公开(公告)号：US10723947B2

公开(公告)日：2020-07-28

申请号：US15568486

申请日：2016-04-21

Applicant: JIANGSU HECHENG DISPLAY TECHNOLOGY CO., LTD.

Inventor： Yunyun Liu ,  Wenming Han ,  Wenquan Ding ,  Pengfei Li ,  Haibin Xu ,  Lifang Yao ,  Di He ,  Wenyang Ma ,  Heming Zhang ,  Junqiang Zhang

IPC: G02F1/13 ,  C09K19/12 ,  C09K19/20 ,  C09K19/44 ,  C09K19/42 ,  C09K19/30 ,  G02F1/1333 ,  C09K19/32 ,  C09K19/34 ,  C09K19/04

Abstract: Provided is a liquid crystal composition, comprising: one or more compounds of general formula I accounting for 1-30% of the total weight of the liquid crystal composition; one or more compounds of general formula II accounting for 1-30% of the total weight of the liquid crystal composition; one or more compounds of general formula III accounting for 1-20% of the total weight of the liquid crystal composition; and one or more compounds of general formula IV accounting for 30-80% of the total weight of the liquid crystal composition. The liquid crystal composition has at least one of the following properties: a large specific resistance, a high voltage holding ratio, a suitable optical anisotropy, a large dielectric anisotropy, a small viscosity, a low threshold voltage, etc., and is also green and environmentally friendly. The liquid crystal composition is suitable for use in a liquid crystal display device, enabling the liquid crystal display device to have the following properties: a high voltage holding ratio, a short response time, a high contrast ratio, a low energy consumption, and being green and environmentally friendly, etc.

公开(公告)号：US12110437B2

公开(公告)日：2024-10-08

申请号：US18026456

申请日：2021-08-12

Applicant: Jiangsu Hecheng Display Technology Co., Ltd.

Inventor： Yunyun Liu ,  Di He ,  Shuang Xu ,  Haibin Xu ,  Lifang Yao ,  Yafei Yang ,  Zhenting Zhou ,  Dike Pan ,  Fei Zhao

IPC: G02F1/1333 ,  C09K19/06 ,  C09K19/12 ,  C09K19/18 ,  C09K19/20 ,  C09K19/30

CPC classification number: C09K19/3003 ,  C09K19/062 ,  C09K19/12 ,  C09K19/18 ,  C09K19/2007 ,  C09K19/3028 ,  C09K19/3048 ,  C09K19/3098 ,  C09K2019/122 ,  C09K2019/123 ,  C09K2019/181 ,  C09K2019/2035 ,  C09K2019/3004 ,  C09K2019/3009 ,  C09K2019/301 ,  C09K2019/3016 ,  C09K2019/3021 ,  C09K2019/3025 ,  C09K2019/303 ,  C09K2019/3036 ,  C09K2019/305 ,  C09K2019/3051 ,  C09K2019/3063 ,  C09K2019/3071 ,  C09K2019/3074 ,  C09K2019/3075 ,  C09K2019/3077 ,  C09K2019/3078 ,  C09K2019/3083

Abstract: The present invention provides a liquid crystal composition and a liquid crystal display device thereof. The liquid crystal composition comprises at least one compound of general formula I and at least one compound of general formula II. The liquid crystal composition has a larger vertical dielectric constant (ε⊥), a larger ratio of the vertical dielectric constant to the absolute value of dielectric anisotropy (ε⊥/|Δε|), a larger Kave value and a higher transmittance while maintaining an appropriate clearing point, an appropriate optical anisotropy, and an appropriate absolute value of the dielectric anisotropy, such that the liquid crystal display device comprising the same has a better contrast, a faster response speed and a better transmittance while maintaining an appropriate range of operating temperature and an appropriate threshold voltage.

公开(公告)号：US11827829B2

公开(公告)日：2023-11-28

申请号：US17359123

申请日：2021-06-25

Applicant: JIANGSU HECHENG DISPLAY TECHNOLOGY CO., LTD.

Inventor： Lifang Yao ,  Di He ,  Haibin Xu ,  Wenquan Ding ,  Shuang Xu

IPC: C09K19/30 ,  C09K19/12 ,  C09K19/18 ,  C09K19/20

CPC classification number: C09K19/3003 ,  C09K19/12 ,  C09K19/18 ,  C09K19/3048 ,  C09K19/3059 ,  C09K19/3068 ,  C09K2019/122 ,  C09K2019/123 ,  C09K2019/181 ,  C09K2019/2035 ,  C09K2019/3004 ,  C09K2019/305 ,  C09K2019/3009 ,  C09K2019/3016 ,  C09K2019/3063 ,  C09K2019/3071 ,  C09K2019/3075 ,  C09K2019/3077 ,  C09K2019/3078 ,  C09K2019/3083

Abstract: A liquid crystal composition containing a dibenzo derivative comprising a compound of general formula I and a compound of general formula II, and a liquid crystal display device containing the same, are disclosed. The liquid crystal composition is characterized by its excellent physical properties with respect to a liquid crystal display. The liquid crystal display device containing the liquid crystal composition has a good transmittance and a high contrast.

公开(公告)号：US11299674B2

公开(公告)日：2022-04-12

申请号：US16592104

申请日：2019-10-03

Applicant: Jiangsu Hecheng Display Technology Co., Ltd.

Inventor： Lifang Yao ,  Di He ,  Rui Jin

IPC: G02F1/1333 ,  C09K19/34 ,  C09K19/30 ,  C09K19/06 ,  C09K19/12

Abstract: The present invention provides a liquid crystal composition comprising: at least one compound of general Formula I; at least one compound of general Formula II; at least one compound of general Formula M and at least one compound of general Formula N. The present invention also provides a liquid crystal display device comprising the liquid crystal composition. The liquid crystal composition provided in the present invention has a higher optical anisotropy, a higher clearing point, a higher dielectric anisotropy, a high transmittance and a larger average elastic constant. When the liquid crystal composition is used in the IPS liquid crystal display device, the transmittance of the display device can be effectively improved, so that the display device has a good display performance while also having good energy-saving and environment-friendly characteristics.

公开(公告)号：US12110438B2

公开(公告)日：2024-10-08

申请号：US18012683

申请日：2021-06-25

Applicant: Jiangsu Hecheng Display Technology Co., Ltd.

Inventor： Di He ,  Wenquan Ding ,  Haibin Xu ,  Shuang Xu ,  Huijuan Dai ,  Lifang Yao

IPC: C09K19/34 ,  G02F1/1343 ,  G02F1/137

CPC classification number: C09K19/3491 ,  C09K19/3405 ,  C09K2019/3408 ,  G02F1/134363 ,  G02F1/13712

Abstract: A liquid crystal composition containing dibenzo derivatives for use in a liquid crystal display device includes at least one compound of general formula I and at least one compound of general formula II.

公开(公告)号：US10508237B2

公开(公告)日：2019-12-17

申请号：US15567973

申请日：2016-04-21

Applicant: JIANGSU HECHENG DISPLAY TECHNOLOGY CO., LTD.

Inventor： Wenyang Ma ,  Wenming Han ,  Haibin Xu ,  Wenquan Ding ,  Pengfei Li ,  Yunyun Liu ,  Di He ,  Lifang Yao ,  Heming Zhang

IPC: G02F1/1333 ,  C09K19/34 ,  C09K19/30 ,  C09K19/32 ,  C09K19/04

Abstract: Provided is a liquid crystal composition, comprising: 1-30% of one or more compounds of general formula I; 1-50% of one or more compounds of general formula II; 1-20% of one or more compounds of general formula III; 20-70% of one or more compounds of general formula IV; and 1-30% of one or more compounds of general formula V. The liquid crystal composition has properties such as a large maximum absolute transmittance, a high voltage holding ratio, better anti-UV properties, and high temperature reliability, and has a suitable optical anisotropy, a suitable dielectric anisotropy, and a relatively high clearing point, and is environmentally friendly. The liquid crystal composition is suitable for use in a liquid crystal display device, especially a transmissive liquid crystal display element, enabling the liquid crystal display device to have properties such as a high maximum absolute transmittance, a high voltage holding ratio, good anti-UV properties and high temperature reliability, and to be energy-saving and environmentally-friendly.

公开(公告)号：US11788010B2

公开(公告)日：2023-10-17

申请号：US17973646

申请日：2022-10-26

Applicant: Jiangsu Hecheng Display Technology Co., Ltd.

Inventor： Chenglong Sun ,  Yafei Yang ,  Tengyun Zhao ,  Rongrong Li ,  Huijuan Dai ,  Panpan Wang ,  Di He ,  Wenquan Ding

IPC: G02F1/1333 ,  C09K19/34

CPC classification number: C09K19/3491 ,  C09K19/3405 ,  C09K2019/3408

Abstract: A liquid crystal composition includes at least one compound of general formula F and at least one compound of general formula N. A liquid crystal display device includes the liquid crystal composition. The liquid crystal composition has a larger K value, a smaller rotational viscosity, a higher VHR value, a longer low temperature storage time and a shorter response time while maintaining an appropriate clearing point, an appropriate optical anisotropy, and an appropriate absolute value of dielectric anisotropy, such that the liquid crystal display device including the liquid crystal composition has a better contrast, a wider temperature range for application, a faster response speed, a better contrast and a higher reliability.

公开(公告)号：US11634640B2

公开(公告)日：2023-04-25

申请号：US16632677

申请日：2018-09-25

Applicant: Jiangsu Hecheng Display Technology Co., Ltd.

Inventor： Li Wang ,  Haibing Xu ,  Pengfei Li ,  Di He ,  Rui Jin

IPC: C09K19/44 ,  G02F1/1333 ,  C09K19/12 ,  C09K19/30

Abstract: A liquid crystal composition includes at least one compound of general formula I, at least one compound of general formula II and at least one compound of general formula III. The liquid crystal composition has a higher optical anisotropy, the relatively large elastic constants K11 and K33 while maintaining a relatively high clearing point, an appropriate dielectric anisotropy and a better low-temperature intersolubility. A liquid crystal display device which includes the liquid crystal composition has advantages of a fast response, a high contrast and a wide temperature range, thereby having a good display effect and a large range of applicability.

公开(公告)号：US20210222066A1

公开(公告)日：2021-07-22

申请号：US16755204

申请日：2018-12-11

Applicant: Jiangsu Hecheng Display Technology Co., Ltd.

Inventor： Wenming Han ,  Haibin Xu ,  Wenqi Zhang ,  Di He

IPC: C09K19/34 ,  C07D319/06

Abstract: A liquid crystal composition includes the compound of general formula I, and a photoelectric display device also includes the liquid crystal composition of general formula I. The compound of general formula I enables the liquid crystal composition including the same to maintain larger dielectric anisotropy, have a desired level of optical anisotropy, higher photo-thermal stability and nematic phase stability, and have a wide range of applicabilities, especially applicable to the IPS-type and TN-TFT-type liquid crystal display devices.

公开(公告)号：US20200048554A1

公开(公告)日：2020-02-13

申请号：US16344847

申请日：2017-10-27

Applicant: Jiangsu Hecheng Display Technology Co., Ltd.

Inventor： Di He ,  Wenming Han ,  Wenquan Ding ,  Haibin Xu ,  Heming Zhang ,  Junqiang Zhang ,  Yafei Yang ,  Yunyun Liu ,  Li Wang ,  Liwei Wang

IPC: C09K19/44 ,  C09K19/52 ,  C09K19/30 ,  C09K19/32 ,  C09K19/34 ,  C09K19/20 ,  C09K19/12

Abstract: The present invention provides a liquid crystal composition, comprising, 14-30% of one or more compounds of general Formula I, 8-30% of one or more compounds of general Formula II, 13-58% of one or more compounds of general Formula III, and 20-65% of one or more compounds of general Formula IV, on the basis of the total weight of the liquid crystal composition. The liquid crystal composition of the present invention has a higher retardation, a higher transmittance, a larger optical anisotropy, a proper clearing point, a lower rotational viscosity and a good low-temperature storage stability, and is applicable to liquid crystal display devices to meet the rapid response required by a liquid crystal display, and ensure good display of the liquid crystal display in a harsh environment.