Description: finger or pen to touch the screen, usually two mutually insulated conductive layer on location in touch with a contact, because either side conductive layer connected to the X-axis 5 V voltage field uniformity (a map), measuring the voltage level from zero to nonzero, the controller connected to the detection of this now, A/D conversion, and the voltage V compared with the five it can touch points for the X axis coordinates (close to the original point of getting access locations) : Xi'an Lx = Vi*/V (ie pressure principle) come empathy Y axis coordinates, This is all technical resistance Touchscreen common basic principles.
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