US 11,672,159 B2
Display apparatus having dummy contact holes
Juhee Hyeon, Yongin-si (KR); Hyunchol Bang, Yongin-si (KR); and Youngtaeg Jung, Yongin-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed by Samsung Display Co., Ltd., Yongin-si (KR)
Filed on Mar. 22, 2021, as Appl. No. 17/208,562.
Application 17/208,562 is a continuation of application No. 16/123,270, filed on Sep. 6, 2018, granted, now 10,978,519.
Claims priority of application No. 10-2017-0176487 (KR), filed on Dec. 20, 2017.
Prior Publication US 2021/0210566 A1, Jul. 8, 2021
Int. Cl. H10K 59/88 (2023.01); H10K 50/15 (2023.01); H10K 50/16 (2023.01); H01L 27/32 (2006.01); H01L 51/50 (2006.01); H01L 51/10 (2006.01); G09G 3/3225 (2016.01)
CPC H01L 27/3223 (2013.01) [G09G 3/3225 (2013.01); H01L 27/3246 (2013.01); H01L 27/3276 (2013.01); H01L 51/105 (2013.01); H01L 51/5012 (2013.01); H01L 51/5056 (2013.01); H01L 51/5072 (2013.01); H01L 51/5092 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A display apparatus, comprising:
a substrate including a display area and a peripheral area outside the display area;
a first drive circuit located in the peripheral area, the first drive circuit to generate a scan signal and apply the scan signal to a thin film transistor that is located in the display area and is electrically connected to a pixel electrode;
a first insulating layer over the substrate in the display area and the peripheral area, the first insulating layer including a plurality of first contact holes located in the display area and a plurality of first dummy contact holes in the peripheral area such that the plurality of first dummy contact holes are located between the plurality of first contact holes and the first drive circuit; and
a second insulating layer disposed over the first insulating layer and filling the plurality of first dummy contact holes.