9results about How to "Large elastic constant" patented technology

The invention relates to the technical field of liquid crystal materials, in particular to a liquid crystal composition and application thereof.The liquid crystal composition comprises one or more compounds with the structure shown in the general formula I, one or more compounds with the structure shown in the general formula II and one or more compounds with the structure shown in the general formula III, and one or more compounds with structures as shown in a general formula IV. The liquid crystal composition provided by the invention has the excellent properties of low rotary viscosity, large elastic constant, large optical anisotropy, high response speed, good low-temperature intersolubility and the like, can effectively improve the response speed of a liquid crystal display, and can be used for fast-response liquid crystal display of multiple display modes; when the liquid crystal composition is used in a VA, IPS or FFS mode display, the display effect of a liquid crystal display can be obviously improved, and the liquid crystal composition is particularly suitable for IPS and FFS mode liquid crystal displays.

The invention discloses a liquid crystal composition which comprises one or more compounds as shown in a formula I and # imgabs0. The invention provides the liquid crystal composition, on the basis of keeping proper dielectric anisotropy and optical anisotropy, the liquid crystal composition has relatively small rotary viscosity, relatively large elastic constant, good low-temperature intersolubility, especially relatively high low-temperature response speed and good high-temperature resistance and UV resistance; the liquid crystal composition can be used for developing liquid crystal display elements or liquid crystal displays which have higher response speed and wider display temperature range and can effectively improve residual images.

The present invention discloses a positive variable frequency display liquid crystal material, belonging to the technical field of variable frequency display materials. The material, calculated by the total mass fraction of 100%, includes the following components: at least one or more compounds having the structure shown in general formula I, with a mass fraction of 1% to 25%; at least one or more compounds having the structure shown in general formula II, with a mass fraction of 2% to 70%; at least one or more compounds having the structure shown in general formula III, with a mass fraction of 2% to 40%; at least one or more compounds having the structure shown in general formula IV, with a mass fraction of 2% to 35%. The material of the present invention has a large elastic constant and a low rotational viscosity, can respond quickly and is suitable for different usage scenarios.

The invention belongs to the technical field of liquid crystal materials, and particularly relates to a liquid crystal composition and a liquid crystal display element or a liquid crystal display containing the liquid crystal composition. The invention discloses a liquid crystal composition which comprises one or more compounds as shown in a formula I and one or more compounds as shown in a formula II. The liquid crystal composition disclosed by the invention has good low-temperature performance, relatively small rotary viscosity gamma 1 and relatively large elastic constant K, can be used for developing a liquid crystal display element or a liquid crystal display with high contrast and quick response, and is particularly suitable for a Gaming MNT / NB type liquid crystal display element or a liquid crystal display with quick response. # imgabs0 #

The present invention relates to a polymerizable liquid crystal composition and a display device thereof, and belongs to the field of liquid crystal materials. The polymerizable liquid crystal composition comprises at least one compound having a structure shown in general formula I: at least one compound shown in general formula P: at least one compound shown in general formula II: at least one compound shown in general formula III: and at least one compound shown in general formula M, wherein compound M is selected from compounds represented by general formula M-I and / or M-II: The liquid crystal composition of the present invention has very low rotational viscosity, good phase performance and good low-temperature performance, and can form a lower pretilt angle after UV irradiation, has less RM residue, lower threshold voltage and faster response time, and the formed pretilt angle has long-term stability under high and low temperature conditions, and can meet the requirements of liquid crystal display devices for low power consumption and good display effect.

This invention provides a liquid crystal composition, a liquid crystal display device comprising the same, and applications thereof. The liquid crystal composition of this invention comprises at least one compound of general formula I, at least one compound of general formula F, at least one compound of general formula M, and at least one compound of general formula N. In the liquid crystal composition of this invention, through the specific structure and content of the compounds, it maintains appropriate dielectric anisotropy, good optical anisotropy, and good clearing point, while possessing a large elastic constant and high transmittance; thus, the liquid crystal display device comprising the same has a fast response speed and a high contrast ratio; the liquid crystal composition of this invention is suitable for application in fast-response display modes such as VA, PSVA, IPS, and NFFS.

The invention relates to the technical field of liquid crystal display, in particular to a liquid crystal composition containing high-reliability thiophene monomers and application of the liquid crystal composition, the liquid crystal composition comprises a deuterated thiophene compound, has low rotary viscosity and large elastic constant, has excellent reliability, and can be applied to liquid crystal display. The response speed of the liquid crystal display can be obviously improved, and the occurrence probability of the afterimage problem in a panel can be effectively reduced.

The invention discloses a liquid crystal compound containing 2, 5-difluorobenzyne, a synthesis method and a liquid crystal composition. The structure of the liquid crystal compound containing 2, 5-difluorobenzyne is shown as a formula I in the specification. The invention further discloses a liquid crystal composition with the structure shown in the general formula I. According to the liquid crystal compound disclosed by the invention, after two fluorine substituents are introduced into a specific position of a benzene ring, the liquid crystal compound has remarkably improved liquid crystal phase transition temperature characteristics, such as the characteristics of wide nematic phase liquid crystal temperature region, low melting point and high clearing point; the low-temperature intermiscibility is better, and the rotary viscosity is low; in addition, the low dielectric loss characteristic and the large dielectric anisotropy are achieved at the high frequency; meanwhile, the high birefringence is also realized. The method is suitable for preparing devices such as microwave antennas and liquid crystal optical devices. # imgabs0 #

The present invention discloses a liquid crystal composition with negative dielectric anisotropy and its application, wherein the liquid crystal composition with negative dielectric anisotropy comprises at least one compound represented by general formula I, at least one compound represented by general formula M, and at least one compound represented by general formula C. The present invention has the following beneficial effects: the liquid crystal composition containing a tetracyclic terminal olefin compound has a lower rotational viscosity, can achieve a fast response, and has a larger elastic constant, good low-temperature mutual solubility and moderate optical anisotropy, can adapt to different cell thickness designs, and obtain a good display effect.