High-gradient quick-response negative dielectric anisotropy liquid crystal composition and application thereof

A liquid crystal composition, anisotropic technology, applied in liquid crystal materials, nonlinear optics, optics, etc., can solve the problem of steepness, response speed, and power consumption that cannot fully meet market demand, high steepness, low power consumption and fast response The characteristics cannot be taken into account at the same time to achieve the effects of good low-temperature mutual solubility, wide nematic phase temperature range, and large negative absolute value of dielectric anisotropy

Active Publication Date: 2020-09-01
YANTAI XIANHUA CHEM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0020] Although there are liquid crystal compositions with great negative dielectric anisotropy in the prior art, the characteristics of high steepness, low power consumption and fast response cannot be taken into account at the same time. For example, the compound proposed in CN108315017 has great The absolute value of negative dielectric anisotropy, but with the continuous advancement of technology, its steepness, response speed, power consumption and other aspects cannot fully meet the market demand

Method used

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  • High-gradient quick-response negative dielectric anisotropy liquid crystal composition and application thereof
  • High-gradient quick-response negative dielectric anisotropy liquid crystal composition and application thereof
  • High-gradient quick-response negative dielectric anisotropy liquid crystal composition and application thereof

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Embodiment E1

[0092] The formula composition and parameter of table 1 embodiment E1

[0093]

Embodiment E2

[0095] The formula composition and parameter of table 2 embodiment E2

[0096]

[0097]

Embodiment E3

[0099] The formula composition and parameter of table 3 embodiment E3

[0100]

[0101]

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Abstract

The invention relates to a high-gradient quick-response negative dielectric anisotropy liquid crystal composition and application thereof. The liquid crystal composition contains liquid crystal compounds shown as general formulas I, II, III, IV and V. The liquid crystal composition has an extremely large absolute value of negative dielectric anisotropy and also has high gradient, low viscosity andshort response time, and meanwhile, the liquid crystal composition has better stability and low-temperature intersolubility, stronger anti-UV (Ultraviolet) capability and high VHR (Very High Ratio) and resistivity, and can be applied to display modes such as VA (Vertical Alignment), MVA (Multi-Vertical Alignment), PVA (Polyvinyl Alcohol), FFS (Fringe Field Switching), PSVA, IPS (In-Plane Switching) and TFT (Thin Film Transistor).

Description

technical field [0001] The invention relates to a high-steep and fast-response negative dielectric anisotropy liquid crystal composition and an application thereof, belonging to the technical field of liquid crystal materials. 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 era. [0003] The early liquid crystal display mode was TN display. People used the TN electro-optic effect and integrated circuits to make it into a liquid crystal display device (TN-LCD), which opened up broad prospects...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K19/44C09K19/46G02F1/1333
CPCC09K19/44C09K19/46G02F1/1333
Inventor 孙云峰尹环房凤梅马锋董向波付博孙燕史子谦丰佩川
Owner YANTAI XIANHUA CHEM TECH CO LTD
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