystal composition containing a compound represented by the general formula (I) has high dielectric constant anisotropy and low viscosity and is of great practical use as a liquid crystal composition for liquid crystal displays. A liquid crystal display device including a liquid crystal composition according to the present invention has a high contrast, high-speed responsivity, high light resistance, and a lower occurrence of image sticking and display defects, and is effective for higher-speed response and high-quality reliability.

公开(公告)号：US20170362509A1

公开(公告)日：2017-12-21

申请号：US15693947

申请日：2017-09-01

Applicant: DIC CORPORATION

Inventor： Go Sudo ,  Shotaro Kawakami

IPC: C09K19/54 ,  C09K19/30 ,  G02F1/1337 ,  C09K19/02 ,  G02F1/1362 ,  C09K19/12 ,  C09K19/56 ,  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：US09650571B2

公开(公告)日：2017-05-16

申请号：US14427162

申请日：2013-09-10

Applicant: DIC CORPORATION

Inventor： Go Sudo ,  Shotaro Kawakami

IPC: C09K19/20 ,  C09K19/30 ,  C09K19/54 ,  C09K19/02 ,  C09K19/04 ,  C09K19/12

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 Δ∈ 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.

公开(公告)号：US20150259601A1

公开(公告)日：2015-09-17

申请号：US14727323

申请日：2015-06-01

Applicant: DIC CORPORATION

Inventor： Go Sudo ,  Shotaro Kawakami

IPC: C09K19/30 ,  C09K19/54

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.

Abstract translation: 本发明的含有可聚合化合物的液晶组合物涉及含有由通式（I）表示的聚合性化合物和通式（II）表示的化合物的液晶组合物，可用于赋予液晶显示装置 具有通过聚合的液晶取向能力。 要求聚合性液晶组合物在宽的温度范围内不会析出，并且具有对应于快速切换的低粘度，并且需要使用该组合物的液晶显示装置在聚合后具有更稳定的取向，并且不引起缺陷 显示特性。 在本发明中，可以使用规定的化合物来解决问题。

公开(公告)号：US11555152B2

公开(公告)日：2023-01-17

申请号：US16090657

申请日：2017-04-13

Applicant: DIC Corporation

Inventor： Marina Goto ,  Yuichi Inoue ,  Shota Kosaka ,  Go Sudo ,  Masanao Hayashi ,  Manabu Takachi

IPC: G02F1/1333 ,  C09K19/54 ,  C09K19/20 ,  G02F1/1337 ,  C09K19/30 ,  C09K19/32 ,  G02F1/13 ,  C09K19/12 ,  C09K19/34 ,  C09K19/14

Abstract: [Object] An object of the present invention is to provide a liquid crystal composition containing a polymerizable compound for use in the manufacture of a PSA or PSVA liquid crystal display device. The polymerizable compound has a sufficiently high polymerization rate. The PSA or PSVA liquid crystal display device has few or no display defects due to a change in pretilt angle, has an adequate pretilt angle, and has high responsiveness. The present invention also provides a liquid crystal display device having the liquid crystal composition.
[Solution] The object is achieved by using a liquid crystal composition containing one or two or more polymerizable compounds represented by the general formula (I).