Touch display device having insulating layer with different thickness

A touch display device, comprising:

• a substrate;
• a display layer disposed on the substrate, wherein the display layer comprises a barrier portion and a plurality of display units, and the barrier portion is disposed between adjacent ones of the plurality of display units;
• an insulating layer disposed on the display layer;
• and
• a touch electrode layer directly contacting the insulating layer and comprising a mesh structure, wherein the insulating layer is disposed between the display layer and the mesh structure,
• wherein a portion of the mesh structure is overlapped with the barrier portion,
• wherein the insulating layer comprises a first layer, a second layer, and a third layer, the second layer is disposed between the first layer and the third layer, the first layer and the third layer are formed of inorganic insulating materials, and the second layer is formed of organic insulating material, and
• wherein the second layer has a first thickness corresponding to the plurality of display units and has a second thickness corresponding to the barrier portion, and the first thickness is greater than the second thickness.