US 12,262,580 B2
Display device including an organic light-emitting diode (OLED)
Jun Nitta, Tokyo (JP)
Assigned to Japan Display Inc., Tokyo (JP)
Filed by Japan Display Inc., Tokyo (JP)
Filed on Dec. 8, 2021, as Appl. No. 17/545,440.
Claims priority of application No. 2020-209472 (JP), filed on Dec. 17, 2020.
Prior Publication US 2022/0199937 A1, Jun. 23, 2022
Int. Cl. H10K 50/822 (2023.01); H10K 59/122 (2023.01); H10K 71/16 (2023.01)
CPC H10K 50/822 (2023.02) [H10K 59/122 (2023.02); H10K 71/164 (2023.02)] 8 Claims
OG exemplary drawing
 
1. A display device comprising:
an insulating substrate;
a first insulating layer arranged on the insulating substrate;
a first lower electrode, a second lower electrode, and a third lower electrode arranged on the first insulating layer in this order;
a second insulating layer arranged on the first insulating layer, and including a first opening overlapping the first lower electrode, a second opening overlapping the second lower electrode, and a third opening overlapping the third lower electrode;
a first partition arranged on the second insulating layer between the first opening and the second opening;
a second partition arranged on the second insulating layer between the second opening and the third opening;
a first organic layer including a light emitting layer, arranged in the first opening, and covering the first lower electrode;
a first upper electrode covering the first organic layer;
a second organic layer including a light emitting layer, arranged in the second opening, and covering the second lower electrode; and
a second upper electrode covering the second organic layer, wherein
each of the first partition and the second partition has:
a first layer arranged on the second insulating layer and formed of a metal material; and
a second layer arranged on the first layer and protruding from the first layer,
the first layer is in a form of a lattice in planar view,
the second layer of the first partition is asymmetrical from a side facing the first opening and a side facing the second opening,
the second layer of the second partition is asymmetrical from a side facing the second opening and a side facing the third opening,
the second upper electrode is located between the first partition and the second partition, is in contact with the first layer directly below the second layer of the first partition, and is separated from the first layer of the second partition.