US 11,818,914 B2
Display device
Takayasu Suzuki, Tokyo (JP); and Toshihiro Sato, Tokyo (JP)
Assigned to Japan Display Inc., Tokyo (JP)
Filed by Japan Display Inc., Tokyo (JP)
Filed on Nov. 7, 2022, as Appl. No. 17/981,601.
Application 17/981,601 is a continuation of application No. 17/214,060, filed on Mar. 26, 2021, granted, now 11,522,158.
Application 17/214,060 is a continuation of application No. 16/744,416, filed on Jan. 16, 2020, granted, now 10,991,907, issued on Apr. 27, 2021.
Application 16/744,416 is a continuation of application No. 16/428,254, filed on May 31, 2019, granted, now 10,573,845, issued on Feb. 25, 2020.
Application 16/428,254 is a continuation of application No. 16/166,861, filed on Oct. 22, 2018, granted, now 10,355,238, issued on Jul. 16, 2019.
Application 16/166,861 is a continuation of application No. 15/964,405, filed on Apr. 27, 2018, granted, now 10,141,539, issued on Nov. 27, 2018.
Application 15/964,405 is a continuation of application No. 15/205,142, filed on Jul. 8, 2016, granted, now 10,003,045, issued on Jun. 19, 2018.
Claims priority of application No. 2015-139217 (JP), filed on Jul. 10, 2015.
Prior Publication US 2023/0054859 A1, Feb. 23, 2023
Int. Cl. H01L 27/32 (2006.01); H10K 50/844 (2023.01); H10K 50/842 (2023.01); H10K 50/84 (2023.01); H10K 59/124 (2023.01); H10K 71/50 (2023.01)
CPC H10K 50/844 (2023.02) [H10K 50/846 (2023.02); H10K 50/8426 (2023.02); H10K 50/8428 (2023.02); H10K 59/124 (2023.02); H10K 71/50 (2023.02)] 16 Claims
OG exemplary drawing
 
1. A display device comprising:
a display area;
thin film transistors in the display area;
a first organic insulating layer covering the thin film transistors in the display area, and provided from the display area to a periphery of the display area;
a second organic insulating layer on the first organic insulating layer, and provided from the display area to the periphery of the display area;
a first inorganic insulating layer between the first organic insulating layer and the second organic insulating layer, and provided from the display area to the periphery of the display area; and
a second inorganic insulating layer on the second organic insulating layer, and provided from the display area to the periphery of the display area, wherein
the second organic insulating layer is provided between the first inorganic insulating layer and the second inorganic insulating layer,
the first organic insulating layer has a first groove in the periphery of the display area,
the second organic insulating layer has a second groove in the periphery of the display area,
the first groove overlaps the second groove, and
the first inorganic insulating layer is in contact with the second inorganic insulating layer, in the first groove.