Touch Display Panel and Method for Manufacturing the Same, Display Device

A method for manufacturing a touch display panel, comprising:

• forming a plurality of touch lines, an insulating layer and a plurality of first electrodes above a surface of a side of a substrate, the insulating layer covers the touch lines and is provided with at least one through-hole corresponding to each of the touch lines, each through-hole exposes a portion of the touch line corresponding thereto, the first electrodes arranged in rows and columns and spaced apart from each other are at a side of the insulating layer distal from the touch lines, and orthographic projections of the touch lines on the substrate do not overlap with orthographic projections of the first electrodes on the substrate;
• forming barrier walls in each through-hole, and at a predetermined position, at which no touch electrode is to be formed, in an interval between the first electrodes, each of the barrier walls has a thickness greater than a predefined threshold in a direction perpendicular to the surface of the substrate;
• forming a light emitting layer and a second electrode layer at the side of the substrate formed with the touch lines, the insulating layer, the first electrodes and the barrier walls, the second electrode layer is formed at a side of the light emitting layer distal from the substrate, portions of the light emitting layer formed above the barrier walls and portions of the second electrode layer formed above the barrier walls disconnect from remaining portions of the light emitting layer and remaining portions of the second electrode layer respectively;
• removing the barrier walls, the portions of the light emitting layer formed above the barrier walls and the portions of the second electrode layer formed above the barrier walls, the remaining portions of the second electrode layer form a plurality of touch electrodes arranged in rows and columns and spaced apart from each other, each of the first electrodes, the light emitting layer in contact with said each of the first electrodes and the touch electrode in contact with the light emitting layer form an organic light emitting diode;
• and
• forming an electrical conductive structure in each through-hole, each electrical conductive structure couples one touch line corresponding thereto to one touch electrode corresponding to said one touch line.