Display device having auxiliary wiring line electrically connected to metal nanowire

A display device comprising:

• a display region including, on a substrate, a thin film transistor (TFT) layer, a light-emitting element layer including a plurality of light-emitting elements, and a sealing layer in this order;
• and
• a frame region around the display region,
• wherein the light-emitting element layer further includes:
• for each of the plurality of light-emitting elements, a first electrode and a plurality of openings exposing the first electrode,
• an edge cover covering an end portion of the first electrode,
• a plurality of light-emitting layers covering each of the plurality of openings, and
• a second electrode that is common to the plurality of light-emitting elements and covers the plurality of light-emitting layers,
• the second electrode includes a metal nanowire,
• the light-emitting element layer further includes an auxiliary wiring line in a lattice pattern in a position overlapping the edge cover,
• the auxiliary wiring line and the metal nanowire are electrically connected to each other,
• the light-emitting element layer further includes an inorganic hole transport layer between the first electrode and each of the plurality of light-emitting layers,
• the inorganic hole transport layer that is common to the plurality of light-emitting layers, and
• the inorganic hole transport layer is provided on a sealing layer side of the edge cover, and is in contact with the auxiliary wiring line.

A display device comprising:

• a display region including, on a substrate, a thin film transistor (TFT) layer, a light-emitting element layer including a plurality of light-emitting elements, and a sealing layer in this order;
• and
• a frame region around the display region,
• wherein the light-emitting element layer further includes:
• for each of the plurality of light-emitting elements, a first electrode and a plurality of openings exposing the first electrode,
• an edge cover covering an end portion of the first electrode,
• a plurality of light-emitting layers covering each of the plurality of openings, and
• a second electrode that is common to the plurality of light-emitting elements and covers the plurality of light-emitting layers,
• the second electrode includes a metal nanowire,
• the light-emitting element layer further includes an auxiliary wiring line in a lattice pattern in a position overlapping the edge cover,
• the auxiliary wiring line and the metal nanowire are electrically connected to each other, and
• each of the plurality of light-emitting layers includes a quantum dot and a photosensitive resin.