The Polymer Dispersed Liquid Crystal (PDLC) Smart Glass segmentation by application delineates five principal domains that collectively shape market volume. Architectural installations—encompassing commercial façades, office partitions, and residential glazing—represent the largest share, driven by energy‑efficiency mandates and privacy requirements, accounting for roughly 45 % of total demand. In the automotive sector, PDLC is integrated into sunroofs, side windows, and rear‑view mirrors to modulate glare and improve cabin comfort, contributing an estimated 20 % of market revenue. Consumer electronics applications, such as smart displays, privacy screens for laptops and tablets, and wearable interfaces, generate about 15 % of sales, reflecting rapid adoption in portable devices. The defense and aerospace niche employs PDLC for cockpit shading, secure observation ports, and adaptive camouflage, adding a 10 % slice to the overall market. Finally, medical and healthcare uses—including privacy windows in hospitals, adjustable lighting in surgical suites, and patient‑room glass—account for the remaining 10 %, underscoring the technology’s role in controlled environments.