Abstract

Optoelectronic technology is one of the most important scientific and technological pillars in the development of modern society. Thus, it is crucial to devote efforts to revolutionizing related technologies and developing high-performance optoelectronic elements, especially on-chip functional devices. In today’s double-carbon strategy, we should take the chance to chart the course from the source, i.e., to develop green, intelligent, and high-efficiency optoelectronic materials that lie in the heart of optoelectronics. Liquid Crystals (LCs) [1], as a kind of magic optoelectronic material, have remained an unfailing paradigm for display industries, with the annual value of production reaching hundreds of billions of dollars. Whether LCs can provide unique opportunities for high-performance on-chip devices is a question but seems to have had an answer. It is also significantly important for the further development of LCs beyond displays. LC is a kind of mysterious “fourth state” of matter following solid, liquid, and gas. It exhibits abundant interesting phases and widely exists in living organisms and synthetic composites.