Aplex Technology APC-3918P - Manual (Page 83)

APC-3918P User Manual 83
Tools
Click OK to continue the settings.
4 Points Calibration
Do 4 points alignment to match display.
Clear and Calibrate
Clear linearization parameter and do 4 points alignment.
Linearization
Do 9 points linearization for better touchscreen linearity.
Draw Test
Do draw test to verify the touch accuracy.