It can easily be achieved by utilizing display modules that have a capacitive touch with Cover Lens Bezel (CLB) which can provide sufficient protection given that the perimeter is sealed.

For applications that use resistive or non-touch display module, the best practice is to add a thin transparent membrane that can be effectively fused to the enclosure and then place the display in front of it.

The membrane must be clear and flexible enough for use with the display. Likewise, just using sealants around the edges is not a good way as it can affect touch capability.