Touchscreen Driver
Oclean’S Electric Toothbrushes Have Lcd Color Touchscreens
These fluctuations end in lots of background noise, so a strong finger sign is required for correct detection. This limits functions to these where the finger instantly touches the sensing component or is sensed via a relatively thin non-conductive surface. In this basic technology, just one side of the insulator is coated with a conductive layer.
Bringing a finger or conductive stylus near the surface of the sensor modifications the local electrostatic area, which in turn reduces the mutual capacitance. The capacitance change at each individual point on the grid could be measured to precisely decide the touch location by measuring the voltage in the different axis...
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