Outdoor displays age quickly because they lack a UV cutoff layer.

What are touchscreens most vulnerable to when used outdoors? Besides heat, dust, and rain, there's actually another "invisible killer": ultraviolet (UV) rays.

Two touchscreens of identical thickness, one with UV blocking treatment and the other without, were tested.

UV testing equipment revealed the following:
The touchscreen without UV blocking only blocked approximately 20% of UV rays, blocked approximately 24% of infrared rays, and had a visible light transmittance of approximately 85%.

The touchscreen with UV blocking had a UV blocking rate of up to 99.9% and blocked approximately 86.8% of infrared rays.
And its transmittance was even higher, reaching 87.1%.

In other words, UV blocking technology not only effectively protects against UV rays, but also does not affect screen brightness or display quality.

Why is UV protection necessary? Core components of touchscreens—such as polarizers and filters—are extremely sensitive to UV rays. Prolonged exposure to sunlight can cause them to age and discolor, resulting in yellowing, whitish tints, and color casts, directly impacting display quality and lifespan. UV protection is particularly important for displays used in outdoor devices (such as self-service terminals, charging stations, industrial control systems, and in-vehicle equipment).

The significance of UV blocking: UV blocking technology is like putting an invisible sunscreen on the display. It effectively blocks UV damage while maintaining high light transmittance and color fidelity, ensuring the screen remains clear, stable, and durable in outdoor environments.

In outdoor environments with strong sunlight and high-intensity UV radiation, UV blocking is a key process for maintaining touchscreen reliability and display quality.