Touch substrate, method for manufacturing the same, and touch display device

A touch substrate having a touch area, wherein the touch substrate comprises:

• a base substrate having a first surface;
• a first over coat layer on the first surface;
• a first touch electrode directly on the first over coat layer;
• and
• a second over coat layer on the first touch electrode, wherein the first touch electrode is located between the first over coat layer and the second over coat layer,
• wherein the second over coat layer wraps an upper surface of the first touch electrode away from the first over coat layer and opposite side surfaces connected to the upper surface of the first touch electrode, and wraps an upper surface, other than a part of the upper surface occupied by the first touch electrode, of the first over coat layer away from the base substrate and opposite side surfaces connected to the upper surface of the first over coat layer,
• wherein an area of the first over coat layer and an area of the second over coat layer are less than an area of the first surface in the touch area,
• wherein cross-sections of the first over coat layer, the first touch electrode and the second over coat layer in a direction perpendicular to the base substrate have a common axis of symmetry, and
• wherein the base substrate includes areas not covered by the second over coat layer between adjacent sections of the second over coat layer.