US 11,917,846 B2
Display device having an oxide insulating film between subpixels and method for manufacturing the same
JoonYoung Heo, Paju-si (KR); YongMin Park, Paju-si (KR); KyungHoon Lee, Paju-si (KR); and YoungHoon Son, Paju-si (KR)
Assigned to LG Display Co., Ltd., Seoul (KR)
Filed by LG Display Co., Ltd., Seoul (KR)
Filed on May 26, 2022, as Appl. No. 17/825,099.
Application 17/825,099 is a continuation of application No. 17/028,571, filed on Sep. 22, 2020, granted, now 11,469,390.
Claims priority of application No. 10-2019-0116576 (KR), filed on Sep. 23, 2019.
Prior Publication US 2022/0302407 A1, Sep. 22, 2022
Int. Cl. H10K 50/818 (2023.01); H10K 50/125 (2023.01); H10K 59/12 (2023.01); H10K 71/00 (2023.01)
CPC H10K 50/818 (2023.02) [H10K 50/125 (2023.02); H10K 59/12 (2023.02); H10K 71/00 (2023.02)] 12 Claims
OG exemplary drawing
 
1. A display device comprising:
a substrate provided with a first subpixel and a second subpixel arranged to adjoin the first subpixel;
a first electrode provided in each of the first subpixel and the second subpixel on the substrate, and including a first material;
an oxide insulating film provided on at least a portion of a side of the first electrode, and including a second material; and
a light emitting layer provided on the first electrode, wherein the light emitting layer includes a plurality of layers including a common layer, wherein the common layer is disposed on the first electrode of the first subpixel and the first electrode of the second subpixel, the common layer connected between the first subpixel and the second subpixel,
wherein the first material is a metal material, and the second material is an oxide of the first material,
wherein the oxide insulating film is provided between the first electrode provided in the first subpixel and the first electrode provided in the second subpixel, and
wherein the common layer of the light emitting layer directly contacts the oxide insulating film between the first subpixel and the second subpixel.