US 12,376,432 B2
Method of manufacturing display device and display device
Jong Chan Lee, Yongin-si (KR); Cheol Ku Kang, Yongin-si (KR); Hyun Kim, Yongin-si (KR); Jeong Su Park, Yongin-si (KR); Myeong Hun Song, Yongin-si (KR); and Hyun Wook Lee, Yongin-si (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by Samsung Display Co., LTD., Yongin-si (KR)
Filed on Mar. 21, 2022, as Appl. No. 17/699,426.
Claims priority of application No. 10-2021-0045458 (KR), filed on Apr. 7, 2021.
Prior Publication US 2022/0328726 A1, Oct. 13, 2022
Int. Cl. H10H 20/831 (2025.01); H10H 20/01 (2025.01); H10H 20/857 (2025.01)
CPC H10H 20/8312 (2025.01) [H10H 20/01 (2025.01); H10H 20/857 (2025.01); H10H 20/032 (2025.01); H10H 20/0364 (2025.01)] 5 Claims
OG exemplary drawing
 
1. A display device comprising:
a substrate comprising a light emitting area and a non-light emitting area;
a first electrode and a second electrode on the substrate;
a light emitting element on the light emitting area of the substrate and configured to emit light in a display direction;
a first insulating film covering at least a portion of each of the first electrode and the second electrode;
a first contact electrode and a second contact electrode electrically connected to the light emitting element; and
a bank on the non-light emitting area of the substrate and protruding in the display direction,
wherein at least a portion of the light emitting area is surrounded by the non-light emitting area, and the light emitting area comprises an open area and a contact area,
the first electrode and the first contact electrode are electrically connected within the contact area,
the second electrode and the second contact electrode are electrically connected within the contact area,
an end portion of the first electrode and an end portion of the second electrode are located within the open area,
the first insulating film includes an insulating end portion formed in the open area, and
the end portion of the first electrode and the insulating end portion are overlapped along the display direction in the open area.
 
4. A display device comprising:
a substrate comprising a light emitting area and a non-light emitting area;
a first electrode and a second electrode on the substrate;
a light emitting element on the light emitting area of the substrate and configured to emit light in a display direction;
a first contact electrode and a second contact electrode electrically connected to the light emitting element;
a bank on the non-light emitting area of the substrate and protruding in the display direction;
a bridge electrode electrically connecting the second contact electrode and the second electrode;
a first insulating film covering at least a portion of each of the first electrode and the second electrode; and
a first contact hole and a second contact hole penetrating the first insulating film in the contact area,
wherein at least a portion of the light emitting area is surrounded by the non-light emitting area, and the light emitting area comprises an open area and a contact area,
the first electrode and the first contact electrode are electrically connected within the contact area,
the second electrode and the second contact electrode are electrically connected within the contact area,
an end portion of the first electrode and an end portion of the second electrode are located within the open area, and
in a plan view, the first contact electrode, the first contact hole, and the first electrode overlap each other, and the second contact electrode, the second contact hole, the bridge electrode, and the second electrode overlap each other.