Touch point detecting circuit, inductive touch screen and touch display device

An inductive touch screen, comprising a touch point detecting circuit, wherein the touch point detecting circuit comprises:

• a plurality of mutually inductive units arranged in an array, wherein each mutually inductive unit comprises a first coil and a second coil which are mutually coupled inductors,
• wherein the first coil of each mutually inductive unit in a same row is electrically connected to an identical first signal line, and the second coil of each mutually inductive unit in a same column is electrically connected to an identical second signal line,
• wherein each first signal line is electrically connected to an input terminal of a touch scanning signal, and different first signal lines are electrically connected to different input terminals respectively;
• each second signal line is electrically connected to an output terminal of the touch scanning signal, and different second signal lines are electrically connected to different output terminals respectively;
• or
• each first signal line is electrically connected to an output terminal of a touch scanning signal, and different first signal lines are electrically connected to different output terminals respectively;
• each second signal line is electrically connected to an input terminal of the touch scanning signal, and different second signal lines are electrically connected to different input terminals respectively.

A touch display device, comprising an inductive touch screen, the inductive touch screen comprising a touch point detecting circuit, wherein the touch point detecting circuit comprises:

• a plurality of mutually inductive units arranged in an array, wherein each mutually inductive unit comprises a first coil and a second coil which are mutually coupled inductors,
• wherein the first coil of each mutually inductive unit in a same row is electrically connected to an identical first signal line, and the second coil of each mutually inductive unit in a same column is electrically connected to an identical second signal line,
• wherein each first signal line is electrically connected to an input terminal of a touch scanning signal, and different first signal lines are electrically connected to different input terminals respectively;
• each second signal line is electrically connected to an output terminal of the touch scanning signal, and different second signal lines are electrically connected to different output terminals respectively;
• or
• each first signal line is electrically connected to an output terminal of a touch scanning signal, and different first signal lines are electrically connected to different output terminals respectively;
• each second signal line is electrically connected to an input terminal of the touch scanning signal, and different second signal lines are electrically connected to different input terminals respectively.