Light-emitting element and light-emitting element manufacturing method
View Patent ↗A light-emitting element includes: a first electrode; a light-emitting functional layer that is provided on the first electrode, and includes a conductive layer as an uppermost layer thereof; a second electrode that is provided on the conductive layer, and has an undesired opening that corresponds to a region of the conductive layer; and a first passivation layer that is provided on the second electrode except on a periphery of the opening. The region of the conductive layer is oxidized. The light-emitting functional layer includes an organic light-emitting layer, and the conductive layer is provided above the organic light-emitting layer.
1. A light-emitting element comprising:
a first electrode;
a light-emitting functional layer that is provided on the first electrode, and includes a conductive layer as an uppermost layer thereof, the conductive layer including a conductive material;
a second electrode that is provided on the conductive layer, and has an opening that corresponds to a region of the conductive layer; and
a first passivation layer that is provided on the second electrode except on a periphery of the opening, wherein
a foreign substance is attached to the region of the conductive layer in the opening of the second electrode, and
a portion of the conductive layer to which the foreign substance is attached includes oxide of the conductive material.
2. The light-emitting element of claim 1 , wherein
the first passivation layer and the periphery of the opening are covered with a second passivation layer.
3. The light-emitting element of claim 2 , wherein
the region of the conductive layer except a part to which the foreign substance is attached is covered with the second passivation layer.
4. The light-emitting element of claim 3 , wherein
the foreign substance is covered with the second passivation layer while a layer that is made of a same material as the second electrode and a layer that is made of a same material as the first passivation layer are formed above the foreign substance.
5. The light-emitting element of claim 4 , wherein
the light-emitting functional layer includes an organic light-emitting layer, and
the conductive layer is an electron transport layer that transports electrons to the organic light-emitting layer.
6. The light-emitting element of claim 1 , wherein
the region of the conductive layer except a part to which the foreign substance is attached is covered with a second passivation layer.
7. The light-emitting element of claim 6 , wherein
the foreign substance is covered with the second passivation layer while a layer that is made of a same material as the second electrode and a layer that is made of a same material as the first passivation layer are formed above the foreign substance.
8. The light-emitting element of claim 1 , wherein
the light-emitting functional layer includes an organic light-emitting layer, and
the conductive layer is an electron transport layer that transports electrons to the organic light-emitting layer.