SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIALS CO LTD
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[0005] The purpose of the present invention is to provide a negative dielectric anisotropy liquid crystal composition, and a liquid crystal display element or a liquid crystal display comprising the liquid crystal composition, aiming at solving the problem of slow response time of the negative dielectric anisotropy liquid crystal composition, It uses the first component composed of one or more compounds represented by formula I, and the second component composed of one or more polymerizable compounds to reduce the rotational viscosity of the liquid crystal composition with negative dielectric anisotropy and increase the responding speed
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preparation example Construction
[0084] The preparation method of liquid crystal medium comprises the following steps:
[0085] (1) Arrange the monomers used in order;
[0086](2) Place the stainless steel beaker on the balance, and put the monomer into the stainless steel beaker with a spoon;
[0087] (3) Add monomer liquid crystals by required weight in turn;
[0088] (4) Place the stainless steel beaker with the added material on the magnetic stirring apparatus to heat and melt;
[0089] (5) After most of the mixture in the stainless steel beaker is melted, add a magnetic rotor into the stainless steel beaker, stir the liquid crystal mixture evenly, and obtain the liquid crystal medium after cooling to room temperature.
[0090] The structure of the liquid crystal monomer in the embodiment of the present invention is represented by a code, and the code representation methods of the liquid crystal ring structure, terminal group, and linking group are shown in Table 1 and Table 2 below.
[0091] Table 1 C...
Embodiment 1
[0100] The formula and corresponding properties of the liquid crystal composition are shown in Table 3 below.
[0101] Table 3 The formula and corresponding performance of the liquid crystal composition of embodiment 1
[0102]
[0103] The content of each liquid crystal compound in Example 1 is calculated based on the total content of the compounds represented by Formula I, Formula III, Formula IV, and Formula V in the liquid crystal composition of Example 1 as 100%.
Embodiment 2
[0105] The formula and corresponding properties of the liquid crystal composition are shown in Table 4 below.
[0106] Formulation and corresponding performance of the liquid crystal composition of table 4 embodiment 2
[0107]
[0108] The content of each liquid crystal compound in Example 2 is calculated based on the total content of the compounds represented by Formula I and Formula III in the liquid crystal composition of Example 2 as 100%.
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Abstract
The invention relates to a negative dielectric anisotropic liquid crystal composition, a liquid crystal display element and a liquid crystal display. The negative dielectric anisotropic liquid crystalcomposition comprises a first component consisting of one or more compounds shown in formula I and a second component consisting of one or more polymerizable compounds, and the negative dielectric anisotropic liquid crystal composition disclosed by the invention has low rotational viscosity, fast response speed and good stability, is very suitable for manufacturing liquid crystal display elements, and is especially suitable for PS(polymer stability) or PSA(polymer stable alignment) type liquid crystal displays.
Description
technical field [0001] The invention relates to the technical field of liquid crystal display. More specifically, it relates to a liquid crystal composition with negative dielectric anisotropy, a liquid crystal display element and a liquid crystal display. 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 ap...
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