Scanning circuit for touch screen, touch screen and touch control method

A scanning circuit for a touch screen, comprising:

• a multiplexing circuit and a touch driving circuit coupled to the multiplexing circuit,
• wherein the touch driving circuit comprises m signal input terminals, and each of the m signal input terminals is coupled to n receiving-electrode channels in a touch panel of the touch screen, where both m and n are integers greater than or equal to 2, and
• the multiplexing circuit is configured to, in an ith time slot of a current scanning period of the touch panel, control the touch driving circuit to receive, through the m signal input terminals, to output signals from m receiving-electrode channels, and to determine a touch position according to an emitting-electrode channel corresponding to the current scanning period and the output signals of the m receiving-electrode channels,
• wherein the current scanning period comprises n time slots, where i=1, 2, . . . n, and the output signals of the m receiving-electrode channels received by the touch driving circuit in each of the time slots are different.