A liquid crystal composition suitable for coplanar switching mode and its application
A liquid crystal composition, coplanar conversion technology, applied in liquid crystal materials, optics, instruments, etc., can solve the problems of difficult modulation, high resistivity, low melting point, etc.
Active Publication Date: 2016-05-18
JIANGSU HECHENG DISPLAY TECH CO LTD
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Problems solved by technology
[0007] However, based on the complexity of liquid crystal mixed crystal modulation, from the perspective of liquid crystal composition material modulation, the various properties of the material (low optical anisotropy value, high dielectric anisotropy value, high resistivity, Low rotational viscosity, low melting point, high clearing point, good thermal stability and UV stability, etc.) are mutually restrained. Improving the performance of one aspect is often accompanied by the decrease of performance on the other. Modulating all aspects Liquid crystal compositions with suitable properties are often very difficult
Method used
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Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0138] The liquid crystal composition of Example 1 was formulated according to the compounds and weight percentages listed in Table 5, and it was filled between the two substrates of the liquid crystal display for performance testing. The test data are shown in the following table:
[0139] Table 5 liquid crystal composition formula and test performance thereof
[0140]
Embodiment 2
[0142] The liquid crystal composition of Example 2 was prepared by each compound listed in Table 6 and the weight percentage, which was filled between the two substrates of the liquid crystal display for performance testing. The test data are shown in the following table:
[0143] Table 6 liquid crystal composition formula and test performance thereof
[0144]
Embodiment 3
[0146] The liquid crystal composition of Example 3 was formulated according to the compounds and weight percentages listed in Table 7, which was filled between the two substrates of the liquid crystal display for performance testing. The test data are shown in the following table:
[0147] Table 7 liquid crystal composition formula and test performance thereof
[0148]
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Abstract
Provided in the present invention is a liquid crystal composition applicable in an in-plane switching mode. The liquid crystal composition comprises: accounting for 25% to 55% of the total weight of the liquid crystal composition, one or more compounds as represented by formula I; accounting for 20% to 40% of the total weight of the liquid crystal composition, one ore multiple compounds as represented by formula II; accounting for 5% to 25% of the total weight of the composition, one or multiple compounds as represented by formula III; accounting for 5% to 20% of the total weight of the liquid crystal composition, one or multiple compounds as represented by formula IV; and, accounting for 5% to 25% of the total weight of the liquid crystal composition, one or multiple compounds as represented by formula V. An in-plane switching mode liquid crystal display component that uses the liquid crystal composition has the advantages of fast response, high-definition highlights, and low driving voltage. Also provided in the present invention is an electro-optical liquid crystal display. The liquid crystal display comprises the liquid crystal composition described in the present invention.
Description
technical field [0001] The invention relates to a liquid crystal composition applied to a liquid crystal display element, especially a liquid crystal composition applied to an active matrix driven in-plane switching mode (IPS) liquid crystal display element and its application in an electro-optic liquid crystal display. Background technique [0002] The liquid crystal display element works by utilizing the optical anisotropy and dielectric anisotropy possessed by the liquid crystal material itself, and has been widely used at present. Using the different characteristics and working modes of liquid crystal materials, the device can be designed into various working modes. Among them, TN mode (twistnematic, twisted nematic mode) and STN mode (supertwisted nematic, super twisted nematic mode) are commonly used in conventional displays. ), ECB mode (electrically controlled birefringence, electrically controlled birefringence mode), OCB mode (optically compensated bend, optically ...
Claims
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IPC IPC(8): C09K19/44C09K19/46G02F1/1333
CPCC09K19/44C09K19/20C09K19/3066C09K2019/0466C09K2019/123C09K2019/3004C09K2019/3016C09K2019/3019C09K2019/3078
Inventor 丁文全戴慧娟谢磊吴凤宋晓龙陈昭远
Owner JIANGSU HECHENG DISPLAY TECH CO LTD