Organic light-emitting display panel and organic light-emitting display device having built-in touchscreen

An organic light-emitting display panel comprising:

• a plurality of subpixels disposed on a substrate and defined therein by a plurality of data lines and a plurality of gate lines, wherein each of the plurality of subpixels comprises:
• an organic light-emitting diode comprising a first electrode, an organic light-emitting layer, and a second electrode, wherein a load-free driving signal is applied to the second electrode,
• a driving transistor driving the organic light-emitting diode,
• a first transistor electrically connected between a first node of the driving transistor and a data line among the plurality of data lines corresponding thereto, and
• a storage capacitor electrically connected between the first node and a second node of the driving transistor;
• an encapsulation layer located on each of the second electrodes of the organic light-emitting diodes of the plurality of subpixels, and including at least one inorganic layer and at least one organic layer;
• an overcoat layer on the encapsulation layer;
• a plurality of mesh type touch electrodes and a plurality of touch lines electrically connected to the plurality of mesh type touch electrodes having open areas corresponding to positions of light-emitting areas of the plurality of the subpixels, the plurality of mesh type touch electrodes and the plurality of touch lines between the encapsulation layer and the overcoat layer;
• a plurality of data pads electrically connected to the plurality of data lines on the substrate;
• and
• a plurality of touch pads at ends of the plurality of touch lines and electrically connected to the plurality of touch lines on the substrate, the plurality of touch pads electrically connected to a touch sensing circuit;
• the overcoat layer covering the plurality of mesh type touch electrodes, and disposed to expose at least a part of at least one of the plurality of touch pads,
• wherein a part of the overcoat layer contacts an upper surface of the encapsulation layer, and a size of the overcoat layer is larger than a size of the second electrode,
• wherein the plurality of mesh type touch electrodes overlap at least one of the plurality of data lines and one of the plurality of gate lines in at least a part area, and
• wherein the encapsulation layer, the plurality of datapads, the plurality of subpixels, the organic light-emitting diode, the plurality of touch electrodes, the plurality of touch lines, the overcoat layer, and the plurality of touch pads are formed on a same substrate.