What are the advantages for optical boning? 

1/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. 

2/Protection of dust and condensation There is no gap between the LCD and the touch, so there is no space for dust particles and condensation. This will greatly help readability and image quality for the optical bonding product, which will be very helpful for outdoor utilization. 

3/Increased physical endurance Replacing the gap with OCA/SCA increases its physical strength. At the same time, it will also Improve heat resistance. Increased physical endurance allows an optical bonding module using in public places, factories and military applications.