| 摘要 |
PROBLEM TO BE SOLVED: To minimize the influence of a display operation.SOLUTION: A scanning drive part is configured to drive a common drive electrode such that the waveform of a touch detection drive signal is transited in any timing other than a display period, and to, when the common drive electrode as the object of first scanning drive and the common drive electrode as the object of second scanning drive are overlapped, apply either a display drive signal or the touch detection drive signal to the overlapped common drive electrodes, and to, when the common drive electrode as the object of first scanning drive and the common drive signal as the object of second scanning drive are not overlapped, shift the phase of the display drive signal and the phase of the touch detection drive signal such that the waveform of the touch detection drive signal is transited in a timing in which the waveform of the display drive signal is not transited. A detection circuit is configured to sample touch detection signals in timings in which the display drive signal, a scanning signal and a pixel signal are not transited, and to calculate the difference. |
