Comparison of Optical bonding and air bonding.

Reduce reflections and increase viewability (outdoor has largest advantage)

The main advantage of optical bonding is the improved readability and contrast of the display, even under intense lighting conditions and wide viewing angles. In air bonding, light from an external source passes through the panel and air gap (between the display and the glass), causing its refraction. This phenomenon means that some of the light is reflected back, creating reflections on the screen. When the backlight of LCD passes the air gap and touch, the same thing happens.