Touch module comprising touch units, manufacturing method thereof and touch display device having the touch module

A touch module, comprising:

• a base substrate;
• and
• an array of touch units arranged on the base substrate, each touch unit comprising a first touch electrode extending along a first direction and two second touch electrodes arranged on two sides of the first touch electrode along a second direction, the first direction and the second direction intersecting each other,
• wherein the touch unit further comprises:
• a bridging region between the two second touch electrodes, a boundary region between the first touch electrode and each of the second touch electrodes, and a main body region located inside at least one of the first touch electrode and the second touch electrodes,
• wherein the bridging region, the boundary region and the main body region respectively comprise cutting openings, and
• wherein a ratio of a number of sub-pixels covered by the bridging region to a number of sub-pixels covered by the touch unit in a range of approximately 3×10−4˜4×10−3.

A manufacturing method of a touch module, comprising:

• providing a base substrate;
• arranging an array of touch units on the base substrate, each touch unit comprising a first touch electrode extending along a first direction and two second touch electrodes arranged on two sides of the first touch electrode along a second direction, the first direction and the second direction intersecting each other;
• the touch unit further comprising:
• a bridging region between the two second touch electrodes and comprising a connection portion of the two second touch electrodes, a boundary region between the first touch electrode and each of the second touch electrodes, and a main body region located inside at least one of the first touch electrode and the second touch electrodes;
• and
• forming cutting openings in the bridging region, the boundary region and the main body region,
• wherein the first touch electrode and the second touch electrodes each comprises a metal mesh, and forming the cutting openings comprises forming fractures of metal wires of the metal mesh, the cutting openings being slits.