Patent ID: 9733755
Date: 2017-08-15
CPC Classifications: G06F,G09G

Claim:
1. A drive circuit of a touch panel, comprising a signal selection circuit and a de-multiplexing circuit, wherein a first input terminal of the signal selection circuit is connected with a touch driving signal input line for transmission of a touch driving signal, a second input terminal of the signal selection circuit is connected with a display signal input line for transmission of a display signal, and an output terminal of the signal selection circuit is connected with an input terminal of the de-multiplexing circuit; an output terminal of the de-multiplexing circuit is connected with a plurality of pixel electrodes through respective data lines: in a display phase, the signal selection circuit is configured to forward the display signal received from the display signal input line to the de-multiplexing circuit, which is configured to de-multiplex the display signal from the signal selection circuit and transmit signals resulting from the de-multiplexing of the display signal to the data lines; and in a touch phase, the signal selection circuit is configured to forward the touch driving signal received from the touch driving signal input line to the de-multiplexing circuit, which is configured to de-multiplex the touch driving signal from the signal selection circuit and transmit signals resulting from the de-multiplexing of the touch driving signal to the data lines wherein the signal selection circuit comprises a first switch and a second switch, wherein the first switch is configured to connect a first input terminal of the signal selection circuit to an output terminal of the signal selection circuit, and the second switch is configured to connect a second input terminal of the signal selection circuit to the output terminal of the signal selection circuit.