Negative liquid crystal composition and its application
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A liquid crystal composition, negative liquid crystal technology, applied in liquid crystal materials, nonlinear optics, optics, etc., can solve problems such as image retention, achieve fast pretilt angle, reduce UV exposure time and/or UV intensity and/or UV Radiation Dose, Time and Cost Effective Effects
Active Publication Date: 2017-10-24
JIANGSU HECHENG DISPLAY TECHCO
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[0015] In PSA displays, an additional image sticking effect due to the presence of residual unpolymerized RM material may be observed
Method used
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Embodiment 1
[0138] The liquid crystal composition of Example 1 was prepared by each compound listed in Table 3 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:
[0139] Table 3 liquid crystal composition formula and test performance thereof
[0140]
Embodiment 2
[0146] The liquid crystal composition of Example 2 was prepared by each compound listed in Table 5 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:
[0147] Table 5 liquid crystal composition formula and test performance thereof
[0148]
Embodiment 3
[0154] 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:
[0155] Table 7 liquid crystal composition formula and test performance thereof
[0156]
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Abstract
The invention provides a negative liquid crystal composition, which comprises at least one compound of general formula I, at least one compound of general formula II, and at least one compound of general formula III; The liquid crystal composition has suitable optical anisotropy and dielectric anisotropy, faster response speed, better UV resistance performance and high temperature reliability. The present invention also provides a liquid crystal medium comprising the above liquid crystal composition as a liquid crystal host composition and one or more polymerizable compounds or RM materials. Meanwhile, the present invention also provides a liquid crystal display device comprising the liquid crystal composition or liquid crystal medium.
Description
technical field [0001] The invention relates to a negative liquid crystal composition with faster response speed, better UV resistance performance and high temperature reliability, and the application of the liquid crystal composition in liquid crystal display elements. Background technique [0002] Liquid crystal display elements can be used in various home appliances represented by clocks and electronic calculators, measuring equipment, automotive panels, word processors, computers, printers, televisions, and the like. As the night scene display method, among its representative methods, PC (phase change, phase change), TN (twist nematic, twisted nematic), STN (supertwisted nematic, super twisted nematic), ECB (electrically controlled birefringence) can be cited. , electronically controlled birefringence), OCB (optically compensated bend, optical compensation bending), IPS (in-plane switching, coplanar transformation), VA (vertical alignment, vertical alignment), CSH (color...
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