DISPLAY PANEL, DISPLAY DEVICE, AND METHOD FOR MANUFACTURING DISPLAY DEVICE

Discussed are a display panel, a display device, and a method for manufacturing the display device, capable of preventing damage to an active layer and deterioration of an element. The display device can include an active layer having a channel area disposed between a first area and a second area, a first barrier layer disposed on a portion of an upper surface of the active layer, a first auxiliary electrode disposed on the first area on the first barrier, a second auxiliary electrode disposed on the second area on the first barrier layer, a first diffusion control layer disposed on the first and second auxiliary electrodes, an insulation layer disposed on the first diffusion control layer, and a first electrode electrically connected to the first auxiliary electrode and a second electrode electrically connected to the second auxiliary electrode, disposed on the insulation layer.