Liquid crystal composition and application thereof

Abstract

The invention belongs to the field of liquid crystal display materials, and particularly relates to a liquid crystal composition and application thereof. The liquid crystal composition contains one ormore compounds represented by a general formula I, the compounds represented by the general formula I can be used as a novel light stabilizer and have excellent thermal stability, chemical stability,optical stability and mechanical properties, and the general formula I is shown in the specification. The compound represented by the general formula I has good rotary viscosity and liquid crystal intersolubility and excellent low-temperature working effect, so that the composition has a relatively high specific resistance value, a relatively low threshold voltage and a high response speed, and particularly has good stability and relatively low RDC for heat and UV exposure; after the compounds represented by the general formulas II-VII are further added, the components have a synergistic effect, so that the UV resistance and low RDC of the mixed liquid crystal are effectively improved on the premise of ensuring high dielectric constant and low driving voltage, and the mixed liquid crystalhas a wide application prospect.

Description

technical field [0001] The invention belongs to the field of liquid crystal display materials, and in particular relates to a liquid crystal composition and its application. Background technique [0002] Currently, liquid crystals are widely used in the field of information display. In recent years, the application fields of liquid crystal compounds have been significantly expanded to various display devices, electro-optic devices, electronic components, sensors, etc. For this reason, many different structures have been proposed, especially in the field of nematic liquid crystals, and nematic liquid crystal compounds have been most widely used in flat panel displays so far. [0003] Liquid crystal display has experienced a long development path with the discovery of liquid crystal. In 1888, the Austrian botanist Friedrich Reinitzer discovered the first liquid crystal material, cholesterol benzoate (cholesteryl benzoate). In 1917, Manguin invented the rubbing orientation m...

AI Technical Summary

Problems solved by technology

Liquid crystal media in the prior art have high RDC and often lead to undesired afterimages in the display. In addition, liquid crystals are not stable enough to heat and UV exposure, which can also cause afterimages on the panel

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