Shijiazhuang Chengzhi Yonghua Display Material Co., Ltd.

Shijiazhuang Chengzhi Yonghua Display Materials Co., Ltd.

Symbow Medical Technology Co., Ltd.

Shijiazhuang Chenzhi Yonghua Display Materials Co., Ltd.

Lei Zhao

Guoliang Yun

Ming Li

Xing Zhang

Jinsong Meng

Hubo Zhang

Gang Wen

Kui Wang

Ruixiang Liang

Ruimao Hua

Hongru Gao

Wen Hai Lu

Jia Deng

Guo Liang Yun

YanLi Dong

Zhian Liang

Mingxia Wang

Wei Zhang

Zhengqiang Li

Ke-Lun Shu

Wenxiao Xing

Li Zhang

YunXia Qiao

Yongfeng Bao

Guoliang Yuan

Yanli Dong

Lianbo Mao

Ze Feng Hou

Wei Wei

Jingsong Meng

Rui Mao Hua

Zefeng Hou

Wenfei Liu

Huagen Liu

Zhiliang Shi

Yuanyuan Zhai

Fangmiao Zhang

Jin Song Meng

Fang Miao Zhang

The present invention discloses a compound of which a structural formula thereof is represented as the following formula: The compound disclosed by the present invention can be used as a liquid crystal compound and overcomes the problem that solubility of the traditional dibenzothiophene-class liquid crystals is poor, and thus can be better applied to the liquid crystal material field. The present invention further discloses a liquid crystal medium containing the compound and an application thereof.

Compound, liquid crystal medium containing the compound and application thereof

Provided are a difluoromethoxy-bridge liquid crystal compound containing methyl-substituted 2,3-difluorophenyl, a liquid crystal composition containing the compound, and a liquid crystal display element and a liquid crystal display, wherein said liquid crystal composition is represented by the following formula I: wherein the difluoromethoxy-bridge liquid crystal compound containing methyl-substituted 2,3-difluorophenyl not only has a high clearing point (CP) and a prominent low-temperature miscibility with other liquid crystals, but also has a good stability to ultraviolet light, stability to high temperatures, and particularly also a high vertical dielectric constant (&#x3b5;), and may be applied to the formulation of various types of liquid crystal compositions, and it is particularly prominent that the compound has the advantages of both a good low-temperature miscibility and a high vertical dielectric constant (&#x3b5;).

Difluoromethoxy-bridge liquid crystal compound containing methyl-substituted 2,3-difluorophenyl and crystal composition

Disclosed is a liquid crystal composition comprising one or more compounds represented by formula I and/or formula II and one or more compounds represented by formula III: wherein the definition of each substituent is given. The composition involved in the present invention has a low viscosity &#x3b3;, a high clearing point Tni and a large optical anisotropy &#x394;n, and can realize a rapid response of liquid crystal display.

Liquid crystal composition

Disclosed is a polymerizable compound having a structural formula as represented by the following formula I: The polymerizable compound disclosed in the present invention has a plurality of ring systems, and the entire molecular structure thereof is curved and twisted. The present invention further discloses a liquid crystal medium comprising the polymerizable compound, the polymerizable compound provided by the present invention has an appropriate polymerization rate in the liquid crystal medium, and the liquid crystal medium can be well applied to a PS-(polymer stabilized)- or PSA-(polymer stabilized alignment)-type liquid crystal display device. Further disclosed is a liquid crystal display device prepared from the liquid crystal medium.

Polymerizable compound, liquid crystal medium containing same and liquid crystal display device

Disclosed are a liquid crystal composition and a display element or display using the liquid crystal composition, wherein the liquid crystal composition contains one or more compounds of general formulas I, II and III, The liquid crystal composition disclosed in the present invention has an excellent performance, an optical anisotropy in the range of 0.080 to 0.150, a low rotary viscosity, a fast response time, and good chemical, optical and thermal stabilities, and is very suitable for manufacturing liquid crystal display elements, particularly suitable for active matrix display elements, such as active matrix displays using a VA, FFS or IPS mode.

Liquid crystal composition of negative monomer containing cyclopentyl cyclohexenyl and liquid crystal display element or liquid crystal display thereof

Disclosed are a chiral compound, a liquid crystal composition containing the chiral compound, an optically anisotropic body and a liquid crystal display device. The structural formula of said chiral compound is as represented by the following formula I: The chiral compound has a high HTP value and a good solubility; a highly helical, twisted liquid crystal composition can be prepared by adding a small amount of the chiral compound; reducing the addition amount of the chiral compound can reduce the negative effect of the chiral compound on the parameters of the liquid crystal composition; under the conditions of the same addition ratio and the same helical pitch, the chiral compound can reduce the response time of the liquid crystal composition; in addition, the chiral compound has a simple structure and greatly reduces the synthesis cost.

Chiral compound, liquid crystal composition containing the same, optically anisotropic body, and liquid crystal display device

Disclosed are liquid crystal compounds of cycloalkyl-containing dibenzofuran derivatives, a preparation method therefor and use thereof. The compounds are as represented by formula I. In the molecular structures of the compounds of formula I provided by the present invention, liquid crystal compounds of cycloalkyl terminal group-containing dibenzofuran derivatives, compared with those having flexible alkyl chains as terminal groups, exhibit better intersolubility, and thus the use of a compound as represented by formula I provided by the present invention can improve the intersolubility of a liquid crystal compound and extend the application range of a liquid crystal mixture, producing an important application value. 

Liquid crystal compounds of cycloalkyl-containing dibenzofuran derivatives, preparation method therefor and use thereof

The present disclosure discloses a liquid crystal compound and a liquid crystal composition. The liquid crystal compound has a general structural formula as represented by formula I. The liquid crystal composition provided by the present disclosure has a lower rotary viscosity &#x3b3;, can achieve a quick response, and further has an appropriate dielectric anisotropy &#x394;&#x2208;, an appropriate optical anisotropy &#x394;n, a high stability to heat and light, a high VHR numerical value especially in the case where the liquid crystal is under harsh conditions, and a stability to electric field and electromagnetic radiation. As a liquid crystal material for use in thin film transistor techniques (TFT-LCD), the material further has the properties of a wider nematic phase temperature range, an appropriate birefringence anisotropy, a very high electrical resistivity, a good anti-ultraviolet performance, a high charge holding rate, a low vapor pressure etc. 

Liquid crystal compound and liquid crystal composition

The present invention discloses liquid crystal compounds having dibenzopyran derivatives with cycloalkyl groups, and preparation methods and application thereof. The liquid crystal compounds having dibenzopyran derivatives with cycloalkyl terminal groups, shown in formula I, exhibit better miscibility and a very large negative dielectric constant, compared to those having a flexible alkyl chain as a terminal group, therefore the compounds of the present invention, shown in formula I, may improve the miscibility of liquid crystal compounds and broaden the application range of liquid crystal mixtures. In addition, the compounds may also increase the negative dielectric constants of liquid crystal mixtures, having an important application value. 

Liquid crystal compounds containing dibenzopyran derivatives of naphthenic base and application thereof

A negative dielectric anisotropic liquid crystal compound containing 2,3-difluorophenyl, and a preparation method and use thereof are disclosed. The compound has a general structural formula as shown in Formula I. The negative dielectric anisotropic liquid crystal compound has a negative dielectric anisotropy (&#x394;&#x2208;), and has cyclobutyl or cyclopentyl as a terminal group. Compared with conventional liquid crystal compounds with a flexible alkyl chain as a terminal group, the compound of Formula I according to the present invention has the advantage of high clearing point, and enables extension of the application range of a liquid crystal mixture because a positive correlation exists between the clearing points of the liquid crystal mixture and monomer liquid crystal compounds. In addition, the compound can increase the absolute value of the negative dielectric constant of the liquid crystal mixture, thus having an important application value. 

Negative dielectric anisotropic liquid crystal compounds containing 2,3-difluorophenyl group, and preparation method and use thereof

This invention relates to liquid crystal compound of formula I containing benzene derivatives group that hydrogen substituted by deuterium. Liquid crystal compounds of formula I have not only large positive dielectric anisotropy, but also moderate optical anisotropy and driving voltage, thereby having great significance to formulate a liquid crystal mixture. A liquid crystal mixture containing such type of liquid crystal compounds can be applied in various display devices, which is particularly suitable for TN and STN display devices, and can also be used in IPS and VA display devices. 

Liquid crystal compounds containing deuterium

This patent indicates a type of system and method for controlling scanning planes of imaging device, it includes: tracer, on which a tracer coordinate system is built, is fixed on the target which is to be scanned; a tracking device, on which a tracking device coordinate system is built, is used to get the position and orientation of the tracer in the tracking device coordinate system and convert the known position and orientation of the target which is to be scanned from the tracer coordinate system to the tracking device coordinate system; an imaging device, on which an imaging device coordinate system is built, is used to scan the position and orientation of the said target to be scanned in the imaging device coordinate system to form images; a conversion module, which is preset in the tracking device or the imaging device, is used to convert the position and orientation of the target which is to be scanned from the tracking device coordinate system to the imaging device coordinate system; when the conversion module is preset in the tracking device, the tracking device transfers the position and orientation of the target which is to be scanned in the tracking device coordinate system to the imaging device. This patent has the ability to provide high efficiency, and high precision when scanning target image, it can be used at any type of image devices.

System and method for controlling scanning planes of imaging device

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Shijiazhuang, China

Lei Zhao