US 12,075,660 B2
Display device
Ki Ho Bang, Hwaseong-si (KR); Eun Hye Kim, Namyangju-si (KR); and Sang Hyun Jun, Suwon-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed by Samsung Display Co., Ltd., Yongin-si (KR)
Filed on Feb. 22, 2023, as Appl. No. 18/112,698.
Application 18/112,698 is a continuation of application No. 17/118,840, filed on Dec. 11, 2020, granted, now 11,594,590.
Application 17/118,840 is a continuation of application No. 16/535,299, filed on Aug. 8, 2019, granted, now 10,886,326, issued on Jan. 5, 2021.
Claims priority of application No. 10-2018-0140837 (KR), filed on Nov. 15, 2018.
Prior Publication US 2023/0200164 A1, Jun. 22, 2023
Int. Cl. H10K 59/124 (2023.01); H01L 23/29 (2006.01); H01L 23/31 (2006.01); H01L 27/15 (2006.01); H10K 59/122 (2023.01); H10K 59/131 (2023.01); H10K 102/00 (2023.01)
CPC H10K 59/124 (2023.02) [H01L 23/293 (2013.01); H01L 23/3135 (2013.01); H01L 27/15 (2013.01); H10K 59/122 (2023.02); H10K 59/131 (2023.02); H10K 59/1315 (2023.02); H10K 2102/351 (2023.02)] 14 Claims
OG exemplary drawing
 
1. A display device, comprising:
a substrate that includes a display area and a peripheral area;
a transistor in the display area;
a first electrode electrically connected to the transistor;
a second electrode that overlaps the first electrode;
a light emitting layer that is between the first electrode and the second electrode;
an organic insulation layer that is between the first electrode and the transistor and overlaps at least a part of the peripheral area; and
a valley penetrating the organic insulation layer and overlapping the peripheral area, the valley being wider at a top of the organic insulation layer than at a bottom of the organic insulation layer, the bottom of the valley directly contacting an electrically insulative layer, wherein
the transistor includes a semiconductor layer on the substrate, a gate electrode overlapping the semiconductor layer, and a source electrode and a drain electrode that are connected to the semiconductor layer, and
a first thickness of the organic insulation layer disposed in the display area is greater than a second thickness of the organic insulation layer disposed in the peripheral area.