Concurrent Driving Method with Fast Scan Rate for Large Mutual Capacitance Touch Screens

Figure 10

Measurement results of a 23-inch touch screen panel with concurrent differential driving. (a) With differential sensing in case of no touch. (b) With differential sensing in case of touch applied. (c) With single-line sensing in case of no touch. (d) With single-line sensing in case of touch applied.

(a)

(b)

(c)

(d)