Touch structure and manufacturing method thereof, display panel, and display device

A touch structure, having a touch region, the touch structure comprising:

• at least one touch functional layer group, each touch functional layer group including an organic layer and a conductive layer that are sequentially stacked, wherein the at least one touch functional layer group includes:
• a first touch functional layer group including a first organic layer and a first conductive layer that are sequentially stacked;
• and
• a second touch functional layer group disposed on a side of the first conductive layer away from the first organic layer, the second touch functional layer group including a second organic layer and a second conductive layer that are sequentially stacked;
• at least one protective pad layer wherein each protective pad layer is arranged corresponding to a touch functional layer group;
• a protective pad layer of the at least one protective pad layer is located between a conductive layer and an organic layer of a corresponding touch functional layer group;
• and an orthographic projection of the protective pad layer on the organic layer of the corresponding touch functional layer group at least partially overlaps with an orthographic projection of the conductive layer of the corresponding touch functional layer group on the organic layer of the corresponding touch functional layer group;
• a plurality of touch units disposed in the touch region and including a plurality of first touch units and a plurality of second touch units, wherein each first touch unit extends along a first direction, and the plurality of first touch units are arranged side by side along a second direction, the second direction and the first direction intersecting;
• each second touch unit extends along the second direction, and the plurality of second touch units are arranged side by side along the first direction;
• the first touch unit includes a plurality of first touch electrodes and a plurality of first connection portions, and two adjacent first touch electrodes are electrically connected to each other through a first connection portion;
• the second touch unit includes a plurality of second touch electrodes and a plurality of second connection portions, and two adjacent second touch electrodes are electrically connected to each other through a second connection portion;
• and
• a plurality of auxiliary electrodes;
• wherein the plurality of first touch electrodes, the plurality of second touch electrodes and the plurality of first connection portions are arranged in one of the first conductive layer and the second conductive layer, and the plurality of auxiliary electrodes and the plurality of second connection portions are arranged in another of the first conductive layer and the second conductive layer;
• or the plurality of first touch electrodes, the plurality of second touch electrodes and the plurality of second connection portions are arranged in the one of the first conductive layer and the second conductive layer, and the plurality of auxiliary electrodes and the plurality of first connection portions are arranged in the another of the first conductive layer and the second conductive layer;
• wherein an orthographic projection of each auxiliary electrode on the first organic layer at least partially overlaps an orthographic projection of a first touch electrode of the plurality of first touch electrodes or a second touch electrode of the plurality of second touch electrodes on the first organic layer;
• and the auxiliary electrode is electrically connected to the first touch electrode or the second touch electrode through via holes in the second organic layer.