92‐2: Application of Large Active‐Matrix Reflective Cholesteric Liquid‐Crystal Technology in Outdoor Public Information Displays

The utilization of large‐sized active matrix reflective cholesteric liquid crystal (ChLC) technology in outdoor public information displays (PID) has gained significant attention. This technology leverages the unique optical properties of ChLC to enhance visibility and reduce power consumption. ChLC technology operates without the necessity of backlight, relying instead on ambient light for image presentation. Its bistable characteristics ensure that energy is only consumed during image updates, thus providing significant energy efficiency. In applications for outdoor PID, the incorporation of wide‐temperature materials, combined with active matrix, has successfully led to the development of the world's largest 32‐inch full‐color ChLC reflective display. Active matrix ChLC displays can achieve large sizes, rapid page transitions, ultra‐low power consumption, and high picture quality, making them one of the most promising technologies currently available.