INTERACTION METHOD FOR EXTERNAL OBJECT AND TOUCH DISPLAY DEVICE, TOUCH PROCESSOR, TOUCH DISPLAY DEVICE, AND TOUCH SYSTEM

An interaction method for an external object and a touch display device, comprising: an image refresh cycle (Tf) of the touch display device comprises a plurality of display driving time periods (D) and a plurality of non-display driving time periods (T1, ..., T13), the display driving time periods (D) and the non-display driving time periods (T1, ..., T13) alternating with each other, the plurality of non-display driving time periods (T1, ..., T13) comprising a plurality of first touch time periods and a plurality of second touch time periods, and each first touch time period or each second touch time period being respectively a non-display driving time period (T1, ..., T13), wherein the image refresh cycle (Tf) comprises at least two second touch time periods which are located between two adjacent first touch time periods; and the external object comprises an active object (20) or a passive object, and the touch display device receives a communication signal from the active object (20), senses, by means of