Liquid crystal composition with high UV (ultraviolet) stability

Abstract

The invention discloses a liquid crystal composition with high UV (ultraviolet) stability, comprising one or more additive components composed of compounds shown in a general formula S-1 and/or general formula S-2 as follows. The liquid crystal composition has high UV stability, VHR (voltage holding ratio) of liquid crystal remains same even after being irradiated under 10000MJ UV energy, and the liquid crystal composition has high response speed.

Description

technical field [0001] The invention relates to the field of liquid crystal materials, in particular to a liquid crystal composition with high UV stability. Background technique [0002] In recent decades, with the rapid development of information technology and people's continuous pursuit of information display methods, liquid crystal display (LCD), as an important application of liquid crystal, has achieved the most rapid development. The optical anisotropy and dielectric anisotropy of the material itself are used to work, and it has been widely used at present. Liquid crystal devices can be designed into different working modes according to different liquid crystal materials and working methods. [0003] In 1968, R.Williams of RCA Company in the United States discovered that the nematic liquid crystal forms stripe domains under the action of an electric field, and has light scattering phenomenon. G.H.Heilmeir then developed it into a dynamic scattering display mode and ...

AI Technical Summary

Problems solved by technology

[0006] In the display manufacturing process, the liquid crystal will be subjected to harsh conditions such as ultraviolet radiation and high temperature, which will have a certain damage to the liquid crystal, and free radicals will be generated in the liquid crystal to trigger a free radical chain reaction, resulting in deterioration of the quality of the liquid crystal and making the display process Display defects such as afterimages occur, so it is necessary to develop a high-quality liquid crystal that does not deteriorate under high-energy ultraviolet irradiation, thereby reducing display defects

Images