As mentioned by both members before me, it's a known problem with non-OEM chargers, but although it is rare and very mild, there are some instances where the same effect can be demonstrated with an OEM charger as well. You are best to stay away from chargers made to be "compatible" or "universal" and even to using the charger from one phone manufacturer for another phone. Slight differences in the design and tolerances of one or another phone dictate comparable differences in the chargers, making them just different enough to cause interference and operational issues, specifically with the touch screen.
Quality of the charger should be guaranteed the right charging skills is also essential, because of the poor quality of the charger or charging the wrong methods will affect the use of time and cycle life of the battery