Liquid crystal composition, liquid crystal display element and liquid crystal display
A technology for liquid crystal compositions and compounds, applied in liquid crystal materials, instruments, chemical instruments and methods, etc., can solve the problems of high driving voltage, imperfection, slow response time, etc., and achieve high dielectric anisotropy and good optoelectronic properties. , the effect of fast response speed
Active Publication Date: 2019-04-19
SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIALS CO LTD
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Problems solved by technology
[0004]
However, the liquid crystal medium used in the display elements of the active matrix addressing mode such as VA mode is not perfect. Compared with the display elements with positive dielectric anisotropy, the dielectric is relatively small, and the response time is relatively slow. Disadvantages such as relatively high voltage, and it is more prone to problems such as poor display and afterimages
Method used
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Embodiment 1
[0068]
[0069]
[0070] As can be seen from the comparison of Example 1 and Comparative Example 1, compared with the liquid crystal composition of Comparative Example 1 that does not contain the compound shown in Formula IV, the liquid crystal composition of Example 1 containing the compound shown in Formula IV is in On the basis of maintaining clearing point, dielectric constant and other properties, the rotational viscosity is obviously reduced, and the refractive index is obviously increased.
Embodiment 2
[0072]
[0073]
Embodiment 3
[0075]
[0076]
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The invention relates to a liquid crystal composition, a liquid crystal display element comprising the liquid crystal composition and a liquid crystal display, and belongs to the field of liquid crystal displaying, wherein the liquid crystal composition comprises one or more compounds represented by formula i, one or more compounds shown in formula II, one or more compounds represented by formulaIII, and one or more compounds represented by formula IV; the liquid crystal composition has low rotational viscosity, good photoelectric performance, high dielectric anisotropy and high response speed.
Description
technical field [0001] The invention belongs to the field of liquid crystal display, and more specifically relates to a liquid crystal composition, a liquid crystal display element and a liquid crystal display containing the liquid crystal composition. Background technique [0002] Thin film transistor liquid crystal display (TFT-LCD) has gone through a long period of basic research. After realizing mass production and commercialization, it has become a mainstream product in LCD applications due to its advantages of lightness, lightness, environmental protection, and high performance: whether it is a small size Mobile phone screens, large-sized notebook computers (Notebook PC) or monitors (Monitor), and large-scale LCD TVs (LCD-TV), TFT-LCD applications can be seen everywhere. [0003] The early commercial TFT-LCD products basically adopted the TN display mode, and the biggest problem was the narrow viewing angle. With the increase of product size, especially in the applica...
Claims
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IPC IPC(8): C09K19/44C09K19/46G02F1/1333
CPCG02F1/1333C09K19/44C09K19/46
Inventor 张冠超王一平高红茹梁瑞祥温刚李倩王雪熊慧茹
Owner SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIALS CO LTD
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