Latest progress in the liquid crystal (LC) field related to azo molecules incorporated into natural product- based moieties for the improvement of LC texture and mesomeric phases has received great interest among researchers. A LC containing natural product-based moieties i.e. menthol, kojic acid, cholesterol and chalcone with stable azo and azobenzene scaffolds with specific optical tunability, has been widely used in photo-active materials such as Liquid Crystal Display (LCD), LC films, smart windows and other devices. This review discusses the influence of azobenzene, a renowned photo-responsive and stable LC scaffold, in mesogenic phases due to photo-isomerization and optical switching. The incorporation of mesomeric phases of natural product moieties to azo molecules has improved the properties of LC, i.e, from the nematic phase to the smectic phase with proper magnetic field alignment. Natural product-based LC can be useful in numerous applications, especially practical electronic or optic devices such as optical image storage, display devices, solar cells, optical switching.

液晶 (LC) 领域的最新进展与将偶氮分子结合到基于天然产物的部分中以改善 LC 结构和介孔相相关，引起了研究人员的极大兴趣。一种含有天然产物基部分的 LC，即薄荷醇、曲酸、胆固醇和查耳酮，具有稳定的偶氮和偶氮苯支架，具有特定的光学可调性，已广泛应用于光敏材料，如液晶显示器 (LCD)、液晶薄膜、智能窗户和其他设备。本综述讨论了偶氮苯（一种著名的光响应性和稳定的 LC 支架）在介晶相中由于光异构化和光开关而产生的影响。将天然产物部分的介孔相结合到偶氮分子中改善了 LC 的性质，即，从向列相到近晶相，并具有适当的磁场排列。基于天然产物的 LC 可用于许多应用，特别是实用的电子或光学设备，如光学图像存储、显示设备、太阳能电池、光开关。