Low viscosity, fast response and low power consumption negative liquid crystal composition and liquid crystal display

Abstract

The invention belongs to the technical field of liquid crystal materials, and relates to a low-viscosity, fast-response and low-power-consumption negative liquid crystal composition and a liquid crystal display. % is selected from the compound of formula (II) as the second component; 1-65% is selected from the compound of formula (III) as the third component; 0-30% is selected from the compound of formula (IV) as the fourth component; 0- 30% is selected from the compound of formula (V) as the fifth component; 0-20% is selected from the compound of formula (VI) as the sixth component; 0-20% by weight is selected from the compound of formula (VIIa), (VIIb) as the The seventh component; 0-10% is selected from the compounds of formula (VIIIa), (VIIIb) as the eighth component; 0-20% is selected from the compounds of formula (IXa), (IXb) as the ninth component; 0-30 % is selected from compounds of formulae (Xa), (Xb) and (Xc) as the tenth component. The liquid crystal composition of the invention has the characteristics of low viscosity, fast response, fast pouring and good stability.

Description

technical field [0001] The invention belongs to the technical field of liquid crystal materials, and in particular relates to a negative liquid crystal composition with low viscosity, rapid response and low power consumption, and a liquid crystal display. Background technique [0002] With the continuous development of liquid crystal display technology, liquid crystal display devices are widely used in military, communications, finance, education, scientific research and large and small area electronic equipment, such as vehicles, mobile phones and so on. With the VA type wide viewing angle technology becoming the development trend of LCD, VA-LCD is widely used in automobiles, mobile phones and computers, etc., and has become an indispensable daily necessities in people's lives. Therefore, VA-LCD has also become the object of research. The arrangement of liquid crystal molecules in the VA-LCD cell is vertically arranged, vertical array (VA for short). [0003] The current ...

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Problems solved by technology

[0003] The current liquid crystal composition has problems such as high viscosity, slow perfusion, slow response, and poor stability. How to reduce the viscosity of the composition under the premise of increasing the response speed has become an urgent problem to be solved. Response time and viscosity have a certain relationship: τ∝γd 2 ,, It can be seen that the best way to improve the response speed of the liquid crystal display device is to reduce the viscosity of the mixed liquid crystal material and reduce the cell thickness of the liquid crystal cell, so in the composition, adding components with low viscosity will reduce the viscosity of the liquid crystal and improve the response speed

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