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Liquid crystal composition

A technology of liquid crystal composition and compound, which is applied in the direction of liquid crystal materials, chemical instruments and methods, etc., can solve the problems of resistivity reduction and achieve the effects of low viscosity, appropriate optical anisotropy, and fast response time

Inactive Publication Date: 2015-04-01
SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIALS CO LTD
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  • Abstract
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Problems solved by technology

[0020] (4) Greater dielectric anisotropy: The greater the dielectric anisotropy Δε, the smaller the threshold voltage of the liquid crystal, but the ions in the liquid crystal material are more likely to be precipitated and become free ions, resulting in a decrease in resistivity
But so far there is no single liquid crystal material used alone in liquid crystal displays that can meet the performance requirements without developing a composition with other performance characteristics

Method used

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Embodiment Construction

[0057] The present invention will be further described below in conjunction with specific examples, but the following examples are examples of the present invention, and the present invention is not limited to the following examples. Without departing from the gist or scope of the present invention, liquid crystal compositions with different thresholds, clearing points, and birefringence characteristics can be modified or improved by adjusting the content of each component in the liquid crystal composition of the present invention. , which is obvious to those skilled in the art. The methods are conventional methods unless otherwise specified. The materials can be obtained from public commercial sources unless otherwise specified.

[0058] Each component used in the following examples can be synthesized by known methods, or can be obtained through commercial channels. These synthesis techniques are conventional, and the obtained liquid crystal compounds are tested to meet the...

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Abstract

The invention discloses a nematic-phase liquid crystal composition which is formed by two components. The first component comprises one or more chemicals in a structural formula I, and the second component comprises one or more chemicals in a structural formula II and one or more chemicals in a structural formula III. The liquid crystal composition is excellent in performance, has a wide nematic-phase temperature range, proper positive dielectric anisotropism, proper optical anisotropism, high charge retention rate, high response speed and low rotary viscosity and can maintain high charge retention rate. The composition has a wide application prospect and application value in liquid crystal display and is especially suitable for manufacturing active matrix IPS-TFT displayers with a high response speed.

Description

technical field [0001] The invention relates to a positive dielectric liquid crystal composition, which has the characteristics of high charge retention rate, low power consumption, low rotational viscosity and fast response time, and is suitable for active matrix electro-optic elements and liquid crystal displays. technical background [0002] Liquid crystal display elements are divided into the following modes according to the display mode: twisted nematic (TN) mode, super twisted nematic (STN) mode, in-plane mode (IPS), and vertical alignment (VA) mode. Regardless of the display mode, the liquid crystal composition needs to have the following characteristics. [0003] (1) Chemical and physical properties are stable. [0004] (2) Low viscosity. [0005] (3) Have a suitable Δε. [0006] (4) Appropriate refractive index Δn. [0007] (5) Good compatibility with other liquid crystal compounds [0008] With the maturity of TFT technology in the early 1990s, color liquid cr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K19/44
Inventor 孙轩非温刚丰景义高红茹翟媛媛贾鹏忠
Owner SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIALS CO LTD
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