Touch display panel and manufacturing method thereof

A manufacturing method of a touch display panel, comprising:

• a step S10, providing a display panel to be manufactured with a plurality of touch electrodes, the display panel comprising a touch region and a non-touch region around the touch region, wherein a binding region is defined in the non-touch region;
• a step S20, manufacturing a first metal layer on the display panel, forming a plurality of conductive bridges distributed in an array manner in the touch region and a plurality of first leads arranged on two sides of the touch region after a patterning process, wherein one end of each of the first leads extends to the binding region;
• a step S30, manufacturing an insulation layer, forming a plurality of first contact holes and a plurality of second contact holes both in the insulation layer after another patterning process, wherein the first contact holes correspond to two ends of each of the conductive bridges, and the second contact holes correspond to the other end of each of the first leads;
• a S40 step, manufacturing a second metal layer, forming the touch electrodes in the touch region and a plurality of second leads on two sides of the touch region after another patterning process, wherein the touch electrodes are defined into a plurality of first electrode chains and a plurality of second electrode chains, the first electrode chains and the second electrode chains are independent from each other and intersected, one end of all of the second leads is connected to one of a part of the second electrode chain, and the other end of all of the second leads extends to the binding region;
• and
• wherein the touch electrodes belonging to the first electrode chains are connected via the conductive bridges through the first contact holes, rest of the second electrode chains are connected to the first leads through the second contact holes, and the first leads and the second leads are mutually overlapped or misplaced.

A touch display panel, comprising:

• a display panel comprising a touch region and a non-touch region around the touch region, wherein a binding region is defined in the non-touch region;
• a first metal layer, an insulation layer, and a second metal layer sequentially stacked on the display panel;
• one of the first metal layer and the second metal layer forming a plurality of conductive bridges and a plurality of first leads after a patterning process, wherein the conductive bridges correspond to the touch region and distributed in an array manner, the first leads are arranged on two sides of the touch region, and one end of each of the first leads extends to the binding region;
• the other one of the first metal layer and the second metal layer forming a plurality of touch electrodes and a plurality of second leads after another patterning process, wherein the touch electrodes correspond to the touch region, the second leads are arranged at the two sides of the touch region, and one end of each of the second leads extends to the binding region;
• the insulation layer provided with a plurality of first contact holes corresponding to two ends of each of the conductive bridges and a plurality of second contact holes corresponding to the other end of each of the first leads;
• wherein the touch electrodes are defined into a plurality of first electrode chains and a plurality of second electrode chains, the first electrode chains and the second electrode chains are independent from each other, the touch electrodes belonging to the first electrode chains are connected via the conductive bridges through the first contact holes, a part of the second electrode chains are connected to the first leads through the second contact holes, and rest of the second electrode chains are connected to the other end of each of the second leads;
• and
• wherein the first leads and the second leads are mutually overlapped or misplaced, and are electrically insulated.