US 12,193,262 B2
Display apparatus
Sunho Kim, Yongin-si (KR); Sunhee Lee, Yongin-si (KR); Gunhee Kim, Yongin-si (KR); and Hyun Kim, Yongin-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed by SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed on Aug. 19, 2020, as Appl. No. 16/997,101.
Claims priority of application No. 10-2019-0108931 (KR), filed on Sep. 3, 2019.
Prior Publication US 2021/0066661 A1, Mar. 4, 2021
Int. Cl. H10K 50/844 (2023.01); H10K 59/122 (2023.01); H10K 77/10 (2023.01); H10K 102/00 (2023.01)
CPC H10K 50/8445 (2023.02) [H10K 59/122 (2023.02); H10K 77/111 (2023.02); H10K 2102/311 (2023.02)] 16 Claims
OG exemplary drawing
 
1. A display apparatus comprising:
a substrate including a display area and a peripheral area surrounding the display area;
display elements arranged in the display area;
a spacer disposed between the display elements, the spacer including a lateral side having a first slope; and
a thin film encapsulation layer covering the display area, the thin film encapsulation layer comprising a buffer encapsulation layer, an inorganic encapsulation layer, an organic encapsulation layer, and a composite encapsulation layer sequentially stacked on one another,
wherein the composite encapsulation layer comprises a plurality of sub-layers stacked on each other, each of the sub-layers has a thickness that is less than a thickness of the inorganic encapsulation layer,
wherein an upper surface of the buffer encapsulation layer has a second slope that is smaller than the first slope, the second slope overlapping the first slope in a direction of a thickness of the substrate.
 
10. A display apparatus comprising:
a substrate including a display area and a peripheral area surrounding the display area;
display elements arranged in the display area; and
a thin film encapsulation layer covering the display area, the thin film encapsulation layer comprising an inorganic encapsulation layer, an organic encapsulation layer, and a composite encapsulation layer sequentially stacked on one another,
wherein the composite encapsulation layer comprises a plurality of sub-layers stacked on each other and a thickness of the composite encapsulation layer is less than a thickness of the inorganic encapsulation layer, wherein at least one sub-layer of the plurality of sub-layers includes an organic-inorganic hybrid material.
 
16. A flexible display apparatus comprising:
a flexible substrate including a display area and a peripheral area surrounding the display area;
display elements arranged in the display area;
a spacer disposed between the display elements, the spacer including a lateral side having a first slope; and
a thin film encapsulation layer covering the display area, the thin film encapsulation layer including a buffer encapsulation layer disposed above the display area and an inorganic encapsulation layer disposed above the buffer encapsulation layer, the buffer encapsulation layer comprising an organic-inorganic hybrid material;
wherein an upper surface of the buffer encapsulation layer has a second slope that is smaller than the first slope, the second slope overlapping the first slope in a direction of a thickness of the substrate.