An air gap is commonly located between a filter or a touchscreen and the display behind. This causes the image to lose its brilliance and distracting reflections to develop. The bonding fills this air gap using a high-quality, transparent adhesive, eliminating it completely. The light refraction caused by the gap can be reduced significantly.
The liquid adhesive also prevents moisture from gathering in between the display and touchscreen and prevents possible condensation. Screen clouding after longer operating times is therefore no longer an issue.
Optical bonding offers another advantage in conjuction with capacitive touchscreens. Through the filled air gap with the adhesive, the sensitivity of the capacitive input can be better adjusted. The mixture of water and air that otherwise accumulates in the gap prevents optimal settings.