Optical Bonding primarily serves to avoid the air gap between face-plate and TFT or LCD display. Thus the optical display of the screen contents gains in sharpness and depth. In many areas of the industry touch displays as HMI (human – machine – interface) are used more and more often. Often these HMIs are carried out as a glass/glass solution, with the disadvantage that glass is heavy and breaks very easily. Moreover, there are restrictions for the use of glass solutions in some applications (food industry).
So far it was virtually not possible to implement the properties low weight, impact resistance and high-quality optics on HMIs.
Therefore Cellwar searched for a solution, how touch sensors (PCAPs) can be connected with plastic fronts.
The advantages are obvious: