公开(公告)号：US10208250B2

公开(公告)日：2019-02-19

申请号：US15105914

申请日：2014-12-17

Applicant: DIC CORPORATION

Inventor： Shirou Taniguchi ,  Joji Kawamura

IPC: C09K19/42 ,  C09K19/34 ,  C09K19/44 ,  C09K19/02 ,  G02F1/00 ,  G02F1/1343 ,  G02F1/137 ,  C09K19/04 ,  C09K19/12 ,  G02F1/1335 ,  G02F1/1337 ,  G02F1/1339 ,  G02F1/1341 ,  G02F1/1362

Abstract: Provided are a liquid crystal composition including at least one or more compounds represented by General Formula (i) and at least one or more compounds represented by General Formula (M-1), in which the dielectric constant anisotropy at 25° C. is larger than 0 and 5 or less; and a liquid crystal display element using this composition. The liquid crystal composition has a positive Δε, can have the electrical capacity of the liquid crystal layer (CLC) reduced to a low level, can be driven at a voltage that is practically sufficiently low, and satisfies at least any one of the requirements of maintaining a liquid crystal phase over a wider temperature range, low viscosity, satisfactory solubility at low temperature, high specific resistance or voltage retention rate, and stability to heat or light; and provide an excellent liquid crystal display element.

公开(公告)号：US10000700B2

公开(公告)日：2018-06-19

申请号：US15320974

申请日：2015-07-28

Applicant: DIC Corporation

Inventor： Shirou Taniguchi ,  Joji Kawamura

IPC: G02F1/1333 ,  C09K19/34 ,  C09K19/54 ,  C09K19/02 ,  G02F1/1362 ,  C09K19/04

CPC classification number: C09K19/3402 ,  C09K19/0208 ,  C09K19/0216 ,  C09K19/20 ,  C09K19/3066 ,  C09K19/42 ,  C09K19/542 ,  C09K2019/0466 ,  C09K2019/123 ,  C09K2019/3004 ,  C09K2019/301 ,  C09K2019/3025 ,  C09K2019/3422 ,  G02F1/1362 ,  G02F2001/13706 ,  G02F2202/022

Abstract: The present invention provides a liquid crystal composition having positive dielectric anisotropy and containing at least one compound represented by general formula (LC0): and at least one compound represented by general formula (LC1): R11A11-Z11m11A12-Z12-A13-R12  (LC1) The liquid crystal composition according to the present invention has refractive index anisotropy (Δn) adjusted to the desired level and a decrease in nematic phase-isotropic liquid phase transition temperature (Tni) and an increase in the nematic phase lower limit temperature are suppressed so as to achieve a sufficiently low viscosity (η) without degrading the nematic phase temperature range. When the liquid crystal composition of the present invention is used to produce a liquid crystal display device, a highly practical and highly reliable liquid crystal display device with high response speed and capacity for low-voltage drive is obtained.

公开(公告)号：US20170029700A1

公开(公告)日：2017-02-02

申请号：US15105914

申请日：2014-12-17

Applicant: DIC CORPORATION

Inventor： Shirou Taniguchi ,  Joji Kawamura

IPC: C09K19/34 ,  C09K19/02

CPC classification number: C09K19/3402 ,  C09K19/0216 ,  C09K19/44 ,  C09K2019/0466 ,  C09K2019/123 ,  C09K2019/3422 ,  G02F1/0045 ,  G02F1/133516 ,  G02F1/133788 ,  G02F1/1339 ,  G02F1/1341 ,  G02F1/134363 ,  G02F1/13439 ,  G02F1/1362 ,  G02F2001/133746 ,  G02F2001/134372 ,  G02F2001/13706

Abstract: Provided are a liquid crystal composition including at least one or more compounds represented by General Formula (i) and at least one or more compounds represented by General Formula (M-1), in which the dielectric constant anisotropy at 25° C. is larger than 0 and 5 or less; and a liquid crystal display element using this composition. The liquid crystal composition has a positive Δ∈, can have the electrical capacity of the liquid crystal layer (CLC) reduced to a low level, can be driven at a voltage that is practically sufficiently low, and satisfies at least any one of the requirements of maintaining a liquid crystal phase over a wider temperature range, low viscosity, satisfactory solubility at low temperature, high specific resistance or voltage retention rate, and stability to heat or light; and provide an excellent liquid crystal display element.

Abstract translation: 提供一种液晶组合物，其包含至少一种或多种由通式（i）表示的化合物和至少一种或多种由通式（M-1）表示的化合物，其中25℃下的介电常数各向异性较大 0和5以下; 以及使用该组成的液晶显示元件。 液晶组合物具有正的Δε，可以使液晶层（CLC）的电容降低到低水平，可以在实际上足够低的电压下驱动，并且满足至少任何一个要求 在更宽的温度范围内保持液晶相，低粘度，低温下的良好溶解性，高电阻率或电压保持率，以及对热或光的稳定性; 并提供优异的液晶显示元件。

公开(公告)号：US10253258B2

公开(公告)日：2019-04-09

申请号：US15328120

申请日：2015-07-28

Applicant: DIC CORPORATION

Inventor： Shirou Taniguchi ,  Joji Kawamura

IPC: G02F1/1333 ,  C09K19/12 ,  C09K19/20 ,  C09K19/42 ,  C09K19/10 ,  C09K19/32 ,  G02F1/1362 ,  C09K19/30 ,  C09K19/04 ,  C09K19/34

Abstract: The present invention provides a liquid crystal composition including at least one compound represented by General Formula (1), at least one compound represented by General Formula (2), and at least one compound represented by General Formula (LC1). The liquid crystal composition of the present invention has high refractive index anisotropy (Δn) and sufficiently low viscosity (η), achieves a wide nematic phase temperature range by suppressing a decrease in nematic phase-isotropic liquid phase transition temperature (Tni), and exhibits high compatibility. By using the liquid crystal composition of the present invention in a liquid crystal display element, a liquid crystal display element having a high response speed and high practical reliability can be obtained.

公开(公告)号：US20170218269A1

公开(公告)日：2017-08-03

申请号：US15328120

申请日：2015-07-28

Applicant: DIC CORPORATION

Inventor： Shirou Taniguchi ,  Joji Kawamura

IPC: C09K19/12 ,  G02F1/1362 ,  C09K19/32 ,  C09K19/10 ,  C09K19/20

CPC classification number: C09K19/12 ,  C09K19/10 ,  C09K19/20 ,  C09K19/3066 ,  C09K19/322 ,  C09K19/42 ,  C09K2019/0466 ,  C09K2019/122 ,  C09K2019/123 ,  C09K2019/124 ,  C09K2019/3004 ,  C09K2019/301 ,  C09K2019/3016 ,  C09K2019/3025 ,  C09K2019/3078 ,  C09K2019/3422 ,  G02F1/1362

Abstract: The present invention provides a liquid crystal composition including at least one compound represented by General Formula (1), at least one compound represented by General Formula (2), and at least one compound represented by General Formula (LC1). The liquid crystal composition of the present invention has high refractive index anisotropy (Δn) and sufficiently low viscosity (η), achieves a wide nematic phase temperature range by suppressing a decrease in nematic phase-isotropic liquid phase transition temperature (Tni), and exhibits high compatibility. By using the liquid crystal composition of the present invention in a liquid crystal display element, a liquid crystal display element having a high response speed and high practical reliability can be obtained.

公开(公告)号：US10788526B2

公开(公告)日：2020-09-29

申请号：US15998531

申请日：2018-08-16

Applicant: DIC Corporation

Inventor： Hiroshi Hasebe ,  Shirou Taniguchi ,  Wei Wu

IPC: G01R29/14 ,  G02F1/13 ,  G06F3/041 ,  G02F1/1343 ,  G02F1/1334 ,  G02F1/137 ,  C09K19/30 ,  C09K19/60 ,  C09K19/54 ,  G02F1/1333 ,  C09K19/12 ,  G01R31/00

Abstract: The inventors have intensively studied and found that an electrostatic indicator that can visualize the magnitude of its charge potential can be provided by using a liquid crystal composition and forming multiple regions in which the alignment of the molecules of the liquid crystal composition differently changes in response to electric potential. Furthermore, there is provided an electrostatic indicator that can be placed in a two-dimensional or three-dimensional manner to also visualize spatial distribution of high or low charge potential.

公开(公告)号：US20170205669A1

公开(公告)日：2017-07-20

申请号：US15313859

申请日：2015-05-21

Applicant: DIC Corporation

Inventor： Yoshiyuki Ono ,  Kunihiko Kotani ,  Kazunori Maruyama ,  Hiroshi Hasebe ,  Masanao Takashima ,  Shirou Taniguchi ,  Fumiaki Kodera

IPC: G02F1/1337 ,  G02F1/1333 ,  G02F1/1368 ,  G02F1/1335

CPC classification number: G02F1/133788 ,  G02B5/3083 ,  G02F1/133345 ,  G02F1/133514 ,  G02F1/133528 ,  G02F1/13363 ,  G02F1/1337 ,  G02F1/134363 ,  G02F1/1368 ,  G02F2001/133738 ,  G02F2001/134318 ,  G02F2201/121 ,  G02F2201/123 ,  G02F2201/124 ,  G02F2202/023

Abstract: The present inventors have made earnest investigations for enhancing the alignment regulation force of the alignment film, and as a result, it has been found that the alignment regulation force can be easily achieved by controlling the yellowness index (YI) of the alignment film to a certain value or more, and thus has been found that the problems can be solved by the following invention. An image display device containing an image display part containing a liquid crystal layer containing a liquid crystal compound regulating a phase or a velocity of transmitted light, and in contact with the liquid crystal layer, a photo alignment layer regulating alignment of liquid crystal molecules contained in the liquid crystal compound, the alignment layer having a yellowness index (YI) of 0.001

公开(公告)号：US20150159087A1

公开(公告)日：2015-06-11

申请号：US14403760

申请日：2013-05-22

Applicant: DIC CORPORATION

Inventor： Haruki Ohishi ,  Shirou Taniguchi ,  Kunihiko Kotani ,  Kazunori Maruyama

IPC: C09K19/32 ,  C09K19/30

CPC classification number: C09K19/322 ,  C09K19/18 ,  C09K19/3068 ,  C09K19/3098 ,  C09K19/42 ,  C09K19/46 ,  C09K2019/301 ,  C09K2019/3016 ,  C09K2019/3063 ,  C09K2019/3075 ,  C09K2019/3077

Abstract: Provided are a liquid crystal composition having negative dielectric anisotropy and a liquid crystal display device that uses the liquid crystal composition. The present invention relates to a liquid crystal composition having a negative dielectric anisotropy (Δ∈) and useful as an electro-optic liquid crystal display material, and a liquid crystal display device that uses the liquid crystal composition. The liquid crystal composition contains one or more compounds represented by general formula (I) and one or more compounds represented by general formula (II). Since the rate of change in operation voltage versus temperature can be decreased by using the liquid crystal composition of the present invention, the invention is effective for improving the display quality in a low-temperature zone. Thus, the liquid crystal composition is suitable for use in vehicle-mounted displays and mobile appliances that are expected to be used in cold areas and outdoors.

Abstract translation: 提供具有负介电各向异性的液晶组合物和使用该液晶组合物的液晶显示装置。 本发明涉及具有负的介电各向异性（＆Dgr;∈）并且可用作电光液晶显示材料的液晶组合物和使用该液晶组合物的液晶显示装置。 液晶组合物含有一种或多种由通式（I）表示的化合物和一种或多种由通式（II）表示的化合物。 由于可以通过使用本发明的液晶组合物来降低操作电压对温度的变化率，所以本发明对于提高低温区域的显示质量是有效的。 因此，液晶组合物适用于预期在寒冷地区和室外使用的车载显示器和移动电器。

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：US20190064242A1

公开(公告)日：2019-02-28

申请号：US15998531

申请日：2018-08-16

Applicant: DIC Corporation

Inventor： Hiroshi Hasebe ,  Shirou Taniguchi ,  Wei Wu

IPC: G01R29/14 ,  G02F1/1343 ,  G02F1/1334 ,  G02F1/137 ,  G02F1/1333 ,  C09K19/30 ,  C09K19/60

Abstract: The inventors have intensively studied and found that an electrostatic indicator that can visualize the magnitude of its charge potential can be provided by using a liquid crystal composition and forming multiple regions in which the alignment of the molecules of the liquid crystal composition differently changes in response to electric potential. Furthermore, there is provided an electrostatic indicator that can be placed in a two-dimensional or three-dimensional manner to also visualize spatial distribution of high or low charge potential.