US 12,342,684 B2
Display device
Tetsuo Morita, Tokyo (JP); Sho Yanagisawa, Tokyo (JP); Kenji Harada, Tokyo (JP); Hiroshi Tabatake, Tokyo (JP); and Hideyuki Takahashi, Tokyo (JP)
Assigned to Japan Display Inc., Tokyo (JP)
Filed by Japan Display Inc., Tokyo (JP)
Filed on Apr. 5, 2022, as Appl. No. 17/657,955.
Claims priority of application No. 2021-076010 (JP), filed on Apr. 28, 2021.
Prior Publication US 2022/0352269 A1, Nov. 3, 2022
Int. Cl. H10K 59/122 (2023.01); H10K 50/813 (2023.01); H10K 50/824 (2023.01); H10K 59/38 (2023.01)
CPC H10K 59/122 (2023.02) [H10K 50/824 (2023.02); H10K 50/813 (2023.02); H10K 59/38 (2023.02)] 11 Claims
OG exemplary drawing
 
1. A display device comprising:
a base;
a first insulating layer disposed on the base;
a first lower electrode disposed on the first insulating layer;
a second lower electrode disposed on the first insulating layer, the second lower electrode being separated from the first lower electrode and being formed of the same material as the first lower electrode;
a first wiring disposed between the first lower electrode and the second lower electrode;
a second insulating layer disposed on the first wiring;
a first organic layer disposed on the first lower electrode and including a first light-emitting layer;
a second organic layer disposed on the second lower electrode and including a second light-emitting layer;
a first separation wall disposed on the second insulating layer; and
an upper wiring disposed continuously on the first organic layer, the second organic layer, and the first separation wall, wherein
the upper wiring is electrically connected to the first wiring via a contact hole that penetrates the first separation wall and the second insulating layer,
the second insulating layer includes an intersection where a first portion extending in a first direction intersects with a second portion extending in a second direction that intersects with the first direction,
the contact hole is formed on the intersection,
the first separation wall and the first wiring are superposed,
the second insulating layer covers a first edge of the first lower electrode and a second edge of the second lower electrode,
the first wiring is disposed in a lattice shape and surrounds the first lower electrode and the second lower electrode,
the first separation wall is disposed in a lattice shape and surrounds the first lower electrode and the second lower electrode, and
a width of the first separation wall is smaller than a width of the second insulating layer.