Display panel and display device

A display device, comprising:

• a display panel, wherein the display panel comprises:
• a substrate;
• a display element, a touch electrode layer and a plurality of touch signal lines disposed on the substrate, wherein the touch electrode layer further includes a plurality of individually configured touch electrodes detecting a touch based on self-capacitance or mutual-capacitance, the touch electrode layer has a single-layer touch structure in which all the touch electrodes in the display panel used for detecting the touch on the display panel and the plurality of touch signal lines are disposed in a same single layer;
• and
• a first barrier layer disposed between the display element and the touch electrode layer and including at least one organic film and at least one inorganic film alternately arranged, and the touch electrode layer is disposed over, and in contact with, the at least one organic film;
• a second barrier layer, wherein the touch electrode layer has a first surface facing the display element and an opposite surface, and the second barrier layer is disposed on the opposite surface of the touch electrode layer;
• and
• a polarizer disposed over the second barrier layer, wherein:
• the second barrier layer includes at least another organic film and at least two another inorganic films, the at least another organic film being sandwiched between the at least two another inorganic films,
• the polarizer is disposed over, and in contact with, one of the at least two another inorganic films,
• the display element comprises a plurality of display electrodes for displaying images, and all the display electrodes in the display panel used for displaying the images are not multiplexed as the plurality of touch electrodes in the touch electrode layer, and
• the plurality of touch electrodes are one-to-one corresponding to the plurality of touch signal lines.