US 11,730,049 B2
Display device
Ye Chan Goh, Hwaseong-si (KR); Byung Hoon Chae, Asan-si (KR); Gil Jae Choi, Cheonan-si (KR); and Seung Kyun Hong, Cheonan-si (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by Samsung Display Co., Ltd., Yongin-si (KR)
Filed on Mar. 5, 2019, as Appl. No. 16/293,504.
Claims priority of application No. 10-2018-0044136 (KR), filed on Apr. 16, 2018.
Prior Publication US 2019/0319201 A1, Oct. 17, 2019
Int. Cl. B32B 3/26 (2006.01); H10K 77/10 (2023.01); B32B 3/30 (2006.01); H10K 59/131 (2023.01); H10K 50/844 (2023.01); H10K 102/00 (2023.01)
CPC H10K 77/111 (2023.02) [B32B 3/263 (2013.01); B32B 3/30 (2013.01); H10K 59/131 (2023.02); H10K 50/844 (2023.02); H10K 2102/311 (2023.02)] 12 Claims
OG exemplary drawing
 
1. A display device having a display area and a non-display area disposed in a vicinity of the display area and comprising a bending area, the display device comprising:
a substrate;
a third organic insulating layer disposed on the substrate;
an inorganic insulating layer disposed between the third organic insulating layer and the substrate and including an inorganic insulating opening which exposes the substrate;
a first organic insulating layer at least partially filling the inorganic insulating opening and contacting the substrate;
a second organic insulating layer disposed between the third organic insulating layer and the substrate; and
a trench structure disposed in the non-display area, the trench structure comprising an uncovered open top, sidewalls formed by the third organic insulating layer, and a bottom surface located in the bending area,
wherein the bending area is disposed on a side of the display area,
wherein the non-display area further includes a dam area between the bending area and the display area,
wherein a dam portion including the third organic insulating layer is disposed in the dam area,
wherein the inorganic insulating opening overlaps with the trench structure and a width of the inorganic insulating opening is greater than a width of the trench structure,
wherein the display device comprises a first side extending along a first direction and a second side extending along a second direction intersecting the first direction,
wherein the bending area is located in the first direction with respect to the display area,
wherein a length of the bending area is greater than a length of the trench in the second direction, and
wherein a width of the trench, in the first direction, is the same as a width of the bending area, in the first direction.