Demand in the PC Light Guide Film Market Continues to Be Unleashed, with Three Major Fields Becoming Core Growth Engines

As a core functional optical film, PC light guide film uses polycarbonate as its substrate and, through precision optical design, converts point light sources and linear light sources into uniform surface light sources. It offers advantages such as high light transmittance, low haze, strong temperature resistance, and a thin, lightweight and flexible form, making it widely used in consumer electronics, automotive electronics, commercial lighting, smart home and many other fields. It is a key supporting material for backlight modules, display panels and smart optical components. As downstream emerging fields iterate technologically and demand expands, market demand for PC light guide film continues to be released, highlighting the industry's growth potential.

From the perspective of market drivers, three major fields have become core growth engines. First, consumer electronics display technology is iterating and upgrading, with the rapid adoption of new technologies such as Mini/Micro LED, OLED and foldable screens placing higher demands on the optical performance and thinness of PC light guide film; portable terminals in particular, such as e-readers and computer backlit keyboards, are driving average annual growth in demand for ultra-thin precision cast light guide film. Second, the new energy vehicle industry is being adopted on a large scale, and smart cockpits are moving toward multi-screen, curved and high-end designs; components such as in-vehicle center console displays, instrument panels, ambient lighting and HUD head-up displays all require automotive-grade PC light guide film, and such products must meet stringent requirements including resistance to high and low temperatures from -40℃ to 120℃, vibration resistance and flame retardancy. Global new energy vehicle sales reached a new high in 2025, driving up PC light guide film usage per vehicle and making this an emerging incremental market. Third, smart home and IoT devices are growing explosively, and products such as smart panels, sensors and smart lighting are raising demand for light guide film for status indication and interactive functions, becoming a new driver of market growth.