US 12,408,519 B2
Display apparatus and method of manufacturing the same
Junhee Lee, Hwaseong-si (KR); Kiseong Seo, Seoul (KR); and Deok Hoi Kim, Seongnam-si (KR)
Assigned to Samsung Display Co., Ltd., Gyeonggi-Do (KR)
Filed by Samsung Display Co., Ltd., Yongin-si (KR)
Filed on Dec. 30, 2021, as Appl. No. 17/565,925.
Application 17/565,925 is a division of application No. 16/592,138, filed on Oct. 3, 2019, granted, now 11,239,300.
Claims priority of application No. 10-2018-0149132 (KR), filed on Nov. 28, 2018.
Prior Publication US 2022/0123085 A1, Apr. 21, 2022
Int. Cl. H10K 59/126 (2023.01); H10K 59/12 (2023.01); H10K 59/131 (2023.01); H10K 77/10 (2023.01)
CPC H10K 59/126 (2023.02) [H10K 59/131 (2023.02); H10K 77/111 (2023.02); H10K 59/1201 (2023.02)] 12 Claims
OG exemplary drawing
 
1. A method of manufacturing a display apparatus, the method comprising:
forming a conductive layer on a base substrate;
forming a buffer layer on the conductive layer;
forming an active pattern on the buffer layer;
forming an insulating layer on the active pattern;
forming a contact hole by partially removing the insulating layer and the buffer layer to expose the conductive layer;
forming an electrode that contacts the conductive layer in the contact hole;
forming an insulating pattern on the electrode so as to expose a portion of the electrode with a portion of the insulating pattern disposed in the contact hole; and
forming a wiring on the insulating pattern, the wiring being electrically connected to the electrode.