US 12,114,550 B2
Display device
Hayata Aoki, Tokyo (JP); Hiroumi Kinjo, Tokyo (JP); and Masumi Nishimura, Tokyo (JP)
Assigned to Japan Display Inc., Tokyo (JP)
Filed by Japan Display Inc., Tokyo (JP)
Filed on Oct. 5, 2023, as Appl. No. 18/481,293.
Application 18/481,293 is a continuation of application No. 17/645,161, filed on Dec. 20, 2021, granted, now 11,818,930.
Claims priority of application No. 2020-217104 (JP), filed on Dec. 25, 2020.
Prior Publication US 2024/0040872 A1, Feb. 1, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H10K 59/131 (2023.01); H10K 50/86 (2023.01); H10K 59/122 (2023.01); H10K 59/35 (2023.01)
CPC H10K 59/131 (2023.02) [H10K 59/353 (2023.02)] 5 Claims
OG exemplary drawing
 
1. A display device comprising:
an insulating substrate;
a first insulating layer arranged on the insulating substrate;
a lower electrode arranged on the first insulating layer;
a second insulating layer arranged on the first insulating layer, comprising an opening overlapping the lower electrode, and being in a form of a lattice;
a feed line arranged on the second insulating layer, comprising a first line portion extending in a first direction, a second line portion extending in a second direction intersecting the first direction, and a third line portion being continuous with each of the first line portion and the second line portion and having a width different from a width of the first line portion and a width of the second line portion;
an organic layer including a light emitting layer, arranged in the opening, and covering the lower electrode;
an upper electrode in contact with each of the first line portion, the second line portion, and the third line portion, and covering the organic layer; and
a partition arranged on the feed line, wherein
the partition comprises a first layer comprising a side surface facing the opening, and a second layer overlapping the first layer and protruding from the side surface toward the opening,
the second layer is in a form of a lattice comprising a first part extending in the first direction and overlapping the first line portion, a second part extending in the second direction and overlapping the second line portion, and a third part continuous with the first part and the second part and overlapping the third line portion in planar view,
a width along the second direction of the third part is greater than a width along the second direction of the first part,
a width along the first direction of the third part is greater than a width along the first direction of the second part,
the third part includes an arc-shaped edge facing the opening,
a width along the second direction of the third line portion is less than or equal to the width along the second direction of the third part, and
a width along the first direction of the third line portion is less than or equal to the width along the first direction of the third part.