Negative liquid crystal composition and application thereof
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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: 2016-02-17
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
[0147] 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:
[0148] Table 3 liquid crystal composition formula and test performance thereof
[0149]
Embodiment 2
[0155] 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:
[0156] Table 5 liquid crystal composition formula and test performance thereof
[0157]
Embodiment 3
[0163] 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:
[0164] Table 7 liquid crystal composition formula and test performance thereof
[0165]
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Abstract
The invention provides a negative liquid crystal composition. The negative liquid crystal composition includes at least one compound shown as a formula I, at least one compound shown as a formula II, and at least one compound shown as a formula III. The negative liquid crystal composition has the advantages of appropriate optical anisotropy and dielectric anisotropy, fast response speed, good resistance to UV and high temperature reliability. The invention also provides a crystal main body composition containing the above liquid crystal composition and liquid crystal media of one or more polymerizable compounds or RM materials. At the same time, the invention also provides a liquid crystal display device comprising the liquid crystal composition or liquid crystal media.
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 a night scene display method, among its representative methods, PC (phase change, phase change), TN (twistnematic, twisted nematic), STN (supertwisted nematic, super twisted nematic), ECB (electrically controlled birefringence, electrically controlled birefringence) can be cited ), OCB (optically compensated bend), IPS (in-plane switching, coplanar transformation), VA (vertical alignment, vertical alignment), CSH (color superhomeotropic, color super verti...
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