Display device

A display device comprising:

• a substrate;
• a stack of a flattening film, a first electrode, an edge cover, and a second electrode, the stack being disposed on the substrate;
• a sealing layer disposed on the second electrode, the sealing layer including a first insulating sealing film, an organic film, and a second insulating sealing film;
• a display region;
• and
• a frame region surrounding the display region,
• wherein the display region includes a pixel circuit including a plurality of transistors,
• the frame region includes
• a trench disposed in the flattening film so as to surround the display region,
• a first conductive film electrically connected to the second electrode in the trench, the first conductive film being made of a material identical to a material of the first electrode, the first conductive film being disposed in a layer identical to a layer where the first electrode is disposed,
• a barrier wall defining an end of the organic film so as to surround an outside of the trench,
• a TEG pattern disposed between the display region and the trench, and
• a dummy pixel circuit disposed between the display region and the barrier wall, the dummy pixel circuit having a configuration identical to a configuration of the pixel circuit, the dummy pixel circuit including a transistor, and
• the TEG pattern is adjacent to at least the dummy pixel circuit.