Liquid crystal composition with very low negative dielectric anisotropy and application of liquid crystal composition
A liquid crystal composition, anisotropic technology, applied in liquid crystal materials, nonlinear optics, optics, etc., to achieve the effect of wide nematic phase temperature range, low threshold voltage, and high-definition bright spots
Inactive Publication Date: 2018-11-16
烟台丰蓬液晶材料有限公司
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Problems solved by technology
However, the ideal liquid crystal phase cannot be easily obtained in this way, because the liquid crystal material needs to have a large negative dielectric anisotropy and sufficient long-term stability
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Embodiment E1
[0079] The formula composition and parameter of table 2 embodiment E1
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Embodiment E2
[0082] The formula composition and parameter of table 3 embodiment E2
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Embodiment E3
[0085] The formula composition and parameter of table 4 embodiment E3
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[0087]
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The invention relates to liquid crystal composition with negative dielectric anisotropy. The liquid crystal composition comprises liquid crystal compounds shown in formulas I, II, III, IV, V and VI. The liquid crystal composition has very large dielectric anisotropy absolute value, higher clearing point, better high-temperature stability and low-temperature intersolubility, higher anti-UV capability, lower viscosity, short response time and high VHR (voltage holding ratio) and resistivity. The liquid crystal composition can be applied to display modes such as VA (vertical alignment), MVA (multidomain vertical alignment), PVA (patterned vertical alignment), FFS (fringe-field switching), PSVA ((polymer sustained vertically alignment), IPS (in-plane switching), TFT (thin film transistor) andthe like.
Description
technical field [0001] The present invention relates to a kind of negative dielectric anisotropy liquid crystal composition containing the biphenyl type compound of fluorine, trifluoromethoxy substituting group at the same time, the present invention also relates to a kind of this negative dielectric anisotropy liquid crystal composition in liquid crystal applications in the display field. Background technique [0002] Liquid crystal display technology has been widely used in various sizes of displays in today's society. Small-sized displays such as calculators, mobile phones, meters, etc.; medium-sized displays such as computer monitors; large-sized displays such as TVs. Liquid crystal display has the advantages of high resolution, high brightness and flat panel display, light weight, low energy consumption and even flexible display. Therefore, LCD will continue to play an important role in the information technology age. [0003] The early liquid crystal display mode wa...
Claims
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IPC IPC(8): C09K19/44G02F1/1333
CPCC09K19/44G02F1/1333
Inventor 金晓宇丰佩川史子谦张德超房凤梅孙燕付博
Owner 烟台丰蓬液晶材料有限公司
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