Liquid crystal composition and application thereof

Abstract

The invention provides a liquid crystal composition and application thereof. The liquid crystal composition comprises at least one compound as shown in a formula I, at least one compound as shown in aformula II and a compound as shown in a formula III. According to the liquid crystal composition provided by the invention, the three compounds are synergistically compounded according to specific content, so that the clearing point, low-temperature intersolubility, elastic constant and response speed of the liquid crystal composition are remarkably improved, the transmittance is higher, the liquid crystal gradient is smaller, the influence of temperature change on driving voltage and saturation voltage is smaller, and the liquid crystal composition is good in reliability and higher in stability. Therefore, the liquid crystal composition provided by the invention is an ideal liquid crystal material with good comprehensive performance, is suitable for liquid crystal display devices with high display performance, and has a wide application prospect.

Description

technical field [0001] The invention belongs to the technical field of liquid crystal materials, and in particular relates to a liquid crystal composition and its application. Background technique [0002] Liquid crystal displays (liquid crystal displays, LCDs) have achieved rapid development due to their small size, light weight, low power consumption and excellent display quality, and are especially widely used in portable electronic information products. With the increase in the size of LCD screens used in portable computers, office applications, and video applications, in order to enable liquid crystal displays to be used for large-screen display and eventually replace cathode ray tubes (Cathode Ray Tube, CRT), current liquid crystals for LCDs are moving toward faster response speeds. Faster, more reliable direction of development. [0003] As the most commonly used dielectric in display devices, liquid crystal materials can change the optical properties of such substan...

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Problems solved by technology

[0007] In addition, liquid crystal displays also have the problem that the display effect will deteriorate in high temperature environments. This is because the driving voltage and saturation voltage of liquid crystal materials will change with changes in temperature, which will lead to poor display quality and reduced contrast. Seriously affect the display effect

Although the existing technology improves the display effect by adjusting the driving conditions of the panel at different temperatures, the driving voltage and saturation voltage of ordinary liquid crystal materials vary too much with temperature, and the known improvement effect is limited

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