Touch module, touch display screen, and electronic device

A touch module, comprising:

• a carrier layer, a first metal mesh layer, an insulating layer and a second metal mesh layer that are sequentially laminated;
• wherein
• the second metal mesh layer is provided with a first region and a second region, and the second metal mesh layer comprises a plurality of touch units disposed in the first region and a first electrode disposed in the second region, wherein the first electrode is directly coupled to a first touch unit of the plurality of touch units, and the first touch unit is adjacent to a first side of the second region;
• and
• the first metal mesh layer is provided with a third region, an orthographic projection of the third region on the carrier layer being overlapped with an orthographic projection of the second region on the carrier layer, and the first metal mesh layer comprises a second electrode disposed in the third region, wherein the second electrode is coupled to a second touch unit of the plurality of touch units, the second touch unit is adjacent to another side of the second region, and the first electrode and the second electrode are configured to form a target touch unit;
• and
• wherein the orthographic projection of the third region on the carrier layer and the orthographic projection of the second region on the carrier layer coincide with each other;
• and
• a hollowed-out portion facing a hole of the display screen is provided in the second region.