As for capacitive screen, it is a relatively sensitive device. The display screen will radiate interference to the capacitive screen when it works, so there may be jump points or influent lines. Air bonding and optical bonding are similar. There are differences in algorithm compensation between capacitive touch screen after optical bonding and air bonding, so there will be possibility that no problem in air bonding, but interference will occur after optical bonding.
Considering the above problems, we usually solve them from two aspects:
first, to choose a touch screen solution with very good anti-interference performance at the very beginning, such as Cypress solution, then the influence of this difference on it will be much smaller. Basically, only a slight adjustment of the configuration parameters will solve the problem quickly;
Second, If a consumer touch control solution is chosen at the beginning, the configuration parameters of the touch screen need to be adjusted according to the actual environment of motherboard when it is working, and some algorithm compensation is needed. Whether it can be solved ultimately or not depends on the application environment of the product itself and the interference source of the motherboard.
