US 12,464,903 B2
Display device
Nobuo Imai, Tokyo (JP); and Hiroshi Ogawa, Tokyo (JP)
Assigned to Magnolia White Corporation, Tokyo (JP)
Filed by Magnolia White Corporation, Tokyo (JP)
Filed on Jun. 6, 2023, as Appl. No. 18/329,594.
Claims priority of application No. 2022-094446 (JP), filed on Jun. 10, 2022.
Prior Publication US 2023/0403886 A1, Dec. 14, 2023
Int. Cl. H10K 59/122 (2023.01); H10K 59/12 (2023.01); H10K 59/35 (2023.01)
CPC H10K 59/122 (2023.02) [H10K 59/1201 (2023.02); H10K 59/352 (2023.02)] 10 Claims
OG exemplary drawing
 
1. A display device comprising:
a substrate;
a lower electrode provided above the substrate;
a rib formed of an inorganic insulating material and comprising an aperture overlapping the lower electrode;
a partition comprising a lower portion provided on the rib and formed of a conductive material, and an upper portion provided on the lower portion and protruding from a side surface of the lower portion;
an organic layer provided on the lower electrode in the aperture;
an upper electrode provided on the organic layer;
a cap layer provided on the upper electrode; and
a sealing layer which covers the cap layer and is in contact with the lower portion of the partition, wherein
an edge of the aperture includes a first linear portion, a second linear portion and a curved portion connected to the first linear portion and the second linear portion, and
an angle between the first linear portion and the second linear portion is greater than or equal to 90°.