The product CS10600T101E/CS10600T101P uses 10-point capacitive touch or resistive touch, as Figure 6 shows.
Figure 6 Resistive Touch Connector
Capacitive touch is very sensitive to power noise. Ripple voltage/current from the power adapter will cause the LCD ripples, and will also cause the capacitive touch malfunction: If you use the APK Multi-Touch under Android to test, you can find the touch point float. There are several ways to solve this problem:
1) Use a high quality power adapter. Or use battery to provide the power like cell phone or tablet PC.
2) If user power adapter isn’t good enough, there’s another effective method to solve this problem: Make sure the power input connector Pin 3 really connect to user “Power System Ground”. This method can eliminate the problem totally. User can also use another method to test this problem: touch the GND of the product by one hand, the other hand operates on the capacitive touch screen. In this case, user’s body acts as the Power System Ground.