Touch substrate, touch display panel and touch display apparatus

A touch display panel, comprising a touch display region and a peripheral region surrounding the touch display region, wherein the peripheral region comprises:

• a second binding region on a side of the touch display region, and a second bending region between the second binding region and the touch display region;
• the touch display panel further comprises:
• a base substrate;
• a touch electrode layer on the base substrate and in the touch display region, wherein the touch electrode layer comprises a plurality of touch electrodes in a same layer and insulated from each other;
• and
• a plurality of touch leads on the base substrate, wherein each touch lead is electrically connected to a corresponding one of the plurality of touch electrodes, some touch leads extend from the touch display region through the second bending region to the second binding region, and are bent to the back of the touch display panel in the second bending region, wherein the plurality of touch electrodes comprise a plurality of first touch electrodes and a plurality of second touch electrodes crossing each other in a horizontal direction and a vertical direction, the plurality of touch leads comprise first leads, and the second binding region is located at an end of the plurality of second touch electrodes in an extending direction of the plurality of second touch electrodes;
• each of the first leads is electrically connected to a first end of a corresponding one of the plurality of first touch electrodes, some first leads extend from the touch display region through the second bending region to the second binding region;
• wherein the plurality of touch leads further comprises third leads and fourth leads, each of the third leads is electrically connected to a second end of a corresponding one of the plurality of first touch electrodes, some third leads extend from the touch display region through the second bending region to the second binding region;
• and
• each of the fourth leads is electrically connected to a second end of a corresponding one of the plurality of second touch electrodes, and the fourth leads extend from the touch display region through the second bending region adjacent to the fourth leads to the second binding region, and
• wherein a gap between the first lead electrically connected to the first touch electrode closest to the second end of the second touch electrode and the fourth lead electrically connected to the second touch electrode closest to the first end of the first touch electrode is a third gap, and a width of the third gap is greater than or equal to 70 μm;
• and
• a gap between the third lead electrically connected to the first touch electrode closest to the second end of the second touch electrode and the fourth lead electrically connected to the second touch electrode closest to the second end of the first touch electrode is a fourth gap, and a width of the fourth gap is greater than or equal to 70 μm.