US 11,723,237 B2
Organic light-emitting display device and method of manufacturing the same
Duckjung Lee, Yongin-si (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by Samsung Display Co., Ltd., Yongin-si (KR)
Filed on Jul. 1, 2021, as Appl. No. 17/365,940.
Application 17/365,940 is a continuation of application No. 16/288,715, filed on Feb. 28, 2019, granted, now 11,056,547.
Claims priority of application No. 10-2018-0028268 (KR), filed on Mar. 9, 2018.
Prior Publication US 2021/0327981 A1, Oct. 21, 2021
Int. Cl. H10K 59/122 (2023.01); H10K 71/00 (2023.01); H10K 71/20 (2023.01); H10K 59/12 (2023.01)
CPC H10K 59/122 (2023.02) [H10K 71/00 (2023.02); H10K 71/221 (2023.02); H10K 59/1201 (2023.02)] 19 Claims
OG exemplary drawing
 
1. An organic light-emitting display device comprising:
a substrate;
a pixel electrode on the substrate;
a pixel defining layer having a first opening exposing a center portion of the pixel electrode;
a barrier layer on the pixel defining layer, the barrier layer having a second opening that is larger than the first opening and having an undercut structure in which an edge of a top surface of the barrier layer protrudes from an edge of a bottom surface of the barrier layer in a direction parallel to the substrate;
an intermediate layer comprising a first common layer, a first emissive layer, and a second common layer sequentially arranged on the pixel electrode, the pixel defining layer, and the barrier layer; and
a common electrode covering the intermediate layer,
wherein portions of the common electrode, which are arranged on the pixel electrode, the pixel defining layer, and the barrier layer, are connected to each other,
wherein portions of the first common layer are disconnected from each other at the undercut structure, and
wherein the intermediate layer contacts a sidewall of the barrier layer below the undercut structure, an underside of the undercut structure being at an angle relative to the sidewall.