US 12,225,806 B2
Display device
Sho Yanagisawa, Tokyo (JP); Tetsuo Morita, 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 Oct. 20, 2021, as Appl. No. 17/451,502.
Claims priority of application No. 2020-190930 (JP), filed on Nov. 17, 2020.
Prior Publication US 2022/0157899 A1, May 19, 2022
Int. Cl. H01L 27/32 (2006.01); H10K 59/122 (2023.01); H10K 59/131 (2023.01); H10K 59/88 (2023.01)
CPC H10K 59/88 (2023.02) [H10K 59/122 (2023.02); H10K 59/131 (2023.02)] 18 Claims
OG exemplary drawing
 
1. A display device comprising:
a substrate;
a first insulating layer arranged on the substrate;
a first pixel electrode arranged on the first insulating layer in a pixel located in a display region;
a second pixel electrode arranged on the first insulating layer in a dummy pixel located in a surrounding region outside the display region;
a second insulating layer arranged on the first insulating layer, and having an opening overlapping the first pixel electrode;
a first organic layer arranged in the pixel, and being in contact with the first pixel electrode through the opening;
a second organic layer arranged in the dummy pixel;
a first feed line and a second feed line arranged on the second insulating layer;
a first partition arranged on the first feed line;
a second partition arranged on the second feed line; and
a common electrode including a first part covering the first organic layer and a second part covering the second organic layer, wherein
the first organic layer is located between the first partition and the second partition, and is separated from the first partition and the second partition,
the second feed line and the second partition are located between the first organic layer and the second organic layer,
the first partition and the second partition each are shaped such that a width of an upper part is greater than a width of a lower part, and
the first part is in contact with the first feed line between the first partition and the first organic layer.