US 11,943,959 B2
Display device including an encapsulation structure
Hyungue Song, Yongin-si (KR); Heeseong Jeong, Yongin-si (KR); and Sunhwa Kim, Yongin-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed by SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed on Dec. 22, 2021, as Appl. No. 17/645,713.
Application 17/645,713 is a continuation of application No. 16/822,437, filed on Mar. 18, 2020, granted, now 11,217,773.
Claims priority of application No. 10-2019-0062056 (KR), filed on May 27, 2019.
Prior Publication US 2022/0115628 A1, Apr. 14, 2022
Int. Cl. H01L 29/08 (2006.01); H10K 50/844 (2023.01); H10K 102/00 (2023.01)
CPC H10K 50/8445 (2023.02) [H10K 2102/00 (2023.02)] 16 Claims
OG exemplary drawing
 
1. A display device comprising:
a substrate;
a display element disposed over the substrate; and
an encapsulation layer on the display element, wherein the encapsulation layer comprises:
an organic encapsulation layer including a bottom surface facing the display element and a top surface opposite to the bottom surface;
a first inorganic encapsulation layer between the display element and the organic encapsulation layer;
a second inorganic encapsulation layer on the top surface of the organic encapsulation layer; and
an inorganic insulating layer on the bottom surface of the organic encapsulation layer to be interposed between the first inorganic encapsulation layer and the organic encapsulation layer, wherein the inorganic insulating layer comprises an oxygen-rich layer that has a refractive index less than a refractive index of the first inorganic encapsulation layer.