US 11,700,761 B2
Manufacturing method of display apparatus utilizing dam portion and display apparatus manufactured using the method
Mijung Han, Yongin-si (KR); Heena Kim, Yongin-si (KR); and Sangjin Park, Yongin-si (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by Samsung Display Co., Ltd., Yongin-si (KR)
Filed on Dec. 21, 2020, as Appl. No. 17/129,580.
Application 17/129,580 is a continuation of application No. 16/437,792, filed on Jun. 11, 2019, granted, now 10,886,505.
Claims priority of application No. 10-2018-0093138 (KR), filed on Aug. 9, 2018.
Prior Publication US 2021/0151718 A1, May 20, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. H01L 51/56 (2006.01); H10K 71/00 (2023.01); H10K 59/12 (2023.01)
CPC H10K 71/00 (2023.02) [H10K 59/12 (2023.02); H10K 59/1201 (2023.02)] 20 Claims
OG exemplary drawing
 
1. A method of manufacturing a display apparatus, the method comprising:
forming a first pixel electrode for emission of a first color on a substrate;
forming an insulating layer, the insulating layer covering edges of the first pixel electrode, and defining a first opening exposing a center portion of the first pixel electrode;
forming a first dam portion on the insulating layer around the first opening;
forming a first lift-off layer on the insulating layer around an outside of the first dam portion and defining an opening exposing the first pixel electrode;
forming a first mask layer on the first lift-off layer, the first mask layer defining a first open portion corresponding to the first opening;
forming a first intermediate layer on the first pixel electrode through the first open portion;
forming a first opposite electrode on the first intermediate layer through the first open portion;
forming a first insulating protective layer on the first opposite electrode through the first open portion; and
removing the first mask layer, the first lift-off layer, and the first dam portion.